SOUTHERN REGIONAL POWER COMMITTEE · Web view28-29 December, 2015. However, the work has been delayed and KPTCL must expedite the same. Further, KPTCL shall issue NoC for injection

Contents1. Introduction.......................................................................................................................................32. Confirmation of the Minutes.............................................................................................................33. Roster for hosting Meetings of SRPC...............................................................................................34. Coal issues.........................................................................................................................................45. Membership of SRPC......................................................................................................................116. Establishment of state of the art unified centralized Network Management System U-NMS

for ISTS communication.................................................................................................................127. Roadmap to operationalize reserves in the country.........................................................................148. Crisis and Disaster Management Plan.............................................................................................179. Implementation of Automatic Meter Reading (AMR) in Southern Region....................................1910. RE Forecasting and Scheduling......................................................................................................2011. Transmission charges / sharing related issues.................................................................................2212. Preparation for meeting revised environment norms as per environment (Protection)

Amendment Rules, 2015.................................................................................................................2213. Status of DC/generation in ISGS.....................................................................................................2314. TTC/ATC........................................................................................................................................2415. Operation issues in respect of NPCIL Generating Stations in SR..................................................2516. Upcoming Transmission System.....................................................................................................2817. New Projects of NTPC, NLC, NPCIL, Joint Venture & UMPP.....................................................4218. New Projects of State Sector & IPP................................................................................................4419. Review of ULDC / SCADA / Communication...............................................................................4520. URTDSM (PMU) Project in Southern Region................................................................................4821. Optimum harnessing of RE in Southern Region.............................................................................4922. Monitoring of schemes funded from PSDF....................................................................................5123. Emergency Restoration System (ERS)............................................................................................5124. Issue of prevailing over Voltages in SR Grid..................................................................................5225. Progress of bus/line reactors to be commissioned in SR.................................................................5326. Transmission charges pertaining to NTPC- Kudgi STPS...............................................................5927. Inclusion of all bilateral billing (including RE generators) in RTA................................................6128. Pending payments between PCKL and KSEBL..............................................................................6229. Reactive energy charges between KPTCL and KSEBL.................................................................6330. Pending payments between WR & SR Constituents.......................................................................6331. Pending payments between CGS and Beneficiaries........................................................................6432. Certification of non-ISTS Transmission lines.................................................................................6533. Extension of construction power supply to upcoming KKNPP units 3 to 6 from KKNPP-

1&2..................................................................................................................................................6534. Compliance status of Phase-I and Phase-II of Protection Audit Recommendations......................6635. Implementation of Protection Suite / Protection Management System (PMS) for Southern

Region.............................................................................................................................................6736. Compliance status of Protection Audit Recommendations.............................................................6737. Review meeting on compliance of PCSC recommendations..........................................................6838. Conduction of Protection Audit of various 220 kV & above stations (substations as well as

generation switchyards) in Southern Region...................................................................................69

Agenda for the 36th TCC (31.01.2020) & 37th SRPC (01.02.2020) Meetings Page 1 of 94

39. IEGC related issues requiring attention/action................................................................................6940. Compliance of CEA Regulations for grid connectivity of Renewable Energy Sources.................8141. Scheduling of Solar Park.................................................................................................................8242. Upcoming Renewable Projects and their integration with transmission network...........................8343. Regular Interaction between CERC and RPCs...............................................................................8344. Amendment in CERC (Deviation Settlement Mechanism and related matters) Regulations

8445. Terms of Reference for Renewable integration – Task Force.........................................................8446. Opening and maintaining of adequate LC as payment security mechanism under PPAs by

Discom.............................................................................................................................................8547. Support of RE generators for reactive compensation......................................................................8748. Ramp rates/Technical Minimum/ Startup from Hot/Warm/Cold...................................................8749. PGCIL to engage in other business for optimum utilization of transmission assets.......................8850. Methodology of settlement of accounts for bilateral short term and collective transactions,

for the period of Grid Disturbance..................................................................................................8851. Grid Operation.................................................................................................................................8952. Reimbursement of SRPC expenditure.............................................................................................9353. Date & Venue of the 38th Meeting of SRPC & 37th Meeting of TCC..........................................93


Southern Regional Power CommitteeBengaluru

Agenda for 36th TCC & 37th SRPC Meetings (to be held on 31st January & 01st February 2020 at Hyderabad)

1. Introduction 1.1 The 36th Meeting of the Technical Coordination Committee (TCC) of SRPC would be

conducted on 31st January 2020 (Friday).

1.2 The 37th Meeting of Southern Regional Power Committee (SRPC) would be conducted on 01st February 2020 (Saturday).

1.3 TSGENCO/TSTRANSCO has kindly consented to host these meetings.

2. Confirmation of the Minutes

2.1 35 th Meeting of TCC held on 11 th July 2019 : Minutes was circulated vide letter dated

26th July 2019.

2.2 36 th Meeting of SRPC held 12 th July 2019: Minutes was circulated vide letter dated

03rd September 2019.

2.3 Minutes of the Meetings may be confirmed.

3. Roster for hosting Meetings of SRPC ( for SRPC deliberation only)

3.1 As per clause 8.2 of the SRPC (Conduct of Business) Rules, Meetings will be hosted by the member organizations as per the roster prepared by Member Secretary, SRPC in consultation with the members of the SRPC.

3.2 As per the roster and as agreed in the 35 th meeting of SRPC, 36th Meeting of SRPC was to be hosted by JSWEL (JSWEL had hosted 22nd Meeting of SRPC). But, in view of the letter received from JSWEL for withdrawal of membership, other member organisation (as per roster) NPCIL, SEIL, HNPCL & IL&FS were requested to host the 36 th Meeting of SRPC. Due to constraints/non-willingness by these member organisations, the meeting was kindly hosted by TANGEDCO/TANTRANSCO.

3.3 Meanwhile, JSWEL had informed that considering long-term relationship and upcoming opportunities in Southern Region, they wish to continue Membership of SRPC and would like to withdraw their letter.

3.4 The following roster was finalized in the 36th Meeting of SRPC held on 12th July 2019:

1 JSWEL 10 CEPL2 NPCIL 11 Karnataka3 SEIL 12 NTECL4 HNPCL 13 Kerala


5 IL&FS 14 NLCIL/NTPL6 Telangana 15 PGCIL7 NTPC 16 UPCL/APL8 Andhra Pradesh 17 Tamil Nadu9 PTC

3.5 SRPC Secretariat requested JSWEL, NPCIL, SEIL, HNPCL and IL&FS (as per roster) to host the 37th Meeting of SRPC which was not consented.

3.6 In view of the above, Member Secretary, SRPC requested CMD, TSGENCO/TSTRANSCO to host the meeting and TSGENCO/TSTRANSCO kindly consented to host the meetings at Hyderabad.

SRPC may formulate firm procedure for hosting future meetings.

4. Coal issues (for SRPC deliberation only)

A number of thermal power stations in the Region had faced critical coal stock situation in the past period.

4.1 Coal Supply Issues

a) NTPC-Talcher Stage-II

Total coal requirement: 55,000 to 58,000 tons/day. Lingaraj mines coal quality (60% of total coal quantity) is poor with GCV as low as

2,600 kcal/kg. Kaniha mines coal quality is slightly better than that of Lingaraj OCP. But it was

only about 30% of the total coal quantity.

b) NTPC-Simhadri

Requirement of NTPC Simhadri was around 10 rakes/day for sustained operation of the units (7 rakes from MCL (Talcher), 2 rakes from MCL(Ib) and 1 rake from ECL).

c) NTPC-Ramagundam

NTPC had suggested for amending the Fuel Supply Agreement for Stage-III of NTPC Ramagundam. Presently, FSA for Stage-III is only 10 Lakhs MT per Annum and the remaining coal requirement is met through MOU quantity for which they are paying additional premium of 20% over and above notified price of coal. Issue is to be taken up with SCCL for amending the FSA quantity to 25 LMT.

NTPC had stated that SCCL must install Auto Sampler in other silos and sample collections must be done as per standard prescribed guidelines.

d) APGENCO

MCL had stated that APGENCO needs to coordinate with Railways for enhanced materialization of raw and washed coal. Linkage is for 24,000 LT/day in which 11,000 LT/day is through Washery mode and the rest through Railways for which four rakes are required. But railway is allotting lesser number of rakes.


APGENCO had informed that 800 MW units (one at Dr NTTPS and one at Krishnapatnam) would be commissioned in December, 2019 and they have tie up with Washery. Hence had requested coal companies/ railways to enhance coal supply/rake allotment.

APGENCO vide letter dated 11.11.2019 (Annexure-I) had communicated the following to Ministry of Coal, Mines and Parliamentary Affairs regarding the coal issues faced by APGENCO. APGENCO had entered into an MoU with MCL for supply of 3.60 million tonnes of raw coal through road mode washery circuit. The transportation of raw coal from mines is being carried out by our washery operator M/s. Spectrum Coal and Power Limited. APGENCO is facing severe constraints in lifting of raw coal allotted through road mode, mines from Balaram OCP, Hingula OCP, Bharatpur OCP & Bharatpur OCP. Considering that there is severe shortage of coal at APGENCO Thermal plants, APGENCO had requested Joint Secretary-CPD, MoC to kindly give necessary directions to MCL for not considering the referred quantities as deemed delivery and permit dispatch of the same in future as raw coal directly to APGENCO by all rail Route.

In 162nd OCC meeting held on 10.12.2019, APGENCO had informed that the problem of Balaram OCP is temporarily solved. But the problem from Hingula OCP and Bharatpur OCP are still persisting. Apart from this, MCL had given a circular dated 28.11.2019 had informed that allocation of coal for the month of December 2019 shall be restricted to Trigger Level against the Monthly Scheduled Quantity. Accordingly, the Railway Program submitted by APGENCO for the month of December 2019 as per MSQ is endorsed by MCL by reducing the rakes as follows:

Station MSQ Trigger levelDr.NTTPS-I, II & III 100% 90% of MSQDr.NTTPS-IV 95% 75% of MSQRyTPP-IV 95% 75% of MSQ

APGENCO management had requested MCL, to supply Monthly Scheduled Quantity (MSQ) without restricting the quantity to minimum commitment level.

e) KPCL

KPCL request was for 9-10 rakes/day.

KPCL had taken up the coal supply issues with MCL, SCL and ED (Coal), Railway Board.

Receipt of large quantity of boulders, non-coal materials & lumpy coal at RTPS (Agenda furnished by KPCL) As per FSA, coal companies are to supply coal sizes as below:

Coal Companies Coal Size in mmMCL -100/250mmSCCL -250mmWCL -100mm

During the period between 01.06.2019 to 18.06.2019, RTPS has received 21 rakes from UMSG source of WCL. It is observed that coal received from UMSG source contained huge boulders/stones/shales and other extraneous


materials to the extent of 400 MT resulting in huge financial burden due to levy of heavy demurrage charges by the railways for extra detention time taken for clearing UMSG rakes after railway free time of 7 hrs and caused damage and outage of coal handling system/equipment.

Following parts of CHP are damaged:o Damages to hopper grills and liner plates at wagon tipplers.o Damages to apron feeder.o Damages to conveyor transfer chutes.o Damage to internal of primary crusher.

Further KPCL has regularly addressing letters to WCL and requesting WCL to send their representatives to the TPS for joint inspection of stones. However, WCL have not sent their representatives to the site for joint inspection of large size boulders more than 250 mm collected and heaped at site.

f) TANGEDCO 13 rakes/day from MCL and 3 rakes/day from CCL/ECL were required.

The total coal required for TANGEDCO’s power stations is approximately 72,000 MT /day ie 20 rakes/day, and the total Fuel Supply Agreement (FSA) quantity including the side agreement is 22.95 Million Metric Tonnes/Annum. Total coal required for TANGEDCO’s power stations at 85 % PLF is approximately 61,000 MT /Day ie 16 rakes/day.

Issues with MCL

Government of Tamil Nadu has given consent for the TANGEDCO’s proposal to transfer 7000 MT of linkage quantity /day from the undelivered and unrealized quantity under flexi utilization of coal from MCL (Talcher & IB Valley) and purchase an equivalent of 330 MW power from pit head IPPs under case 4 methodology envisaged by MoP. For preparation of tender document power in lieu of transfer of coal under this methodology certain details from MCL has been sought and reply is awaited.

MCL had clarified that the linkage transfer needed to be taken up with either MoC or CIL and agreed to furnish the details sought by TANGEDCO.

g) NTECL

NTECL had expressed concern on low coal realization and had stated that MCL needs to improve the realization up to 80 %.

NTECL had expressed concern on the outstanding dues from TN, AP, TS and some of the DISCOMs of KPTCL. As NTECL payment to coal companies are pending due to shortage of funds, MCL and ECL had informed that further coal supply will be regulated.

h) NTPL


NTPL had informed that they were getting good support from MCL.

i) MCL

MCL had stated that the utilities (APGENCO, APPDCL and NTPL) availing coal through Washery mode should ensure that the Washery operators pick up sufficient raw coal in time. Lifting of coal by Washery had been poor. Utilities could take up the issues with Railways for lifting washed coal from Washery.

Most of the South bound stations taking coal through Paradip Port should also consider increasing off take at Damra and Vizag Ports to improve materialization.

MCL had appraised that coal from MCL is mainly of lower grade ie G13 and G14. For better yield, some coal of higher grade from other coal companies may be procured and blended. MCL had requested all the power plants to take some coal by Road and RCR mode since railways capacity is almost fixed. MCL had suggested that generating companies could procure rakes which would enhance materialization.

4.3 Grade Slippage Issues/CIMFR Issues

a) KPCL (Information furnished for this meeting)

KPCL appointed CIMFR as Third Party Agency for sampling and analysis of coal at all loading ends as per MoC guidelines. Accordingly, CIMFR started sampling and analysis of coal at loading points from December 2016. Further, KPCL appointed CIMFR for sampling and analysis of coal at unloading points also as per guidelines of MoC. CIMFR started work at unloading points from July 2017.

Following grade slippages noticed between loading and unloading end though CIMFR is carried out analysis at both ends during the periods from 2017-18, 2018-19 and 2019-20 for the rakes received from WCL, MCL and SCCL to KPCL.

i) Raichur Thermal Power Station (RTPS)i) Raichur Thermal Power Station (RTPS)

Period from August 2017 to March 2018

Colliery No. of rakes

No. of Samples

Grade Slip-1

Grade Slip-2

Grade Slip-3

Grade Slip-4

Grade Slip-5

Grade Slip-6

Grade Slip-7

Grade Slip-8

WCL 223 223 79 (35%)

45(20%)

13(6%)

8(4%)

3(1%) 0 0 0

MCL 177 177 72 (41%)

34(19%)

17(10%)

11(6%)

1(1%) 0 0 0

SCCL 673 673 268 (40%)

169 (25%)

65(10%)

14(2%)

7(1%)

2(0.2%) 0 0

Period from April 2018 to March 2019

WCL 199 540 152 (28%)

146 (27%)

67 (12%)

49 (9%)

21(4%)

7(1%) 1 1

MCL 221 221 76 (62%)

49 (22%)

19(9%)

3(6%) 1 0 0 0

SCCL 971 971 290 (33%)

266(27%)

157 (16%) 79 (8%) 26

(3%) 4 0 3

Period from April 2019 to Aug 2019

135 339 81 68 46 17 9 4 0 0


WCL (24%) (20%) (14%) (5%) (3%) (1%)

MCL 130 128 35 (27%)

18 (14%)

13 (10%)

3 (2%)

7 (5%)

6 (5%)

0 0

SCCL 531 531 133 (25%)

112 (21%)91 (17%) 46 (9%)

25 (5%) 9 (2%)

3 (1%)

2 (1%)

ii) Bellary Thermal Power Station (BTPS)

Period from August 2017 to March 2018

Colliery No. of rakes

No. of Samples

Grade Slip-1

Grade Slip-2

Grade Slip-3

Grade Slip-4

Grade Slip-5

Grade Slip-6

Grade Slip-7

Grade Slip-8

SCCL 326 326 140 (43%)

55 (17%)

13 (4%)

3 (1%) 0 0 0 0

Period from April 2018 to March 2019

SCCL 383 382 171 (45%)

78 (20%)

2 5 (7%)

6 (2%)

1 0 0 0

Period from April 2019 to Aug 2019

SCCL 200 199 74 (37%)

59 (30%)

21 (11%)

7 (4%) 0 1 0 1

Meeting was also held with CIMFR on 29.03.2019 at Head office, KPCL, Bengaluru to discuss on above issue. The reasons cited by the CIMFR is as follows:

i) In WCL: sample contains stones and lumps.

ii) In SCCL: Grade slippage is due to collections of samples for every 45 minutes from the conveyor belt. During the sampling of coal, good quality of coal is being collected at loading end whereas the quality of coal received at unloading end different one and also during loading to wagons lumps/stones are loaded at the bottom portion of wagon and good quality of coal on top which is leading to slippage in grades.

KPCL has addressed letters in this regards to coal companies ie WCL, SCCL and MCL for introduction of auto samplers to improve in quality of coal Grade slippage.

In recent meeting with Additional Secretary (Coal), Ministry of Coal, GoI, the above matter was discussed. Representatives of SCCL and CIL were present in the meeting. After the discussion, the Additional Secretary (Coal), felt that more scientific system could be evolved for better grade assessment of coal. It was decided that a committee or an expert group may be set up to access the effectiveness of the current sampling process as well as to suggest more effective sampling method to assess the grade of coal effectively.

b) APGENCO

APGENCO had requested CIMFR to send its team to VTPS & RyTPP for joint sampling.

When compared CIMFR analysis reports with unloading end (at RyTPP) analysis reports, Grade slippage of 2 to 7 grades is observed for the coal received from Mandamari, Manuguru and Rechini mines of SCCL. Further, when compared


CIMFR analysis reports with unloading end (RyTPP) analysis reports, Grade slippage of 2 to 4 grades is observed for the coal received from Tadikalpudi mines of SCCL.

In respect of coal loaded from Talcher mines of MCL to APGENCO up to 70% CIMFR results are showing 2 to 3 grades upgraded from the declared grades of the mines. Where, the declared grades are as approved by the Coal Controller of India on annual basis.

In view of the above, CIMFR is requested to take necessary care in collection and preparation of samples at the loading ends of the mines to get the correct representative sample, so that the grade slippages from loading end to unloading end are minimized.

c) NTPC NTPC had stated that there were 2 Grade slippages at Ramagundam. Auto

sampler had not been installed/not working at SCCL.

NTPC had pointed out that they had got separate agreement with CIMFR at unloading point and sampling was done at both the ends. Auto sampler at SCCL is installed but needs to stabilize.

d) NTPL

NTPL had informed that grade slippages were being observed in ECL supply (invoice for G11 while the supply was G15).

e) TANGEDCO

TANGEDCO had observed that reports by CIMFR need to be expedited to ensure payment curtailment, in a timely manner. The advance quantum would also get reduced considerably.

f) CIMFR

i) It was agreed that CIMFR would communicate any issue noticed on part of Coal Company to the Generating Company. Past issues may also be communicated. Generating Company would take up the issue at appropriate forum.

ii) CIMFR had stated that as decided in the earlier meetings, CIMFR representatives are visiting both the ends (wherever requested) to check and guide the sampling of coal. It was observed that sampling strategies at loading end (FSA) and unloading (BIS standard or own devised standards) differ. Oversize & selective loading was also observed at the Coal Companies’ Sidings with better coal on the top of wagons.

iii) Further, CIMFR had stated that a report was being prepared on Augur Coal Sampling (1.5 m depth sampling was adopted) Project implemented at NTPC, Kaniha. This Project was sponsored by NTPC and the Report would be submitted


within a month (draft report was submitted to NTPC). The same would also be submitted to BIS. CIMFR had requested that, till such time, Generating Companies may depute trained officials concerned, like chemists, to loading end.

iv) KPCL, NTPC, NTECL, NTPL, APGENCO & TANGEDCO had raised issues of grade slippages (specifically from ECL), challenges by coal companies on coal analysis report, coal companies doing sampling without the presence of representative posted, , auto coal sampling needed to be made operational on continuous basis, challenges with Referee Sample etc.

v) CIMFR had been requested to furnish a note on the all coal quality issues raised by the utilities so that it could be a part of the minutes of the meeting.

vi) CIMFR had assured that the issues would be taken up in the appropriate forums, like Apex Committee, Dispute Committee, Joint Secretary Level Committee etc.

4.4 Railway issues a) Railways

Railways had assured the SRPC forum that they were in touch with all utilities on a day-to-day basis and issues are being resolved. The Sub Group is meeting 2-3 times a week and priority is given to critical coal stock stations. Railways are increasing the fleet and around 3,500 BOXN & BOBR wagons had been added this year which are fit for coal transport. Orders for more than 25,000 Wagons are placed with the wagon manufacturers out of 3,600 (60-70 rakes) are BOBR wagons while the remaining are BOXN wagons. Generating Companies were requested to maintain consistent requisition to enable better planning of rake logistics. All concerned were also requested to take up the issue of low coal stock in the Sub Group meeting also.

b) APGENCO

APGENCO had stated that for washed coal less priority is being given by Railways. BOBR unloading facility is available at Vijayawada while at RyTPP the same is being developed and may come up in one year. Further railways had been requested to arrange rakes from the same siding as per SCCL program. APGENCO had requested railways to enhance rake allotment for 800 MW units (one at Dr NTTPS and One at Krishnapatnam) likely to be commissioned in December, 2019 for which, they have tie up with Washery.

Railways had stated that APGENCO had been requested to shift some loading to other Washery, away from Global Washery which APGENCO has done and therefore materialization had increased. Some electrification works are getting completed and thereafter electric train from Ib can come directly to Kondapalli. Thus traction changing issues were getting resolved.

c) KPCL

Total Rakes required per day from various sources for RTPS, BTPS and YTPS is 8 from SCCL, 3 from WCL & 4 from MCL. ECR (East Central Railway) to


allocate sufficient rakes to move the entire allocated quantity from MCL and for movement of coal through All Rail Route. SCR to provide sufficient rakes to move entire allocated quantity from SCCL to RTPS, BTPS & YTPS

KPCL had informed that at BTPS, tender had been floated for BOBR unloading facility had requested for Railways help in identifying bidders for the implementation BOBR unloading facility. It would take around 6 months to make it operational. For Yeramarus Siding, OH electrification by Railways was to be completed, inside the plant. Signaling and telecommunication works were over while overhead electrification works tendering was being taken up. One Wagon tippler works at Yeramarus TPP was completed and other tippler was almost ready for commissioning. KPCL had also requested Railways to take up the remaining works of parallel tracks within the plant at Raichur TPP on deposit basis.

Railways had agreed to take up pertinent issues of KPCL with SCR and other applicable wings.

d) TANGEDCO

Railways had stated that handling agent of ECL and CCL was having payment problem and Railways was forced to restrict loading at Haldia Port for TANGEDCO stations. CMD, TANGEDCO had been informed of this issue. TANGEDCO may resume taking coal, 2-3 rakes per day, from Vizag port, so that more coal supply can be ensured and indicated that ECL had restricted supply because of payment issues.

e) NTECL

NTECL had stated that have already shifted some rakes of Talcher and Ib to Damra and it would be further increased. Any additional cost of taking coal through Damra will be marginal compared to the loss due to shortage of coal.

SRPC may please deliberate.

5. Membership of SRPC 5.1 The Indian Wind Power Association (IWPA) vide letter dated 20th September 2019

(Annexure-II) has intimated that the Association wishes to apply for membership of Southern Regional Power Committee.

5.2 CEA vide letter dated 17.12.2019 (Annexure-III) desired that the issue of membership be discussed with the stakeholders.

5.2 It may please be noted that Ministry of Power Resolution establishing the Southern Regional Power Committee (SRPC) does not comprises IWPA as member of SRPC.

Recommendation of TCC would be put up to SRPC.


Agenda Items for SRPC Deliberation through TCC

6. Establishment of state of the art Unified centralized Network Management System (U-NMS) for ISTS communication

6.1 Communication Regulations provide for planning, implementation, operation and maintenance and up-gradation of reliable communicated system for all communication requirements including exchange of data for integrated operation of National Grid. All Users, SLDCs, RLDCs, NLDC, CEA, CTU, STUs, RPCs, REMC, FSP and Power Exchanges shall abide by the principles and procedure as applicable to them in accordance with these regulations. The nodal agency for planning and coordination for development of communication system for inter-State transmission system user shall be the Central Transmission Utility. The nodal agency for planning and coordination for development of communication system for State transmission system user shall be the State Transmission Utility. The following may be noted from the Regulation:

CTU shall be the Nodal Agency for supervision of Communication system in respect of inter-State communication system and will implement centralized supervision for quick fault detection and restoration. Further, in line with regulation of provisions of centralized supervision for quick fault detection and restoration of communication network of ISTS and all other Utilities by integrating its NMS with other users of NMS has been kept in the documents of Technical Standard & Manual of Communication Planning Criteria being finalized by CEA. In addition to this guideline on availability of communication system for ISTS has been submitted to CERC by NPC for which centralized U-NMS is considered essential.

Accordingly, CTU is to implement State of the Art Unified Network Management System (U-NMS) in a Control Center environment at National/Regional level.

6.2 The proposed U-NMS will acquire information of communication network of ISTS, State Utility and Cross Border communication system. The U-NMS application shall facilitate for controlling, managing, operation, fault detection and restoration and maintenance of ISTS and State communication system. It will be possible to integrate different make NMS and Network Element with proposed U-NMS (In U-NMS adequate provision shall be made to integrate upcoming nodes by having sufficient capacity ie 200%).

6.3 Following functions (Service Assurance, Service Fulfilment, Web Consoles and Ticketing etc) are considered in the proposed U-NMS (Applications / Functions may vary at NLDC/RLDCs/SLDCs – depending upon the Operational / Administrative Requirements):

a. Control Centre in NLDCb. Control Centre in RLDCsc. Workstation based Control Centre in SLDCs


6.4 The scheme shall be implemented by CTU/POWERGRID on tariff route basis and investment to be recovered as per CERC notification.

6.5 The scheme was deliberated in the 158th Meeting of OCC where the salient features of U-NMS were noted. The estimated cost is Rs 100 Crores for SR and Rs. 600 Crores for all regions including National level(excluding AMC cost and Civil Works). The estimated implementation schedule is 24 months from date of investment approval. The need of implementation of U-NMS at regional and national level was acknowledged by members and members were of the view that PSDF funding may be explored for implementation of U-NMS Project.

6.6 A special meeting was held on 07.11.2019 at SRPC, Bengaluru (MoM available at SRPC website) wherein, the following was agreed:

a) The members agreed in principle (technically) and recommended the scheme for approval of TCC/SRPC. There was no representation from APTRANSCO and TANTRANSCO in this meeting. However, they had agreed for the same in the earlier OCC Meetings.

b) CTU to approach for PSDF funding as the system would be used across the country and for cross border power flows also. The system was more important on national perspective.

c) State utilities will furnish the details sought in the format (prepared by LD&C, PGCIL) to PGCIL. The details of all NMS/EMS/Standalone systems which need to be integrated to U-NMS needs to be furnished.

d) It was stated by PGCIL that the U-NMS will monitor the fibres being exclusively used for Power Sector only.

e) States entities to include necessary terms in the agreement with Vendors before making procurement of new NMS/EMS equipment and software to ensure compatibility with U-NMS so that integration of new Nodes can be made with U-NMS without trouble shooting.

f) States entities to assess the propriety issues of existing NMS/EMS for integration with U-NMS.

g) LD&C, PGCIL will try to address the propriety issues of common vendors (ISTS & State sector).

h) LD&C, PGCIL assured of highest level of cyber security specifications in the U-NMS complying with all the applicable guidelines.

i) LD&C, PGCIL will hold regular consultation with the SR stakeholders at various stages of the project. For customized reports views of all the stakeholders will be sought. Analytics for predictive analysis and recommendations for efficient management would be discussed with stakeholders.

j) A console will be provided at SRPC (for certification of ISTS communication) also.

