TECHNOTECHNO--ECONOMIC ECONOMIC FEASIBILITY REPORT (TEFR)FEASIBILITY REPORT (TEFR)

BemblaBembla (1x1000 kW)Hydro Electric Project (1x1000 kW)Hydro Electric Project (Revised)(Revised)

PART- I

REPORT

CHAPTER -1

EXECUTIVE SUMMARY Govt. of Maharashtra through its policy no. PVT-1204/ (160/2004)/HP dated 15th September 2005 has announced the policy for hydro power development through private sector participation. Water Resources Department, Govt. of Maharashtra through the bidding process vide their letter no. CE(E)/HP/D-2/T-1/Pvt/Bembla/110 Dated 04.07.2008 have allotted the Bembla Hydro Electric project to M/s. Arch Hydro Power Projects P Limited, Pune for development through private investment. Bembla Hydro-Electric Project is a Dam foot Hydro-electric project and has been planned by utilizing the discharges of Bembla reservoir in to Bembla Irrigation Canal. The project is located 28 kms from Yavatmal at Khadaksawanga village in Taluka- Babhulgaon, District Yavatmal in Maharashtra state. The particulars of the Bembla dam are as given below Sr. No Description Unit Data 01 Yield 50 % dependable Mcum 527.263 75 % dependable Mcum 322.39 02. Storage a. Gross storage Mcum 322.06 b. Dead storage Mcum 19.39 c. Live storage Mcum 302.67 03. Controlling levels a. Top of Bund level M 275.50 b. M.W.L. M 270.94 c. F.R.L. M 269.50 d. M.D.D.L. (Irri.) M 262.99 f. Sill Level of penstock M 259.95 Topographic surveys, geological studies, Construction material survey, electrical power evacuation study, rate analysis etc., were carried out covering the entire portion of the project site. Various alternatives from techno-commercial angle were studied before finalizing any particular alternative. Adequate data regarding the inflow, rainfall, reservoir levels, irrigation releases, drinking, losses, upstream utilization etc., was made available for the study. From the hydrological and power potential studies a project with installed capacity of 1 x 1000 kW is suggested. Considering the head and discharge and other parameters the Vertical Radial Kaplan machine is selected.

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As per the working table for 75% dependable year with the installed capacity of 1000 kW, the energy generation 2.28 MUS and net saleable energy 2.26 Mus is arrived at, with PLF of 26.00%. The Installed Capacity & particulars of power potential are as stated below:-

75% Dependable year

Levels Storage Rated conditions Efficiency ( η)

F.R.L. 269.50 M 322.06 Mcum Power A 1000 kW Turbine 93.9% Turbine Vert. Radial Kaplan

M.D.D.LP 265.11 M 68.24 Mcum Discharge D 18.44 m3/sec Generator 95.5% H operating 140% to 50%

M.D.D.L I 262.99 M 19.39 Mcum Head D 6.29 M Gear box 98.0% Q Operating 115% 40%

T.W.L.Min 259.70 M Machines 1.00 Nos. System 87.8% H loss(HL)

0.452

m

T.W.L.Max 260.65 M Unit Capacity 1000 1200 Flow/Unit

18.44

Avail. Q Max 44.46

Head range Power Generation Capacity range Head range for Power Generation Flow Range

Min 3.50 M Power Min 400 KW Min 2.79 M Min.Flow 7.38 m3/sec

Max 9.80 M Power Max 1150 KW Max 9.18 M Max.Flow 21.21 m3/sec

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Detailed cost estimates including the rate analysis of the major items is given in the report. The break-up of the project cost is as follows:- Cost Components Amount in Rs Lacs

1 Civil 220.072 E & M 290.003 Transmission work 5.004 Total (a) cost without IDC & FC 515.075 Interest During Construction 22.926 Financial Charges 21.157 Preliminary & pre-operative exp. 35.948 Total (b) 80.019 Grand Total a+b 595.0810 Capacity (MW) 111 Cost per MW 595.0812 Margin money for WC 4.4713 Total project cost 599.56

Considering Debt equity ratio as 60:40, thus the funds requirement shall be as follows:-

Sr.No. Description Rs. Lacs a Debt equity ratio Debt 60% Equity 40% b Term loan 357.05c Equity 242.50 Total cost: 599.56

Long term loan @12% per annum for a period of 10 years excluding 1year construction period & including 6 months moratorium and with proper assumptions for other items the financials for the project are worked out. It is proposed to sale the energy generated from the plant to MAHADISCOM, and hence sale of energy @Rs.2.84 per unit for 1st year of generation and 3 ps per unit escalation every year is considered. The results of the financial analysis are narrated below;

Results of Financial Parameters a IRR Percent 12.70 b Project payback period Years 8.63 c Debt Service Coverage Ratio DSCR 2.04 d Average cost of generation Rs per Unit 2.70

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The project shall be implemented in 12 months from the date of financial closure. The project is a dam foot power house and dam already exists, land also belongs to Govt. of Maharashtra and hence will be available on lease as per Govt. of Maharashtra Policy. Therefore, the project shall not face any major difficulties (which normally hydro projects had to face). The project is very close from Yavatmal and will be easy to execute. The project does not envisage any resettlement of the people, no land acquisition is involved, and no damage to the environment is anticipated. CONCLUSIONS In general, it is concluded that due to smaller magnitude of the project and typically a limited storage based scheme proposed for power generation, has eliminated the most of the likely factors for environmental deterioration. The scheme proposed will use the available access road and water source thereby simplifying the scheme. The climate, Geology etc. is found favorable for this type of project. The proposed scheme will provide several opportunities to the local people in terms of employment generation, electricity, construction facilities, developed infrastructure and improving the skills of the local people. The projects do not have interference with ancient historical structures or wildlife anyway and so also will maintain local culture of the village population. People’s participation shall help in speedy and proper implementation of the scheme. Options, we can suggest to connect our Power Plant to nearby 33kV Babhulgaon Substation by 4Km, 33kV overhead transmission line, which is Tech- Economically suitable. The project is found techno-commercially viable and attractive. Therefore, may be considered for execution on priority.

*****

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CHAPTER -2

PROFILE OF THE PROJECT PROMOTER

companies having civil construction as one of the core business area. The Group has mainly construction activities. The Group and its company has been associated and registered with Public Works Departments as Class I A, Maharashtra Krishna Valley Development Corporation (MKVDC), Pune Municipal Corporation (PMC) as "No Limit", and MES Class No. C -153. The projects cover the following sectors:-

• Irrigation projects • Building construction • Road projects • Railway contracts

The nature of group project activities cover

• Canals • Bridges • Roads • Buildings • Kolhapur Type (K.T.) Weirs/Bandhara’s • Railway Bridges and • Other Major and Minor Projects

The company possesses the specialization in R.C.C. Bridges, Buildings Work, Earth Work, Tunnel Work & Road, Aqueduct, and PSC Girder Work. • PROFILE OF THE PROJECT CONSULTANTS Subsequent to the allotment of the project, the promoters had appointed M/s. Wat-ere-source Technologies P Limited (WRTL) a Pune based Consultancy organization for conducting surveys, Preparation of TEFR and detailed design and engineering for the above project. TEFR is prepared as per the Govt. of Maharashtra conditions of allotment of the project. The Consultants have the requisite experience in Design, Investigations, Preparation of bankable projects reports of Renewable energy projects such as wind and hydel. The organization is associated and active in many projects across the country. The following project reports (TEFR) have already been approved by Govt. of Maharashtra for which the Engineering services were provided by WRTL.