Recommendation of TCC would be put up to SRPC.


7. Roadmap to operationalize reserves in the country

7.1 In the 29th Meeting of SRPC it had been noted that Hon’ble CERC vide Order dated 13.10.2015 on Petition No. 11/SM/2015 in the matter of Roadmap to operationalize Reserves in the country had stated as follows:

(b) (ii) The Central Commission advises the State Commissions to issue orders for intra-state generators in line with this timeline as AGC is essential for reliable operation of India’s large inter-connected grid.

……………(d) In the long term, however, a market based framework is required for

efficient provision of secondary reserves from all generators across the country. For this, NLDC/POSOCO is directed to commission a detailed study through a consultant and suggest a proposal to the Commission for implementation by 1st April, 2017, giving due consideration to the experience gained in the implementation of Spinning Reserves w.e.f. 1st April, 2016.

7.2 Generating station under AGC as per CERC Order 319/RC/2018 dated 28.08.2019 Hon’ble CERC in the order had stated:

In the interest of reliable and safe grid operation, the Commission directs that all the ISGS stations whose tariff is determined or adopted by CERC shall be AGC-enabled and the ancillary services including secondary control through AGC be implemented as per the following direction:

i. All thermal ISGS stations with installed capacity of 200 MW and above and all hydro stations having capacity exceeding 25 MW excluding the Run-of-River Hydro Projects irrespective of size of the generating station and whose tariff is determined or adopted by CERC are directed to install equipment at the unit control rooms for transferring the required data for AGC as per the requirement to be notified by NLDC. NLDC shall notify the said requirements within one month of this order.

ii. All such ISGS stations whose tariff is determined or adopted by CERC shall have communication from the nearest wide band node to the RTU in the unit control room.

iii. The Central Transmission Utility (CTU) is directed to have communication availability from NLDC/ RLDCs to the nearest wide band node/ switchyard for the generating stations in a redundant and alternate path ensuring route diversity and dual communication.

iv. The NLDC is also directed to commission the required communication infrastructure.

v. The expenditure as a result of compliance of the above directions may be claimed as per relevant regulations or provisions of the PPA.

vi. The NLDC is directed to monitor implementation of the above directions so that all the ISGS stations whose tariff is determined or adopted by CERC are AGC-enabled within six months of this order.

vii. The framework regarding compensation for AGC support and deviation charges as stipulated in the Commission’s Order in Petition no. 79/RC/2017 dated 06.12.2017 shall apply to the five pilot projects as also to other ISGS as


and when they are AGC enabled. This arrangement shall remain in place till the relevant regulations interalia on compensation for AGC services are framed by the Commission.

viii. NLDC/RLDCs are allowed to operate the AGC system for enabling the signals to the power plants at the earliest.

ix. All new thermal ISGS stations with installed capacity of 200 MW and above and hydro stations having capacity exceeding 25 MW excluding the Run-of-River Hydro Projects irrespective of size of the generating station and whose tariff is determined or adopted by CERC shall mandatorily have the capability to provide AGC support.

7.3 NLDC vide letter dated 17.09.2019 (Annexure-IV) had communicated the minimum requirements for AGC connecting equipment at power plants based on the experience of the AGC Pilot Project. The list of plants identified for monitoring by NLDC as per CERC Order was also attached. All the power plants were requested to provide the infrastructure for meeting the specified requirements. Also, all the power plants were requested to take necessary action for arranging the communication (through redundant and alternate paths) from the existing nearest wideband communication node to the unit control room (where remote terminal unit would be located) through redundant fibre optic cables, in coordination with Central Transmission Utility (CTU). Therefore, it was requested that the arrangements may kindly be completed by the power plants before 31st January 2020. Any queries may please be emailed to [email protected].

7.4 A Special Meeting was also held on 03.10.2019 (MOM available at NLDC website) at NLDC to discuss on the requirements for AGC to be implemented at generator ends by the generators and activities to be undertaken by them for prompt implementation of AGC.

7.5 The following was noted in the OCC meetings:

NTPC Ramagundam had informed that they had taken all the details from Simhadri Station where AGC was already in place, and the activities were in progress.

NTPL had informed that they had convened a Meeting with M/s Siemens on 11.10.2019 and they had a site visit also. NTPL is planning to visit Simhadri Stage II during second week of November 2019.

NLCIL had informed that they had attended the Meeting on 03.10.2019 at NLDC and action had been initiated for budgetary offer.

NTECL informed that they didn’t get the Meeting Notice.

7.6 As requested by ED, NLDC vide letter dated 31.10.2019, ‘Communication availability for the AGC operation by NLDC for the applicable generating station as per CERC Order’, a meeting was held at SRPC, Bengaluru on 13.11.2019 (MoM available at SRPC website). Subsequently, NLDC vide letter dated 29.11.2019 (Annexure-V) has requested to include the above in the agenda.

7.7 AGC implementation in SR States

A meeting on implementation of AGC in SR states/NLCIL was held on 14th March


mailto:[email protected]

2019 (MoM available on SRPC website) wherein the following had been noted:

All SLDCs and respective generators were requested to kindly jointly finalize scope of work / technical specifications in an expeditious manner. The objective should be to complete the AGC project by end of December 2019.

It was suggested that SLDCs could have the AGC infrastructure keeping in view the perspective plan of integrating all the units (which would be wired for AGC) in their control area. If the SLDCs go for pilot project now, there may be a need for a full fledged AGC system in near future. The AGC at balance generating units could be rolled out in a phased manner.

SLDCs / generators were requested to kindly keep their respective SERCs informed.

7.8 The following had been noted in the earlier Meetings / 162nd Meeting of OCC: Andhra Pradesh (APGENCO: Krishnapattanam): APGENCO/APSLDC had

taken up with M/s GE. M/s GE had submitted a proposal for AGC at Krishnapatnam / APSLDC. Note has been put up to the management for budgetary approval.

Karnataka (KPCL: Sharavathy & Varahi): Sharavathy expected to be completed by end of January 2020. Varahi is expected by February 2020. Some part payment to M/s ABB has been released by M/s USAID. The final configuration would be taken up. The compensation mechanism was to be worked out in consultation with M/s PRDC and would be taken up with KERC.

Kerala (KSEBL: Kuttiadi & Idukki): A Committee had been formed with the representation from generators, SLDC and transmission wing and the committee would finalize the technical specifications. M/s ABB had visited Kuttiadi SS on 15.11.2019 and a Meeting was also held in this regard. On 16.12.2019 M/s ABB was scheduled to visit SLDC. Specifications would be finalized in next two to three Meetings.

Tamil Nadu (TANGEDCO: North Chennai Stage II and MTPS Stage II): TANGEDCO/TANTRANSCO had informed that the administrative approval was yet to be received and technical specifications are under preparation jointly by TANTRANSCO and TANGEDCO.

Telangana (TSGENCO: Kothagaudem E): DPR prepared and waiting for budgetary offer.

NLDC had informed that NP Kunta AGC was under discussion for the past two years and MoP has given permission to go ahead for NP Kunta AGC (Pilot project being undertaken by USAID). The scheme was targeted to be commissioned by February 2020. MoP has directed NTPC to absorb the losses. USAID would be conducting meeting with APSERC, APSLDC and AP Discoms appropriately. One more meeting with SR constituents was also planned and wherein complete details of the scheme would be discussed. AGC is planned only in one direction (backing down).


Status of AGC implementation may please be updated.

8. Crisis and Disaster Management Plan8.1 In the 36th Meeting of SRPC held on 12th July 2019, the Committee had approved the

Manual for recovery of electrical infrastructure during natural disaster. The following had been concluded in that meeting:

Chairperson, SRPC would take up with MoP for a scheme equipping the DISCOMs/TRANSCOs to be disaster resilience, creating separate fund for restoration of electrical infrastructures after natural disaster and for creation of central pool of spares to be used only during disaster.

The issue of local tunneling and localized high speed winds due to convection etc. would be taken up with Member (PS), CEA for carrying out specific study.

8.2 Accordingly, Chairperson, SRPC vide letter dated 02.08.2019 (Annexure-VI) had taken up the disaster management related issues with MoP and vide letter dated 13.09.2019 (Annexure-VII) had taken up the local tunneling and localized high speed winds due to convection issues with Chairperson, CEA

8.3 CEA vide letter dated 09.07.2019 had informed that in compliance to Section 37 of Disaster Management Act 2005, MoP in association with CEA has prepared Crisis and Disaster Management Plan (CDMP) for the Power Sector (available on CEA’s website http://cea.nic.in/reports/others/planning/pslf/cmp_powersector.pdf).

8.4 In compliance of CDMP and as advised by CEA, Regional Disaster Management Group (RDMG)-SR was constituted and the first meeting was held on 23.10.2019 (MOM available on SRPC website). There are number of actionable points as per CDMP which needs to be complied by the stake holders.

8.5 In the 1st RDMG meeting, the following was noted in respect of GENCOs:

Disaster Management plan would be updated by the GENCOs keeping in view the CDMP for power sector released by CEA / MoP and other guidelines etc and share it to RDMG. Cyber security aspects also needed to be included as per the CDMP.

All the GENCOs would furnish the list of personnel, materials/spares, equipments etc at each of the generating station which could be made available for affected entities during disaster to RDMG.

All the GENCOs would make efforts to make a help group with generating stations in near vicinity.

8.6 In the 1st RDMG meeting, the following was noted in respect of TRANSCOs/ DISCOMs:i. Disaster Management plan would be prepared / updated by the TRANSCOs /

DISCOMs / SLDCs keeping in view the CDMP for power sector released by CEA / MoP and other guidelines etc. The same would be submitted to RDMG.

ii. Assistance required from other states (TRANSCOs/ DISCOMs/ GENCOs), other states DSMA and other states Civil Defence would also be posted in the RDMG.


iii. Adequate number of ERS needed to be maintained as per the guidelines of CEA and as outlined in MoP directive.

iv. ERS Sub stations could also be considered appropriately by DISCOMs / TRANSCOs. The need of drones was also highlighted.

v. The issue of communication and their representation in various levels of Disaster Management groups would be taken up with CDMG.

vi. Lessons learnt on cyclones/flooding etc needed to be shared with RDMG.

vii. The details of OEMs, Electrical Contractors & Electrical Supervisors etc could be shared to the RDMG.

8.7 As noted in the 1st RDMG meeting, SRPC vide letter dated 30.10.2019 (Annexure-VIII) had taken up the communication agencies representation in RDMG and of extending help by state DMA & Civil defense to power sector of affected states through understanding / MoU to CEA for taking up with CDMG.

8.8 Constitution of Plant Level Emergency Group (EMG) has been communicated by the following entities:

SN Entity SN Entity SN Entity1 NTECL 4 NPCL 7 KPCL2 NTPL 5 UPCL 8 TANGEDCO (TTPS & NCTPS)3 HNPCL 6 KSEBL 9 APPDCL/SDSTPS

8.9 A meeting was held at MoP on 20.08.2019, considering Chairperson, SRPC letter dated 02.08.2019 (MoM at Annexure-IX). As per the MoM, the following needed to be furnished: Details of Nodal Officers of DISCOMs / TRANSCOs,

Requirement of spares (poles, conductors, cables, insulators, distribution transformers, DG sets etc), tools, machinery which could be stored at strategic locations by central agency. The commercial terms / procedure for utilizing the spares could also be suggested.

Need for communication equipment which may be maintained as centralized spares could also be specified.

State utilities also needed to look into the aspect of insurance from natural / manmade disasters for making the restoration of electrical infrastructure viable.

Details have been received only from KPTCL till date.

Status may please be updated.

8.10 Monitoring mechanism of mandatory/ critical spares in respect of Thermal stations

Hon’ble MoSP (I/c) during the meeting held on 01.08.2019 had directed CEA to take up the issue of availability of spare and inventory management with the power utilities. It was also suggested for preparing standard inventory lists of the minimum


spares requirement.

In the Meeting held on 23.09.2019, Member (Thermal), CEA it was noted that after finalizing the standardized mandatory/critical spare list, the monitoring mechanism may be set up involving regional offices of CEA to monitor on regional basis. Regional offices may take up this issue in monthly OCC Meetings for the compliance by power utilities. In case of further escalation or unresolved, it may be taken up with CEA for resolution of the same.

In the 160th meeting, OCC had suggested that as all GENCOs are having User name and password, a separate form for monitoring the spares may be created in CEA website. The details and status may be directly fed by the generators and it could be monitored centrally by CEA.

Recommendations of TCC would be put up to SRPC.

9. Implementation of Automatic Meter Reading (AMR) in Southern Region

9.1 In the 24th Meeting of SRPC held on 15th March 2014, SRPC had approved implementation of the AMR scheme by POWERGRID.

9.2 Need for AMR scheme had been felt keeping in view high RE ingress, amendments in DSM Regulations, SCADA related issues etc.

9.3 The following had been noted in the 35th & 36th Meetings of SRPC:

It had been agreed that PGCIL would furnish the technical specifications finalized in WR. These would be circulated to all the constituents and keeping the SAMAST guidelines and other requirements (AMR, 5 to 15 minutes online configurable, SCADA integration possibility etc), Committee of Stake holders would finalize the specification for SEMs in SR. The same would be passed on to POWERGRID for implementation in SR. SRPC had approved the way forward in this regard as had been proposed by TCC.

STUs would take appropriate action for their schemes separately, without linking it with this project.

A video conference (VC) /meeting was held on 07.03.2019/22.03.2019, to deliberate on the finalization of technical specifications required for the Interface Energy Meters (IEM) /SEM (with AMR, configurable recording intervals etc.),a presentation on features of SEM, issues faced and technical feasibilities were made. Based on the inputs from the meeting a draft technical specifications for SEM/IEM along with the scope of the scheme and technical specifications for AMR and draft technical details of Meter Data Processing (MDP), Historian, User Interface (UI) etc. within Interface Meter Data Centre (IMDC) to be implemented for SR along with details of existing meters has been prepared by PGCIL and circulated for suggestions/comments/observation of all concerned.

In the follow-up meeting held on 19th June 2019, it was agreed that PGCIL would


finalize the Technical specifications based the deliberations in the meeting.

In the 41st Meeting of Commercial Sub-Committee, PGCIL had agreed to come out on the scope of the work (including SEMs on all interstate feeders to be owned by respective transmission licensees or otherwise) and on the sharing principle for the complete AMR scheme.

PGCIL had informed that agreement has been entered in Western Region for on time payment settlement and for keeping some spare SEMs. The same is proposed for Southern Region also. The charges would be apportioned among the entities based on the number of SEMs. Entities would have the option to pay in advance or later based on the invoice.

It was agreed that PGCIL would take up the implementation of SEMs and raise invoice on utilities. PGCIL would inform the stakeholders about the cost implications (estimated cost and after implementation the final cost).

9.4 In the 160th OCCM (15.10.2019), it was suggested that Pilot SEMs could be installed to assess the performance. The final specifications for SEMs under AMR could be frozen after amendment of CEA Metering Regulations is notified. It was noted that PGCIL needed to take action in compliance of SRPC decision (not to link with other issues like common specifications for all the regions etc). In the 161st OCCM (08.11.2019), SR-II informed that they were in touch with SRLDC to finalize the specifications at SRLDC end.

9.5 In the 42nd Meeting of Commercial Sub-Committee held on 22nd October 2019, PGCIL had agreed to furnish the details of cost implications within two weeks. Subsequently, SRPC vide letter dated 18.11.2019 requested PGCIL (SR-II) to communicate the cost implication of AMR scheme in SR. In 162nd OCCM (10.12.2019), SR II assured that technical specifications (including at SRLDC control Centre) would be finalized within one month. The project may be completed in one year. All the states suggested PGCIL to take necessary steps to comply with SRPC decision.

PGCIL may update the status.

10. RE Forecasting and Scheduling

10.1 RE forecasting error is being submitted by SLDCs and being discussed in the OCC meetings. As a regular requirement, all states to furnish the implemented forecast, day ahead forecast & actuals for Wind and Solar by 5th of each month in respect of the past month.

10.2 CERC in its Order dated 06.06.2019 in Petition No 05/SM/2019 had determined the APPC at the National level as Rs. 3.60/kWh for the FY 2019-20.

10.3 The following had been noted in the 36th meeting of SRPC:

APTRANSCO: Mock RE DSM accounts have been prepared from January 2018 to June 2018. Actual RE DSM accounts have been prepared from July 2018 to December 2018 [Total amount: 4.5 Crores, out of which 1 Crore payment had been


received into a state pool account]. RE DSM accounts are under preparation from January 2019 onwards.

KPTCL: Actual RE DSM accounts have been prepared from December 2018 to February 2019 (Total amount: Rs.58,78,244 out of which Rs.25,20,981 had been received into a state pool account). Pavagada Solar Park is not included in the accounting. March 2019 onwards, RE DSM accounts are under preparation. KPTCL had informed that Pavagada is an UMSPP and scheduling is to be carried out by SRLDC. Scheduling by SRLDC was expected by December 2019.

KSEBL: KSEBL had informed that they had commenced RE forecasting for some quantum (80 MW/95 MW for Solar & 36 MW/70 MW for Wind) on day ahead basis for the purpose of scheduling and system management. After the issue of amendment in Grid Code by KERC, DSM accounts will be issued.

TANTRANSCO: TNERC has notified ‘TNERC (Forecasting, Scheduling, Deviation Settlement and Related Matters of Solar and Wind Generation Sources) Regulations, 2019 on 20.03.2019. The provisions relating to commercial arrangements and the provision regarding deviation charges and penalty shall come into force six months after the commencement of these Regulations (by September 2019). As per Notified Regulations, TANTRANSCO needed to submit the Draft Procedure for DSM Accounting to TNERC within 3 months (by 20.06.2019). Accordingly Draft procedure had been prepared and uploaded on website on 27.05.2019 for stake holders’ comments (comments to be received by 11.06.2019). Stake holders had requested for further extension of date for submitting their comments for which note had been prepared and submitted for higher management approval. The procedure after finalization would be submitted to TNERC for approval. DSM regulation would be implemented from 21.09.2019. However, RE forecasting and Scheduling is carried out for operational purposes.

TSTRANSCO: TSTRANSCO had informed that for RE DSM accounting Procedure has been prepared and submitted to TSERC for approval. Forecast data are being received from 3000 MW RE generators.

SRLDC: Scheduling of the following RE developers are carried out by SRLDC:

RE Pooling stations Installed Capacity (MW)NP KUNTA - Solar 650

Tuticorin PS-II - Wind 750

10.4 In the OCC Meetings, SRLDC had informed that IMD had offered that if states provide required space for installing the weather monitoring equipment at substations they will provide weather forecast information location wise to SLDCs also. SRLDC was requested to revert back with formal proposal after discussion with IMD.

The Status may please be updated.

11. Transmission charges / sharing related issues


11.1 CERC has brought out draft CERC (Sharing of inter-state transmission charges and losses) Regulations, 2019 on 31.10.2019). A Workshop in this regard has been arranged by CERC with STU/DISCOMs/SLDCs of SR/ER/NER and is scheduled on 06.01.2020.

11.2 Relinquishment Petitions (55/MP/2015; 303/MP/2015; 3/MP/2016; 137/MP/2016; 246/MP/2016; 11/MP/2017; 21/MP/2017 along with IA No.9/IA/2017; 129/MP/2017; 164/MP/2017; 169/MP/2017 along with IA No. 43/IA/2017; 253/MP/2017 along with IA No. 87/IA/2017) were heard by CERC on 03.09.2019. After hearing the learned senior counsel for the Petitioners and learned counsels for the Respondents, the Commission directed the Respondent, TANGEDCO to file its reply, on or before, 18.9.2019 with an advance copy to the Petitioners who may file their rejoinders, if any, by 27.9.2019.

The action taken may please be appraised.

12. Preparation for meeting revised environment norms as per environment (Protection) Amendment Rules, 2015

12.1 Revised water consumption and emission norms for existing as well as new thermal units (installed from 01.01.2017 onwards) as per Environment (Protection) Amendment Rules, 2015 had been notified by Ministry of Environment, Forest & Climate Change (MOEF & CC) (Gazette Notification dated 07.12.2015). MOEF guidelines had classified thermal generators into three categories with different norms. The three classes were prior to 31st December 2003, 1st Jan 2004 to 31st December 2016 and beyond 1st January 2017. Existing as well as new plants were required to meet standards by the stipulated time lines. Preparedness and action plan in order to comply with revised norms had been discussed in SRPC as well as Subcommittee Meetings.

12.2 The following had been noted in earlier Meetings: The requirements for necessary compliance.

Units need to necessarily comply with norms, as per CPCB timelines and changes thereof.

This is a monitored activity by Hon’ble Supreme Court and also by Government. Hence regular updates needed to be communicated.

12.3 As decided in the 36th SRPC meeting, Chairperson, SRPC vide letter dated 13.09.2019 (Annexure-X) addressed to Secretary (Power) had taken up for financial support from Clean Energy Cess or any other grant, funding (soft loan), subsidy etc for complying to new environmental norms.

12.4 As per directives of CEA/MoP, a meeting was convened on 09.12.2019 to recommend the FGD schedule dates for the units under construction / commissioned after 31.8.2017 and the dates were recommended to CEA (vide letter dated 27.12.2019).

Members may deliberate.

13. Status of DC/generation in ISGS13.1 Issue regarding low DC/Generation at ISGS had been deliberated in earlier Meetings of

SRPC. In the earlier meeting, the following was noted:


Regarding TPS-II Expansion, NLCIL had informed that there were some design issues which were being addressed. Both the units would be in operation at full load by December 2019/January 2020.

NPCIL had informed that MAPS Unit-II is expected back by November, 2019. In respect of KKNPP, TCC had concluded that Unit-II would be out from November

2019 to February 2020 for refuelling and stator conductor rectification. While Unit –I is likely to go out for refuelling in March 2020 as per present level of generation and last refuelling. Any slight delay in bringing back Unit-II would lead to both the units non availability in peak demand months. At least one unit at full load should be available at KKNPP during February- April, 2020. Part loading of Unit-I could be envisaged to ensure full availability during peak demand period.

CMD, TNEBL had informed that they had taken up the issue in respect of nuclear units with NPCIL, in various forums and at state level coordination committee also but no concrete solution is forthcoming. NPCIL to programme the unit shutdown in such a manner that during the peak demand at least one unit at KKNPP would be available on bar with full generation.

13.2 As agreed in the 36th SRPC meeting, Chairperson, SRPC vide letter dated 30.07.2019 (Annexure-XI) addressed letter to CMD, NPCIL had brought out the concern’s of the beneficiaries of NPCIL and to ensure availability of at least one unit at KKNPP during the peak demand months of February to April 2020.

13.3 Level of DC / generation of some ISG Stations during the months of July to November 2019 are as given below:

Station July-19 Aug-19 Sept-19 Oct-19 Nov -19

Talcher Stage IIDC % 70.14 46.77 47.15 68.02 82.23PLF % # 67.59 46.19 46.65 60.01 75.02

NLC TS II Exp.DC % 30.65 28.55 40.29 59.66 35.78PLF % # 29.92 27.83 37.64 52.75 33.19

MAPSPLF% # 51.01 51.01 51.11 48.09 48.80

PAF % # 50.00 50.00 50.00 50.00 50.00

KKNPPPLF % # 80.03 80.22 80.80 73.14 80.40PAF % # 100 100 100 91.38 100

NTPLDC % 56.65 99.61 87.57 73.15 75.59PLF % # 38.9 69.54 51.41 41.43 54.45

# (on Actual)

The issue may please be deliberated.

14. TTC/ATC

14.1 TTC/ATC enhancement – Operational Guidelines issued by NRCE

Dynamic line rating was to be implemented within one month as per the order dated 05.08.2015 of Hon’ble CERC in Petition No.009/SM/2015 (CAC Sub Committee on Congestion in Transmission).


In the 35th meeting, TCC had suggested that POSOCO may look into dynamic line loading aspects to optimize usage of existing corridors. The issue may also be taken up with CEA.

The terminal equipment ratings furnished by SR entities had been forwarded to POSOCO/NRCE.

As agreed in the 36th SRPC meeting, Chairperson, SRPC vide letter dated 13.09.2019 (Annexure-XII) addressed to Chairperson, CEA look in to the matter of consideration of dynamic loading in respect of TTC/ATC computation and for implementation of operational guidelines for inter regional corridor for import to SR on seasonal basis.

CTU/NLDC/CEA may appraise the status.

14.2 Releasing additional margins for STOA / PX based on LTA / MTOA utilization

The following had been noted in the 35th / 36th Meetings of SRPC:

Clause 16 (B) of CERC Connectivity Regulations (Sixth Amendment) as given below was noted:

In case it is observed by RLDCs that the LTA or MTOA customer’s request for scheduling is consistently (for more than 5 days) lower than the quantum of LTA or MTOA granted by the Nodal Agency (i.e.; CTU), RLDC may issue a notice to such LTA or MTOA customer asking the reasons for such under-utilization. The LTA or MTOA customer shall furnish the reasons for such under-utilization and will provide such details like the reduced requirement, likely period, etc. by the following day. The un-utilized transfer capability will then be released for scheduling of Medium term and Short-term open access transaction depending upon the period of such underutilization with a condition that such transaction shall be curtailed in the event original LTA or MTOA customer seeks to utilize its capacity:

Risk of releasing the margins were mitigated for the system operator since these transactions shall be curtailed in the event of original LTA or MTOA customer seeking to utilize its capacity.

NLDC had been suggested to look into the aspect and further optimize the margins wherever feasible.

POSOCO/NLDC may update the status.

15. Operation issues in respect of NPCIL Generating Stations in SR

15.1 Part load operation/Reserve shutdown/frequent changes in revival of NPCIL units

Issue regarding flexibility from nuclear stations was taken up by Chairperson, SRPC with Secretary (Power), MoP vide letter dated 14th December 2018.

CEA vide Order dated 29.01.2019 had constituted a Committee for ‘Optimum


Utilization of Nuclear Power Stations in view of High RE Sources penetration in Indian Electricity Grid’ under Chairmanship of Member (GO&D), CEA. The following had been noted in the 1st meeting held on 19.02.2019:

‘After deliberations, NPCIL was requested to consider the proposal of varying the generation level on seasonal basis based on requirement of beneficiaries. NPCIL may also intimate the constraints and limitation to be kept in view by the beneficiaries while deciding on level of generation. JS, DAE and Director (O) and NPCIL agreed to revert back on this issue.”

It was also decided that officer of TANGEDCO could be co-opted as a member to the Committee.

TNSLDC vide message dated 14.08.2019 and 21.08.2019 had requested KKNPP to reduce the generation to the extent possible to keep their LGB due to heavy rains demand in TN was reduced drastically. Director (Operation), TANTRANSCO vide letter dated 31.08.2019 (Annexure-XIII) addressed to Director (Operation), NPCIL has requested to look into the aspects of part load operation and flexibility in generation. SRPC vide letter dated 06.09.2019 (Annexure-XIV) had forwarded TANTRANSCO letter to CE (GM&NPC), CEA to look into the issues raised by TANTRANSCO. In the 159th OCCM, KKNPP had stated that part load operation was not possible due to reactor side constraints and the PPA clauses.