• Pench –RBC ( 2 X 0.7MW) • Pench-LBC ( 2 X 2.2 MW) • Wainganga ( 3 X 4.5MW) • Ambai HEP ( 2 X 1.75MW)

These projects are now in the construction stage.

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M/s. _____________ Pvt. Limited is part of well established ____ Group of

POLICY -SMALL HYDRO PROJECT General power crisis in India is well known and the Government of India is increasingly becoming conscious to develop more and more ways and sources of power generation and is also trying hard to amend such crisis, which are coming as a hurdle to the progress of this sector. The Ministry of Power is aiming at “Electricity in each and every house” by 2012 A.D. and has started privatization of this sector in a big way to achieve the target. Hydro Power generation especially small hydro has acquired a special place in new scheme, as it has been one of the oldest ways of electricity generation all around the world. Our country has abundant hydro potential amounting to 84,000 MW, at 60% load factor that would give an installed capacity of 140000 MW. This is as per the potential assessed by the Central Electricity Authority. However, the total hydro capacity as on 2005 was a meager 25000 MW only, which is less than 17% of the capacity identified. India has vast potential of about 10,000 MW power generations through small hydel schemes at canal fall, irrigation dams, small rivers and natural falls in hilly and remote areas. However, the total installed capacity under installation is about 200 MW only. This leaves a vast potential still to be harnessed. In line with Govt. of India’s liberalized policies small hydro sector has also been opened up for private sector development by Maharashtra Government

Some countries/states are gifted with perennial rivers. If stored, this water could be good source for hydropower. The Maharashtra State is also blessed with tremendous potential for hydel power. In addition to mega hydro projects, the Govt. has launched schemes to harness this potential by means of small hydroelectric projects aiming at minimum target of 150 MW.

Region

Principal Hydro Pumped Storage Feasible Installed Capacity

Small Hydro (up to

15MW) Potential

Potential at 60 %

Load Factor

Feasible Installed Capacity

Potential (Yearly)

MW MW Billion kWh MW MW Northern 30155 53405 225 13065 3180 Western 5679 8928 31.4 39684 661 Southern 10768 16446 61.8 17750 801 Eastern 5590 10965 42.5 9125 530 North Eastern 31857 58956 239.3 16900 1610 Total 84044 148700 600 95524 6782

The increase in the demand - supply gap is the primary reason for the increase in load shedding in the State, which necessitated higher investments in power generation projects. The demand – supply requirements as per MAHADISOCM are presented below.

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Sr. No. Particulars FY05 FY06 FY07

1 Peak Demand (MW) 12749 14061 14600 2 Availability (At the time of Peak Demand ) (MW) 9704 9856 10100 3 Load shedding(At the time of Peak Demand ) (MW) 3045 4205 4500 4 Load shedding(At the time of Peak Demand ) (MU) 38.85 66.5 70.43

The increase in the demand - supply gap is the primary reason for the increase in load shedding in the State, which necessitated higher investments in power generation projects. As per MAHADISCOM there is a shortfall of 4205 MW in the current year and is expected to reach 4500 MW in the following year in Maharashtra alone. Therefore the need for new power projects is evident.

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CHAPTER -3

SALIENT FEATURES

Description Unit Parameters Project Bembla Type of project Dam foot PH

3.1 Location 1 Village Khadaksawanga 2 Taluka Babhulgaon 3 District Yavatmal 4 State Maharashtra 5 River/Stream Bembla 6 Sub Basin /Basin Wardha / Godavari 7 Nearest rail head Dhamangaon 8 Nearest Town place Yavatmal 9 Nearest Town place-Distance About 28 Kms

10 Toposheet 55 L/1, 55 L/2 11 Latitude 200-36'-00" N 12 Longitude 78° 08' 02" E 13 Altitude 260 m

3.2 Type of the scheme Dam Foot Scheme

3.3 Hydrology

1 Origin of the river Karanga at an altitude of 438.00m

2 Catchment Area Sqkm 2499.00 3 Average annual rainfall mm 878.85 4 Average Mansoon Rainfall mm 836.8 6 50% Dependable Yield (net ) Mcum 527.263 7 75% Dependable Yield (net ) Mcum 322.39

3.4 Storage 1 Gross storage Mcum 322.06 2 Dead Storage Mcum 19.39 3 Live storage Mcum 302.67 4 Annual utilization Irrigation Mcum 162.20 Drinking Mcum 32.828 Dehni lift irrigation Mcum 21.070

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Description Unit Parameters D/S Ecology Mcum 10.00 Annual evaporation losses Mcum 79.77

3.5 Controlling Levels of Bembla Reservoir 1 RBL M 246.35 2 Outlet sill level (ICPO) M 259.95 3 MDDL (Irrigation) M 262.99 4 MDDL (Power) M 265.11 5 FRL M 269.50 6 MWL M 270.94 7 TBL M 275.50 8 River sluice ( For d/s ecology) Nos No. 1 Size M 0.90 x 0.90 Sill level M 252.00 Discharge capacity Cumecs 2.88 Location m 1148.50

3.6 Details of Intake structure 1 Location of ICPO M At Right bank at Ch 4315 2 Emergency gate size M 3.2 x 6.00 3 Service gate size M 3.2 x 3.80 4 No. of Openings Nos 1 5 Penstock diameter M 3.80 6 Penstock thickness mm 12 7 Design discharge Cumecs 44.46

3.7 Power House 1 Type of Power House Surface 2 Size of power house m 27.00 x 18.00 x 19.00 3 Ground level at proposed PH m 265.00 4 Service/ unloading bay m 265.50 5 Machine Hall Floor Level m 261.00 6 Lowest D.T. level m 253.03 7 Centre line of machine m 257.45 8 HOT Crane Span m 12.00 Capacity T 20/5

9 High Flood Level at PH m 256.00

3.8 Penstock Existing Penstock

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Description Unit Parameters 1 No.of penstocks Nos 1 2 Dia penstock mm 3,800 3 Design discharge Cumecs 44.46 4 Length of penstock m 77.63 5 Thickness of penstock mm 12 Proposed extension of Penstock

1 No.of penstocks Nos 1 2 Dia. penstock mm Reducing from 3800 to 2500 3 Design discharge Cumecs 21.21 4 Length of penstock m 26.83 5 Thickness of penstock mm 10 6 Max. Static head m 9.80

3.9 D.T.Gate 1 Nos. of DT Gates Nos 2 2 Dimensions of DT gate m 3.00 x 2.31

3 Type of gate Vertical slide Lift gate, MS Steel

4 Sill level of D.T. gate m 253.03

3.10 Tail Race Pool 1 Length m 22.52 2 Bed width m 5.93 3 Reverse gradient proposed 1 in 4.00 4 Bed level at start of pool m 253.03 5 Bed level at end of pool m 258.66

3.11 Tail Race Channel 1 Type & Shape Trapezoidal 2 Length m 55.00 3 Bed width m 10.20 4 Full supply depth m 1.94 5 Free board m 0.50 6 Min. Tail water level m 259.70 7 Max. Tail Water Level m 260.65

3.12 Turbines 1 Head range 140% to 50% 2 Discharge range 115% to 40% 3 Rated discharge m 18.44 4 Rated head m 6.29 5 Type of turbine Vertical Radial Kaplan

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Description Unit Parameters 6 No. of units Nos 1 7 Rated capacity kW 1000 8 Estimated efficiency of turbine % 93.9 9 Turbine Output with overload kW 1150