The issue may please be deliberated.

15.2 Shutdown of NPCIL units

TANTRANSCO vide E-mail dated 08.11.2019 had suggested the following part load operation of KKNPP units:

Unit 1 Period Total Days MU / Day Total MU1000 MW 20/11/19 to 20/03/20 120 24 2880

Part Load Operation

Unit 1 Period Total Days MU / Day Total MU667 MW 20/11/19 to 20/05/20 180 16 2880

All constituent states had recommended the suggestion of TANTRANSCO of part loading of KKNPP unit-I from November itself.

In the 162nd OCCM (10.12.2019) KKNPP had informed that unit-II would be taken out from 15.12.2019 to 17.03.2020 and unit-I would be taken out from 1st week of April (for 75 days). The revival of unit-II was being monitored and accordingly KKNPP unit-I generation has been restricted to 900 MW based on the request of the beneficiary (ies). The compensation issues due to part load operation would be taken up later.

Simultaneous outage of NPCIL units (SR) during peak months for the year 2020-21

Chairperson, SRPC vide dated 21.12.2019 (Annexure-XV) had taken up with CMD, NPCIL the issue of simultaneous outage of NPCIL units of SR during peak months for the year 2020-21 and requested to issue suitable directions for review of the


BSD/Refueling Shutdown of NPCIL Units of Southern Region and to schedule the shutdowns during the non-peak period of June to December.

15.3 Commissioning of Reactors at Kaiga (2 x 125 MVAR)

In the earlier Meetings, NPCIL / Kaiga GS had affirmed that one 125 MVAR reactor would come up by December 2019 while action had been initiated for other 125 MVAR reactor.

It had been noted with concern that due to limitations, the generators at Kaiga 3 & 4 were injecting to the grid instead of absorbing as per capability curves. Further, the Standing Committee approved reactors were getting delayed which was a matter of concern. In case of delay, Kaiga GS could approach PGCIL to utilize the regional spare reactors.

NPCIL had informed that bids would be opened on 22.07.2019. Order for both reactors will be placed shortly.

KPTCL had stated that the NPCIL need to hasten the process to have the reactors in place. Number of elements of KPTCL & KPCL was being stressed due to tardy action by NPCIL.

Chairperson, SRPC vide letter dated 30.07.2019 (Annexure-XVI) addressed CMD, NPCIL to expedite the commissioning 2 x 125 MVAR reactors at Kaiga GS.

In the 161st OCC meeting (08.11.2019), KGS had informed that Technical Bid evaluation had been completed. Some queries have been replied. Commissioning may not be possible by March 2020 as committed.

The issue was discussed in special meeting convened by CEA on 22.11.2019 wherein, the following was noted:

In the meeting NPCIL representative informed that tender had been floated for the work. Bids have been received and are under evaluation. The work is likely to be awarded by March, 2020. NPCIL was requested to expedite the work of installation of bus reactors at Kaiga.

NPCIL may update the status.15.4 Other issues (NPCIL)

i. In the 162nd OCC meeting (10.12.2019), KKNPP had informed that 2nd Shunt reactor would be coming by May 2020 (Management Approval obtained in August 2018) since the delivery of the bushings from Russia was delayed. The issue was discussed in the special meeting convened by CEA on 22.11.2019 wherein the following was noted in the MoM:

In the absence of sufficient bus reactors and Kudankulam Nuclear Power Plant and also due to proposed shut down of one generating unit at Kudankulam from 2nd

week of December, 2019, the outgoing 400 kV lines would be lightly loaded and may result in high MVAr injection into the grid. NPCIL informed that each generating unit at Kudankulam can absorb upto 150 MVAr. Therefore, it was proposed that SRPC/SRLDC would carry out necessary simulation for the period of operation of only one unit operational at Kudankulam and accordingly,


Kudankulam Nuclear Power Plant may have to absorb more MVAr. To limit MVAR injection from lightly loaded lines during the period of maintenance of one unit at Kudankulam, SRPC/SRLDC may also consider opening 1-2 outgoing circuits, after considering reliability aspects, and in consultation with NPCIL and other Stakeholders.

ii. MAPS had raised concern over frequent outages of evacuation lines during January to September 2019 (discussed in 160th OCCM – 15.10.2019). TANTRANSCO had been requested to confirm whether all the insulators were replaced with polymer, provide bird guard on suspension towers, periodic thermo-vision inspection and carryout periodical monitoring & preventive maintenance.

iii. Frequent tripping & long outage of Kaiga connected lines affecting the reliability evacuation of Kaiga generation was discussed in 161st OCCM (08.11.2019). KPTCL was requested to complete the pending insulator replacement works on Sirsi-Guttur portion of Kaiga- Guttur lines and to increase the monitoring / patrolling of lines and take care of ROW issues.

iv. Kaiga had taken shutdown of Kaiga-Narendra line CB- 4B bay without intimation/knowledge of SRLDC when both the lines of Kaiga-Guttur 1 & 2 and Guttur Bus -2 also under shut down which was viewed seriously by SRLDC/OCC.

v. In regard to reported Cyber security breach (Sep, 2019), KKNPP had informed that the main plant system is totally isolated and few office computers were only affected. The report on the incidence has been submitted to the competent authorities. The cyber security guidelines/procedure of NPCIL generating stations were also being reviewed and updated guidelines/procedure would be implemented.

vi. Despite the earlier commitment by NPCIL that shutdowns would be planned during June to December each year, Biennial Shut Down (BSD) of KGS-4 is planned from 19.01.2019 tentatively for carrying out mandatory Surveillance Tests in service Inspection of Systems, Structures and Components to fulfill the Regulatory requirements. The BSD duration will be around 30 days. Insulator replacement of Sirsi-Guttur section (KPTCL ownership) of Kaiga-Sirsi line KPTCL had informed that they have replaced 20 numbers of tension strings. Further replacement of 15 numbers and 22 numbers of insulator strings was planned, for Line I estimated cost is around 1.13 Crores and for line II it is 2.08 Crores.

vii. SEM related issues : PGCIL (SR-II) had informed that SEM would be supplied to KGS. SR-II was requested to consider the complete requirement of KGS as even the 220 kV interface points were ISTS points. SR II had informed that estimate (cost plus) had been furnished to KGS. KGS had informed that the matter was under consideration. KGS was requested to facilitate the installation of the same.

The issues may please be deliberated.

16. Upcoming Transmission System

16.1 Solar & Wind Energy Zone Transmission schemes (18.5 GW)


Potential Solar Energy Zones (SEZ) and Wind Energy Zones (WEZ) in various districts of six RE rich states were identified by SECI/MNRE for 66.5 GW quantum. Subsequently, based on bidding timeline, SECI provided phasing details of prioritized SEZs (50,000 MW) and WEZs (16,500 MW) in two phases i.e. 2020 & 2021. The details of prioritized SEZs and WEZs in Southern region (totaling to 18,500 MW) are as under:

State/DistrictSolar Wind Total

(GW)Phase-1 Phase-2 Phase-1 Phase-22020 2021 2020 2021

Andhra PradeshKurnool 2.5 2 1 5.5Ananthapuram 2.5 2.5KarnatakaKoppal 2.5 2.5Gadag 2.5 2.5Bidar 2.5 2.5Tamil NaduKarur 1.5 1 2.5Tirunelveli 0.5 0.5Total 2.5 7.5 6 2.5 18.5

PGCIL Petition No. 200/MP/2019 for grant of Regulatory Approval for execution of the Transmission system for 18.5 GW of Solar and Wind Energy Zones in Southern Region was heard on 15.10.2019. The Commission had directed the CTU/SECI to furnish the following information, on affidavit, on or before, 25.10.2019: (a) Status of Renewable Energy Project w.r.t land and bidding; and (b) Minutes of 36th SRPC meeting. The Commission also directed the Petitioner to furnish reply/information as pointed out by TANGEDCO in Para 3 above, on affidavit, on or before, 25.10.2019. The Petition was heard by Hon’ble Commission on 15.10.2019 (RoP at Annexure-XVII).

The Commission had directed CTU / SECI to furnish the following information on affidavit, on or before 25.10.2019:

a) Status of Renewable Energy Project w.r.t land and bidding; and b) Minutes of the 36th SRPC meeting.

Further, TANGEDCO had been directed to furnish specific queries by 21.10.2019.

The petition was heard on 25.11.2019 wherein it was noted that the Petition shall be listed for hearing in due course for which separate notice will be issued.

16.2 Southern Regional Power Committee (Transmission Planning) [SRPC(TP)]

MoP vide Order dated 4th November 2019 (Annexure-XVIII) has constituted SRPC(TP) by revising Southern Regional Standing Committee on Transmission (SRSCT) in the light of fact that the present transmission system is in the nature of One Nation-One Grid and the whole system has to transport power seamlessly from one corner of the country in the form of single market. MoP vides Order dated 04.11.2019 (Annexure-XIX) had amended the constitution and ToR of the National Committee of


Transmission (NCT) notified vide Order dated 13.04.2018.

A Joint Study meeting was held on 21st & 22nd November 2019 at New Delhi to discuss the follow up issues of 2nd SRSCT meeting and new proposals received from constituents. MoM issued on 10.12.2019.

The 1st meeting of SRPC(TP) was held on 16.12.2019 at Hyderabad.

1 st Meeting of SRPC(TP)

In the Joint study meeting held on 21-22 November, 2019, POSOCO representative and SR constituents requested for some more time to forward their comments/observations on the all-India load-generation scenario for RE integration.

CTU informed that they were open to carry out number of scenarios / studies on All-India basis as per the suggestions / observations of the constituents. However, it was requested that views/suggestions may be forwarded within a week time, so that the analysis and studies can be carried out for discussions in the forthcoming SRPC(TP) meeting.

After detailed deliberation, it was decided that observations/comments on the circulated LGB & All-India PSSE file may be submitted within one week for further analysis and evaluation of transmission scheme for discussions in the next SRPC(TP) meeting.

16.3 Upcoming inter-regional transmission schemes

(a) WR-SR 6000 MW HVDC Bipole Link [Raigarh (Chhatisgarh)-Pugalur (TN)-Trissur (KER)]

The following had been noted in the 36th SRPC meeting.

PGCIL had informed that the HVDC line from Raigarh to Pugalur (about 1760 kms), 540 kms in WR (Chattisgarh area & a bit in Maharashtra), around 860 kms in SR one portion comprising Telangana & Andhra Pradesh and about 360 kms in Tamil Nadu portion. As far as the present progress concerned, one of the packages is already completed and by September/October 2019 both WR-I and SR-I would be in a position to complete the line in their portion. The issues of concern were in the packages adjoining in the four districts of Namakkal, Erode, Tirrupur and Coimbatore in Tamil Nadu. For the last 10 months, no works had been allowed to be carried out. This project is being monitored under ‘PRAGATI’. Addressing of RoW issues was a cause of major concern. TN administration support was also sought. PGCIL had informed that the works had resumed in Tamil Nadu with the active support of State Government and the revenue authorities.

TANGEDCO had proposed that in line with the Hon’ble Commission’s directions in Biswanath – Chariali - Agra HVDC transmission system, the Raigarh – Pugalur - Thrissur HVDC corridor should be considered as strategic and national importance considering the huge surplus RE potential planned to be transmitted from Southern Region to rest of the country. Further, CTU was also of the view that the transmission charges for all HVDC links in the country


except for specific generation evacuation scheme may be shared on all India basis. The same was endorsed by TCC.

Raigarh-Pugalur: Pole 1- QIII 2019 & Pole 2- April 2020

As agreed in the 36th SRPC meeting, Chairperson, SRPC vide letter dated 30.07.2019 (Annexure-XX) had taken up with Secretary (Power), MoP for declaring WR-SR 6000 MW HVDC Bipole Link Raigarh (Chhatisgarh)-Pugalur (TN) as a project of National importance as it is likely to be used in both the directions.

Updates:Raigarh-PugalurCEA (Oct 2019) Nov 2019 (for HVDC stations)PGCIL (Oct 19): Feb 2020 Line and HVDC stationPugalur – Thrissur (2000 MW): Pole 1- December 2019 & Pole 2- May 2020CEA (Oct 2019): Apr 2020 (for line); Nov 2019 (for HVDC stations)

(b) Additional inter-Regional AC link for import to Southern Region, i.e., Warora - Warangal - Hyderabad- Kurnool 765 kV link

TBCB, PFCCL- BPCTransmission Licensee : Warora-Kurnool Transmission Limited (WKTL)

The following had been noted in the 36th SRPC meeting: The elements of the transmission system are being executed by M/s WKTL under

TBCB route. Due to various internal and external reasons, M/s WKTL has stalled the execution of various elements of the project. The details are furnished below:

Sl No Name of the transmission element SCOD Present status

1 Establishment of 765/400 kV substations at Warangal (New) with 2x1500 MVA transformers and 2x240 MVAR bus reactors.

05.11.2019 Work stalled. Less than 40% progress

2Warora Pool – Warangal (New) 765 kV D/c line with 240 MVAR switchable line reactor at both ends of each circuit.

05.11.2019 50% tower erected. Stringing 8.8%

3Warangal(New) – Hyderabad 765 kV D/C line with 240 MVAR switchable line reactor at Warangal end of each circuit.

05.11.2019 70% tower erected. Stringing 0%

4 Warangal (New) – Warangal (existing) 400 kV (Quad) D/C line.


5 Hyderabad –Kurnool 765 kV D/C line with 240 MVAR switchable line reactor at Kurnool end of each circuit


6 Warangal (New) - Chilkaluripeta 765 kV D/c line with 240 MVAR switchable line reactors at both ends of each circuit


7 240 MVAR switchable line reactors with bays at Warora(Pool) end in each circuit of Warora(Pool)- Rajnandgaon 765 Kv D/C line with NGR(700ohms)

30.11.2018 Ready for commissioning

M/s WKTL had stopped the execution of Warora- Warangal 765 kV line work based on the objections of Western Coalfields Limited (WCL) and Singareni Collieries Company Limited (SCCL) due to crossing of the Warora –Warangal line in the proposed coal fields of these coal companies. M/s WKTL vide their letter dated


3.12.2018 requested CEA to take up the issue with the concerned agencies to allow them to proceed with the approved route.

The Committee agreed that Chairperson, SRPC would take up with MoP for taking up with MoC to allow the Warora-Warangal line on the original route, advice WKTL to start work on other lines and for expediting the complete project which would enable enhanced TTC to SR. Request of TSTRANSCO to be included in Committee in CEA could also be conveyed.

Accordingly, Chairperson, SRPC vide letter dated 19.07.2019 (Annexure-XXI) had taken up the issues with Secretary (Power), MoP.

PGCIL vide letter dated 09.10.2019 had informed that the bay extension works under the scope of PGCIL are in advance stage of completion and expected to be ready for commissioning by 19.11.2019 as envisaged in the Original schedule. M/s Warora Kurnool Transmission Limited is hereby given Notice under first Proviso of Clause 2, Regulation 5 of CERC (Terms and Conditions of Tariff) Regulations 2019 for commissioning of associated lines of M/s Warora-Kurnool Transmission Limited matching with bay extension works of PGCIL.

Updates: CEA (Oct 2019): December 2019

1st Meeting of committee was held on 19.07.2019. Site visits were conducted by the WKTL, WCL, CMPDI, CEA & SCCL teams to explore other options available. 2 nd

meeting of the committee was held on 19.08.2019. Subsequently a meeting was taken by Addl. Secretary, MoP on 19.08.2019. MoM from MoP is awaited to take up the matter further.

PGCIL (May 2019): Bay works at Hyderabad (Maheshwaram), Kurnool and Warangal expected by November 2019.

Report of committee constituted by Ministry of power to examine the issue regarding execution of Warora-Warangal 765 kV D/C transmission line being implemented by M/s Warora Kurnool transmission limited has been submitted to MoP.

(c) System strengthening within SR for transmitting power beyond Vemagiri

TBCB- RECTPCL-BPCProject has been awarded to PGCIL under TBCB

The following was noted in the 36th SRPC meeting:

PGCIL had requested active support from AP Government for completion of section of the line. This ISTS line would enhance the transmission capacity of the entire corridor. It is a high power corridor; line from Orissa has already come up to Vemagiri and presently drawing about 1500 to 2000 MW power. It has got four components, Srikakulam to Garividi has been energized, Kadapa to Madugiri also energized, Narasaraopet to Chilkaluripeta and up to Kadapa despite the wild life issue also completed. In Vemagiri – Chilkaluripeta of line length of 290 km just about 40km line length in Krishna district has been affected for almost 1½ to 2 years. The issues were of high compensation. Completing the


line by paying high compensation would have ramification not only on POWERGRID; within the region but all other utilities would also get affected. This issue has been discussed. Once this link is completed additional 1000 to 1500 MW could be injected in to SR grid.

JMD, APTRANSCO had informed that they are thoroughly sensitized and the issues would be sorted out for expeditious completion of the line.

Updates:PGCIL (Oct 19): November 2019; CEA (Oct 2019) : October 2020765 kV Vemagiri – Chilkaluripeta: The project is under review by PRAGATI of Prime Minister’s office(PMO) and meeting is expected shortly.Foundation works started in a few locations in Aug’19. Further the obstruction continued for stringing to enhance compensation for tree/ crop wrt. the damages. During the meeting on 25.09.2019 by district administration and MLA with the farmers, the issues have been deliberated and orders have been issued. Stringing works are now under progress.

(d) Updated detailed status of upcoming inter regional Transmission scheme is furnished at Annexure-XXII.

16.4 Pending transmission elements in WR and SR for proper utilization of 765 kV Raichur- Sholapur line (Out of planned 18 elements)

Updated status of pending transmission elements in WR and SR for proper utilization of 765 kV Raichur - Sholapur lines (out of planned 18 elements) is furnished below:Sl. No Name of Transmission Element

1 400 kV Tumkur-Yelahanka D/C line ; PGCIL (154 Ckm)36th SRPC: September 2019.CEA (Oct 2019): Oct 2019; Severe ROW in Karnataka. Issues are being resolved with State District Administration.PGCIL (Oct 19): Nov 19

2 220 kV Tumkur (400 kV) S/S – 220 kV Tumkur S/S D/C; KPTCL; LOA placed on 18.03.15 with 18 months completion schedule.36th SRPC: August 2019.

Stub concreted: 209/209 nos, Tower erected: 209/209 nos, Stringing: 88.62/88.962 Ckms

16.5 Status of important associated transmission evacuation systems

Updated status of associated links is furnished below:

Transmission Elements1 Transmission evacuation system for HNPCL (1,040 MW) Power Plant

APTRANSCO ; 400 kV TM D/C Kamavarapukota – Vemagiri; 185 ckm36th SRPC: March 2020 (29.837/92.471 km completed)

2 Transmission System required for evacuation of power from Kudgi TPS (3x800 MW in Phase-I) of NTPC LimitedKPTCL: 220 kV D/C line to Vajramatti: 36th SRPC: Stub concreted: 261/267


nos, Tower erected: 253/267nos, Stringing: 78.8/158.84 Ckms.: November 2019

3 Transmission system of KPTCL for evacuation of power from Yermarus TPS (2 x 800 MW)

KPTCL: Gulbarga 400/220 kV substation- 2 x 500 MVA, 36th SRPC: DPR approved on 09.03.2018 (to be tendered).

Yermarus TPS - Gulbarga 400 kV D/C line (QM), 35th TCC: DPR approved on 09.03.2018 (to be tendered)

400 kV SS at Chikkanayakanahalli – 2 x 500 MVA (39 th SC), 36th SRPC: Land identified acquisition of land under progress.

LILO of Nelamangala – Talaguppa 400 kV D/C at CN Halli, 36th SRPC: Land identified acquisition of land under progress.

Termination of 400 kV D/C of Hassan from Nelamangala – Talaguppa at CN Halli 400 kV, Bellary PS - C.N.Hally 400 kV D/C line QM : 36th SRPC: (a) line commissioned (b)400 kV line from Rampura limit to Jagalur : Line work completed.(c) 400 kV line from Jagalur to Chikkanayakanahalli : To be tendered.

400 kV BTPS-Guttur D/C (QM), 36th SRPC: Estimate under preparation.De-link 400 kV S/C RTPS-BTPS-JSW-Guttur with JSW BusThe matter was discussed in a meeting held on 22.11.2019 chaired by Chairperson/Member (PS), CEA, with representatives from KPTCL, SRLDC, JSW, CEA and CTU. In the meeting, it was agreed by all that KPTCL may open the LILO subject to following conditions:i. The LILO may be opened only after 1st June, 2020, i.e. after the annual peak

demand period of Southern Region.ii. KPTCL shall ensure that there would not be any constraints / congestion in the

STU grid and conditions stipulated in the manual on transmission planning criteria are met, while giving NoC for injection of power (quantum in MW) to M/s JSW.

iii. KPTCL should expedite the works of upgradation of BTPS - Guttur 400 kV S/C line to 400 kV Quad D/C line. This was agreed in the 39 th meeting of Standing Committee on Power System Planning of Southern Region held on 28-29 December, 2015. However, the work has been delayed and KPTCL must expedite the same. Further, KPTCL shall issue NoC for injection of power to JSW only after completion of upgradation works of BTPS - Guttur 400 kV line.

iv. The issue of NoC to the declared IPPs or CPP of JSW, as the case may be, would be in accordance with KERC regulations/orders.

4 400 kV Mangalore (UPCL) -Kasargode-Kozhikode: NCT in its 1st meeting had approved the scheme through TBCB.CEA (Oct 2019): Scheduled DOC 12.11.2022 (38 months from Effective Date)RECTPPL vide letter dated 31.07.2019 had informed that offer received by way


of the Bid had been accepted and M/s Sterlite Grid Limited is declared as the Successful bidder as per Final RFP for the project and the LoI (Letter of Intent) had been issued and had requested to unconditionally accept the LoI.Udupi Kasargode Transmission Limited (UKTL) Petition No 336/AT/2019 (for adoption of transmission charges) was heard on 19.11.2019 and the Commission had reserved the Order.Hon’ble CERC had issued Order dated 27.12.2019 on Petition No 335/TL/2019 on ‘grant of transmission licence to Udupi Kasargode Transmission Limited (UKTL).

5 400 kV Edamon-Kochi; 298 ckm; PGCILTiruneveli-Muvattapuzha (Kochi) : Circuit-I COD wef 27.09.2019

Circuit-II COD wef 20.12.20196 400 kV Hiriyur – Mysore line; 412 CkM; PGCIL

NLDC Operation Feedback (Jan-March 2019): Will relieve 400 kV Hiriyur –Nelamangala D/C line.36th SRPC: September 2019.162nd OCC: March 2020 (expediting to Jan 2020)PGCIL (Oct 19): Jan 2020; ROW problem affecting the progress specially in Mysuru area.

7 400 kV Pavagada – Devanahalli D/C line; (139.30 D/C and 13.20 M/C); PGCIL36th SRPC: March 2020 ; progress affected due to ROWCEA (Oct 2019): Dec 2019, Progress being affected due to ROW. S/D tie up for M/C portion (using corridor of N'mangla-Hoody KPTCL line) being done.Long duration outage requirement on 400 kV Nelamangala –Hoody &Yelahanka –Hoody line

PGCIL: As agreed in the 40th Standing committee proceedings, 13 km of 400 kV Pavagada - Devanahalli (Quad) TL at Devanahalli SS end is being constructed utilizing the existing KPTCL corridor of 400 kV Nelamangala - Hoody & Yelahanka - Hoody TL (in common D/C TL) by replacing the existing D/C (Twin Moose) towers with M/c (Twin-Quad Moose) towers. 41 nos. of existing D/c towers are to be replaced with 41 nos. of M/c towers in proposed alignment.

For the above, long duration (06 Months) outage of 400 kV Nelamangala –Hoody & 400 kV Yelahanka –Hoody 400 kV line shall be required.

The following had been noted in the 36th meeting of SRPC:

PGCIL SR-II had stated that they would approach KPTCL for settling the ROW usage issues. Further if 6 months shutdown is not possible then works could be taken up by using ERS towers in small sections.

KPTCL had informed that after the commissioning of Hiriyur-Mysore by PGCIL, the line loadings on Hiriyur-Nelamangala would be assessed and if possible shutdown for 6 months would be considered.

It was noted that Kolar-Somanahalli shutdown for Mylasandra & Dommasandra should not be overlapped with this shutdown of Nelamangala - Hoody & Yelahanka – Hoody lines.

8 2x500 MVA SS at Devanahalli Hardware Park - KPTCL


CEA (Oct 2019) : Sept 2019; OCC: Jan 2020Transformer erection completed. 125 MVAR bus reactor erection completed and oil filtration under progress.

9 LILO of Somanahalli - Kolar S/C line to Mylasandra (New Electronic City)CEA (Oct 2019) : Dec 2019Check survey approved on 23.07.19. The design documents of 400 kV towers has been approved. Foundation drawings submitted on to CEE, P&C by agency.

10 3 x 500 MVA SS at Mylasandra - KPTCLCEA (Oct 2019) : Nov 2019Transformer & Reactor foundation excavation for mounting structures works under progress

11 400 kV Madakkathara (Trichur) – Areakode (Kozhikode) - KasaragodeKSEBL had informed that line consist two stretches, 400 kV Madakkathara – Malaparamba and Malaparamba – Areakode. The works are to be carried out in the existing 220 kV circuits.36th SRPC: The 1st stretch works completed. 2nd stretch scheduled to be completed by March 2020.

12 Telangana STPP - I (2 x 800 MW) Power Evacuation Scheme

400 kV NTPC Common Point - Sircilla (Schedule I) QM DC Line (91 kms):

36th SRPC: 221/223 Nos. Tower Foundations, 221/223 Tower Erection and Stringing 74.2587/77.568 completed. 400 kV Sircilla NTPC Common Point - Narsapur (Schedule II) QM D/C (80

kms): 36th SRPC: Tower Foundations: 269/269 completed, 269/269 Tower Erection and Stringing 95.898/95.898 completed ; CEA Oct 2019 : Oct 2019

400 kV Gajwel - Ramadugu Ckt 1: 400 kV Telangana STPP (NTPC) - Ramadugu QM DC Line: 36th SRPC:

Tower Foundations: 159/161, 135/161 Tower Erection and Stringing 20.63/52.265 completed.Programmed for charging in August 2019 ; CEA Oct 2019 : Oct 2019

OCC: Stringing 36.649/52.265 completed; Nov 2019Ramadugu SS (2x500MVA): 400 kV Bus charges on 12.06.2019, 1 No. 500 MVA PTR programmed for charging in August 2019.

16.6Associated Transmission Evacuation Schemes in Tamil Nadu

Updated status of the following stations, evacuation schemes finalized in the 37 th

SCPSPSR, which were modified in the subsequent Standing Committee Meetings, is given below:

Generating Station Likely COD Evacuation Status

Ennore TPS Expansion – 1 x 660 MW 36h SRPC:2022-2023

Ennore SEZ (NCTPS Stage-IV) –2x 660 MW

36th SRPC:2020-2021

NCTPS Stage III – 1 x 800 MW 36th SRPC: *


2019-2020*1st SRSCT: Contingency measure:i) LILO of Manali – Alamathy 400 kV line at North Chennai 765/400 kV Pooling

Station.ii) This LILO arrangement would be made by utilizing a portion of 765 kV North

Chennai PS – Ariyalur D/C lineEnnore TPS Replacement -1 x 660 MW

36th SRPC:2022-2023

SEPC (1 x 525) 36th SRPC:2019-2020

41st SCPSPSR: Require start up power for its Auxiliaries by April 2018.

SEPC-Thennampatty 400/230/110 kV 36th SRPC:2019-2020

SEPC- Ottapidaram 400 kV (Regular evacuation)

765/400 kV, 2 x 1500 MVA Ariyalur SS

36th SRPC:2019-2020

Work awarded to M/s BHEL on 31.03.2017.CEA (Oct 19): Mar 2020 Work under progress

765/400 kV, 3 x 1500 MVA North Chennai PS (GIS)

36th SRPC:20.03.2020

CEA (Oct 19): Mar 2020 Work under progress

765/400 kV, 2 x 1500 MVA Coimbatore SS

36th SRPC:2021-2022

CEA (Oct 19): Mar 2021

765 kV Ariyalur – Thiruvalam (PG) 36th SRPC:31.07.2019OCC: 31.03.2020

Awarded to M/s Transrail and the work under progress

765 kV North Chennai PS - Ariyalur 36th SRPC:21.09.2019OCC: 31.12.2019

Work under progress.

765 kV NCTPS III- North Chennai PS 36th SRPC:30.11.2019

400 kV Ennore SEZ-North Chennai PS

36th SRPC:31.12.2019CEA (Oct 2019): March 2020

Awarded to M/s Transrail on 13.08.18 and works under progress

400 kV Ennore SEZ- Ennore to ETPS Expn

CEA (Oct 2019):April 2020

Awarded to M/s Transrail on 13.08.18 and work under progress.

400 kV ETPS Expn – North Chennai PS

CEA (Oct 2019): March 2019

Awarded to M/s Transrail on 13.08.18.

Interconnection from common point of SEZ – ETPS Expn to NCTPS Stage-II and LILO of NCTPS-II – SV Chatram 400 kV MC between location No.21 & 22


16.7Status of Implementation of downstream network by State utilities associated with ISTS substations of POWERGRID

Sl.No

Name ofSubstation

MVACapacity

220kVBays

ExpectedSchedule ofSubstation

Remarks

1 Tumkur(Vasantnarsapur)

2 x 500 6 Commissioned Construction of downstreamT/L for 6 Nos 220 kV bays to be expedited by KPTCL.

220 kV Tumkur - Antharasanahalli D/C line commissioned.2nd SRSCT: 2 nos of 220 kV lines from 400 kV Tumkur is planned to be connected to KIADB.36th SRPC: Tumkur - Madhugiri D/C line by August 2019 : Stub concreted: 209/209 nos, Tower erected: 209/209 nos, Stringing: 88.62/88.962 Ckms.

2 Yelahanka 2 x 500 10 Commissioned Construction of down streamT/L for 10 Nos (6 bays under ISTS) 220 kV

bays to be expedited by KPTCL. In the meeting with M/s PGCIL and KPTCL held on 1st Jan 2019, CEE,

Transmission zone, Bengaluru was instructed to examine the possibility for new 220 kV connectivity from 400/220 kV Yelahanka s/s and furnish the report to Corporate office.

2nd SRSCT: Proposal for strengthening of Bengaluru transmission network to utilize the remaining bays at Yelahanka is under planning.

PGCIL Petition 361/TT/2018 on the transmission charges in respect of 220 kV line bays at Yelahanka was heard by CERC on 08.08.2019 and the Order was reserved.

3 Bidadi 2 x 500 6 Commissioned Construction of downstreamT/L for 4 Nos 220 kV bays tobe expedited by KPTCL.

36th SRPC: Magadi-Bidadi line: by March 2020. (Stub concreted: 80/127, Tower erected: 70/127, Stringing: 10.8/64.38CKms, Forest clearance required d for 1.724 Hectares)Bidadi-Kumbalgodu Cable: by March 2020 (29/54 section cable laying completed)

4 Hiriyur 2 x 315 6 Commissioned Construction ofT/L for 2 Nos 220 kV bays to be expedited by KPTCL.

36th SRPC:400kV Hiriyur to 220 kV Hiriyur: work to be taken up. Only stringing work to be done in the existing corridor, conductor supplied.Hiriyur to Chitradurga: Stub concreted: 148/149 nos, Tower erected: 103/149 nos, Stringing: 55.58/78.267 Ckms. Work under progress.

5 Hassan 2 x 315 6 Commissioned Construction of downstream T/Lfor 2 Nos 220 kV bays to


be expedited by KPTCL.2nd SRSCT:LOI for the re- tendered work of “ Balance portion of construction of 220 kV DC Drake ACSR line from 400/220 kV PGCIL Shantigrama station to LILO the existing 220 kV B4 line” is issued on 10.06.2019.

36th SRPC: 2 Nos 220 kV downstream T/L i.e. LILO of Hassan(KPTCL) – Nittur S/c Work short was closed. Re awarded on 10th June 2019.

6 Kolar 2 x 500 6 Commissioned Construction of downstreamT/L for 2 Nos 220 kV bays tobe expedited by KPTCL.

2 Nos 220 kV downstream links Kolar-Gollahalli220kV D/C line36th SRPC:Stub concreted: 140/161 nos, Tower erected: 69/161 nos, Stringing: 3.97/54.538 Ckms. Work under progress. Expected by December 2019.

7 Hosur 3 x 315 6 Commissioned Construction of downstreamT/L for 2 Nos 230 kV bays tobe expedited byTANTRANSCO

2 Nos 230 kV downstream T/L Hosur -Shoolagiri2nd SRSCT:1 No 230 kV downstream T/L to Shoolagiri expected by July 2019.

8 Kozhikode 2 × 315 +1 x 500

4 Commissioned Construction of downstream T/Lfor 1 No 220 kV bay tobe expedited by KSEBL

2nd SRSCT: 1 No 220 kV downstream TL at Kozhikode (KSEBL) expected by September 2019.36th SRPC: KSEBL informed that only 3 bays will be used and they were planning to use HTLS due to ROW issues.


16.8 NLDC Operational Feedback

16.8.1NLDC vide letter dated 25.10.2019 (available on NLDC website) had submitted the following as part of Operational Feedback for the quarter July–September 2019, in respect of SR:

Expedite early commissioning of lines:

i. 400 kV Hiriyur-Mysore D/C line – to relieve high loading on 400 kV Hiriyur-Nelamangala D/C line

ii. 400 kV Bellary PS Chikkanayakanahalli D/C line – to relieve high loading on 400 kV Hiriyur-Nelamangala D/C line

a) Transmission Line constraints :

i)400 kV Udumalpet- Palakkad D/C line

OCC meeting: One circuit of 400 kV Edamon-Cochin D/C line commissioned.

ii) 400 kV Hiriyur - Nelamangala D/C line

400 kV Hiriyur – Mysore D/C line and 400 kV Bellary Pooling station –Jagalur - C N Halli D/C would relive the line loading of 400 kV Hiriyur –Nelamangala D/C. The same may be commissioned at the earliest.

iii) 400 kV Gooty - Nelamangala line & 400 kV Gooty - Somanahalli

Commissioning of downstream of 400 kV Tumkur, 400 kV Yelahanka & 400 kV Tumkur – Yelahanka D/C line to be expedited.


iv) Constraints in Nagjheri PH evacuation

34th TCC: Proposal for replacement of Drake conductor by HTLS equivalent Drake conductor for outgoing 220 kV lines from Kali generating complex in Uttara Kannada District is approved and work has to be taken up. Status: Estimate under preparation.

v) Overloaded 230 kV Lines in Tamil Nadu

vi) 220 kV Bengaluru Metro Network

KPTCL had planned to implement number of new 220 kV sub-stations and lines which would provide relief to the existing congestion in the transmission network of Bengaluru:

b) ICT Constraints

i) 400/220 kV 2 x 315MVA ICTs at Gazuwaka SS PGCIL ICT 500 MVA : July 2021 CEA (Oct 19): Kalpakka 500 MVA ICT - Dec 19 Joint Study meeting 21/22.11.2019: It was recommended that 4th ICT at Kalpaka

would be approved subject to the condition that adequate downstream network is ensured by APTRANSCO, matching with augmentation of transformation capacity at 400/220 kV level.

ii) 400/220 kV 2 x 315MVA ICTs at Maradam SS

2nd SRSCT: APTRANSCO had informed that the augmentation of ICT capacity from 2 x 315 MVA to 2 x 315 MV A + 1x 500 MVA ICTs at 400/220 kV Maradam (Garividi) S/S had already been agreed in the 1st SRSCT.

iii) 400/220 kV 3 x 315 MVA ICTs at Nellore SS

2nd SRSCT: APTRANSCO had informed that additional 1x500 MVA ICT (4th ICT) at Nellore S/S (Manubolu) had been planned to resolve the issue. Work is already in progress and the ICT is expected to be commissioned by September 2019.

CEA (Oct 19): Dec 19 Put up for ratification in 1st SRPC (TP) meeting.

iv) 400/220 kV, 3 x 500 MVA ICTs at Somanahalli

v) 400/220 kV 2 x 315 + 1 x 5 00 MVA ICTs at Mysore

2nd SRSCT: KPTCL had informed that commissioning of 400 kV Kadakola S/S and its associated lines will relieve the overloading of 400 kV Mysore S/S.

16.9 Other Line loading / ICT loading issuesi) 400 kV Nellore Pooling Station -Nellore D/C line

2nd SRSCT: Proposed to shift the 125 MVAR and 80 MVAR line reactors at Nellore (PG) on Nellore PS-Nellore (PG) 400 kV D/c line with suitable arrangement on Nellore (PG) – Sriperumbudur 400 kV D/c line (189 km) and bypass Nellore PS – Nellore 400 kV D/c (quad) line and Nellore – Thiruvalam 400 kV D/c (quad) line at Nellore (PG) for making Nellore PS – Thiruvalam 400 kV D/c (quad) line. Estimated cost of shifting of line reactors is about Rs. 10-12 Crore.

ii) 400 kV N.P.Kunta Kolar line


The issue was discussed in the Joint Study meeting held on 21 st & 22nd November 2019 wherein, the following was noted in the MoM:

Accordingly, the system studies were carried out with LILO at NP Kunta, wherein no constraints were observed keeping the import to Southern Region within the limits of ATC. Studies also indicated that with commissioning of Vemagiri- C. Peta 765 kV D/C line, the loading on Kolar –N.P.Kunta – Cuddapah line is further eased. Accordingly, it was decided that transmission strengthening/bypassing of the LILO is not required.

iii) 400/220 kV, 2 x 315 MVA ICTs at UPCL

2nd SRSCT: KPTCL had informed that the proposed 400 kV Arasapadavu sub-station is intended to take loads of 220 kV MSEZ and Kavoor sub-stations, resulting in reduction of load on 2X315MVA, 400/220 kV UPCL transformers.

16.10 Rejuvenation and Parallel operation of 220 kV System on NEW-SR Corridor 16.10.1 NLDC vide letter dated 09.11.2018 had requested that the following lines be brought

into service:

a. 220 KV Chikkodi - Talangade Line b. 220 KV Chikkodi - Mudshingi Linec. 220 KV Upper Sileru - Balimela Line

16.10.2 Subsequently, a VC was held on 03.12.2018 and a study group meeting was also held on 24.12.2018.

16.10.3 The following had been noted in the earlier Meetings of SRPC:

KPTCL had informed that the Report on 220 kV Chikkodi – Talangade/ Mudshingi Lines was under approval of its Management and would be furnished to NLDC shortly.

NLDC had requested KPTCL to expedite the Report enabling them to identify the future course of action.

16.11 Additional loads to be fed from Hosur on Hosur - Yerrandahalli line The following had been noted in the earlier meetings of SRPC:

KPTCL had informed that 400 kV Mylasandra SS is coming up for which link lines have to be established from Somanahalli - Yerrandahalli and Somanahalli -Subramanyapura lines. During the execution period, additional 120-130 MW (from presently 60 MW) of power has been requested from TN on Hosur - Yerrandahalli line for 116 days.

D/C line from PGCIL Hosur to TANTRANSCO Hosur was a constraint.

TANTRANSCO had informed that after commissioning of 230 kV Hosur - Shoolagiri line, additional power flow would be permitted.

A Joint Study would be carried out with participation of SRLDC, SRPC, TANTRANSCO and KPTCL to decide the quantum of power flow which could be allowed from Hosur to Yerrandahalli.

A Meeting of SRLDC, SRPC, TANTRANSCO and KPTCL was held on 04.09.2019.

MD, KPTCL vide letter dated 17.09.2019 had taken up with TANTRANSCO for


necessary facilitation of shutdown.

Subsequently, TANTRANSCO had extended additional power to Yerandahalli (Karnataka) from Hosur from 25.10.2019. KPTCL had assured that they are taking all steps to ensure revival of the system by 10.01.2020 as requested by TANTRANSCO.

16.12 Line loadings of KKNPP-1&2 evacuation lines

In the 160th OCCM, KKNPP has raised issue of loading pattern on Tirnulveli (around 625 MW) and Tuticorin lines (around 105 MW). During shutdowns of one of the Tirnulveli lines, the line loading on other line to Tirnulveli was going beyond 1100 MW. The issue was discussed in the special meeting convened by CEA on 22.11.2019 wherein, the following was noted:

NPCIL stated that so far KKNPP had replaced 4 out of 12 connectors with new aluminum connector in the Kudankulam switchyard. Remaining 8 connectors are to be replaced in a phased manner. Further the planed outage of one unit of Kudankulam NPP is being scheduled in the month of December, 2019, and the same time period shall be utilized for completing the balance works. ……..

With reference to aspect of unbalanced loading of transmission lines, CTU stated that the power flow on the transmission line is dynamic in nature and depends on different load generation scenarios which shall vary from case-to-case basis, depending on prevailing grid conditions.

16.13 220 kV Connectivity

NLDC in its operational feedback for July to Sep 2019 had stated that Hinduja (1040 MW), SEIL-P1 (1320 MW), SEIL-P2 (1320 MW), Krishnapatnam (1600 MW), KTPS VII (700 MW), Bhupalpally (1100 MW), Vallur TPS (1500 MW), ILFS (1200 MW), Coastal Energen (1200 MW) and NCTPS-II (1200 MW) generation is connected at 400 kV Bus and no 230 kV path is available to give start up supply in case of Blackout. So there is a need to provide 230 kV path.

16.14 Proposal for Certification of personnel involved in planning at CTU and STU

Regulation 11 of the CERC (Planning, Coordination and Development of Economic and Efficient Inter-State Transmission System by Central Transmission Utility and other related matters) Regulations, 2018 states:

“CTU and STU shall ensure proper and adequate manpower for conducting transmission planning exercise. CTU, in consultation with STUs shall prepare a scheme for certification of personnel involved in planning at CTU and STU and submit to the Commission for approval.”

In view of the above NLDC had prepared draft proposal for certification of Power System Planners and the same was uploaded on CTU website for suggestions/observations of STUs. In the 161st OCCM (08.11.2019), all the concerned entities were requested to furnish the comments, if any, to CTU.

16.15 Frequent Reduce Voltage Operation of HVDC Talcher-Kolar Bipole

POSOCO vide letter dated 18.12.2019 (Annexure-XXIII) had expressed concern on


frequent operation of HVDC on Reduce Voltage Operation (RVO) of Talcher-Kolar HVDC. This results in congestion of transmission corridor and also loss of important control for real time system operator to handle contingency. POSOCO had requested PGCIL to take appropriate measures to ensure the healthiness of HVDC pole.As per Appendix-II, Procedure for Calculation of Transmission System Availability Factor for a month, computation of TAFMn for HVDC system would be computed considering, ‘total actual operated capacity of HVDC pole’. SRPC vide letters dated 12.06.2019 and 03.01.2020 (Annexure-XXIV) had taken up the issue of furnishing the monthly certification of HVDC system by PGCIL to SRPC Secretariat for further sharing with the SR constituents.

PGCIL may kindly update.

17. New Projects of NTPC, NLC, NPCIL, Joint Venture & UMPP

17.1 Schedule of synchronizing/commissioning of the new projects of NTPC, NLC, NPCIL, and BHAVINI & UMPP is furnished below:

Station UnitInstalled Capacity

MW

Scheduled date of synchronizing / commissioning

Remarks

NTPCTelangana STPP Phase I

2 x 800 36th SRPC:U-I CoD 2020U-2 CoD 2021

*

*MoP vide letter dated 05.02.2019 has allocated 85 % to Telangana and balance 15% will remain earmarked as “unallocated power” and is placed at the disposal of Central Government for meeting urgent/continent requirement of States/UTs from time to time.

Pudimadaka AP

4 x 1000 52 Months from Zero Date

Zero date yet to be finalized.AP had requested NTPC to

firm up the zero date at the earliest.

NTPC had informed that MoP has allocated 50% to home state (AP) and balance allocation has to be made.

NLCILNew Thermal Power Project

I 500 36th SRPC- by Aug 19 COD on 28.12.2019

II 500 36th SRPC - by Dec 19 162nd OCC: Mar 202036th SRPC: PGCIL – August/September 2019 TANTRANSCO had informed that Ariyalur substation would be

ready by March 2020. It was noted that since PGCIL had planned line by September 2019,

the delay in commissioning of substation by TANTRANSCO may lead to payment of the applicable transmission charges in line with CERC Orders on similar cases.

In NNTPP Petition No 167/MP/2019, CERC vide Order dated 17.07.2019 had allowed injection of infirm power into the grid for


commissioning tests including full load test of Units-I & II upto 31.12.2019 or actual date of commercial operation, whichever is earlier.Ariyalur substation (TANTRANSCO) -CEA (Oct 19): Mar 20Line - PGCIL (Oct 19): Dec 19

TPS-II 2nd Expn

1&2

2 x 660 36th SRPC: 2022-23 2nd SRSCT: Evacuation scheme agreed

NPCILKKNPP 3 &

42 x 1000 U3: 2023

U4: 2024

CTU informed that valid connectivity for unit 3&4 is there. But LTA not applied. NPCIL: Schedule under review. LTA would be applied. TANTRANSCO vide letter dated 24.09.2019 (Annexure-XXV) addressed to Member

(PS), CEA had requested to kindly consider TANTRANSCO’s proposal of construction of additional evacuation lines from KKNPP to nearby 400 kV TANTRANSCO SS.

The issue was discussed in a Special meeting held at CEA on 22.11.2019 wherein, the following was noted:

CTU had informed that NPCIL is seeking connectivity for Unit-3&4 from March, 2023.……………………

It was decided that additional transmission system beyond the six circuits (towards Tuticorin –PS and Tirunelveli) planned for Kudankulam, are not needed. However, if required, the evacuation system (including as proposed by TANTRANSCO) can be reviewed with the LTA application from NPCIL.

Kaiga GS 5&6 2x700Joint Study meeting 21/22.11.2019:CTU informed that NPCIL has submitted Connectivity and LTA applications in the month of June, 2019…..It was decided that the transmission system for evacuation of power from Kaiga APP Unit-5&6 (2x700 MW) shall be discussed in the upcoming SRPC(TP)

BHAVINIKalpakkam (PFBR)

I 500 End of 2020 As per BHAVINI letter dated 30.01.2019.

Operational feedback July to Sep 2019: With Full generation at MAPS & BHAVINI and with interconnection, the Fault MVA touching 25kA, the rated capacity of breaker.UMPPKrishnapatnam 3960

(6 x 660)36th SRPC: Based on the judgment, all the procures have encashed the BG amount of Rs.300 crores

M/s CAPL had filed petition before CERC with a prayer to refer the dispute between the parties to Arbitration under the Indian Council of Arbitration (ICA) Rules.

M/s CAPL had filed the rejoinder to the counter filed by APDISCOMs. Matter is pending before CERC.

A Meeting of all procures of UMPP Krishnapatnam was held on 07.05.2019, all the procurers except Maharashtra has communicated their consent to file petition jointly


before CERC in order to recover balance liquidated damages amount of Rs.100 crores from M/s CAPL and to oppose jointly before CERC on the proposal of M/s CAPL to refer the dispute between the parties for Arbitration under ICA Rules.

Cheyyur 4000

Request for Qualification (RfQ) and Request for Proposal (RfP) issued in 2013 were withdrawn. A fresh bid would be issued after finalization of SBDs. However, recently MoP is examining the possibility of setting up Cheyyur UMPP on domestic coal instead of imported coal. For setting up of this UMPP on domestic coal, additional land of about 767 acres for Ash Dyke area would be required. Power Finance Corporation has taken up the matter of identification of additional land for Cheyyur UMPP with the Govt. of Tamil Nadu. Ministry of Coal has been requested to identify the suitable coal blocks

36th SRPC:CMD, TNEBL had informed that they had discussion with various stakeholders; broadly the consensus was that most of the states were not interested. They would take up with MoP.

18. New Projects of State Sector & IPP18.1 Updated status of new projects of State sector is furnished below:

Sl No

Name of project Located in

Capacity in MW

Commissioning Schedule /Remarks

1 RayalaseemaTPS ST-IV AP 1 x 600 2019-202 Dr. NTTPS, Vijayawada AP 1 x 800 36th SRPC: 2019-203 Krishnapatnam Stage II

(U3)AP 1 x 800 36th SRPC: 2019-20

4 Polaki AP 4000 (5 x 800 MW)

5 Edlapur KAR 1 x 8006 North Chennai Stage III TN 1 x 800 36th SRPC: 2019-20

7 Ennore SEZ STPP(North Chennai Stage IV)

TN 2 x 660 36th SRPC: 2020-21

8 Ennore TPS Exp TN 1 x 660 36th SRPC: 2022-239 Ennore replacement TN 1 x 660 36th SRPC: 2022-2310 Udangudi Stage I TN 2 x 660 36th SRPC: 2021-2211 Udangudi Stage II TN 2 x 660 33rd TCC: 2023-2412 Udangudi Stage III TN 2 x 660 33rd TCC: 2024-2511 Uppur TPP (TBCB) TN 2 x 800 36th SRPC: 2022-2312 Manuguru TPP

(Bhadradri)TS 4 x 270 36th SRPC:

U1&2: COD September 2019U3: COD November 2019U4: COD December 2019OCC:U1: Synchronized on 19.09.2019

13 Kakatiya TPP Stage III TS 1 x 800 Not finalized14 Damaracherla (Yadadri) TS 5x800 36th SRPC:

Unit-1&2: Commissioning on


16.10.2020Unit-3,4&5: Commissioning 16.10.2021

st SRPC(TP) Agenda:Revised Transmission Evacuation Scheme to be discussed. Joint system Studies completed.

18.2 Updated status of new projects of IPPs is furnished below:

Sl No.

Name of project Located in

Capacity in MW

Commissioning Schedule /Remarks

1 Meenakshi PH-II AP 2 x 350 Unit 3 →Full Load on 15.04.2018,Unit 4 → Full Load on 05.07.2018Untied: 640 MW

2 East Coast Energy Thermal

AP 2 x 660 Uncertain

3 Thermal Powertech(TPCIL) Unit-III

AP 1 x 660

5 Godhna TPP, Janjir – Champa Dist, Chhattisgarh

For KAR

2 x 800

19. Review of ULDC / SCADA / Communication

19.1 Status of pending items is as follows:

Issues Status updateBackup Control Centre

PGCIL would be floating new combined Open Tender for Backup SLDCs for AP (Tirupati), TS (Warangal) along-with few other states.

Common specifications have been finalized by PGCIL in consultation with AP & TS for Back up SLDC.

Backup SCADA functionality testing frequency needs to be done once in 6 months to ensure high availability of data/preparedness to operate from Back up CC in event of any contingency. Compliance report may be furnished to SRLDC.

Periodical testing was being carried out by SRLDC & KSEBL.36th SRPC: TN SLDC from Madurai SLDC in

September 2019 KPTCL August 2019161st OCC (08.11.2019): KSEBL had carried out operation from

back up SLDC at Trivandrum on 17.10.2019.

ICCP with NTAMCPGCIL had confirmed that due to cyber security concerns data would not be extended to SRLDC from NTAMC ICCP.

SR II : Additional data points had been received from SRLDC and action is being taken to extend the inputs

Modification of EMS package


TSTRANSCO had received estimate of Rs 47 lakhs and the contract was being firmed up.

TS informed that M/s Alstom not responding.

VC

Puducherry would take up VC requirement in the financial year 2019-20

PED had informed that VC is being taken up in 2019-2020

OPGW connectivity to SRLDC from Hebbal

4th link to SRLDC was established and tested on 07.08.2019

OPGW issues in KPTCL system

EDC to HAL section 161st OCC: KPTCL had informed that the section would be rectified by December 2019.

Drawal Computation

Tamil Nadu had agreed to compute independent ISTS drawl which could be regularly verified with SRLDC drawl figures.

Configuration to 104 protocol

162nd OCC: SR II informed that the problem had been observed during reconfiguration while upgrading of RTU protocol from 101 to 104. Support from SRLDC was also required to resolve the issues. The issues would be resolved within 15 days.

19.2 Communication Audit

In compliance to CERC (Communication System for Inter - State Transmission of Electricity), Regulations 2017, Annual Communication Audit report in respect of SR for the year 2019-20 would be carried in April 2020. All the utilities needed to maintain the data in the requisite format.

Physical verification/audit has been carried out at 21 Substations of CTU/STUs during the year 2019-20 (details at Annexure-XXVI).

19.3 Cyber Security Audit and VAPT

CISO MoP vide letter dated 31.01.2019, 20.02.2019, 22.04.2019 and 29.05.2019 had requested all stake holders to carry out Cyber Security Audit and VAPT of ICT Infrastructure, website, web application etc in defined intervals by CERT-in empaneled cyber security audit agencies to avoid vulnerability and report to CISO MoP along with the key findings of the audit. The above details may kindly be sent to [email protected] with a copy to [email protected].

This has been regularly followed up in the sub-committee meetings and TCC/SRPC meetings.

SRPC vide letter dated 30.10.2019 (Annexure-XXVII) had taken up the issue of capacity building with Chief Engineer (IT), CEA & CISO, MoP.


The following entities had carried out the Cyber Security Audit during the year 2019-20:

Entity Date Entity Date

APTRANSCO VA Audit of assets

13.05.2019 TSTRANSCO VA Audit

08/09.05.2019

NTECL IT Audit

18-21.06.2019 PGCIL GIGW Certification of website

14.01.2019 – Valid till 13.01.2022

SRLDCMain SRLDC SCADA

25.02.2019 & 27.02.2019Next schedule is Feb/March 2020

SRLDCBackup SRLDC SCADA

27.02.2019 & 28.02.2019Next schedule is Feb/March 2020

It may be noted that Cyber Security Audit was to be carried out by the concerned entities (once in a year as agreed in SRPC forum) in compliance of CERC Communication Regulations.

19.4Signing of Agreement / MoU between POWERGRID and Constituents for replacement/upgradation of RTUs

In the 35th Meeting of SRPC, the Committee had approved the replacement/upgradation of RTUs.

In the 36th SRPC meeting, it was noted that the up-gradation of RTU (installed under ULDC project) in SR CTU stations would be completed by end of October 2019 by PGCIL. Later complete replacement would be taken up.