3.13 Generator 1 Type of Generator Synchronous 2 No. of Generators Nos 1 3 Generation Voltage level Kv 3.3 Kv 4 Power factor pf 0.8 5 Overload capacity % 15 6 Estimated efficiency % 95.5

3.14 T-G Parameters 1 Specific speed of turbine (Ns) RPM 615.5 2 Rotational speed of turbine RPM 187.5 3 No of poles for generator Nos 8 4 Speed of generator RPM 750 5 Runner diameter mm 2103 6 Runner setting m -1 7 Level of line of distributor N.A. 8 Centre line of penstock m 258.33 9 Gantry rail level m 273.00 10 Gantry hook level m 272.50 11 Speed increaser if any Gear box provided 12 Estimated efficiency of gear box % 98.00

3.15 Generation Total no. of generation days in year Days 96 Annual generation Mus 2.28 Capacity utilization / Plant load factor % 26.03

3.16 Power evacuation arrangement 1 Size of switchyard m 31 x 13.5 2 Ground RL at Switchyard m 265.00

3 Voltage at which power will be evacuated kV 3.3 /33

4 Location of feeding s/s Babhulgaon

3.17 Financial details 1 Estimated cost including IDC Lacs 599.56 2 Average cost of generation Rs/kWh 2.70 3 IRR % 12.70 4 Payback period Years 8.63

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CHAPTER - 4

PROJECT DESCRIPTION 4.1- General Topography The major North – East portion of Yavatmal district is covered by Bembla river which originates from an altitude of 438.00m from Karanja taluka of Washim, district. It flows from west to east in zig zag manner for about 84 km upto dam site. The bed gradient of the river at proposed dam site is 1:438. The Sub-basin of Bembla River is Wardha in Godavari basin. The proposed dam site adjoining to Khadakswanga is approachable from Dhamangaon – Yavatmal state highway about 22 km from Yavatmal. The dam site is 8 km from Babulgaon town. The dam site is located on toposheet No 55 L/1, 55L/2 has latitude of 200-36’-00” and longitude of 780-08’-02”. The nearest railway station is Dhamangaon (BG) about 24 kms from dam site. 4.2- Bembla dam Bembla dam is constructed across Bembla river which is a tributary of Wardha River in Godavari Basin. The total catchments area of project is 2499 sq.km. Major part of catchment is flat & classified as “Average”. The Bembla irrigation project comprises earthen dam. The length of the dam is 7650 m having top width of 6.5 m and maximum height of 29.15 m. A head regulator is provided at Ch 4315 m for regulating the flows into the Canal. Ogee type gated spillway with 20 radial gates has been constructed in the river bed between RD 1030 to 1327 m.

The construction of dam started in January 1993. Total length of dam is 7650 m including spillway. Earthen work & 297 m of masonry work is completed. ICPO of length 77.63 m is already laid. Erection of service gate is complete. Emergency gate & bulkhead work yet to be completed. From June 2007 there is partial storage in reservoir. The main canal is 113 km in length & has irrigation potential of 47000 ha. Out of which 10468 ha irrigation potential is created in 2006-07 & 27832 ha irrigation potential is proposed to be created upto June 2009. The work of construction of canal is under progress. 4.3- Yield at dam site The 75% & 50% net yield at this dam site is 322.39 & 527.263 Mcum.

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The proposed utilization of net available yield is as follows a) 162.20Mcum for irrigation on Right bank ICPO. b) 32.628 Mcum for drinking water supply c) 79.765 Mcum for evaporation losses d) 21.070 Mcum for Dehni lift irrigation e) 10.000 Mcum reserved for downstream ecology.

4.4- Topographic Survey It is proposed to generate power from the releases to be made available through head regulator. The proposed power scheme consists of extending the existing penstock upto the power house butterfly valve, power house, tail race pool, tail race channel and switchyard. The tail water shall be let into the existing canal via tail race channel of approx. 55 m long. The section of the TRC is maintained as that of existing irrigation canal. The detailed topographical surveys were carried out through Total Station and Plane Table while preparing the TEFR. The levels from reference benchmark of Bembla dam were transferred. The scale of mapping adopted is in accordance with the standards, guidelines and prudent practices followed for similar projects. The survey was carried out for the structures such as Intake, Irrigation canal, Penstock, Power House, Switchyard, Tail Race Channel. The ICPO of dia. 3.8 m with max. discharge capacity of 44.46 cumecs is already laid in the body of the dam. The consultants have planned one unit of 1000 kW by keeping proposed irrigation pattern in mind, for which maximum discharge required is 20.33 cumecs. Therefore, the extension of penstock of length 26.83 m with 2.50 m diameter & 10mm thickness is planned. For detail calculations for diameter & thickness of penstock please refer Annexure No-8 4.5 - THE ENVIRONMENTAL ASPECTS Being a small hydro power, scheme has simple layouts and mostly will not interfere either with flow or flow pattern of the nala/river/khad on which the project is proposed. It is important to mention that the project is a dam foot based project utilizing head without creating any pondage. Therefore, this has practically no adverse effect on environmental and ecology of the area. As per Ministry of Environment and Forest Notification dated 27th January’1994 (para 3) followed by its amendment dated 13th June’2002(clause ii), All River Valley Projects including hydel power, major irrigation and their combination including flood control, where the investment is Rs.100 crores or above only need to obtain environmental clearance from the Central Government. All other projects need to approach the concerned State Government departments/agencies only for the necessary clearances and permits. Clearance from the Pollution Control Board shall be obtained from the concerned authorities.

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4.6- ENVIRONMENTAL AND SOCIAL IMPACTS In general, the main environmental concerns pertaining to Small Hydro Projects(SHP) are a) Submergence of settlements and re-location of people; b) Failure of water body i.e. dam, forebay etc; c) Effects of construction; d) Effects on fisheries and other aquatic life; e) Effects of storage of water in the dam or water quality and vectors of diseases; f) Downstream effects due to less or heavy discharges; g) Loss of flora and fauna and their habitat; and h) Encroachment into genetic reserves and wild life parks etc. The environmental impact could be due to project location, project design, project construction or project operation. The impacts due to project location include -rehabilitation and settlements, encroachment into genetic resources and wild life parks, encroachment into forests, soil erosion etc. Impacts due to project design mainly include water quality, seismicity and safety of structures. During project construction the impacts are mainly due to soil erosion, siltation, etc. In project operation, the environ-mental impacts are often due to variation in flows, water quality, water logging and salinity etc. The objectives considered while carrying out the environmental study are (i) Assessment and analysis of the positive and negative environmental impacts of the proposed project; (ii) Selection of a project alternative which may have substantial positive environmental impact and limited adverse impact.

4.7- PROJECT FORMULATION Govt. of Maharashtra has allotted the project to the Company for development of this site for generation of power from the available water source in the Bembla reservoir. Proper selection of the site and alignment of the components of the scheme was done after surveys were carried out. Project plan has been prepared after the study of climate, geology, hydrology, land and soil use, flora and fauna, available health conditions, Construction facilities, cultural and socio-economic aspects of the region.

The project under consideration is dam foot and dam is already constructed by Irrigation department. Hence no submergence is involved in proposed HEP. The project does not envisage any resettlement of the people. The land required for the project is already in possession of WRD, Govt. of Maharashtra and hence will be available on lease as per Govt. of Maharashtra Policy.