In the 160th OCC Meeting SR II, PGCIL had informed that work has been awarded to M/s GE at a cost of Rs.2,07,44,400/-. However, M/s GE has come up with complete replacement of D20 CPU with D400 CPU which has got additional features to cater future requirements and compliance to cyber security.

Constituents have recommended for approval.

19.5 Strengthening of ISTS Communication System

PGCIL had highlighted the need for replacing the OPG on 400 kV Ramagundam - Chandrapur and 400 kV Jeypore - Gazuwaka lines as the existing Optical Fibre was more than 15 years old and performance had deteriorated. There was additional requirement from NLDC of redundant paths in view of the all India implementation of AGC for central sector ISG generators. Further in draft communication planning criteria of CEA, there were clauses of N-1compliance. Between ER-SR beside Angul-Srikakulam only Jeypore – Gazuwaka was the only connectivity. All the new lines are coming up with OPGW.

In Special Meeting held on 07.11.2019, PGCIL had confirmed that there was no OPG on Talcher-Kolar HVDC link (ER-SR) while Raigarh-Pugalur HVDC link (WR-SR) was coming with OPG. After deliberations the following was agreed:

OPG on 400 kV Jeypore - Gazuwaka lines would be recommended to TCC/SRPC for approval. The cost breakup of this project (out of 13 Cr) will be informed by PGCIL.


PGCIL would come out with details justifying the requirement for OPG on 400 kV Ramagundam - Chandrapur lines (AGC, N-1, strengthening etc) in the forthcoming OCC meeting.

19.6 Renewable Energy Management Centre (REMC)

REMC Location

Status as in 162nd OCCM (10.12.2019)

PGCIL informed that M/s OSI had taken one and a half month extension to complete the pending works.

SRLDC SAVT (1000 hrs) test had been completed. The list of pending works was being compiled.

AP SLDC SAT over. SAVT stopped on 13.10.2019 due to some issues. M/s OSI was working on it. SAVT would be taken up again. Cooperation of AP SLDC sought.

KAR SLDC SAVT completed by 25.09.2019. Forecast Software under evaluation.

TN SLDC SAVT completed.

20. URTDSM (PMU) Project in Southern Region

20.1 The following had been noted in the 36th Meeting of SRPC:

In the 156th Meeting of OCC, the forum had requested to explore the possibility of installing PMU’s at STATCOM substations (Ghanapur, Udumalpet, and Trichy) in SR and other important substations by optimizing the existing PMU’s available under URTDSM project.

TCC had suggested the SLDCs to make use of the Analytical Applications in close co-ordination with SRLDC. Issues, if any, needed to be brought to the attention of PGCIL (Smart Grid) & IIT B.

Possibility of shifting would be explored by PGCIL- SR I & SR II for LI, RE and STATCOM locations.

SRPC had approved that the charges towards shifting of PMU would be booked by PGCIL under O&M or any other project.

20.2 The following was noted in OCC Meetings:

IIT B training on Analytical Applications was conducted from 21st to 23rd October 2019 at SRLDC.

PGCIL had agreed for shifting the PMUs to STATCOM locations and the other proposals of adding feeders to existing PMUs (Karaikudi (SR II), Narnoor & Mahaboobnagar (SR I)).

SRLDC was stating that PMUs were to be shifted to other RE & Pump locations


also as agreed in the SRPC meeting. PGCIL had stated that these can be covered in Phase II of URTDSM.

21. Optimum harnessing of RE in Southern Region

21.1 Follow up of MoP meeting – Implementation of SAMAST

21.1.1The following had been noted in earlier Meetings with regard to SAMAST:

APTRANSCO had informed that sanction of grant from PSDF has been received but funds were yet to be received. Further specifications for meters, hardware, servers etc were under finalization. Prepared RfP and submitted to procurement department and tender in this regard would be floated shortly.

KPTCL had informed that they had placed the Order for meters which are adjustable to 0-60 minutes. DPR for Rs. 43.3 Crores had been submitted on 08.12.2017 for funding from PSDF. Procurement of SEMs are not covered in the scheme for funding from PSDF. Separate NIT was issued for SEMs. TESG of PSDF had recommended Rs 10 Crores (out of Rs 43.3 Crores). After sanction of the grant from PSDF further action would be taken up.

KSEBL had informed that they had submitted DPR (Rs 53 crores) to NLDC for funding from PSDF and requested for expeditious approval of the scheme.

TANTRANSCO had informed that PO had been placed on 13.12.2017; and the project was moving ahead. The pilot would be operational by end of Feb 2019. Balance installment (Rs 1.19 Cr) from PSDF was to be released. Hardware part is in place and software SAT is under progress and would be completed by 20 th July 2019. The scheme expected by end of July 2019.

TSTRANSCO had informed that DPR for Rs. 87 Crores had been submitted for funding from PSDF and the matter was being followed up. SEM data integration in SCADA would be included in DPR. The sanction of grant from PSDF is awaited

21.2 Pump Storage Plants

21.2.1 The following is the status of upcoming Pump Storage Plants in SR:

State PSP Scheme StatusAndhra Pradesh

Sileru (6 x150 MW)35th SRPC : Work Order had been awarded by APGENCO to WAPCOS for DPR and to obtain all relevant licenses/permissions required from CEA/CWC/MoEF

Karnataka Sharavathy (2000 MW)36th SRPC: KPCL had informed that all 15 zones are falling under forest area, the matter is brought to the notice of CEA and was being to take up with MOEF.Joint study meeting (20/21.11.2019) : KPTCL had informed that they have not received the exact commissioning schedule of the project from KPCL.Varahi

Kerala Sholayar-I (810 MW) 36th SRPC: KSEBL had informed that the schemes are dropped and Sholayar-II (390 MW)


alternative locations were being explored.

Poringalkuthu(80 MW)

Tamil Nadu Kundah (4 x125 = 500 MW) 36th SRPC : 2022-2333rd TCC: All the statutory clearances required for the project have been obtained. EPC contracts for establishment of packages I & II of phase I of this project relating to Civil and Hydro mechanical works have been awarded on 15.02.2018. Due to no response for the tenders floated for Package-III of Phase-I, Phase II & Phase III (E & M works) retendering is being processed.Sillahalla-I (4x250 = 1000 MW) 42nd SCPSPSR : 2023 onwards33rd TCC: The First Stage (1000 MW) with the proposed Sillahalla reservoir as upper Reservoir and a new reservoir below the existing Kundah Paalam & Kundah Power House I as lower reservoir is to be taken up. Tender for Consultancy services towards preparation of DPR for the Stage –I of this project has been floated.Preliminary works are under progress. The project is expected to be commissioned in the year 2024.Sillahalla-II (4x250 = 1000 MW) 42nd SCPSPSR : 2023 onwards4 projects on existing sites. 33rd TCC: To be taken up later.33rd TCC: Manalar PSHEP (500 MW) and Kodayar PSHEP (500 MW) are in preliminary investigation stage. The other two PSHEPs are found to be not much suitable. Further investigations are under progress.

21.2.2. L ift I rrigation P rojects G rid I ntegration

The following had been noted in the earlier Meetings:

Lift irrigation loads are coming up in large quantum in TS and AP control area.

TSSLDC/APSLDC had been suggested to look into the frequency response, MVAR control for voltage management, MW scheduling (for 96 blocks), ramp management, SCADA integration etc.(the same was highlighted in the SRSCT Meeting held on 10.06.2019).

APTRANSCO had informed that most of the pumps are required to run for 24 hours and there were some inundation issues. There may be no scope of optimization.

TSTRANSCO had informed that issue is under deliberation at Highest Level.

APTRANSCO/TSTRANSCO may kindly update.

22. Monitoring of schemes funded from PSDF

22.1 The following had been noted in the 36th Meeting of SRPC: The progress of implementation of the schemes needed to be submitted to the

Monitoring Group of PSDF regularly. The project entities were requested to expedite signing of the agreement. The project entities were advised to complete the sanctioned scheme as per the

specified time line. In case any delay foreseen, time extension request needed to be


submitted. NPC/ NLDC were requested to convene a special meeting of the project entities in

SR to discuss all the schemes in SR funded from PSDF.22.2 Subsequently, SRPC vide letters dated 30.07.2019 & 30.10.2019 had requested

NPC/NLDC to convene a meeting of PSDF Monitoring Group. Accordingly, the PSDF Monitoring Group meeting under Chairmanship of Member (GO&D), CEA was held on 25.11.2019 at SRPC, Bengaluru (MoM awaited).

22.3 Status of the schemes in SR on 25th November 2019 is as given below:

State / Entity Number of Schemes

Sanctioned

Grant sanctioned (Rs.

Crores)

Grant disbursed

(Rs. Crores)

Number of Schemes

CompletedAndhra Pradesh 5 329.26 158.36 -Karnataka 3 205.06 76.75 1Kerala 6 581.80 441.61 1Tamil Nadu 8 500.90 93.37 -Telangana 5 247.72 142.37 2Puducherry 2 13.19 1.71 -PGCIL-SR 1 378.04 332.86 -SRPC 2 30.59 19.84 1Total 32 2286.56 1266.87 5

23. Emergency Restoration System (ERS)

23.1 Requirement of ERS had been outlined in MoP letter dated 05.12.2014. The status is being monitored at higher level. Status update is given below:

Transmission Utility Requirement as per MoP

Existing Status/Remarks as noted in 36th SRPC

APTRANSCO 3 2 Under process

KPTCL 2 2

KSEBL 1 Retendering under process.

TANTRANSCO 2 Tender would be opened in September 2019

TSTRANSCO 1 Under process.PED Nil Nil

PGCIL 4 (2 Nos.

Additional)

4 (SR I & SR II is

having 2 no. Each)

SR-I: 765 kV ERS placed at Nellore.


24. Issue of prevailing over Voltages in SR Grid

24.1 Number of nodes in SR are facing high voltage problems. PGCIL had pointed out that these over voltages lead to over stress of substation equipment including ICTs, Reactors, CVTs, CTs etc. Life span of equipment was also affected adversely leading to early failures.

24.2 The following had been deliberated in earlier Meetings:

All entities had agreed to look into the MVAR injections (at V >103 %) at the identified nodes and take corrective action (short term and long term) to address the issues.

SRLDC had assured that lines would be taken out proactively considering N-1 reliability. Further, pro-active action would be considered in case of known trends of increase in voltages and lines would be opened at voltages less than 430 kV. In case of double circuit, one line would be taken out on sustained basis (7 days) to avoid frequent switching operations.

SRLDC had stated that the SRLDC control room was issuing messages for voltage management to the state entities during night hours (around 21 hours) and had requested the states to take specific action and support in managing the reactive power.

24.3Details of nodes of high voltage coupled with MVAR injection during July to November 2019 are given below:

Nodes with MVAR injection during V > 103%AP KAR TN TS

Chittoor Madhugiri Tirunelveli MaheshwaramSattenapalli Nelamangala Karaikudi HyderabadVemagiri Raichur Alamathy MehaboobnagarHindupur Guttur Pugalur DichipallyVijayawada Munirabad S V Chatram WarangalKurnool Hoody Kalavinthapattu MalkaramGazuwaka Gajwel

KhammamShankarpalli

24.4 As agreed in the 36th SRPC meeting, Chairperson, SRPC vide letter dated 16.07.2019 (Annexure-XXVIII) addressed to Secretary (Power) had taken up the issue of PSDF funding for reactors in view of the high voltage issues in SR grid.

24.5 NLDC in its Operational Feedback for the period July to September 2019 had highlighted the following nodes which were facing high voltages:

High voltages throughout the year High voltages during off peak hours/off season

400 kV Kurnool, Sattenapalli, Ghani, 400 kV Gooty, Malkaram, Asupaka,


Jammalmadugu, Uravakonda, Kalikiri, Podili, Dindi, Ghanapur, Veltoor, Suryapet, Mamidipally, Maheswaram, Srisailam LB, Ramadugu, Jelurupadu, Warangal & Medaram

Hassan, Mysore, Tumkur, Karaikudi, Udumalpet, Anaikaduvu, Rasipalayam, Narendra, Tirunelveli & Hinduja

765 kV Kadapa & Nizamabad,

24.6 MVAR interchanges by Generators

Performance of SR generators had been analyzed in the Special Meetings and OCCM, wherein the following had been recommended:

Many of the stations had not furnished MVAR interchange details and therefore, a comprehensive exercise could not be carried out. The SRLDC controlled stations response would be analysed in the OCC meeting. The state embedded generators need to furnish their response to the SLDCs (with a copy to SRLDC/SRPC) and unit-wise / station-wise analysis would be carried out.

There were still some margins available as per Capability Curve and generators could consider improving the MVAR interchange.

Few units were not keeping the Vref to nominal and were changing it manually to control / restrict the MVAR interchange. This was to be discontinued.

25. Progress of bus/line reactors to be commissioned in SR

25.1 Status of implementation of Bus / Line Reactors / Dynamic Compensation approved in the Standing Committee / SRPC pending for commissioning by the SR constituents is furnished below:Entity Bus Name Status REMARKS

KPTCLHoody 162nd OCC: By 15.01.2020 36th SRPC:

By August 2019Nelamangala Commissioned on 19.10.2019

Entity Bus Name

Capacity in MVAR(400 / 765

kV)

Approved in Type Remarks

PGCIL

Yelahanka 2 x 63 40th SC Bus

Award placed in May 2018.PGCIL (Oct 19):Nov 2019

Hosur 63 to 12542nd

SC/1st SRSCT

Bus PGCIL (Oct 19): July 2021

Madhugiri 63 to 12542nd

SC/1st SRSCT


Dharmapuri 12542nd

SC/1st

SRSCTBus PGCIL (Oct 19): July

2021

Hiriyur 125 42nd

SC/1st

SRSCT



Pugalur 12542nd

SC/1st


2021

Pugalur HVDC 2 x 12542nd

SC/1st


2021

Karur PS 2x125 2nd

SRSCT Bus

Munirabad PS 2 x 125 2nd

SRSCT Bus

Kurnool III PS 330 (765kV) 2nd

SRSCT Bus

Kurnool III PS 125 2nd SRSCT Bus

Kurnool III PS 240 (765 kV) 2nd SRSCT Line

Maheswaram (PG)

240 (765 kV)

2nd

SRSCT Line

Ananthapuram PS 2 x 125 2nd

SRSCT Bus

Gadag PS 125 2nd

SRSCT Bus

Bidar PS

240 (765 kV)

2nd

SRSCT Bus

125 2nd

SRSCT Bus

Dharmapuri (Salem New)

240 (765 kV)

2nd

SRSCT Bus

Madhugiri (Tumkur)

240 (765 kV)

2nd

SRSCT Bus

Tuticorin PS 330 (765 kV)

2nd

SRSCT Line

Dharmapuri (Salem New) on Tuticorin

330(765 kV)

2nd

SRSCT Line

Dharmapuri (Salem New) on Madhugiri

330(765 kV)

2nd

SRSCT Line

Madhugiri (Tumkur) on Narendra New

330(765 kV) 2nd

SRSCT Line

Narendra New on Madhugiri 330(765 kV) 2nd

SRSCT Line

Tuticorin PS, Dharmapuri (Salem New), Madhugiri (Tumkur) and Narendra New

2nd

SRSCT

Existing Line to

bus

APTRANSCO Chittoor 125 39th SC Bus 36th SRPC: By Dec 2019Vijayawada 125 39th SC 36th SRPC: By Dec 2019Uravakonda 125 42nd SC Bus 36th SRPC: By Dec 2019Sattenapalli 125 36th SRPC: By Dec 2019Mylavaram (Kadapa) 125 Bus

Rachagunneri 12542nd

SC/1st

SRSCTBus 36th SRPC: By Dec 2019

Hindupur80 42nd

SC/1st Bus 36th SRPC: By July 2019


SRSCT

12542nd

SC/1st

SRSCTBus 36th SRPC: By Dec 2019

Krishnapattnam 2x80 36th SRPC: approved in 2nd SRSCT for charging.

Chilkaluripeta 125 2nd

SRSCT Bus

Guddigudem 125 2nd

SRSCT Bus

Eluru 125 2nd

SRSCT Bus

Kakinada 125 2nd

SRSCT Bus

APGENCO VTPS Stage IV 125 39th SC Bus 34th TCC: PSDF approval awaited

Polavram HEP 2 x 125 42nd SC Bus 34th TCC: Included in EPC contract

KPTCL

Davanagere 125 39th SC

Talaguppa 125 39th SC

C N Halli 2 x 12542nd SC/

1st

SRSCTBus

36th SRPC: Land acquisition under progress.

Jagalur 2 x 12542nd SC/

1st

SRSCTBus

Joint study meeting 21/22.11.2019:It was decided that since 2 x 80 MVAr bus reactors have already been installed, the 2 x 125 MVAr bus reactors proposed in 42nd

SCPSPSR meeting may bedropped as of now.

Yalwar 2 x 125 2nd

SRSCT Bus

Kadakola 2 x 125 2nd

SRSCT Bus

KPCL

Yeramarus 12542nd SC/

1st

SRSCTBus

Bellary 2 x 12542nd SC/

1st

SRSCTBus

KSEBL Wayanad

12542nd SC/

1st

SRSCTBus

34th TCC: KSEBL stated that Wayanad is proposed as switching station in the long term transmission plan of KSEBL. This is envisaged as a part of Areakode - Kasargode 400 kV link. Since reactors are planned as part of 400 kV S/S Kasargode, the same may not be required at Wayanad. KSEBL was suggested to take up this issue in SRSCT.

TANTRANSCO Almathy 125 39th SC Bus Specification under process.

Manali 125 39th SC Bus Tender floated

Kayathar 125 39th SC Bus Specification under process.

Kamuthi 2 x 80 39th SC Bus


Virudhnagar (765 kV)

2 x 330 42nd SC Bus2 x 330 42nd SC Line

Coimbatore (765 kV) 2 x 240 42nd SC Line

Kayathar 125 42nd SC BusKamuthi 125 42nd SC BusThappagundu 125 42nd SC BusKadaladi 125 42nd SC BusParali 125 42nd SC BusArni 2 x 125 42nd SC Bus

Velalividu 125 1st

SRSCT Bus

Rasipalayam 63 Bus 2018-19Edayarpalayam 2 x 125 Bus

Vishwanathapuram

2x50 2nd

SRSCT Line

1x125 2nd

SRSCT Bus

TANTRANSCO/ TANGEDCO Mettur 125 39th SC Bus

2019-20. To be diverted from Palavadi and works to be taken up.

TSGENCO KTPP 125 1st

SRSCT Bus

TSTRANSCO Asupaka 80 42nd SC Bus 36th SRPC:1. Administrative

approval was accorded by TSTRANSCO for installation of Bus/Line Reactors at various sub-stations.

2. Requested SRPC for grant from PSDF for execution of above Reactors and approval is awaited

3. The estimates for the works are under preparation.

Suryapet 12542nd

SC/1st

SRSCTBus

Rayadurg 12542nd

SC/1st

SRSCTBus

Kamalapuram 12542nd

SC/1st

SRSCTBus

Narsapur 12542nd

SC/1st

SRSCTBus

Maheshwaram 12542nd

SC/1st

SRSCTBus

Kethireddypally (Manikonda) 125

42nd

SC/1st

SRSCTBus

Jangaon 12542nd

SC/1st

SRSCTBus

Choutuppal 12542nd

SC/1st

SRSCTBus

Dindi(2nd Reactor in place Srisailam LB)

125 1st

SRSCT Bus

Tippapur 12542nd

SC/1st

SRSCTBus

Yellampalli 125 42nd

SC/1st

SRSCT

Bus


Yadadri (Damaracherla) 2x125 2nd

SRSCT Bus

NPCIL

Kaiga 2 x 125 Bus36th SRPC: Tenders for both the reactors would be opened in July 2019 end the

commissioning of the reactors expected by March 2020.161st OCC: Technical Bid evaluation had been completed. Some queries have been

replied. Commissioning may not be possible by March 2020 as committed.

Joint meeting at CEA (22.11.2019): The work is likely to be awarded by March, 2020.

UPCL

Udupi 2 x 125 39th & 41st SC Bus

36th SRPC: UPCL informed that going ahead with tendering.161st OCC: For reactor implementation UPCL informed that KPTCL approval (drawing etc) was being undertaken. Electrical approval will be received only after KPTCL approval.162nd OCC: KAR SLDC had informed that 400 kV Hebbanahalli S/s (Yettinahole LIP) would be handed over to KPTCL by March 2020.

NLCILNLC TPS-II

2nd

Expansion2 x 125 2nd

SRSCT Bus

The entities to kindly expedite commissioning of reactors, since high voltage was being observed on a sustained basis.

25.2 Dynamic Compensation (Approved in 36th SC)

Entity Bus NameSC MVA GVA / KA

Dynamic Compensation (STATCOM)

Mechanically Switched

Compensation (MVAR)

Remarks

Reactor Capacitor

PGCIL

Hyderabad 18.4/ 26.5

+ 200 MVAR 2x125 1x125 Commissioned on 04.09.2019

Udumalpet 19.4/ 28.0

+ 200 MVAR 2x125 1x125 36th SRPC:August 2019

PGCIL vide letter dated 16.12.2019 had informed that the STATCOM at Udumalpet had been put under trial operation wef 16.12.2019.

Trichy 12.5/ 18.0

+ 200 MVAR 2x125 1x125 PGCIL (Oct 19): Nov 19

NLDC vide letter dated 19.04.2018 had issued procedure for 1st time charging of STATCOM (enclosed as Annexure to 159th OCC MoM).

a) Dynamic reactive support by utilizing STATCOMs at Hoody and Nelamangala

In the Joint Study meeting held on 21/22.11.2019, the following was noted:It was decided to explore feasibility of both use of Solar Inverter and STATCOM for containing voltage within limits in the SR grid.

25.3 High voltage issue persisting at Mysore Substation -POWERGRID/SR-II

In 158th / 159th meetings, OCC had agreed in principle on using the 80 MVAR line reactors as bus reactors of Mysore-Hiriyur lines based on the study report of SRLDC which had shown an improvement of around 7 kV at Mysore SS and 4 kV at Hassan SS.

PGCIL vide letter dated 11.12.2019 (Annexure-XXIX) had put the 2 x 80 MVAR line


reactor (charged as bus reactors) at Mysore SS had been put on trial operation from 11.12.2019.

25.4 Reactive Power Planning

25.4.1 Status of Capacitor installation in Transco/Discoms is as given below:

Utility Reactive Power Planning2019-20

Voltage level

Remarks( as reported up to

30thNovemberr 2019) APTRANSCO Kadapa: 194.4 MVAR

Vijayawada: 172.8 MVARVisakhapatnam: 215.4 MVAR

On 33 kV side

Kadapa: 14.4 MVAR commissionedVijayawada: 0Visakhapatnam: 6.60 MVAR commissioned.

APSPDCL 174 MVAR 78 MVAR commissioned

APEPDCL 0 MVAR 0 MVAR commissioned KPTCL Bengaluru Tr. Zone: 388.6 MVAR 12.1 kV 324.8 MVAR commissioned

Bagalkot Tr. Zone: 14.5 MVAR 12.1 kVHassan Tr. Zone 11.6 MVARGulbarga Tr. Zone: 8.7 MVAR 2.9 MVAR commissionedTumkur Tr. Zone: 17.4 MVAR 12.1 kV 5.8 MVAR commissioned

TSTRANSCO 272.8 MVAR TSNPDCL 200 x 2 MVAR

127 x 1 MVAR 72 x 2 MVAR

48 x 1 MVAR commissionedTSSPDCL 13 x 2 MVAR

1 x 1 MVAR 12 x 2 MVAR

1 x 1 MVAR commissionedTANGEDCO 34 x 2.4 MVAR 11 kV Work not yet completed. Court

case is pending vide WP No.25515 of 2018, filed by the company

16 x 2.4 MVAR 22 kV 16 Nos. Commissioned.2 MVAR - 94 sets 11 kV IPDS - LOA issued on

07.03.201913 x 24 MVAR 110 kV PO placed and works under

execution.4 x 24 MVAR commissioned

2 MVAR - 78 sets

11 kV DDUGJY - LOA issued on 07.03.2019. Work under execution

67 Sets of 2.4 MVAR capacitor Bank in Coimbatore region

11 kV Instead of 183 sets (82+101) quantity revised as 68 (67 at Coimbatore +1 Erode region) sets DPR submitted to PSDF, Delhi for approval

2.4 MVAR 1 set - Erode region 11/22 kV

2.4 MVAR 30 sets - Vellore region

11/22 kV 34 sets revised as 30 sets based on NLDC remarks. DPR submitted to PSDF, Delhi. Returned by NLDC due to remarks in the results of study conducted by CPRI.


49 sets of 2.4 MVAR - Trichy, Villupuram, TVL, MDU & CNI(S)

11/22 kV 76 sets revised as 49 sets based on NLDC remarks. DPR submitted to PSDF, Delhi. Returned by NLDC due to remarks in the results of study conducted by CPRI.

26. Transmission charges pertaining to NTPC- Kudgi STPS

26.1 The following had been noted in the earlier Meetings:i. NTPC had requested CTU for the revision of LTA granted to NTPC for Kudgi TPS

from 2392.49 MW to 2250 MW (after considering the Auxiliary Consumption, 6.25% as per CERC Tariff regulations, 2019) on account of auxiliary consumption and overload capacity.

ii. CTU had intimated that 142.49 MW is relinquished from 2392.49 MW to 2250 MW on account of auxiliary consumption and overload capacity. It was requested to facilitate the signing of necessary amendments to agreements as per provisions of CERC Regulations 2009 as amended from time to time.

iii. NTPC had requested all beneficiaries to take up with CTU for signing of the requisite agreements to make the revision of LTA effective.

iv. PGCIL had informed that as per the RTAs issued by SRPC during August 2017 to September 2018, bills for an amount of Rs 363 Cr. were raised on NTPC towards the LTA charges for the un-commissioned generation, however, NTPC did not make the payment and hence there was shortfall of Rs 363Crs in recovery by the ISTS Licensees from the POC Pool.

v. PGCIL had stated that in a petition filed by NTPC against the billing, CERC directed that the LTA be operationalized from the COD of Associated Transmission System and the proportionate YTC of the ATS be collected from NTPC till commissioning of their pending generation. SRPC issued the revised RTA for NTPC revising the billing amount to Rs 304.10 Cr. On relevant billing by CTU, the amount has been paid by NTPC.

vi. PGCIL had further stated that there is still a shortfall of Rs 59 Cr. in recovery in the POC Pool, which needs to be collected from the other DICs in the POC Pool through adjustment in the POC bills upon revision of POC slab rates / SR-RTA for the period August 2016 to September 2018. Applicable credit notes for revision of NTPC billing as per CERC order were accounted during July 2018- September 2018 Bill-3 and it is to mention that refund to the DICs doesn’t arise as there is still an under recovery of Rs 59 Crs which needs to be collected upon revision of PoC rates by NLDC/CERC. As desired, the YTC details of ATS for Kudgi evacuation and LTA details have been furnished to NLDC with copy to SRPC vide letter dated 18.02.2019.

vii. PGCIL had requested KSEBL to immediately release the withheld amounts of Rs 3.87 Crs in respect of Kudgi Transmission limited charges disallowed in BILL-3 to


avoid further applicability of late payment surcharge.

viii. SRPC Secretariat had requested POSOCO to kindly examine and furnish the necessary details to facilitate SRPC Secretariat to proceed further. In reply to this letter POSOCO had informed that Implementing Agency had carried out the PoC rate re-computations and submitted the results to CERC. The revised PoC rates order is pending with CERC.

ix. The revised RTA pertaining for the applicable period would be issued after CERC Order on revised PoC Rates.

26.2 The following had been noted in the 42nd Meeting of Commercial Sub- Committee held on 22nd October 2019:

i. It was noted that CERC had issued revised PoC Rates vide Orders dated 10.10.2019.

ii. SRPC Secretariat had informed that they were in the process of revision RTA/RTDA from July 2017 to September 2019 as per the revised PoC rates notified by CERC.

iii. KSEBL had informed that an amount of Rs.3.87 crores disallowed in the Bill-3 of PGCIL had not released so far. The PoC slab rates were revised but not starting from August 2016. Revision in RTA was required for the period August 2016 to June 2017 also.

iv. TANGEDCO had stated that the Billing of transmission charges from August 2016 to June 2017 should also be billed on the generator bilaterally, for which CTU may take necessary action.

v. PGCIL had informed that the charges for the period August 2016 to June 2017 would be taken care in Bill-3 after the receipt of the revised RTA/RTDA as per CERC order.

26.3 The revised RTA for the period July 2017 to September 2019 are issued on 15.11.2019.

26.4 Hon’ble CERC in its Order dated 27.11.2019 on KSEBL Petition No. 220/MP/2018 for adjudication of dispute on the recovery of transmission charges of Element-II and Element-III of Kudgi Associated Transmission system from the beneficiaries before the Commercial Operation of the Kudgi STPS had passed the following:

‘We are of the view that the issue raised in the instant petition has become infructuous by virtue of order of the Commission dated 6.11.2018 in Petition No. 261/MP/2017 and subsequently PGCIL recovering Rs 305 Crore from NTPC as per order in Petition No. 261/MP/2017. We direct that the transmission charges recovered by PGCIL be accounted for in terms of order dated 6.11.2018 in Petition No. 261/MP/2017 by raising bills based on revised RTA as soon as possible, if not done already.’

26.5 In the 2nd SRSCT held on 10.06.2019 (MOM issued on 10.07.2019), the following was noted:

‘After deliberations, it was decided that henceforth RE generators shall be required to submit the certificate issued from DISCOM(s) for waiver of transmission charges and losses, for which suitable format shall be developed by CTU and advisory shall be issued in this regard on its website.……………….


SRPC and STU representatives also requested that the information pertaining to bilateral billing to generators as part of RTA, may be provided for compliance with the CERC Regulations. CTU agreed to provide the same’.

PGCIL/ Beneficiaries of Kudgi TPS may update the billing status etc.

27. Inclusion of all bilateral billing (including RE generators) in RTA

27.1 In the 41stMeeting of Commercial Sub-Committee, PGCIL had stated that the exemption for transmission charges as per MoP Order dated 13.02.2018 is applicable after commissioning of RE generation and fulfillment of other conditions. Considering the commissioning of RE generation in line with MoP Order, bilateral bills on the delayed RE generators are being raised within Jun 2019. However, it may be mentioned that Amendment 6 to CERC Sharing Regulations stipulates that the exemption of transmission charges is applicable after the COD of the generation and the ambiguity between the commissioning / COD as per MOP Order / Regulations is taken up with CERC for clarification.

27.2 PGCIL had informed that the details of bilateral billing (upstream and downstream) would be furnished from June 2019 onwards (including the period from the date of operationalization of LTA).

27.3 The following had noted in the 36th Meeting of SRPC:

Complete bilateral billing details including RE were yet to be furnished by CTU. TCC had suggested CTU to furnish complete details of bilateral billing (including

RE) for inclusion in RTA in compliance to CERC Order. 27.4 The following had been noted in the 42nd Meeting of Commercial Sub-Committee:

TANGEDCO stated that CTU may bring on record the details of bilateral billing details of other generators including RE generators who have not commissioned their projects after CoD of associated transmission projects. Further, TANGEDCO urged the forum to direct the CTU/SPPDs to share the SPD wise/generator wise details of CoD / PPA tie-up with beneficiaries so as to ascertain the LTA waiver granted to such RE generators.

Commercial Sub-Committee had suggested PGCIL to collect all the details SPD wise/generator wise details of CoD / PPA tie-up with beneficiaries etc. for inclusion in RTA.

SR-II, PGCIL agreed to furnish the details as and when received from CTU.

27.5 SRPC vide letter dated 11th November 2019 had requested NLDC and PGCIL to communicate details of all bilateral billings (including RE) for inclusion in RTA to comply with CERC orders.

NLDC/PGCIL may update the status.

28. Pending payments between PCKL and KSEBL


28.1 The following had been noted in the 36th Meeting of SRPC:

i. KSEBL had informed that there were some pending payments from PCKL. KSEBL expressed concern on admissibility issue being raised by PCKL/KPTCL. Admissibility part was already discussed and settled in earlier meetings.

ii. PCKL had assured that one to one meeting with KSEBL would be held shortly.

iii. CMD, KSEBL had stated that PCKL on earlier occasions had assured that this would be settled before next SRPC meeting. He hoped that before next SRPC meeting PCKL would make the payment.

iv. MD, PCKL had stated that a meeting in this regard would be convened and payment issue would be sorted out.

28.2 The following had been noted in the 42nd Meeting of Commercial Sub-Committee:

i. PCKL / KSEBL had informed that a meeting was held on 19.10.2019 and discussed the following issues:

a) Reimbursement of wheeling charges collected by KPTCL at the rate of 2.5 ps/unit for the period from July 2011 to August 2015

b) Reactive energy charges c) Frequency linked penalty scheme for over drawal / under drawal from April 1994

to May 1997d) Refund of Fixed Transmission Charges to KSEBL

ii. PCKL had stated that some of the issues needed to be discussed at Management level.

iii. KSEBL had stated that the following receivables are pending from PCKL/KPTCL.

a) Rs.12.76 Crores with applicable interest towards the reimbursement of the already paid transmission and wheeling charges from 2011

b) Rs. 6.04 Lakhs with applicable interest towards the Reactive energy Charges for the period from 10.12.2019 to 22.9.2019

c) Applicable interest portion of the principal amount of frequency linked compensation of Rs. 11.58 Crores from 2013.

d) Since the above payments are pending from PCKL the Reactive energy charges of Rs. 17,51,231 / for the period from 30.5.2016 to 21.7.2019 payable to PCKL is not made by KSEBL

iv. Commercial Sub-Committee suggested that PCKL/KSEBL may settle the outstanding payments issues in line with the decisions of Sub-Committees/ SRPC.

KSEBL/PCKL may update the status.

29. Reactive energy charges between KPTCL and KSEBL

29.1 The following had been noted in the 42nd Meeting of Commercial Sub-Committee:


i. PCKL had proposed deliberation on the payments towards reactive energy charges to Kerala in view of the radial nature of 220 kV Kadakola-Kaniyampeta and 110 kV Koneja- Manjeswaram lines.

ii. PCKL had informed that KSEBL had raised invoice for Rs.4.69 lakhs for the period from 10.12.2018 to 24.02.2019 towards reactive energy charges as per SRPC weekly reactive energy charges statements. PCKL vide letter dated 24.09.2019 had informed KSEBL that reactive energy charges are not payable stating the reasons.

iii. KSEBL had stated that unilateral decision of PCKL regarding the payment of reactive charges was not acceptable and not correct as it is against the SREB decisions. The computation of VAR charges is in line with clause 6.6.7 of IEGC. PCKL’s dispute regarding the methodology of reactive energy charges may be deliberated in all appropriate forums.

iv. SRPC Secretariat had stated that the Reactive Energy Charges accounts on weekly basis being prepared in line with the provisions of IEGC Regulations. There is a provision in the IEGC that concerned Regional entities may mutually agree not to have any energy charge/payment for VAr exchanges between them on an interconnecting line.

v. PCKL had stated that the issue would be deliberated further.

The issue may please be deliberated and finalized.

30. Pending payments between WR & SR Constituents

30.1 The following had been noted in the earlier Meetings of SRPC:

KSEBL had pointed out the difficulty of settling a long pending claim of KSEBL for Rs.1,21,47,260/- from MPPMCL & Rs.7,05,279/- from CSPDCL. KSEBL had requested SRPC to intervene for a reconciliation discussion between KSEBL & MPPMCL/MPSEB through WRPC.

PCKL had informed that they had once again requested vide letters dated 20.11.2018 & 21.12.2018 to MPPMCL to release the outstanding dues.

30.2 The status as on 30.11.2019 is as follows:

SR Constituents WR ConstituentsReceivable from Payable to

MPPMCL*(Rs.)

CSPDCL #(Rs.)

CSPDCL #(Rs.)

APTRANSCO / TSTRANSCO

1,21,76,270

KPTCL/PCKL 13,27,208KSEBL 1,21,47,260 7,05,279TANTRANSCO 1,17,17,268 92,77,878

* Madhya Pradesh Power Management Company Limited (MPPMCL) # Chhattisgarh State Power Generation Company Limited (CSPDCL)


30.3 SRPC vide letter dated 01.11.2019 requested MS, WRPC to arrange a meeting between WR & SR constituents to resolve the long pending outstanding payment issues.

Status may please be updated.

31. Pending payments between CGS and Beneficiaries

NPCIL vide letter dated 11.11.2019 (Annexure-XXX) intimated the following outstanding payments:

a) Delay in payment of the outstanding amount by beneficiaries:

Beneficiary Total dues including

surcharges (in Rs Crore)

Total dues including

surcharges for more

than 60 days (in Rs Crore)

Total dues including

surcharges for more

than 1 year (in Rs Crore)

Remarks

TNEB 1963 1376 330 The power is supplied to these beneficiaries from KKNPP, KAIGA and MAPS and details of outstanding due including surcharge are attached to the letter.

HESCOM 510 448 179TELANGANA 277 206 14

APTRANSCO 198 150 103

b) Opening of Letter of Credit

Beneficiary NPCIL Station

LC Amount (in Rs. crore)

Remarks

HESCOM KKNPP - HESCOM has not opened LC for the power supplied from Kudankulam

HESCOM KGS 6.33 HESCOM has only provided LC for 6.33 crore against requirement of 11 crore wrt power supply from KAIGA

32. Certification of non-ISTS Transmission lines

32.1 As per the provisions of CERC Regulations and as per the methodology approved in the 31st Meeting of SRPC held on 25.02.2017, SRPC Secretariat in consultation with SRLDC is certifying the non-ISTS lines carrying inter-state power for subsequent periods.

32.2 APSLDC had requested SRPC certification for non-ISTS lines carrying interstate power having more than 50 % utilization during the financial years 2014-15, 2015-16 and 2016-17 for filling petition before Honorable CERC/APERC.

32.3 The following had been noted in the 36th meeting of SRPC:


i. APTRANSCO had requested for certification for previous years with that they would approach CERC

ii. SRPC Secretariat had informed that the certification could be processed only for the subsequent period from the date of adoption of procedure by SRPC. POC rates could not be revised.

iii. SRPC Secretariat was suggested to look into possibility of certifying for previous period. STUs would approach CERC and as per CERC directive future course of action will be taken.

iv. POSOCO was requested to provide details to SRPC secretariat. NLDC stated that they would examine and revert back.

32.4 SRPC vide letter dated 24.09.2019 and 29.10.2019 had requested NLDC to provide the POC based data files for the year 2013-14, 2014-15, 2015-16 and 2016-17 to SRPC Secretariat.

32.5 TSTRANSCO Petition 2/TT/2019 on approval of transmission tariff for the TSTRANSCO owned Inter State Transmission Lines/System of the 38 Nos. natural Inter-State Transmission lines connecting Telangana and Andhra Pradesh States was heard by CERC on 08.08.2019.

32.6 APTRANSCO Petition 10/TT/2019 on approval of transmission tariff of the Inter-State transmission lines connecting two states for the APTRANSCO owned transmission lines/system as per the CERC’s order dated 5.9.2018 in Petition No. 07/Suo-Motu/2017 and order dated 21.6.2018 in Petition No. 237/TT/2016 for inclusion in POC was heard by CERC on 18.11.2019 and the Commission had reserved the Order.

NLDC/TSTRANSCO/APTRANSCO may update the status.

33. Extension of construction power supply to upcoming KKNPP units 3 to 6 from KKNPP- 1&2.

33.1 KKNPP-1&2 vide letter dated 14.11.2019 (Annexure-XXXI) has stated the matter regarding extension of construction power supply to upcoming KKNPP Units 3 to 6 from KKNPP-1&2 needed to be discussed and finalized in the upcoming SRPC meeting.

33.2 In view of the above, a Special meeting of Commercial Sub-Committee was held on 09 th

December 2019 (Record Notes of discussion available on SRPC website), wherein the following was agreed:

i. KKNPP may be allowed to avail construction power for KKNPP units-3 to 6 from the unit auxiliary Bus (6 kV) of KKNPP unit-2 along with the existing HT-131 (TANGEDCO) connection keeping in view the reliability and importance of the project.

ii. The following two options proposed for consideration:


a) Option-1: Drawal of construction power by KKNPP units-3 to 6 at 6 kV unit auxiliary bus of KKNPP unit-2 would be treated as the power drawn from TANGEDCO. The drawal point at 6 kV auxiliary bus of KKNPP unit-2 would be treated as drawal point of Tamil Nadu for actual drawal computation of TN from SR grid. KKNPP would make payment for energy drawn to TANGEDCO for the construction power drawn at 6 kV auxiliary bus and existing HT-131 connection at Rs.11/unit.

b) Option-2: Drawal of construction power by KKNPP units-3 to 6 at 6 kV auxiliary bus of KKNPP unit-2 would be treated as power availed from beneficiaries of KKNPP unit-2 (share allocation percentage) at the rate agreed between KKNPP and the beneficiaries of KKNPP unit-2.

iii. The drawal point (construction power) at 6 kV auxiliary bus of KKNPP unit-2 would be treated as outgoing feeder for computation of injection by KKNPP unit-2.

iv. TANGEDCO stated that any arrangement other than the existing HT-131 for construction power to KKNPP units 3 to 6 needed to be put up to their Higher Management for approval.

v. KKNPP agreed to furnish their views on the option- 2[6(ii)(b) above] to SRPC Secretariat by 20.12.2019.

vi. SRPC Secretariat would circulate the proposal submitted by KKNPP to all the beneficiaries of KKNPP units-1 & 2. The beneficiaries may communicate their comments/views on the proposal of KKNPP and on Option- 1 and Option - 2 to SRPC Secretariat by 10.01.2020.

vii. The accounting methodology for construction of power drawal by KKNPP units-3 to 6 along with the SEM requirement would be finalized in the ensuing Commercial Sub-Committee meeting.

The issue may please be deliberated and finalized.

34. Compliance status of Phase-I and Phase-II of Protection Audit Recommendations

34.1CERC, vide order dated 15.12.2016 in Petitions filed by KSEBL (88/MP/2016) and KPTCL (135/MP/2016) while granting last-chance time extensions to the SR Constituents for completing their respective Protection Audit Recommendations (PAR), had directed SRPC to monitor the status of completion of PAR regularly in PCSC meetings and submit bi-monthly report to the Commission confirming the completion of Phase-I and Phase II of PAR by the Constituents of Southern Region,. A summary table showing the compliance status of various SR Constituents as on 15.12.2019, based on the information furnished by various Constituents, is at Annexure-XXXII. The total compliance percentage of SR Constituents including IPP’s in completing Protection Audit Works as on15.12.2019 stands at 94.33%.

34.2All the SR Constituents are requested to complete the pending PAR at the earliest. The


IPP’s for whom there are pending PAR [viz., Spectrum PGL, Konaseema GPL, APGPCL Vijjeswaram (Stage-I & Stage-II) & LANCO-Kondapalli PL] are also requested to complete them at the earliest.

The status may please be updated.

35. Implementation of Protection Suite / Protection Management System (PMS) for Southern Region

35.1 Based on the approval of SRPC in the 26th meeting held on 20th December, 2014 at Visakhapatnam, implementation of Protection Management System in Southern Region [Web-based Management Software and Protection Setting Calculation Tool for Southern Region] has been undertaken through PSDF funding. The project has been awarded, through open bidding process, to M/s PRDC Pvt. Ltd. (PRDC) on 09.08.2017. The execution period for the Project is about 18 months from the date of placement of LoA (also called “Effective Date”), and is followed by an Extended Technical Services period of 5 years. The details of the project implementation including Milestone-wise status and the highlights of the project implemented so far are given at Annexure-XXXIII.

35.2 An interactive training session with the participation from all license holders (utilities who have been given the license of PSCT software of PMS project) is conducted on 20th, 21st and 22nd November, 2019 in Bengaluru.

35.3 Time extension has been sought from PSDF mentioning the reasons vide SRPC letters dated 31.05.2019, 22.07.2019 and 30.10.2019.

Put up for information please.

36. Compliance status of Protection Audit Recommendations

36.1 As part of GSC (Task-II) under Package-A, protection audit of 15 stations was carried out by M/s Tractebel Engineering (TE) in the southern region during the period, December, 2015–July, 2016.

36.2 Subsequently, protection audit of various stations in SR is also being regularly conducted by SRPC teams in line with CERC Order, dated 27.04.2015, in APTRANSCO’s Petition No.95/MP/2015 and CERC Order dated 14.05.2015 in TSTRANSCO’s Petition No.83/MP/2015 and Protection Audit of 16 stations have been carried out during the period December, 2016–July, 2019, accordingly.

36.3 APTRANSCO, TSGENCO, TSTRANSCO, KPCL, KPTCL, KSEBL, TANTRANSCO, Puducherry ED, NTPC (RSTPS), NPCIL, NLCIL, PGCIL (SR-I) & PGCIL (SR-II) are requested to kindly take suitable action to comply with their respective pending remarks.

The entities may please update the status.


37. Review meeting on compliance of PCSC recommendations

37.1 All trippings involving 220 kV & above system on account of mal-operation/ non-operation of protection systems in place are regularly discussed in the monthly held Meetings of Protection Coordination Sub-Committee (PCSC) meetings of SRPC with a view to identify their root cause and scrutinize correctness of operation of protection systems put in place by the concerned Constituents. In the process, appropriate measures required to be taken for system improvement are being suggested/ recommended for compliance by concerned Constituents.

37.2 PCSC had suggested / recommend appropriate measures, required to be taken for system improvement, for compliance by constituents concerned. The constituents were also requested to report the compliance/action taken on the suggestions/recommendations of the PCSC in the subsequent meetings. These PCSC recommendations, which are yet to be complied with, are circulated regularly, vide (i) Agenda & Minutes of PCSC meetings, and (ii) e-mails. However, in view of delay in complying with them, review of their compliance status was undertaken in the 84th

meeting of PCSC held on 26 -27 June, 2019 at SRPC Secretariat, Bengaluru to ascertain their current status of implementation by various Constituents.

37.3 The detailed status of pending implementation of PCSC recommendations has been compiled and available on SRPC web site (Annexure to MoM of PCSC). It was requested that concerned Utilities may kindly take concrete and definite action in complying with the pending PCSC recommendations.

37.4 In this regard, the following punch-points, which ensure healthiness of protection systems put in place, are brought to your attention for kind implementation:

i. Provision of Numerical Relays for protecting transmission lines, transformers, line/ bus reactors & busbar at 220 kV & above voltage level, and generating units at all voltage levels

ii. Ensuring time-synchronization of various Protection Relays with GPS at all 220 kV & above stations

iii. Configuring Disturbance Recorder (DR) and Event logger (EL) for all requisite/ mandated protections & signals

iv. Ensuring multi-bus operation with zone-segregation at all 220 kV & above stations

v. Ensuring healthiness of DC system (Protection & Communication)

vi. Ensuring proper maintenance of transmission lines and adopting best O&M practices

vii. Ensuring earth-mat integrity & removal of DC leakage in the switchyard

viii. Adoption of stipulated Over-Voltage gradings for all 400 kV & above transmission lines

ix. Ensuring protection philosophy followed is in line with the Ramakrishna Committee guidelines.

x. Ensuring furnishing of tripping files (FIR/DR/EL/TR) within 24-hrs of the occurrence of a tripping event as per IEGC Regulation 5.2 (r) & regular attendance to PCSC meetings.



38. Conduction of Protection Audit of various 220 kV & above stations (substations as well as generation switchyards) in Southern Region

38.1Regional level protection audit of various 220 kV & above Stations (Substations as well as Generation Switchyards) were being conducted, albeit at a small scale, by different SRPC Teams (comprising members from different SR-Constituents), in line with CERC Order dated 27.04.2015, the matter of conducting protection audit of remaining large number of stations was discussed in detail by the Protection Coordination Sub-Committee (PCSC) of SRPC in the 80th meeting held on 20.12.2018 and subsequently approved in 35thSRPC meeting held on 02.02.2019.The meeting agreed formation of some regional groups, each consisting of members from various SR utilities.

38.2Accordingly, audit teams comprising of officers nominated from various utilities of SR have been formed. Protection Audit of 78 substations/switchyards stations was completed.

The recommendations of the audit teams are being forwarded to the respective utilities for necessary action.

The recommendations of the audit teams would be further deliberated in a special meeting of the Protection Coordination Sub-Committee for compiling the recommendations, which are to be necessarily implemented to comply regulatory provisions and also the Ramakrishna Committee Guidelines. The sub-committee would also seek timeframe for the implementation of such recommendations.

38.3 Details of stations, where protection audit was carried out, during the period October, 2019 to December 2019 are at Annexure-XXXIV.


39. IEGC related issues requiring attention/action

39.1 Automatic Demand Management Schemes (ADMS)

39.1.1 In line with clause 5.4.2 (d) of IEGC, Automatic Demand Management Scheme was to have been provided by all constituents. Revised logic at 49.85 Hz, Min DSM violation for 15 minutes had been implemented by all the States/UT.

39.1.2 ADMS with proper logic should in place at all times.

39.1.3 In the earlier Meetings, all states were requested to identify additional feeders which could be tripped through SCADA rotationally with load relief of (OD-Max dev limit). Any loads tripped under ADMS should be brought back only under the directions of SLDC keeping in view the frequency, overdrawal etc.

39.1.4 Number of incidents satisfying the existing logic is given below:


Month

Present settings as per IEGCFrequency < 49.85 Hz for 15 Min. and OD = Min DSM limit

No of instances

Meeting the freq. limit

No of instances

applicable to states

No of instances applicable to states

AP KAR KER TN TS

July 19 8 3 2 0 0 0 1Aug-19 14 6 2 1 2 0 1Sept-19 10 3 3 0 0 0 0Oct-19 4 1 0 0 1 0 0Nov 19 4 0 0 0 0 0 0

39.2 UFR and df/dt reliefs

39.2.1. Details of recommended, implemented, SCADA monitorable and actual relief being realized are shown in the Table below:

State AP TS KAR KER TN PUD SRRecommended MW A 2782 2965 3539 1179 4176 109 14750

ImplementedMW B 2802 3195 3611 1392 4116 109 15225

% B/A 101 108 102 118 99 100 103Mapped Quantum July

2019 MW C 1771 2282 3575 1392 3666 100 12786

% SCADA monitorable % C/B 63 71 99 100 89 92 84

Average Visible Relief in July 2019 MW D 1209 1890 1853 983 2946 111 8722

Wrt monitorable % D/C 68 83 52 59 73 103 52

Mapped Quantum August 2019 MW C 1771 2282 3575 1392 3666 100 12786

Average Visible Relief in August 2019 MW E 1093 2001 1872 825 2665 103 6623

Wrt Monitorable % E/C 68 83 52 71 80 111 68

Mapped Quantum September 2019 MW C 1771 2282 3575 1392 3666 100 12786

Average Visible Relief in September 2019 MW F 1128 2120 1956 892 2452 95 6642

Wrt Monitorable % F/C 64 93 55 64 67 95 52

Mapped Quantum October 2019 MW C 1771 2282 3575 1392 1666 100 12786

Average Visible Relief in October 2019 MW G 1121 1793 1494 891 2366 108 7772

Wrt Monitorable % G/C 63 79 42 64 65 108 61

Mapped Quantum November 2019 MW C 1771 2282 3575 1392 3666 100 12786


Average Visible Relief in November 2019 MW H 1253 1771 1482 964 2428 89 7682

Wrt Monitorable % H/C 71 78 41 69 66 89 60

39.2.2 In earlier Meetings, the following had been noted:

Visible relief to be improved. Validation of mapping and reliefs is being taken up periodically and discussed in

OCC. 39.2.3 In the 8th Meeting of NPC held on 30.11.2018, the following had been noted:

Regarding mapping of the feeders, after deliberation, it was agreed that each RPC would submit the details / progress of feeder mapping to NPC Secretariat on a regular basis (quarterly).

NPC Secretariat would work out a common approach for df/dt settings in all the five regions and bring the same in the next Meeting of NPC.

States/UT had been requested to improve the mapping and load relief to have a safety net always. 39.2.4 Review of UFR quantum and set points

In the 8th Meeting of NPC held on 30.11.2018, the following had been agreed:After deliberation, the committee, agreed for the AUFLS scheme with 4 stages and raising the frequency by 0.2 Hz viz. 49.4, 49.2, 49.0 & 48.8 Hz. The quantum for AUFLS would be reworked by NPC Secretariat based on the deliberation.

It was also decided that, NRPC may appoint a Consultant from their own resources as proposed by MS (NRPC) for studying the AUFLS scheme for Indian grid and submit the study report to NPC Secretariat within a time of six months. (Action: NRPC)

The revised load relief for AUFLS computed by NPC Secretariat would be discussed along with the report of Consultant appointed by NRPC (if available), in the next meeting of NPC which would be held in the month of May, 2019. (Action: NPC Secretariat)

Subsequently 9th NPC Meeting was held on 22.11.2019 at New Delhi and the minutes of the Meeting is awaited.

39.3 Restricted Governor Mode of Operation (RGMO)/FGMO of Generating Units

39.3.1 RGMO response is being reviewed in Sub-Committee / TCC/ SRPC Meetings.The following had been noted in the Meetings: Inadequate response was needed to be taken up by SLDCs with respective SERCs

in line with Hon’ble CERC Orders in respect of Petition No. 84/MP/2015 and 302/MP/2013.

Non-performance of generators under SRLDC control should be taken up by SRLDC with the respective generators.


It was noted that some of the generators were disabling RGMO without informing /concurrence from SLDC/SRLDC thus not complying with IEGC provisions.

SLDCs had been suggested to ensure that schedules are restricted to normative ex-bus generation. Generators had been suggested not to resort to VWO and maintain generation as per the coal quality/ system/machine parameters and keep margins for RGMO / FGMO with MI at all instances.

Need for testing of RGMO response at the field emerged since response was not meeting the requirements fully.

As per 5th Amendment to IEGC, gas stations above 50 MW Installed Capacity were also to come under RGMO/FGMO Operation w.e.f. 1st October 2017. Generators/SLDCs had been requested to take necessary action to comply with this Amendment.

FRC computations were also to be undertaken by the SLDCs in line with approved methodology of CERC.

All the generators had been requested by SRPC/TCC to improve their primary response which was becoming more significant with high RE ingress. SLDCs needed to sincerely peruse the performance of their generators within their Control Area and take up nonperformance with SERC. For Gas units (> 50 MW) RGMO compliance was required as per IEGC. The performance report of all the units was being communicated by SRLDC to CERC periodically.