The area do not fall in the boundary of any bird sanctuary, national park

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CHAPTER - 5

GENERAL TOPOGRAPHY, METEOROLOGY, CLIMATOLOGY The Bembla river project is a major irrigation project across the river Bembla, a tributary of Wardha in Godavari basin in Maharashtra atate. The project envisages the construction of earthen dam of about 7650 long with masonry gated central spillway. The Bembla river originates from high land near Karanja town in Akola District at an altitude of 438 m and after initially flowing through Akola District in Northern direction for about 21 km, it turns to North- Eastern direction for about 15 Km in Amarawati District. Thereafter it flows through towards the Bembla project’s dam site and further till its confluence with Wardha river is 113 Km. The catchment of the project is flat & it can be classified as “ Average”. The entire region is very dry and prone to large temperature variations with maximum and minimum temperature recorded in the region being 480 C and 90 C respectively. The humidity in the region ranges from 73% to 60.83%. The precipitation in the catchment is mainly due to south-west Monsoon from June to October with some fair dry spells lasting in a week to fortnight are generally experienced in the month of November and December. The average weighted monsoon rainfall in the region is 878.85 mm. The month wise evaporation depths as recommended by CWC at this site are tabulated below- Month Depth (cm) Month Depth (cm) Month Depth (cm) January 8 May 42 September 12 February 13 June 34 October 13 march 27 July 21 November 10 April 30 August 15 December 7

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CHAPTER – 6 HYDROLOGY 6.1- Catchment The catchment area of Bembla dam site is 2499 sqkm. 6.2- Data Availability The rainfall data & river gauge data are available for following two sites

A) Gauge data of Nandura G & D site on Bembla river and rainfall data in the catchment area of this gauge site maintained by State Govt.

B) Gauge data of Ghugus G & D site on Wardha river and rainfall data in the catchment area of this gauge site maintained by C.W.C.

6.3- Rainfall data adopted for Nandur G & D site The rainfall data of 36 years ( from 1965 to 2000) for rain gauge stations which are within he Bambla catchment or the station located outside the catchment having likely influence on the precipitation of catchment area have been considered for solving regression equations. The following are the influencing rain gauge stations of the catchment considered for drawing “Thiessen’s polygon

i) Karanja ii) Badnera iii) Amravati iv)Ner v) Darwha vi) Yavatmal vii) Talegaon viii) Chandur Railway

The catchment area at Nandura G and D station is 1012 sqmiles. 6.4- Gauging and discharge Data of Nandura Satation There is no river gauging and discharge station established at the Bembla dam site. However, the river gauging and discharge observations are being carried out at the Nandura gauging site which is located 2.5 Km downstream of the Bembla dam site. The gauge and discharge data at this site from 1965 to 2000 ( 36 years) is considered. 6.5- Yield at dam site The yield available at dam site for 50% & 75% dependable year is 527.27 Mcum and 428.97 Mcum respectively.

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6.6- Post monsoon and Regenaration flow As approved by CWC Delhi, in hydrological study the post monsoon and regeneration flow percentage considered is as tabulated below.

Nov Dec Jan Feb Mar Apr May

50% 27% 12% 5.96% 5.04% 0% 0%

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CHAPTER – 7

SUBSOIL INVESTIGATION 7.1- INTRODUCTION Bembla Hydro-Electric project is proposed as dam foot power house utilizing the discharges for irrigation routed through Irrigation cum power outlet already provided. 7.2- SEISMICITY OF THE AREA As per the seismic zoning map of India (I.S.1893, 1984) the area falls in seismic zone no. II. Seismicity will be considered while detailed designing of the powerhouse & other civil structures. 7.3- GEOLOGY AT SITE Generally the hard rock is available within a short depth of ground. The top surface is covered by hard Murum at some places and soil at some places. For the Bembla dam the Deccan Basalt was available for foundation. Hard and jointed fine grained zeolitic Basalts are exposed in the river bed and occur at shallow depth on left abutment of the dam.

7.4- DESIGN ASPECTS Because of the very nature of the SHP, minimum geological investigations are required, for design of structures/components. Since this project is being planned on the existing dam site for which data is available, the same shall be used wherever possible. On the basis of the geological investigations, topography at site and controlling elevation levels suggests

• The max. depth of excavation for power house foundation is as shown in drawing. • All the structures shall be surface structures. • The existing penstock is proposed to be extended and laid in the excavated area

and backfilled. • The powerhouse bottom will be given proper treatment such as curtain grouting

etc., and wherever, rock exists anchoring shall be done in the RCC raft. Moreover, detailed investigations such as bore log data, soil resistivity etc. will again be taken during the detailed designing of the components. .

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CHAPTER – 8

PENSTOCK & POWER HOUSE 8.1 – EXISTING PENSTOCK The ICPO, is located at RD 4315 m. The approx. 77.63 M long (Including Y – piece) penstock of 3800 mm dia. & 12 mm thickness is provided at the site. 8.2- INTAKE STRUCTURE AND TRASH RACK ARRANGEMENT The Bembla Dam is completed in June, 2007 and there is partial storage. A head regulator is already provided for regulating the flows into the Canal. The work of erection of the service gate is also completed. The intake structure is provided with suitable trash rack arrangement by GoMWRD. 8.3- EXTENSION OF PENSTOCK A 3.8 m dia Penstock with 12 mm thickness is provided at the site. Maximum gross head at site is 9.83 m and maximum pressure is 5.00 cm2 including water hammer. The existing penstock has design discharge capacity is 44.46 cumecs. The Y- limb is provided at the end by WRDGoM. For the proposed installed capacity, maximum discharge is 20.33 cumecs. Therefore, the design of extension of penstock is based on 20.33 cumecs. Accordingly the diameter works out to be 2.50 m. Detailed calculations are attached vide Annexure N0-8A. Thickness of penstock worked out is 10 mm. vide Annexure N0-8C. A thrust block will be provided just before the entry at the power house for absorbing the thrust developed due to sudden closure of the valve with allowable pressure rise in the penstock.

8.4- POWER HOUSE The power house will accommodate one turbine-generator and its auxiliary systems of capacity 1 x 1000 kW. The selected turbine is Vertical Radial Kaplan. The water will exit from the draft tube into the tailrace pool. In the power house, an inlet valve (butterfly valve) will control the flow of water into the turbine. Typical arrangement of the equipments in the powerhouse is shown in the drawing. The size of the powerhouse will be 27.00 x 18.00. The powerhouse will be covered by GI sheets on roof with steel trusses. The control room will be covered by RCC slab. The General arrangement and equipment layout drawings showing the tentative powerhouse dimensions are enclosed.

Centre line of penstock at the entry of power house is provided at 258.33 m. Machine hall floor level shall be 261.00 m and service bay cum loading & unloading bay is kept at EL. 265.50 m. The dimensions of service bay are 13.00 x 4.50 m, and control room is 21.0 x 5.0 m size. Within this, the separate rooms for DG set are provided.