39.3.2 Performance of RGMO is being analyzed in the OCC forum. Summary for Southern Region (state-wise details are given in Annexure-XXXV) for the incident on 01.11.2019 is given in the Table below:

Incident: Generation loss of approximately 1644 MW (as per SCADA data) in Akal-Ramgarh generation (Rajasthan) complex. Occurred at 11:17 hours on 01.11.2019. Frequency has dropped from 50.02. to 49.90 Hz during the incident.

RGMO Performance during the Event 01.11.2019 (source SRLDC)

HYDRO THERMAL TOTAL

Possible Actual Possible Actual Possible Actual %(MW) (MW) (MW) (MW) (MW) (MW)

AP 37.90 3.90 83.55 57.46 121.45 61.36 51%TG 59.80 17.80 62.18 64.36 121.98 82.16 67%

KAR 59.80 17.80 45.55 9.40 105.35 27.20 26%KER 20.70 9.00 0.00 0.00 20.70 9.00 43%TN 0.00 0.00 63.40 20.00 63.40 20.00 32%

CGS 0.00 0.00 298.60 190.34 298.60 190.34 64%SR 178.20 48.50 553.28 341.56 731.48 390.06 53%

39.4 Testing of Primary frequency response of generators as per IEGC clause 5.2(g)

In compliance of IEGC (5th Amendment) Regulations 2017, Clause 5.2(g), NLDC on


behalf of RLDCs has formulated a procedure for carrying out the primary response test. The regulation is as quoted below:“Provided that periodic checkups by third party should be conducted at regular intervals once in two years through agencies selected by RLDCs or SLDCs as the case may be. The cost of such tests shall be recovered by the RLDCs or SLDCs from the generators. If deemed necessary by RLDCs or SLDCs the test may be conducted more than once in two years”

NLDC had addressed a letter in this regard to Hon’ble CERC. As per Procedure a pre-bid Meeting was held at NLDC on 24.10.2018 with interested agencies. Generators had been identified in SR and communications had been sent to all generators. In the testing, SLDCs and RLDC would be involved. SLDCs were requested to kindly take appropriate action for generators in their control area.

In 162nd OCCM (10.12.2019), SRLDC had informed that deviation bids of three agencies had been opened. There were some queries by the bidders which have been replied by NLDC. The price-bid will be opened by end of December 2019.

39.5 Sudden Change in Demand/Frequency Excursion (Clause 5.2 (j) of the IEGC)

There were instances of sudden load changeover and State SLDC had been requested to take up with Discoms for staggering of load changeover. It was noted that the changeover needs to be analyzed by SLDCs for corrective action.

Necessary action was sought in respect of demand and generation management as well as power purchases, so that clause 5.2 (j) of IEGC Regulations is not violated.

States/generators are requested to kindly comply with IEGC provisions in this regard.

39.6 Arranging of interruptible loads in four groups

As per IEGC, to maintain the frequency within stipulated band and also ensure network security, interruptible loads are to be arranged in four groups of loads. This was for the purpose of scheduled power cuts/load shedding, loads for unscheduled load shedding, loads to be shed through UF relays, df/dt relays and loads to be shed under any SPS Scheme. These loads are to be grouped in such a manner that there is no overlapping between different groups of loads.

Existing schemes were not meeting Regulatory requirement fully and further action is required in this regard. Constituents had been requested to ensure necessary compliance.States are requested to kindly comply with IEGC provisions fully in this regard.

39.7 PSS Tuning

7th Meeting of PSS tuning was conducted on 14 th November 2019 and MoM is available at SRPC website. Schedule of PSS / SRT was finalized and generators are requested to adhere to the schedule. PSS Study group had analyzed the Step Response Test Reports for the generators which had furnished the reports and recommendations had been finalized. It had been kindly requested that necessary action may be taken as finalized in the PSS Meetings.


39.8 Relocation of SPS schemes

A comprehensive Report on the SPSs to be relocated had been finalized in 77th

Meeting of PCSC. The status is as follows:

PGCIL SR-I & SR-II had confirmed that all the new DTPCs have been commissioned at the identified locations (in 152nd OCC).

In KPTCL system, some works to be completed. SRLDC had requested all to furnish the signal wiring diagram- where the signal is

received from PGCIL and to where it is extended. (SR I and SR II submitted) The following activities to be carried out: Carryout the pending works (refer Annexure No.V of 77 PCSC MOM). Carryout the mock drills in coordination with PGCIL and SRLDC. Carryout the mapping of the feeders in coordination with SRLDC. Furnish the revised list of feeders along with load reliefs under various SPS.

Constituents had been requested to communicate the compliance report in this regard to SRPC / SRLDC.

In the 162nd OCCM (10.12.2019), SR-II had pointed out that two convertors were required for each link to extend the signal from control room to Kiosk in SAS stations. OCC had recommended that the cost of the convertors and associated cable etc could be booked in the project cost. TCC/SRPC may approve the recommendation.

39.9 SPS for Raigarh - Pugalur HVDC

SRLDC had informed that they had discussed the SPS for Raigarh – Pugalur HVDC bipole link with NLDC. Initially the identified load reliefs of Talcher-Kolar and other SPS could be utilized for Raigarh-Pugalur also and later new load reliefs could be identified.

In 162nd OCCM (10.12.2019), it was noted that SRLDC would come out with details (specified documentation) on SPS for Raigarh – Pugalur HVDC bipole link.

39.10 Reserve Shutdown

A Meeting on Reserve Shutdown (RSD) issues was held on 26 th September 2019 at SRPC, Bengaluru (MOM available on SRPC website). A procedure to take care of entitlement/scheduling/compensation during RSD was finalized in consultation with stake holders. SRPC vide letter dated 30.10.2019 (Annexure-XXXVI) enclosing the MOM had requested Hon’ble CERC to consider the procedure recommended by SRPC forum.

39.11 Conversion of forced outage of generating Unit to Reserve Shutdown (RSD)

In the 162nd OCC meeting, it was noted that forced outage of a unit may be converted to RSD by a generator keeping in view the ramps and the status of the unit (hot, warm and cold conditions as per the declaration). This should be done by the changes in DC and it should be demonstrable and schedulable.

39.12 Shutdown request of NTPL-Tuticorin D/C line


PGCIL vide letter dated 30.07.2019 had informed that M/s Southern Railway had approached PGCIL for diversion of 400 kV NTPL-Tuticorin D/C line in view of the crossing of new Broad Gauge line “ Milavittan - Melmarudur” near Tuticorin area. Accordingly PGCIL is taking necessary action for awarding the works. The shutdown of 400 kV NTPL-Tuticorin D/C line is required for 3 weeks during second half of October 2019 (two towers to be erected in the existing corridor to divert the line). Subsequently, a site visit followed by a special meeting at NTPL, Tuticorin was held on 27.08.2019 to facilitate the shutdown.

In 160th OCCM revised procedure was finalized with complete evacuation on ERS while 230 kV TANTRANSCO connectivity was required only to meet the Auxiliary loads and for injection upto permissible limit as would be decided by SRLDC. TANTRANSCO vide letter dated 30.10.2019 (Annexure-XXXVII) had communicated their concurrence for the shutdown under certain terms and conditions.

SR-II, PGCIL had informed that the matter had been referred to the management.

The following had been noted in the OCC meetings:

The compensation issues should not be linked with the shutdown approvals in OCC. OCC was a technical forum where issues of ATC curtailment, line loadings, injection restrictions, load generation balance, precaution during shutdown etc are discussed. Compensation issues, if any, could be taken up to TCC/SRPC through commercial committee meetings.

230 kV TANTRANSCO lines were evacuation lines of NTPL as agreed in the 22nd

& 24th Standing Committee Meetings held in 2006. TANTRANSCO had stated that as per 38th Standing Committee Meeting, 230 kV connectivity was not part of ATS for NTPL power evacuation. The issue of 230 kV connectivity of NTPL was discussed in the Joint Study Committee Meetings held on 21st and 22nd November 2019 at New Delhi wherein, the following was noted:

Upon examination of the minutes of the 24th meeting of SCPSPSR, it was found that following transmission system had been agreed as the evacuation system for Tuticorin TPS JV (2x500 MW):

i) Tuticorin JV TPS – Madurai 400 kV D/c quadii) 2x315 MVA 400/220 kV ICT at Tuticorin TPS JViii) LILO of 2 nos. of 230 kV circuits at Tuticorin TPS JV

Accordingly, the referred 2 nos. of 230 kV circuits at Tuticorin TPS JV is a part of ATS.

TANTRANSCO hstated that the referred 230 kV lines cannot be utilized for the evacuation of power from Tuticorin JV (2x500 MW) as the same leads to congestion in the downstream network. Towards this, it was decided that the referred 230 kV lines may be by-passed through suitable arrangement under normal operation to avoid congestion in downstream networks and the same may be utilized for drawl of start-up power whenever required. Further the


proposal shall be put-up in the upcoming SRSCT for approval of the constituents.

NLDC in its operational feedback for July to Sep 2019 had highlighted the restoration of 230 kV connectivity as in case of any major outage in the 400 kV network or during black-start, the 230 kV system is not available and pose a major constraint.

39.13 Shutdown of Talcher-Kolar HVDC link

Chairperson, SRPC vide letter dated 14th February 2019 had requested CMD, PGCIL to issue necessary instruction for outage of HVDC Talcher-Kolar to be availed before 20 th

December every year. In the 36th SRPC meeting, PGCIL had confirmed that the shutdown was planned before 20th December 2019 (29.11.2019-02.12.2019). The terminal and line activities have been coordinated in all regions/HVDC terminal stations.

It may please be noted that PGCIL had again scheduled the shutdown from 09.01.2020 to 13.01.2020 despite the commitment given by PGCIL in SRPC meeting.

39.14 Other Issues requiring attention of TCC / SRPC

Following issues which are being followed up in the Meetings of Sub-Committees of SRPC also merit kind attention:

i) SRLDC vide letter dated 06.08.2019 had issued directions provisioned under Section 29(1) of the EA in respect of RE scheduling/curtailment. Any curtailment along-with reason was to be made known to RE generator/SRLDC in writing and through SLDCs website. AP & KAR SLDC were uploading RE curtailment details on their website. TSSLDC and TNSLDC were communicating the details to SRLDC on daily basis.

ii) As per clause 42(3) CERC (Terms and Conditions of Tariff) Regulations, 2019, the hours of Peak and Off-Peak periods during a day shall be declared by the concerned RLDC at least a week in advance. The High Demand Season (period of three months, consecutive or otherwise) and Low Demand Season (period of remaining nine months, consecutive or otherwise) in a region shall be declared by the concerned RLDC, at least six months in advance. In the 160th OCC Meeting, SRLDC had informed that the months, April 2020, February 2021 and March 2021 had been notified as high demand season. For defining peak and off peak hrs net demand (demand – RE) was under consideration.

iii) A special meeting was held on 14.10.2019 to discuss scheduling and accounting issues of M/s Betam Wind Energy Pvt. Ltd. (BWEPL) (MOM available on SRPC website).

iv) The guidelines and standards for charging infra-structure for electrical vehicles issued by MoP on 14.12.2018 had been modified by incorporating comments from stake holders and the modified guidelines and standards are issued by MoP vide communication dated 01.10.2019.

v) A brainstorming session on Regional Level Wind & Solar Forecasting System and


Grid Compliance of CEA Connectivity Regulations was held by NIWE at SRPC, Bengaluru on 30.08.2019.

vi) In 161st OCCM, regarding repair of ICT, UPCL informed that the ICT was expected to reach the site by end of December 2019 and the charging was expected by 15th

January 2020. KPTCL had informed that they have taken up with PCKL regarding DC to UPCL during the outage of ICT.

vii)Regarding taking over of 2 Nos of bays at Edamon in respect of Kayamkulam-Edamon D/C line due to replacement of existing conventional equipments with Hybrid switch gear modules at 220 kV S/s, Edamon (Edappon and Kundara bays) under PSDF scheme by KSEBL, in the 160th OCC Meeting, KSEBL had informed that Board approval is still awaited and there are some queries regarding estimated cost furnished by PGCIL. It was clarified to KSEBL that the CERC approved cost through Petition only will be the final.

viii) Regarding Simhadri Islanding scheme, in the 162nd OCCM, APTRANSCO was requested to furnish the lines to be opened and the generation (IC / generation considered) for the island formation SRLDC/ SRPC would study and would suggest implementation.

ix) Regarding Ramagundam Islanding scheme, in the 162nd OCCM, it was agreed that TS (study team & SLDC) SRLDC & SRPC would discuss the Ramagundam islanding Scheme in a separate meeting in the first week of January 2020.

x) CE(RPM) division, CEA vide letter dated 03.06.2019 had requested for the details - "Energy Scheduled inside the region and outside the region from RE generating station which has been given connectivity & LTA on Green Energy Corridors (both Central & State)". Installed capacity, schedules and actuals in respect of WPDs/SPDs connected to Sub stations under Green Energy Corridor needed to be furnished from April 2019 onwards.

xi) CEA vide letters dated 07.08.2019, 22.08.2019 & 10.10.2019 had requested that the information pertaining to all wind power generators connected to the grid at 66 KV and commissioned after 15th April 2014 may be provided in the prescribed format along with soft copy on [email protected]/ [email protected]. CEA had informed that the data was pending from APTRANSCO, KPTCL and TANTRANSCO. It was informed by CEA that if the states are failing to furnish the information before 30.10.2019, regulatory action may be initiated.

xii)CEA had communicated that a draft report on Optimal Generation Capacity Mix for the year 2029-30, which was on public domain for comments of stakeholders. One of the comment received was regarding change in Load pattern (8760 hours) due to the shift of agricultural load from peak time (usually night time to afternoon time when solar is available) by many states. To analyze the impact the following data is required at stage/regional level:

a) Hourly regional load data (in MW) of 8760 hours for the last 3 years.b) Year-wise, state-wise hourly agricultural load data (in MW) of 8760 hours for


the last 3 years for the states which have witnessed the shifting of Agricultural electrical load from peak to off peak hours over the last few years.

xiii) MoP had desired for information regarding existing transmission system (220 kV and above, AC and DC Voltage level) in the country as on 31.03.2019. CEA had already prepared the same and is available on the Link https://bit.ly/33qsbgN. CEA vide letter dated 11.10.2019 had requested States(STUs) and PGCIL to update/correct the information in the file available at the above link. It was also requested to furnish the State power map and single line diagram of transmission network (to be submitted by States) and regional level power map (to be submitted by Powergrid). It was noted that SR I & SR II had furnished the details. States were requested to update and upload the sought information. SLDs & Power map are to be submitted separately.

xiv) In the OCCM, SRLDC had stated that the details of complete outage of 220 kV and above SS was not being received at SRLDC. The same needed to be intimated to the control room of SRLDC.

xv) Point to point mock exercise for black start to be conducted biennial by all constituents and report to be submitted to SRLDC / SRPC.

xvi) Periodical outages of Guttur (vital node for KGS evacuation), Kemar and UPCL (Mangalore loads) substation in KPTCL system was noted with concern. KPTCL had been requested to look into reliability issues.

xvii) MEPL Petition No. 347/MP/2019 seeking permission for extension of the period for injection of infirm power for commissioning and testing of phase II (unit III) for further period of six months i.e. from 01.07.2019 to 31.12.2019 was heard on 29.10.2019 and on 25.11.2019 and the Commission had directed the Petitioner to file the affidavit by 3.12.2019 seeking instruction from Resolution Professional.

xviii)NLCIL had informed their non-willingness to participate in SCED for the period from 01.10.2019 to 31.03.2020.

xix) KPCL had informed that Ghataprabha Dam Power House was affected by flood and was brought to safe shutdown on 07.08.2019.

xx) In 158th OCC meeting (09.08.2019), it was noted that NTECL had claimed deemed DC for the generation loss on account of coal shortage as procurement of coal could not be done due to non-payment of energy charges by beneficiaries. Beneficiaries had pointed out that NTECL need to take out action as per PPA clause and as per extant regulations. Off Bar DC under such circumstances were not acceptable to them. NTECL beneficiaries, SRLDC and SRPC stated that Off Bar DC would be allowed as per CERC approved RSD procedure.

xxi) APTRANSCO vide letter dated 25.07.2019 had requested MoP to allocate additional power of 128 MW available as unallocated power in Kaiga GS (stage I & II). It was submitted that AP is facing severe shortage of around 600 MW due to coal shortage in APGENCO Thermal Stations. At present AP is getting firm allocation of 109.75 MW from Kaiga GS @ Rs. 3.649/unit as per PPA.


xxii) NTPC vide letter dated 14.07.2019 had communicated that NTPC Southern Region OS Control room, which was working round the clock at SR Headquarters, Hyderabad will discontinue its operation wef 15.07.2019. Subsequently NTPC vide letter dated 26.07.2019 further informed that in order to remove difficulties in coordinating with individual stations by respective RLDCs/SLDCs on daily (24x7) basis, it has been decided to carry out all the functions of RCCs by centralized Operation Monitoring Centre (OMC) from New Delhi. However, participation in OCCM (Operation Coordination Committee Meeting), PCCM (Protection Coordination Committee Meeting) and other forums including coordination for compliance of issues related to NTPC generating units will continue to be done by our respective Regional offices.

xxiii)A meeting was held at MNRE on 05.04.2019 to discuss Renewable Energy Generation Data Management, wherein it was decided that a committee comprising representatives from MNRE, MoP, POSOCO, specific SLDCs and RPCs and to be chaired by the Member (Planning), CEA may look into following issues:

a) Determining the present gap in RE generation data collection

b) Support required for creating an institutional mechanism at CEA

c) Framework for collection of inter-state Sale and purchase of RE power

d) Factoring of REC data in overall mix of RE generation data

e) Mechanism for collection of RE data on monthly basis and real time data

The 1st meeting of the Committee was held 10.07.2019 at CEA, New Delhi (MOM dated 09.09.2019 enclosed as Annexure-XXXVIII).

xxiv) CERC has constituted an Expert Group under the Chairmanship of Sh. Rakesh Nath, Ex-Chairperson CEA, Ex-Member (APTEL) to review the IEGC. The other Members of the Expert Group are Sh. A. S. Bakshi, Ex-Chairperson CEA/Ex-Member, CERC and Sh. Ravinder, Ex-Chairperson CEA, POSOCO and CEA are also represented in the Expert Group and Chief Engineer (Grid Management) has been nominated by Chairperson, CEA, to the said Expert Group. The Expert Group had held number of deliberations with the stakeholders.

xxv) PGCIL Petition No. 31/MP/2019 along-with IA Nos.18/2019 and 60/2019 for issues under DSM Regulations was heard on 09.07.2019 by CERC. The Commission reserved order in the Petition and IAs.

xxvi) NTPC Petition No 368/GP/2019 for determination of project specific levelised tariff for 100 MW floating Solar Photo Voltaic Plant at water reservoir of Ramagundam STPS Telangana was heard on 25.11.2019. Matter shall be listed in due course.

xxvii) NTPC Petition No 341/GT/2019 for determination of project specific levelised tariff for 92 MW floating solar Photo Voltaic Plants in two phases (first phase 22 MW and second phase 70 MW) at Rajiv Gandhi Combined Cycle Power Project (RGCCP), Kayamkulam, Kerala was heard on 25.11.2019. Matter shall be listed


in due course.

xxviii) In UPCL Petition No 346/MP/2016, Hon’ble Commission in its Order dated 20.11.2019 has stated:

‘Due to revised environmental norms notified by MoEF&CC in 2015, the Petitioner has to augment its FGD capacity as the notification stipulates stringent emission norms to be measured at stack level.

As regards the remaining prayers of the Petitioner regarding requirement of additional capital and operating expenditure, suitable mechanism of compensation, recovery of capacity charges during shut down period and recovery of cost incurred in start-up fuel during implementation of environmental norms, the Petitioner is directed to implement the revised norms in consultation with CEA and approach this Commission for determination of increase in cost and/or revenue expenditure on account of implementation of revised norms in accordance with the Guidelines to be issued by CEA and the mode of recovery of the same through monthly tariff. Accordingly, the Petitioner is directed to approach the CEA to firm up the technology to be used for installation of FGD and for compliance with revised environmental norms as stipulated by the 2015 MoEF&CC Notification.’

xxix) CERC in its order dated 01.11.2019 in Petition No 367/TT/2018 for determination of Transmission tariff from DOCO to 31.3.2019 for Salem Pooling Station – Madhugiri Pooling Station 765 kV S/C Line (initially charged at 400 kV) along with associated Bays & equipments at Salem PS and Madhugiri PS and 400 kV 63 MVAR line reactor at Madhugiri end only of the Salem Pooling Station – Madhugiri 765 kV S/C Line (Initially charged at 400 kV) under Common System Associated with Coastal Energen Private Limited & Ind-Bharat Power (Madras) Limited LTOA Generation Projects in Tuticorin Area – Part-B” in Southern Region had stated, ‘………the Transmission Charges for the asset covered in the instant petition shall be recovered on monthly basis in accordance with Regulation 43 of the 2014 Tariff Regulations. The billing, collection and disbursement of the transmission charges approved shall be governed by the provisions of Central Electricity Regulatory Commission (Sharing of Inter-State Transmission Charges and Losses) Regulations, 2010, as amended from time to time.’

xxx) PGCIL (SR- I) had expressed concern regarding the non -payment from NTPC Simhadri for the LDP relays procured by Powergrid from M/s GE on behalf of NTPC (as recommended by sub committees of SRPC). NTPC requested SR I to furnish the details in this regard and the issues may be solved bilaterally.

xxxi) The criteria for categorizing the units / transmission elements under prolonged outage were finalized in the 162nd OCCM (10.12.2019). Generating units: 5 days after forced outage and 5 days after the scheduled revival in case of planned outages. Transmission elements / lines: 2 days after forced outage and 2 days


after the scheduled revival in case of planned outages

40. Compliance of CEA Regulations for grid connectivity of Renewable Energy Sources

CEA vide letter dated 12.04.2017 and 08.05.2017 (enclosing MoP letter dated 06.04.2017) and in Special Meetings held on 28.06.2017, 11.09.2017, 25.10.2017 & 04.05.2018 had observed that it was obligatory for all grid connected renewable generators to provide necessary facilities for data communication and data storage and other parameters as may be stipulated. The following is updated status with regard to availability of RE SCADA:

State SCADA availability as on 30.11.2019 Mapped Vs I/C

Remarks

AP Wind: 4079/3992MW (98%)Solar: 3233/2970 MW (92%)Total: 7312/6962 MW (95%)

Pending SCADA availability was for RE connected distribution level and for which action had been taken for compliance.

KA Wind: 4795/4775 MW (99.6%)Solar: 6404/5851 MW (91%)Total: 11199/10626 MW (95%)

KE Wind: 70/27 MW (38%)Solar: 95/87 MW (92%)Total: 165/114 MW (69%)

TN Wind: 9196/8768 MW (95%)Solar: 3837/648 MW (17%)Total: 13032/9416 MW (72%)

TS Wind: 100.8/100.8 MW (100%)Solar: 3495/3475 MW (99%)Total: 3595/3575 MW (99%)

Action for balance SCADA availability at 33 kV and below was being followed up and notices had been issued.

SR Wind: 18241/17663 MW (97%)Solar: 17063/13030 MW (76%)Total: 35304/30692MW (87%)

States were requested to kindly furnish the information in a time bound manner.

41. Scheduling of Solar Park

41.1SRLDC vide letter dated 29.08.2018 had requested constituents to revert back on the details regarding the commissioning cum COD status of RE parks /projects in their control area to SRLDC/SRPC). AP was to specifically revert back on Ghani and Uravakonda and TN on Kamuthi. It was noted that Ghani was an approved Solar Park under Solar Park Scheme of MNRE.

41.2 The following had been noted in the 36th SRPC meeting:

KPTCL had informed that scheduling of Pavagada Solar Park by SRLDC could be commenced by December, 2019.

APTRANSCO had informed that scheduling responsibilities Ghani Solar Park were


under review.

41.3 Scheduling of Pavagada Solar Park

In line with the Regulation 6.4.2(b) of CERC (Indian Electricity Grid Code) Regulations, Procedure for implementation of the frame work for RE Generating Stations and other relevant Regulations, the scheduling of Pavagada Solar Park by SRLDC was discussed in the following Meetings:

SN

Meeting &Date Deliberation /Decision

1 Special Meeting convened by SRLDC on 28.08.2018.

Agreed to discuss further in the next meeting.

2 Special Meeting convened by SRLDC on 03.09.2018.

Agreed to discuss further with SPDs.

3 Special Meeting convened by SRPC on 04.10.2018.

Decided that scheduling and dispatch of Solar Power Park by SRLDC wef 15.12.2018.

4 Review Meeting convened by SRPC on 02.11.2018.

Decided that scheduling and dispatch of Solar Power Park by SRLDC wef 15.12.2018.

5 147th to 159thMeetings of OCC Followed up6 40thMeeting of Commercial Sub-

Committee held on 25.02.2019KSPDCL assured that works would be completed by May 2019.

7 41stMeeting of Commercial Sub- Committee held on 20.06.2019

KSPDCL had assured that works would be completed within three months (Sep. 2019)

8 35th& 36th Meetings of SRPC Reviewed the status9 Special Meeting convened by

SRPC on 19.09.2019.Agreed to schedule the SPDs connected to substations 3,4&5 by SRLDC w.e.f.04.11.2019. Mock exercise from 07.10.2019.

10 Solar Park Visit/Meeting on 27.09.2019

Readiness of Substations 3,4,&5 was assessed.

11 Review meeting held on 16.10.2019

Agreed that substation 3, 4 & 5 would be put on actual scheduling and accounting from 04.11.2019


Agreed that scheduling by SRLDC for LTA operationalized SPDs (1000 MW) would commence from 30.12.2019


Agreed that the required SEMs for the entire park would be made available by 27.12.2019


It was agreed that scheduling by SRLDC for LTA operationalized SPDs (1000 MW) would commence from 13.01.2020

15 Review meeting scheduled on 10.01.2020

Scheduling of M/s Soft Bank (SPD of Pavagada Solar Park) by SRLDC commenced under LTA to UP from 30.12.2019.

41.4 Scheduling of Ghani Solar Park


Prayatna Developers Private Limited (PDPL) Petition No. 342/MP/2019 invoking Regulation 1.5(iv) read with Regulation 5.2(u) and Regulation 6.5(11) of the CERC (IEGC) Regulations, 2010 for enforcement of must run status granted to solar power project and Regulation 111 of the CERC (Conduct of Business) Regulations, 1999 seeking direction to SLDC to stop issuing backing down instructions to the Petitioner was heard on 29.10.2019. The Petition was heard on 25.11.2019 in which APSLDC was directed to submit on affidavit by 11.12.2019 the reasons for backing down instruction issued to the Petitioner and the actual generation loss, with an advance copy to the Petitioner, who may file its response, if any, on affidavit by 18.12.2019. The Commission also directed the Respondent, NTPC to file its reply on affidavit by 11.12.2019 with an advance copy to the Petitioner who may file its rejoinder on or before 18.12.2019.

42. Upcoming Renewable Projects and their integration with transmission network

In earlier Meetings it was noted that RE schemes are getting modified at times while some are getting dropped also. TCC had suggested that the RE Projects/evacuation schemes may kindly be reviewed and updated status communicated. It was observed that timely progress on these schemes needs to be communicated to SRPC Secretariat, being a critical issue monitored by various bodies. The entities were requested to furnish monthly updates to SRPC Secretariat.