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The proposed powerhouse will have RCC columns with individual footings in substructure and RCC columns with brick masonry will for superstructure. The steel truss with GI sheets covered above, is provided for roofing purpose. A gantry is provided for operating the HOT crane of 20/5 T capacity provided for erection and maintenance of the equipments. 8.5- TAIL RACE POOL AND TAIL RACE CHANNEL A draft tube gate 2 N0s. having dimensions of 3.00 x 2.31 m size fabricated out of steel shall be provided to protect the building from flash floods and for use during the maintenance. The gates will be provided with manually operated chain pully block of suitable capacity

A trapezoidal shaped tail channel of bed width 10.20 m and side slope 1:2, FSD 1.94 m and 55 m long is designed to carry the discharge back into the canal. Maximum and minimum tail water levels arrived at is 260.60 m and 259.67 m respectively. The level at the confluence of tail channel & irrigation canal is 258.66m. 8.6- OUTDOOR SWITCHYARD Outdoor switchyard of 31 x 13.5 m dimensions is provided just near to the powerhouse building to accommodate the main transformer and associated equipments. The level of 265.00 m shall be maintained to minimize the excavation and reduce the length of cables. 8.7- APPROACH TO POWER HOUSE The PH site is approachable by a existing service road. A provision for repairing of existing road is made in the cost estimates.

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CHAPTER – 9

UTILISATION PATTERN As per the information made available by Govt. of Maharashtra, the 50% & 75% net yield at this dam site is 527.263 & 322.39 Mcum respectively including 3% post monsoon & regeneration flow. The proposed utilization of net available yield & regeneration flow is as follows (Refer Data supplied by Executive Engineer , Yavatmal) Sr. No.

Particulars Oty. Mcum

1 For Irrigation on right bank through ICPO 162.200 2 For drinking water supply to Yavatmal directly from reservoir

through independent intake well 32.628

3 Evaporation losses 79.565 4 Dehni Lift irrigation 21.070 5 Reservation for downstream ecology through river sluice provided

at RD 1148.50 m with sill level 252.00 m. 10.000

Out of total water, 162.20 mcum water, which is meant for canal irrigation is available for power generation. After generation water will be released in canal for irrigation while spills after utilizing for generation will be let into Bembla River through escape available downstream at ch 600m. The releases of water for irrigation are based on two rotations of 14 days each with canal running for 12 days. The rotations & days were confirmed from the Bembla dam mentainance Officials, during our visit & meeting at Yawatmal. Following are the details of the existing canal:-

• Length of canal - 115km • Full supply depth - 2.80m • Bed width at the head - 10.20m • Side slope at head - 0.5 :1 • Bed slope - 1:6000 • Maximum discharge - 44.46 cumecs • Lining - Unlined • Max. water depth in canal w.r.t. water releases for power generation - 1.99 m • Min. water depth in canal w.r.t. water releases for power generation - 1.04m

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CHAPTER – 10

POWER POTENTIAL 10.1 -OPTIMISATION OF INSTALLED CAPACITY The working tables for 75% & 50% dependable year is attached herewith vide Annexure 2E & 2F. As per CBIP publication No. 280 page 67, the installation capacity shall be based on 50% dependable water. Therefore, working table for 50% dependable yield is used for computing the optimal installed capacity for the existing site. From working table for 50% dependable year it is seen that, maximum 8.27 m & minimum 5.38 m gross head is available at this site. The discharge is ranging from 20.63 to 5.29 cumecs. The exploitable power ranges from765 to 1152 kW. Therefore, baseed on detail hydrological & power optimization study one unit of 1000 kW is provided. From the table below it can be also seen that, there is optimum energy generation for proposed release pattern with one unit of 1000 kW. And therefore, one unit of 1000 kW is selected for the proposed scheme with 15% overload for short period during spills to cover the maximum wide range) This will give an annual energy generation of 2.28 Mus for 75% dependable yield. Table - Turbine Capacity Selection Sr. No. Capacity No. of Units Total Capacity MUS PLF Increment

1 700 1 700 1.81 29.58% 0.00 2 750 1 750 1.92 29.25% 0.11 3 800 1 800 2.02 28.86% 0.10 4 850 1 850 2.12 28.52% 0.10 5 900 1 900 2.21 28.02% 0.09 6 950 1 950 2.24 26.97% 0.04 7 1000 1 1000 2.28 26.03% 0.03 8 1050 1 1050 2.28 24.77% 0.00 9 1100 1 1100 2.28 23.65% 0.00

10 1150 1 1150 2.28 22.62% 0.00 11 1200 1 1200 2.28 21.68% 0.00 12 1250 1 1250 2.28 20.81% 0.00 13 1300 1 1300 2.28 20.01% 0.00 14 1350 1 1350 2.28 19.27% 0.00 15 1400 1 1400 2.28 18.58% 0.00

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10.2- ENERGY GENERATED From the working table for 75% & 50% dependable yield there is an energy output of 2.28 Mus & 3.80 Mus per year respectively.

Page 25 of 140

CHAPTER – 11

SELECTION OF TURBINE UNIT The basic features and criteria for selection of Electrical and Mechanical components of the Hydro Electric Power Plant including interfacing arrangement with Boards nearest substation, power evacuation system are elaborated below. 11.1- RATING OF MAIN PLANT As discussed in the Chapter on Power potential the optimum output of the generating plant has been decided as 1 x 1000 kW. This is in view of the effective utilization of the discharges and to ensure reliability and flexibility. 11.2- MAIN INLET VALVE Main inlet valve of 2500 mm dia. butterfly valve shall be provided for controlling the flow while discharging the water in to the turbine and also required to be closed for maintenance of the units.

11.3- HYDRAULIC TURBINES The main specifications of the Turbines are as given below:

∗ Turbine type : Vertical Radial Kaplan ∗ Speed Governor : Electronic type ∗ Rated speed : 187.5 rpm

Note: We have considered pressure rise as 50% of rated head and speed rise as 45% of rated speed. NE 11.4- CRANE AND HOISTS Hand operated overhead single girder crane with main hook capacity 20 Tons and auxiliary hook of 5 Tons will be provided in the power house for lifting of equipment like T-G components and other equipments for erection and maintenance. The exact capacity of the crane will be selected to suit the requirements of the T-G equipment. Manually operated lifting device for the gates and stop logs for the Draft tube will be provided. 11.5- MECHANICAL AUXILIARIES SYSTEMS

∗ Cooling Water : This will consist of cooling water pumps, strainers, valves, gauges, meters, piping etc. During detailed design techno economic feasibility of providing tapping from main penstock with pressure reducers will be reviewed.

∗ De-watering : A combined system for dewatering the spiral casing as well as draft tube of the turbines with submersible pumps and piping is proposed.

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∗ Oil Purification : A portable oil purifier is envisaged for purification of lubricating and transformer oil.

∗ Fire Protection : Fire protection consisting of fire extinguishers to be located at strategic locations will be provided for control and switchgear rooms.

∗ Ventilation : The Power House will be provided with suitable ventilation system. Control room and office areas will have window/package air-conditioners.

11.6- ELECTRICAL GENERATORS

The turbines will be directly coupled to Synchronous Generators with speed gears. The following are the main specifications of the Generators:

o Type Vertical Shaft Synchronous o Speed 750 RPM o Output 1000 kW o Voltage 3.3 kV o Power factor 0.80 lag o Frequency 50 Hz o Excitation Brushless excitation with automatic voltage Regulator o Cooling Air cooled o Neutral grounding Resistor with NGT

11.7- AUXILIARY EQUIPMENT

∗ LAVT Panels : The generators will be provided with LAVT panels comprising Lightning arrestors, Potential and Current transformers on the Line side.

∗ NGR Panels : Neutral Grounding cubicles shall comprise provision for making star point of the Stator windings on the neutral side with current transformers and neutral grounding resistor to limit ground fault current.

11.8- MAIN TRANSFORMERS One generator will be bussed at 3.3 Kv and connected to a 3.3 Kv/33 kV outdoor power transformer for stepping up the voltage to 33 kV for transmission. 11.9- ELECTRICAL AUXILIARIES

o Auxiliay LT system: This will comprise 1 No, 63 kVA, 33kV/433 V, 3 phase 50 Hz outdoor type step down transformers connected to 33kV bus. The auxiliary switchgear will also have a feed from 63 KVA Diesel Generator for emergency supply. The AC auxiliary loads will include auxiliaries of T-G sets, common station auxiliaries like Dewatering and water

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pumps, compressors, Crane, illumination, Battery chargers, ventilation system etc.

o D.C system: This will comprise 24 V DC maintenance free Lead acid

Batteries with Float and Boost chargers and DC Distribution switch gear. The DC loads will include emergency lights, control and protection, field flashing etc.

11.10- ELECTRICAL SYSTEM

∗ Cabling System : 33kV XLPE cables will be provided for 33 kV power circuits, 3.3 kV XLPE cables will be provided for 33 kV power circuits and 1.1 kV class PVC cables for LV power and control circuits. The cables trays and trenches will be provided for laying the cables. HV and LV cables will be routed on separate trays. All directly buried cables will be armored for mechanical protection.

∗ Earthing Protection : The earthing grid will be designed to carry the ground

fault current. Suitable earth mats will be provided for the Power House and 33 kV switchyard. The enclosures of all electrical equipment will be connected to the earthing grid for safety. The switchyard grid will be designed for step and touch potentials within safe limits.

∗ Lightning Protection : Lightning protection will be provided for 33 kV

switchyard and power house ∗ Illumination System : The power house, switchyard and all outdoor areas will

be provided with suitable illumination connected to station AC auxiliary supply. Key areas like operation areas and passages will have DC emergency lights connected to DC system.

11.11- PROTECTION SYSTEM The Single Line diagram shows the scheme of connection of generator and the basic protections for the various feeders. The protection scheme is as per standard practice followed for units of these ratings. The drawing also shows the suggested current and potential transformer ratios and connections. 11.12- CONTROL AND MONITORING SYSTEM Turbine-Generator will be provided with a complete set of instruments, gauges, controls and safety devices on unit control board, for monitoring the conditions of the unit during

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normal running and emergencies. These shall permit the unit to be started and brought up to speed at the governor location and control during normal running. The control system shall consist of the following:

∗ Central control from control desk in control room for control and monitoring of the entire plant

∗ PLC based local control system for each generating Unit, Station auxiliaries including D-G set and 33kV switchyard.

Modes of operation: o T- G Units

Local Manual from Unit Control Board Local automatic from Unit control panel with sequential control

through PLC. Remote from central Control Desk in control room either manually or

automatically. o Station services and 33 kV switchyard

local Manual control Remote control from Control desk in Control room.

11.13- TELECOMMUNICATION SYSTEM Telephone communication interconnected with the local network will be provided for operation and control of the project.

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CHAPTER – 12

POWER EVACUATION 12.1- GENERAL The proposed project is designed as a base load station and shall be connected with the grid. Therefore the study was mainly focused on distribution of power through MAHADISCOM grid. Evacuation study covered the grid network in and around project site. The network of 33kv substations and HV substations and transmission lines network is studied. However, during the course of execution the promoter has an option to sell the power to other utilities also. 12.2- POWER EVACUATION LOCATION During the visit to the project site we have noticed the followings:- There is 33 kV sub-station at Babhulgaon which is at distance of 4 Km from proposed project site. And it has following provision.

o 33 kV / 11 kV, 5MVA Transformer o 3 Nos. 11 kV lines. o Space in switchyard for bay extension with existing Bus Bar arrangement.

• We can connect our Power Evacuation System at following points : o At Babhulgaon 33 kV substation by laying 4 km, 33 kV overhead lines and

installation of 33 kV G.O.D. and fuse arrangement at 33 kV Babhulgaon substation.

Considering above options we can suggest to connect our Power Plant to nearby 33 kV Babhulgaon Substation by 4 Km, 33 kV overhead transmissions line, which is Tech- Economically suitable. 12.3- SALE OF POWER As discussed in the earlier section the generation voltage viz., 3.3 kV will be stepped upto 33 kV for evacuation of the power from the plant. It is proposed to sell the generated power from this plant to MAHADISCOM as per the MERC guidelines The interconnection will be through a single circuit 33 kV overhead line with suitable conductor. The Single line diagram shows the schematic arrangement of the bays at Babhulgaon substation. The 33 kV bays at either end will include necessary equipment like group operated disconnects, circuit breakers, lightning arrestors, current and voltage transformers, the tariff metering equipment will be provided at s/s at Hydro Project site substation in line with the requirements of MAHADISCOM. The cost estimates exclude the cost of 33 kV transmission line as this will be provided by utility at their cost as per MERC guidelines.

******

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CHAPTER – 13

PROJECT IMPLEMENTATION 13.1- ACCESS ROAD The access to the project site is vital point else providing altogether new road will add to the cost of the project. The condition of the existing road, length of new roads likely to be constructed etc., were studied and described in the report. . At present a well conditioned all weather tar road exists at site. The site is about 28 km from Yavatmal. 13.2 - CONSTRUCTION MATERIALS The survey for Construction materials such as cement, sand, Reinforcement steel, Structural Steel, Steel for Penstock etc was carried out. Availability of some of the important materials is discussed below:-

∗ Cement : Yavatmal 28 kms ∗ Sand, Bricks, Aggregate : Local 3 kms ∗ Reinforcement Steel : Yavatmal 28 kms ∗ Structural Steel : Yavatmal 28 kms ∗ Steel for penstock : Yavatmal 28 kms ∗ Diesel for vehicles : Babhulgaon 5 kms

Table 9.1: Quantities of major items of construction

Item description Unit Quantity

1 Cement MT 245 2 Sand m3 347 3 Metal m3 618 4 Re-inforcement steel MT 72 5 Structural steel MT 21 6 Penstock Steel MT 13.22 7 Excavation for foundation in all sorts of soft strata m3 2818 8 Excavation for foundation in hard rock m3 1681 9 cement concrete of M-20 m3 662 10 Cement concrete M-15 m3 26 11 Boulders for pitching m3 136

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13.3- AVAILABILITY OF LABOUR The labors can be available from the nearby villages during the construction period. 13.4 - ACCOMMODATION The temporary accommodation facilities can be provided by hiring the already constructed quarters/house as well as by construction of temporary sheds and building. However for the long term point of view construction of permanent residential buildings is envisaged. 13.5 - CONSTRUCTION POWER Existing 440v, 3phase line passes close to the power house. The same can be tapped and construction power can be made available during construction stage. Alternatively portable diesel generator set shall be used for Construction period. A separate metering arrangement shall be made at site. Provision for Construction power shall be made as per MAHADISCOM norms. 13.6 - COMMUNICATION The telecommunication facilities available nearby site also studied which shall be useful during execution and maintenance of the plant. The telecommunication network is available at site. It is proposed to get telephone connections to facilitate the proper construction of the project. 13.7- PRE- CONSTRUCTION FACILITIES Site camp office shall be located near the project site and watchman shall be provided for security purposes. Similarly storage shed shall be constructed to receive the equipments and store them in proper conditions till the erection is completed.