43. Regular Interaction between CERC and RPCs

CERC vide letters dated 16.04.2019 had communicated that CERC desires that there should be regular interaction between CERC and RPCs to understand perspectives of RPCs with respect to various Regulations of CERC. Commission had decided that a Meeting with Chairman & Member Secretaries of each RPC shall be held every quarter at CERC, New Delhi. The record notes of the 1st meeting held on 24.06.2019 were issued by CERC staff vide letter dated 14.08.2019 (Annexure-XXXIX).

44. Amendment in CERC (Deviation Settlement Mechanism and related matters) Regulations

44.1 Fifth Amendment Regulations 2019: Fifth Amendment Regulations, 2019, notified on 28.05.2019, came into force with effect from 3rd June 2019.

44.2 As agreed in the 36th SRPC meeting, Chairperson, SRPC vide letter dated 25.07.2019 (Annexure-XL) addressed to Chairperson, CERC had taken up the issues of implementation of the existing regulation (12 block sign change) with effect from 1.1.2019 instead of 03.06.2019. Further the 12 block sign change along with penal block charge could be continued even after 31.03.2020.

44.3TSTRANSCO vide letter dated 23.12.2019 (Annexure-XLI) had suggested the


continuation of deviation of sign change violation count and additional charges after 31.03.2020 and the following could be addressed to Hon’ble CERC after deliberation in the meeting:

Continuation of the number of time blocks as 12 time blocks for counting sign change as there is no much impact on system operation on account of this sign change.

Continuation the additional charges for deviation of sign change violation as existing ie 10% of the time block DSM changes.

45. Terms of Reference for Renewable integration – Task Force

45.1 Chairperson, SRPC vide letter dated 12.12.2017 addressed to MNRE had proposed that certain specific studies could get initiated under IGEN – GEC Project being implemented by GIZ in India on behalf of the German Federal Ministry of Economic Cooperation and Development (BMZ).

45.2 The scheme on ‘Dimensioning of Control Reserves in Southern Region Grid States’ has been awarded to M/S DNV-GL by M/s GIZ.

45.3 Terms of Reference (TOR) covers the scope and deliverables to develop the methodology for reserve dimensioning and actual dimensioning of different types of reserves for each of the State in Southern India (barring the Union Territory of Puducherry) by 2022. The following are the main tasks of this assignment:

a) Identification of types of reserves required at southern State and/or regional level b) Detail out a methodology for reserve dimensioning c) Reserve dimensioning using appropriate simulation method for 5 southern Indian

States d) Investigate the reserve sharing potential by southern region States

Status update: A Result Dissemination workshop was convened by M/s GIZ / DNVGL on 01.10.2019. The draft report(s) had been furnished by M/s GIZ and circulated to SR constituents for comments. The final report has been finalized after considering the inputs of constituents.

45.4 Scheme ‘Controlling power generation and ancillary services from RE (Wind and Solar) generators’ has been awarded to German company “Energynautics” by M/s GIZ. The following is the TOR of the scheme:

Work Package 1: Technical Survey of existing wind and solar generators. Under this work package four main tasks are needed to be performed:a) Identification of technical capabilities of existing solar and wind generators for

controlling power output.

b) Study technical capabilities of existing solar and wind generators for providing ancillary services.

c) Study retrofitting options available for enabling power generation control and ancillary services.

d) Study existing communication infrastructure for implementing generation control


and ancillary services from wind and solar generators.

Work Package 2: Policy and regulatory framework on power generation control and ancillary services from wind and solar generators. Under this work package three main tasks are needed to be performed:

a) International best practices on policy framework and grid codes for controlling power output and providing ancillary services from wind and solar generators.

b) Suggestion on regulatory, grid code related interventions required for implementing power control from solar and wind generators.

c) Suggestion on regulatory, grid code related interventions required for implementing ancillary services from wind and solar generators.

A kick-off Meeting was conducted on 20th December 2018 with participation from M/s Energynautics, M/s GIZ, SRLDC & SRPC.

Status update: A Result Dissemination workshop was convened by M/s GIZ on 06.11.2019. The draft report(s) had been furnished by M/s GIZ and circulated to SR constituents for comments.

46. Opening and maintaining of adequate LC as payment security mechanism under PPAs by Discom

As discussed in the 36th SRPC meeting, Chairperson, SRPC vide letter dated 16.07.2019 (Annexure-XLII) had taken up the issue with Secretary (Power), MoP to look into the concern of SR power utilities. MoP reply dated 01.08.2019 is enclosed at Annexure-XLIII. The following orders / correspondences merit attention:

SN Order / Correspondence Description1 MoP Order dated 28.06.2019 Mandatory for distribution licensees to open and maintain

adequate Letter of Credit (LC) as Payment Security Mechanism under Power Purchase Agreements. Distribution Licensees are required to open and maintain adequate Letter of Credit (LC) as Payment Security Mechanism under Power Purchase Agreements from 1st August, 2019.

2 MoP OM dated 17.07.2019 Procedure devised for Scheduling of Power to Distribution Companies in the event of non maintenance of Letter of Credit.

3 MoP OM dated 17.07.2019 -Corrigendum to the MoP Order dated 28.06.2019

SLDC also included along-with NLDC & RLDC.Shorter duration LC. Advance through electronic mode

4 MoP OM Order dated 28.07.2019 communicated some clarification on Order dated 28.06.2019

State owned generators are not covered in this Order and the bill payments of the state owned generators may be as decided by State Governments

5 SRLDC letters dated 25.07.2019 and 28.07.2019

Meeting held at SRLDC on 29.07.2019. Procedure for implementation of the same was also enclosed

6 MoP OM dated 30.07.2019 All concerned entities may ensure compliance of the said Order in letter of spirit w.e.f 01.08.2019.Scheduling of power by the concerned agencies


should take place appropriately. It is also requested that POSOCO shall take regular review of the compliance of the said Order and the status may be updated to MoP.RPCs also to review with RLDC & SLDC.

7MNRE vide OM dated 31.07.2019

Furnished clarification regarding the fixed charges payable in case of non-dispatch of power in specific cases w.r.t Solar and Wind Generators.

8 MNRE vide OM dated 05.08.2019

Further clarified the matter in respect of the letter dated 31.07.2019.

9 MoP OM dated 09.08.2019 Communicated to POSOCO to issue directions under Section 29 of EA. Under Section 33(3) SLDC to comply to directions of RLDC.. SLDCs to furnish daily status Report.

10 MoP OM dated 09.08.2019 –clarification

Unconditional LC to be opened by Discoms.LDCs to get confirmation from Discoms.LC equal to power purchase requirement for billing cycle

11 SRLDC letter dated 10.08.2019 to SLDCs

Compliance of MoP Order dated 28.06.2019 andsubsequent amendments & clarifications. Daily and weekly reports to be furnished by SLDCs.

12 SRLDC communication dated 06.09.2019 to all SLDCs

It is required to furnish the LC details of all Intra-State entities, present energy being scheduled per day as per available PSM (Payment Security Mechanism). The information needs to be furnished on daily basis to SRLDC ([email protected]).

13 SRLDC letter dated 03.09.19 to APSLDC & reminder letter dated 04.09.2019

Regarding implementation of Payment Security Mechanism based scheduling of power at Intra-state level. IWPA letter dated 02.09.2019 requesting for appropriate actions against distribution licensees for non-opening of Letter of Credit ("LC") by AP DISCOMs) in favor of wind energy generators was also enclosed.

14 SRLDC letter dated 07.09.2019 to SLDCs (enclosing MNRE letter dated 06.09.2019)

Regarding the LC to be provided by DISCOMs to various Wind and Solar Plants. MNRE had stated that ‘in spite of provisions in place in PPAs DISCOMs have not provided LC to various Wind/Solar developers as indicated in reports’. SLDCs to comply MoP Orders regarding LC and furnish the action taken report by 10.09.2019.

47. Support of RE generators for reactive compensation

47.1 In earlier Meetings, the following had been noted:

i) KSEBL- Draft Grid Code had been released in which there is a chapter covering the aspects of reactive power management of RE. Public hearing was held in last week (29th October 2019) at Thiruvanthapuram. Public hearing would be held at Kochi and Kozhikode also.

ii) KPTCL- Review Committee on KEGC had suggested reactive power exchange by RE generators based on voltages with incentive or disincentive. The same has been submitted to KERC. KERC had raised some queries. KEGC review panel had looked into the queries and reply would be submitted.


mailto:[email protected]

iii) TSTRANSCO had informed that charges are yet to be notified by TSERC. TSERC had started functioning.

iv) TANGEDCO was requested to address the reactive billing issues of RE generators.

v) SRLDC/NLDC had stated that all RE generators may need to absorb MVAR during high voltages.

vi) SLDCs needed to be empowered regarding reactive interchange – Reactive charges to be suspended when instructed by SLDC.

vii)SRPC had informed that this issue was brought to the attention in meeting at CERC during the meeting held on 24th June 2019. POSOCO was requested to furnish suitable feedback to CERC in this regard.

NLDC/POSOCO may update the status.

48. Ramp rates/Technical Minimum/ Startup from Hot/ Warm/ Cold

48.1 Ramp rates, technical minimum and startup from hot/warm/cold conditions is under deliberation in various forums of SRPC.

48.2 Regulation 7(4) of CEA (Technical Standard for Construction of Electrical Plant and Electrical Lines) states, ‘the design shall cover adequate provision for quick start up and loading of the unit to full load at a fast rate. The unit shall have minimum rate of loading or unloading of 3% per minute above the control load (i.e. 50% MCR)’.

48.3 The following had been noted in the earlier meetings: TCC had agreed to the Recommendations finalized in the Special Committee

Meeting held on 21.01.2019.

With regard to 55% Technical Minimum, SLDCs / State utilities agreed to approach SERCs for necessary amendment/inclusion in State Grid Code along-with compensation mechanism for the degraded parameters in line with CERC IEGC Regulation.

All generators were requested to align startup time from hot, warm and cold conditions, as per technical specification of OEMs. These time lines would need to be utilized by SRLDC/SLDCs while taking the operation decisions.

NTPC had informed that they are going ahead for 1% ramp as per CERC Regulation. Detailed studies were being taken through Siemens/Emerson. However for new stations like Kudgi etc they are following with OEM for technical specification compliance. They were awaiting the detailed procedure of POSOCO in this regard.

TSGENCO had informed that they have identified KTPS Stage II - Unit 11 (500 MW) for conducting pilot test for flexible operation.

NLCIL Petition No. 192/MP/2019 on Exemption from Technical Minimum operation for NLCIL TPS-II Expansion (2 X 250 MW) CFBC Units till 31.3.2020 was heard by


CERC 05.09.2019. The Commission directed the staff to refer the matter to CEA and obtain its expert opinion in the matter.

49. PGCIL to engage in other business for optimum utilization of transmission assets

49.1 CERC had passed Order dated 28.05.2019 in Petition No 180/MP/2017 of PGCIL to engage in other business for optimum utilization of transmission assets.

49.2 In the 36th Meeting of SRPC, PGCIL had stated that CERC order covers all aspects and they would proceed as per CERC order. The procedure was under Board approval and the same would be presented to SRPC in the next meeting.

49.3 CERC has brought out the draft CERC (Sharing of Revenues derived from utilization of transmission assets for other business) Regulations, 2019 on 25.09.2019. The last date for furnishing comments was 31.10.2019.

50. Methodology of settlement of accounts for bilateral short term and collective transactions, for the period of Grid Disturbance

50.1 CERC vide order dated 09th October 2019 has approved the Approval of the "Methodology of settlement of accounts for bilateral short term and collective transactions, for the period of Grid Disturbance" under Regulation 6.5.17 of Central Electricity Regulatory Commission (Indian Electricity Grid Code), Regulation 2010.The “Methodology of settlement of accounts for bilateral short term and collective transactions, for the period of Grid Disturbance” specified in this order shall come into force from the date of coming into effect of IEGC Second amendment i.e. 17.02.2014.

50.2 In the 42nd Meeting of Commercial Sub-Committee held on 22nd October 2019, SRPC Secretariat had requested SRLDC to furnish the details of Grid Disturbance (from 17.02.2014) which affected ISGS/Sellers with bilateral short term and collective transactions. SRLDC agreed to furnish the details within one month. The revised DSM accounts of the entities, if any, affected due to Grid Disturbance would be issued as per the methodology in the CERC order on receipt of the details from SRLDC.

50.3 Subsequently, SRLDC vide letter dated 04.12.2019 (Annexure-XLIV) have furnished the list of GDs declared by SRLDC and the affected ISGS stating that there has not been any other incident raised / discussed in CCM/SRPC meetings in the past for declaration of GD affecting the Regional account. SRLDC has suggested that the matter may please be taken up for discussion in next CCM/special meetings and ratified in SRPC meeting.

50.4 Accordingly, the matter would be discussed in the 43rd meeting of Commercial Sub-Committee of SRPC.


51. Grid Operation

51.1 Salient Achievements

Solar eclipse was experienced on 26th December 2019 affecting solar generation in Southern Region. Solar eclipse started approximately at 08:00 hrs and ended by 11:30 hrs. All constituents and SRLDC planned and coordinated the LGB effectively during the eclipse.

TANTRANSCO had extended additional power to Yerrandahalli, Karnataka from Hosur since 25.10.2019. KPTCL had assured that they are taking all steps to ensure revival of the system by 10.01.2020 as requested by TANTRANSCO.

CERC vide Order dated 11.09.2019 had directed to implement the SCED pilot for the thermal Inter State Generating Stations (ISGS) that are willing to participate in the SCED, for the period from 1st October, 2019 to 31st March, 2020. NLDC has issued revised SCED Procedure which is applicable during the period of SCED Pilot w.e.f 01.10.2019

Outage Coordination Scheduling Application’ has been made operational by SRLDC.

51.2 Grid Highlights during July 2019

a) HVDC Bhadravathi A/C Pass Mock drill conducted on 20.07.2019b) NNTPP Unit I Infirm power injection started from 23.07.2019 (Max Gen 200 MW)c) 765 kV Chilkaluripeta – Kadapa D/C charged on 29.07.2019d) STATCOM +/- 100 MVAr at Hyderabad charged on 10.07.2019e) Erection of 220 kV D/C line from Boksampalli to KIA Motors Switching Station

and 220/33 kV SS Ammavaripalli in Ananthapur District (35 Ckm) commissioned on 24.07.2019 by APTRANSCO.

f) 220/33 kV Ammavaripalli I & II in Ananthapur District (100 MVA) commissioned on 24.07.2019 by APTRANSCO.

g) 220 kV SS Ongole in Prakasam District of existing 1x160+2x100 MVA commissioned on 22.07.2019 by APTRANSCO with augmented capacity of 2x160+1x100 MVA.

h) LILO of one circuit 220 kV Srisailam – Dindi D/C line to 220/33k V Domalapenta SS in Mehboob Nagar district (0.200 Ckm) commissioned on 26.07.2019 by TSTRANSCO.

i) 220/33 kV Sub-station at Domalapenta (PTR 1) in Nagar Kurnool District (31.5 MVA) commissioned on 26.07.2019 by TSTRANSCO.

j) 220/11 kV Sundilla SS in Peddapalli District (2 Nos Pump Transformers) commissioned on 01.07.2019 by TSTRANSCO with charged capacity of 100 MVA.

k) 220/11 kV Annararam SS in Peddapalli District (2 Nos Pump Transformers, Station Transformer) commissioned on 04.07.2019 & 25.07.2019 by TSTRANSCO with charged capacity of 150 MVA.

l) 220/11 kV SS Medigadda SS in Jayashankar Bhoopalappalli district (2 Nos Pump Transformers) was commissioned on 22.07.2019 & 25.07.2019 by TSTRANSCO with charged capacity of 100 MVA.


m) 1 No 400/13.8 kV, 160 MVA Pump Transformer (3rd unit) at 400/13.8/11 kV Ramadugu Substation (PTR 3) (160 MVA) commissioned on 26.07.2019 by TSTRANSCO.

n) 1 No 400/13.8 kV, 160 MVA Pump Transformer at 400/11 kV GIS Medaram Substation (PTR 7) (160 MVA) commissioned on 18.07.2019 by TSTRANSCO.

51.3 Grid Highlights during August 2019

a) SR reservoirs storage increased 8300 MU (53% of total storage (15608 MU) during August 2019.

b) Telangana met all time maximum demand of 11703 MW on 30 th August 2019 and all time maximum consumption of 242 MU on 29th August 2019.

c) Fixed series capacitor I & II of 400 kV Pavagada – Tumkur charged 24th and 30th August 2019.

d) Re-allocation of 1000 MW Power to Government of Andhra Pradesh out of surrendered share of various Power Stations of NTPC for the period 01.09.2019 to 30.09.2019 by MoP. Mouda Stage – II - 211.6; Mouda Stage - I -212.6 & Dadri Stage – II- 575.8.

e) 220 kV D/C line for making LILO from existing 220 kV KTS-Shapurnagar S/C line to proposed 400/220 kV SS Jangaon I & II in Jangaon District (48 Ckm) was commissioned on 10.08.2019 by TSTRANSCO.

f) 220 kV D/C line for making LILO from existing 220 kV KTS-Shapurnagar S/C line to proposed 220/132 kV SS Waddekothapally I & II in Mahabubabad District (17 Ckm) was commissioned on 13.08.2019 by TSTRANSCO.

g) 220/11 kV Bheemghanpur SS in Jayashankar Bhupalpally District was commissioned on 14.08.2019 by TSTRANSCO with charged capacity of 80 MVA.

h) 400/220/11 kV Sundilla SS in Peddapalli District was commissioned on 26.08.2019 & 31.08.2019 by TSTRANSCO with charged capacity of 100 MVA.

i) 220/11 kV SS Medigadda SS in Jayashankar Bhupalpally district was commissioned on 27.08.2019 by TSTRANSCO with charged capacity of 100 MVA.

j) 400/11 kV Chandulapur LIS SS in Siddipet District was commissioned on 22.08.2019 by TSTRANSCO with charged capacity of 25 MVA.

k) 400/13.8/11kV Chandulapur LIS SS, (PTR 2) (25 MVA) was commissioned on 22.08.2019 by TSTRANSCO.

l) PGCIL (SR-II) had put the 500 MVA, 400/220 kV Transformer at Tumkur (Vasantnarsapur) Substation under COD wef 17.06.2019:

51.4 Grid Highlights during September 2019

a) Bhadradri Thermal Power Plant (BTPS-Manuguru) of 270 MW was first time synchronized to grid by TSGENCO/TSTRANSCO on 19.09.2019

b) 220 kV Rachagunneri S/S at Chittoor District was commissioned with an augmented capacity of (1x100+1x160) MVA (Earlier capacity 2x100 MVA) by APTRANSCO) on 05.09.2019.

c) 220 kV Bommur S/S at Godavari District was commissioned with an augmented capacity of (2x160+1x100) MVA (Earlier capacity 1x160+2x100 MVA) by APTRANSCO) on 21.09.2019


d) 220 kV Nannur-Regumanugadda line LILOed at 220/11kV Brahmanakotkar SS and Brahmanakotkar to Regumanmugadda portion (of ckM 27.37) upto Loc No.29 was test charged on 30.09.2019 in Kurnool District.

e) 400/11 kV, 160 MVA Pump Transformer at 400/11 kV GIS S/S at Medaram (PTR-6) was commissioned on 23.09.2019 by TSTRANSCO.

f) 400/11 kV, 3x120 MVA Pump Transformers at 400/11 kV S/S at Tippapur (PTR-1,3 & 4) was commissioned on 04.09.2019,13.09.2019 & 26.09.2019 respectively by TSTRANSCO.

g) 400/13.8/11 kV, 2x160 MVA Pump Transformers at 400/13.8/11 kV S/S at Ramadugu (PTR 6 & 7) was commissioned on 07.09.2019 and 22.09.2019 respectively by TSTRANSCO.

h) 220 kV Malayalapally S/S at Peddapalli District was commissioned with augmented capacity of (2x160) MVA (Earlier capacity 1x160+1x100 MVA) by APTSTRANSCO) on 24.09.2019.

i) Circuit-I of Tirunelveli – Muvathapuza (Cochin) 400 kV Quad D/C line (Tirunelveli to Edamon on Multi Ckt Line and Edamon to Cochin D/C line) was put under COD wef 27.09.2019 by PGCIL.

51.5 Grid Highlights during October 2019

220 kV SS Kadapa was commissioned on 18.10.2019 by APTRANSCO with augmented capacity of 1x160+2x100 MVA, earlier 3x100 MVA

At 400/11kV GIS Medaram SS in Warangal district with 1x160 (MVA) capacity (PTR no 7) was commissioned on 26.10.2019 by TSTRANSCO.

At 400/13.8/11kV Chandulapur LIS SS in Medak district with 2x160 (MVA) capacity (PTR no 2&3) was commissioned on 18.10.2019 by TSTRANSCO.

51.6 Grid Highlights during November 2019

a) 220 kV SS Ananthapuram S/S was commissioned on 08.11.2019 by APTRANSCO with augmented capacity of 1x160+2x100 MVA(Earlier 3x100 MVA)

b) At 400/220 kV Janagaon SS 2x500 (MVA) capacity (PTR no 2 & 3) were commissioned on 01.11.2019 & 13.11.2019 by TSTRANSCO.

c) 220 kV lines (ckts I & III) of ckt kM 3 from Jagatyal-Nirmal (LILOs of RSS-Nirmal to 220 kV Jagatyal S/S) was commissioned on 20.11.2019 by TSTRANSCO.

d) 220 kV lines (ckts IV & III) of ckt kM 3 from Jagatyal-Vemnur (LILOs of Memnur-Nirmal to 220 kV Jagatyal S/S) was commissioned on 20.11.2019 by TSTRANSCO.

51.7 Demand Variation (Peak Vs Off-peak)

Issue regarding large variation between minimum and maximum demands has been under the consideration of TCC/SRPC. Issue is also being discussed in the monthly Meetings of OCC. Following was observed with regard to the period from July 2019 to November 2019:

Description

Minimum to Maximum Demand Variation %Andhra Pradesh Telangana Karnataka Kerala Tamil

Nadu Puducherry Southern Region

July 2019Highest 25.73 34.86 42.55 41.87 26.24 48.03 26.39Date (Day)

08.07.2019(Monday)

30.07.2019(Tuesday)

23.07.2019(Tuesday)

23.07.2019(Tuesday)

29.07.2019 (Monday)

26.07.2019 (Friday)

24.07.2019(Wednesday)


Lowest 13.71 19.80 28.65 24.79 8.91 18.53 10.45Date (Day)

25.07.2019(Thursday)

07.07.2019(Sunday)



07.07.2019(Sunday)

07.06.2019(Friday)

07.07.2019 (Sunday)

Average 19.94 24.39 34.65 33.40 17.28 30.64 18.07August 2019

Highest 36.99 35.99 45.29 52.39 30.79 37.13 23.61Date (Day)


05.08.2019(Friday)

19.08.2019(Friday)

13.08.2019(Saturday)

19.08.2019(Friday)

19.08.2019 (Friday)

26.08.2019(Friday)

Lowest 11.59 20.28 29.92 24.53 9.83 14.78 13.38Date (Day)

21.08.2019(Sunday)

15.08.2019(Monday)


07.08.2019(Sunday)

25.08.2019 (Thursday)

25.08.2019 (Thursday)

11.08.2019 (Thursday)

Average 20.41 26.74 37.42 35.89 20.15 26.01 19.43September 2019

Highest 24.62 38.64 46.51 40.79 32.20 44.11 26.53Date (Day)


17.09.2019(Tuesday)

06.09.2019(Friday)

16.09.2019(Monday)

30.09.2019 (Monday)


27.09.2019(Friday)

Lowest 13.13 17.38 30.93 23.87 14.22 20.18 13.11Date (Day)

17.09.2019(Tuesday)

01.09.2019(Sunday)

22.09.2019(Sunday)


22.09.2019(Sunday)

08.09.2019(Sunday)

15.09.2019 (Sunday)

Average 17.91 25.40 37.64 33.44 23.62 30.05 21.18October 2019

Highest 25.61 30.70 44.60 41.29 36.21 43.27 35.18Date (Day)

28.10.2019(Monday)


21.10.2019(Monday)

28.10.2019(Monday)

28.10.2019(Monday)

28.10.2019 (Monday)


Lowest 13.98 19.65 31.71 21.03 11.69 14.74 11.76Date (Day)


13.10.2019(Sunday)

07.10.2019(Monday)


13.10.2019(Sunday)

07.10.2019(Monday)

12.10.2019 (Saturday)

Average 19.23 25.31 38.09 32.41 26.02 30.86 23.44November 2019

Highest 32.08 31.63 44.60 44.50 38.85 46.10 31.87Date (Day)

10.11.2019(Sunday)

29.11.2019(Friday)


01.11.2019(Friday)

25.11.2019(Monday)

25.11.2019(Monday)

03.11.2019(Sunday)

Lowest 15.83 17.63 31.71 25.62 15.58 22.90 15.11Date (Day)

03.11.2019(Sunday)

17.11.2019(Sunday)


03.11.2019(Sunday)

10.11.2019(Sunday)

03.11.2019(Sunday)

10.11.2019(Sunday)

Average 24.27 25.04 37.99 31.83 28.89 35.03 24.15Note: Highest & lowest figures for the month have been computed based on the daily values.

51.8 Frequency of Operation of Southern Grid

Frequency of operation of the Southern Grid for the period under review is furnished below:

Month

Percentage of time when frequency (Hz) wasMonthAvg. freq.

Lessthan49.5

49.5to

49.7

49.7to

49.9

49.9to

50.0

50.0to

50.05

50.05to

50.20

Morethan50.20

Within IEGC range

49.9 to 50.05July 2019 0.00 0.05 7.45 33.65 34.70 23.80 0.35 68.35 50.00August 2019 0.00 0.10 7.18 34.52 37.66 20.10 0.44 72.18 50.00September 2019 0.00 0.08 4.49 31.53 43.30 20.53 0.07 74.83 50.01October 2019 0.00 0.01 3.18 34.47 42.25 20.02 0.07 76.72 50.01November 2019 0.00 0.01 4.05 34.23 39.16 22.46 0.09 73.39 50.01

During the period under review, caution / violation messages (Annexure-XLV) were issued to the constituents by SRLDC. Matter regarding overdrawal at low frequency by some of the constituents is being regularly deliberated in the OCC forum. Utilities were requested to


kindly adhere to the Regulations in this regard. All the concerned entities were requested to kindly take appropriate action in real time to curtail sustained UD/OD and UI/OI and on violation messages being issued by SRLDC and report compliance.

52. Reimbursement of SRPC expenditure The outstanding payment is given below:

S No. Member Utility Amount Due (Rs.)

S No. Member Utility Amount Due (Rs.)

1 CEPL 26,82,406 5 NVVNL* 12,82,722

2 HNPCL 38,26,017 6 AEL* 10,28,975

3 APSPDCL* 35,84,040 7 GMRETL* 10,44,676

4 APEPDCL* 43,149 8 LKPL# 10,28,975

* Members on rotation # Not a member from 2017-18

The above Member utilities are requested to expedite payment.

53. Date & Venue of the 38th SRPC & 37th TCC meetings

******


Documents

SOUTHERN REGIONAL POWER COMMITTEE · Web view28-29 December, 2015. However, the work has been delayed and KPTCL must expedite the same. Further, KPTCL shall issue NoC for injection