13.8 - CONSTRUCTION METHODOLOGY Engineering components of the small hydro generating station mainly comprises of civil works, Electro-mechanical and Transmission works as described below:-

1) Civil Work ∗ Extension of existing Penstock ∗ Power House ∗ Tail Race Channel ∗ Approach road

2) Electro-Mechanical Works ∗ Main inlet valve ∗ Turbine and auxiliaries ∗ Generator and auxiliaries ∗ Gear box

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∗ Cooling water and lubricating system ∗ Electrical switchgear and other Control equipment ∗ Station battery, ∗ Fire protection equipment’s/devices. ∗ Auxiliary power supply ∗ Transformer for station service and power transmission. ∗ Switchyard

13.9 - CONSTRUCTION EQUIPMENTS It is proposed to do the civil works in-house and electro mechanical works done through reputed contractor. To ensure the timely completion required machinery will be procured. 13.10 - MANPOWER PLANNING Work is proposed to be carried out by the contractors and construction management by owner’s Consultants. Proposed organization Chart for construction management is shown below;- Project management All categories of skilled and semi skilled work force locally available will be used to the extent possible. Work is proposed to be carried out by the contractors and construction management by owner’s Consultants. Operation and Maintenance Project Manager Nos 1 Engineer -Electrical Nos 1 Foreman Nos 3 Security Nos 1 The typical schedule for the project is attached.

Assistant Civil Assistant Electrical Security

Project Manager

Engineer ElectricalEngineer Civil Admin. Officer/Accountant

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Operation and Maintenance cost Project: Bembla - HEP Sr. No. Particulars Units Nos Months Per Month Annual

Rs Rs 1 Manpower Project Manager Nos 1 12 25,000 300,000 Engineer -Electrical Nos 1 12 15,000 180,000 Foreman Nos 3 12 8,000 288,000 Security Nos 1 12 5,000 60,000 Sub-total 6 828,000

2 Vehicle Fuel Lumpsum 1 12 4,000 48,000 Driver Nos 1 12 6,000 72,000 Maintenance Lumpsum 1 12 3,000 36,000 Sub-total 3 162,000

3 Insurance Rate Civil Lumpsum 22,007,236 0.25% 55,018 E & M Lumpsum 29,000,000 0.25% 72,500 Sub-total 127,518

4 Spares and consumable Spares Lumpsum 440,145 5.00% 22,007 Consumables Lumpsum 580,000 1.00% 5,800 Sub-total 27,807

5 Administrative Quarters rent Nos 2 12 2,500 60,000 Telephone etc Lumpsum 12 2,000 24,000 Office expenses Lumpsum 12 2,750 33,000 Sub-total 117,000 Total 1,256,325 Grand total Say 12,56,000

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13.11 - CONSTRUCTION SCHEDULE The construction schedule is prepared and attached with the report. During execution of the project PERT /CPM networks will be prepared for each sub activity for close monitoring. In addition computerized project management tools like Prima vera/MS project will be used. Table Schedule for Project Completion

Activity Months 1 2 3 4 5 6 7 8 9 10 11 12

A Civil

1 Extension of Penstock

2 Power house

3 TRP/TRC

4 Approach Road

5 Switchyard

B Selection of E & M Supplier Placement of order

1 Finalization of design Parameters

2 Design and drawings

3 Finalization of vendors

4 Procurement of supplies

5 Storage shed

6 Procurement of crane & erection

7 Erection of equipments

8 Testing and commissioning

C Transmission line

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CHAPTER – 14

COST ESTIMATES The cost estimates are based on the quotations received from the suppliers and contractors and taken into account the prevailing item rates in the region. The total cost of the project arrived at comprises of the following components;- Table: 14.1 Project cost break-up

Cost Components Amount in Rs Lacs 1 Civil 220.07 2 E & M 290.00 3 transmission work 5.00 4 Total (a) cost without IDC & FC 515.07 5 Interest During Construction 22.92 6 Financial Charges 21.15 7 Preliminary & pre-operative exp 35.94 8 Total (b) 80.01 9 Grand Total a+b 595.08 10 Capacity (MW) 1 11 Cost per MW 595.08 12 Margin money for WC 4.47 13 Total project cost 599.56

The details of cost estimates for various project components are appended as Annexure No. - 11.

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CHAPTER – 15

PROJECT VIABILITY 15.1 - FINANCIAL EVALUATION For financial evaluation of the project units generated from 75% dependable yield are considered. It is proposed to complete the project in 12 months. The detail break up of the project cost is as given in Appendix 12A. 15.2 - PHASED DETAILS OF FUNDING The entire project cost shall be spent over a period of 12 months based on the schedule of work construction attached and commercial terms and conditions to be agreed with the suppliers. Based on this the total expenditure has been phased out on quarterly basis and given as Annexure -12B 15.3 - CALCULATION OF IDC Interest during the construction is worked out on the basis of the expenditure involved in each quarter and corresponding loan availed. Interest rate of 12.00% is applied. Total construction time considered is 12 months. The details of IDC are given in Annexure – 12C 15.4 - DEBT-EQUITY RATIO. As per the present norms the Debz e t equity ra*tio of 60:40 is considered and accordingly the loan and equity amounts shall be as follows; SR.NO.Description Rs. Lacs

a Debt equity ratio Debt 60% Equity 40% b Long term loan 357.05c Equity 242.50

Total cost: 599.56

15.5 - LOAN REPAYMENT SCHEDULE Loan repayment schedule of 10 years excluding 1 year construction period & including 6 months moratorium is considered. 15.6 - INTEREST ON LONG TERM LOAN The financials are based on interest rate of 12% per annum as per the prevailing rates. 15.7 - DEPRECIATION Depreciation by Straight Line Method (SLM) is assumed.

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15.8 - SALE OF ENERGY The tariff of Rs.2.84 per unit (base year as year of operation of plant) on the basis of sale of entire energy to MAHADISCOM is considered for evaluation purposes. This is as per the tariff approved by MERC. Escalation of 3 paisa (ps). Every year is also considered. As per GoMWRD dept guidelines escalation after 21 years shall be 5 ps per year till 30 years 15.9 - O&M EXPENSES The financials are worked out on the basis of O & M expenses of 2.0% as per the existing norms with escalation of 4% per year. 15.10 - INSURANCE CHARGES Insurance charges of 0.5% of the project cost are included in the o &m charges. 15.11 - RETURN ON EQUITY The return on equity assumed is 10% which is within the MERC norms.

15.12 - INCOME LAX ON INCOME As per 80-I the income tax on profits made is exempted for first 10 years of its operation in first 15 years of slab. Onwards tax rate of 30% and surcharge of 10% is and education cess of 3% is considered. 15.13 - INTEREST ON WORKING CAPITAL Interest on working capital considered is 13.0% per annum. 15.14 - GROSS ANNUAL GENERATION The gross annual energy generation based on 75% dependable year is 2.28 Million units. The losses and deductions accounted for various reasons shall be as given below.

Description Generation

A Gross generation Units (MUS) 2.28

Plant load factor Percent 26.03

B Losses

1.1 Unit auxiliary Percent 0.5% 0.011

1.2 Transformation Percent 0.5% 0.011

0.022

C Net generation MUS 2.26

Therefore the net saleable units after making the above deductions shall be 2.26 Million units. These are considered for financial viability.

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15.15 - FINANCIAL ANALYSIS. On the basis of the working of the financial analysis the results obtained are. Results Financial Parameters

a IRR 12.70 b Project payback period Years 8.63 c Debt Service Coverage Ratio DSCR Percent 2.04 d Average cost of generation 2.70

The above results are found encouraging for the investment purposes. The detailed working of the financials is given in Annexure 12 B 15.16- CDM CONSIDERATIONS The project activity can evacuate approximately 2.26 Mus of renewable power annually to the Western Regional Grid. The electricity generation from this project will contribute to annual GHG reductions estimated at 1854.78 MT of carbon dioxide equivalent on annual basis. As Bembla Hydro Electric Hydro project falls under clean development mechanism of Kyoto Protocol, CDM funding is considered as one of the major contribution to make the project techno economically feasible. As per the EB 41 Report Annexure 46 page 1, we shall submit necessary information to Ministry of Environment & Forests, Government of India (Host Party DNA) and copy to UNFCCC Secretariat on approval of the techno economic feasibility report. The revenue expected to be generated by sale of CER and impact on IRR shall be as follows:- Particulars Unit Bembla HEP

1 Energy MUS 2.28 2 Emission reduction MT CO2 1,854.78

3 Rate Eueo/CER 154 Revenue Euro 27,8225 Rate INR/EURO 656 Revenue INR/Yr 1,808,406 7 Revenue Rs Cr 10 yrs 1.81 8 IRR With CDM Considerations % 12.709 IRR Without CDM Considerations % 9.61

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AHPPPL was aware of the various barriers associated to project implementation including the financial barriers as above. It was felt that the availability of carbon financing against a sale of carbon credits generated due to project activity would help to overcome these barriers.

The project activity faces the following risks and barriers that would have prevented project proponents investing in the project activity if it was not considered for registering under the CDM.

Prevailing Practice Barriers:

• The conditions in India are conducive for setting up conventional fuel based generating stations because of following reasons:

1. Easy availability of coal as a fuel. 2. Small gestation period of the plant. 3. Ease of expansion of generating capacity. 4. Development of distribution networks for carrying the power to the grid from

remote small hydropower projects 5. All these reasons in one way or the other stopped or limit the development of

hydropower projects in the country. 6. AHPPPL is in the business of Civil construction business and relatively new to

hydro power projects. 7. Still AHPPPL is planning to implement this project to sustain their desire of

using renewable energy sources, in order to mitigate the emissions.

Other Barriers:

• Hydrology risks:

Uncertainty with respect to the availability of water in irrigation canal on which the project is constructed is a major concern. The project activity is purely based on irrigation releases from the Dam. Requirement / consumption of water for irrigation crops are not uniform and not metered.

• Hydro electric project performance is also dependent on rainfall.

• Though sufficient head is available for power generation, due to uncertainty in the hydrology, the power projections may not represent the true situation, which is a barrier for private investments.

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CDM project cycle

Running a CDM project and receiving final registration by the CDM Executive Board requires six steps. These steps are called as the CDM project cycle, and are put in place in order to protect the actual climate benefits of CDM project activities.

CDM Project stage wise activities and responsibility of implementation shall be as under. Sr. No

Stage Activity Responsibility

01 Project Design Phase Project Design Document

Project Developer

02 Project Design Phase Host Country Approval Designated National Authority

03 Project Design Phase Validation Designated National Entity

04 Project Design Phase Registration Executive Board 05 Project Operation

Phase Verification Designated National

Entity 06 Project Operation

Phase Issuance of CER’s Executive Board

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15.17 - ASSUMPTIONS IN FINANCIALS

Details of the project a Name of the project Unit Bembla

b State where the project is situated State Maharashtra

c Proposed capacity of the project Machines 1.0 Capacity 1,000 KW 1,000

d Project completion schedule Months 12 2 Generation and sale of energy

a Annual generation from the project Lacs Unit 22.80

b Plant load factor Percent 26.00% c Losses: Auxi. 0.5%, transfo 0.5% Percent 1.0% d Annual generation after losses Lacs

Unit 22.60 e Selling rate to MSEDCL considered Rs/Unit 2.84

f Escalation in the selling rate Rs./ Unit/Year

0.03

g Electricity duty Percent NIL 3 Operation and maintenance

a O & M Charges-Inclu. of administrative expenses, spares, consumables & Insurance

Percent 2.00%

b Escalation in the O & M expenses Per year 4.00%

c Royalty on water Escalation 5% Rs/Unit 0.05

d Land lease charges Escalation 5% Rs/KW/Yr 0.05

e Maintenance of penstock Escalation 5% Rs/KW 0.05 4 Long term loan a The interest rate Percent 12.00% b Less: rebate for timely repayment Percent 0.00% c Net interest rate 12.00%

5 Interest rate on working capital loans Percent 13.00%

6 MNES subsidy Rs. In lacs 150.00

CER Sale 17.90 7 Depreciation

a Life of plant assumed for working of depreciation Year 30

8 Financial Parameters a Debt equity ratio Debt 60% Equity 40%

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b Equity Rs. Lacs 242.50 c Long Term loan Rs. Lacs 357.05 d Total cost Rs. Lacs 599.55 e Cost Per MW Rs. Lacs 599.55 f Income tax holiday Years 10.00 g MAT 10.00% Surc

harge 10.00% E. Cess 3% Percent 11.33%

h Income tax rate after 11th year 30% Surcharge 10.00% E. Cess

3% Percent 33.99%

9 Return on Equity 10.00%

10 Results Financial Parameters

a IRR Percent 12.70 b Project payback period Years 8.63 c Debt Service Coverage Ratio DSCR 2.04 d Average cost of generation Rs per

Unit 2.70

Page 43 of 140

PART- II

ANNEXURES

ANNEXURE – 2A Table: Rainfall data Station Babhulgaon Lattitude 20 Unit mm District Yavatmal Longitude 78 Data 1995-96 to 2004-05

Year Jun July Aug Sept Oct Nov Dec Jan Feb Mar Apr May Annual 1995-96 41.0 34.0 53.0 1.0 0.0 129.0 1996-97 277.0 314.2 175.8 203.0 72.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1042.0 1996-97 16.0 363.9 336.4 231.0 83.0 0.0 0.0 5.0 0.0 9.0 0.0 7.0 1051.3 1997-98 77.8 125.2 81.8 147.0 90.0 23.0 60.0 45.6 26.6 31.6 0.0 0.0 708.6 1998-99 78.3 245.0 231.8 200.6 29.2 49.7 0.0 0.0 29.6 0.0 0.0 22.8 887.0 1999-00 104.7 181.4 225.5 317.0 95.6 0.0 0.0 0.0 0.0 0.0 0.0 0.0 924.2 2000-01 230.2 301.1 168.3 43.9 32.0 0.0 0.0 16.9 0.0 0.0 0.0 0.0 792.4 2001-02 279.9 210.9 348.4 36.9 121.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 997.1 2002-03 264.0 38.0 288.0 100.0 75.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 765.0 2003-04 130.0 287.0 273.0 56.2 72.0 0.0 0.0 26.0 0.0 0.0 0.0 0.0 844.2 2004-05 115.0 134.0 113.8 56.0 19.0 0.0 0.0 437.8

Average 157.3 220.1 224.3 139.2 68.9 7.3 6.0 13.5 9.0 9.4 0.1 3.0 844.00

Average Monthly Rainfall At- Babhulgavan, Dist - Yeotmal Year 1995- 2004

0

50

100

150

200

250

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Months

Rai

nfal

l in

mm

Monthly Total Rainfall[mm]

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Station Kalamb Lattitude 20 Unit mm District Yavatmal Longitude 78 Data 1994-95 to 2003-04

Year Jun July Aug Sept Oct Nov Dec Jan Feb Mar Apr May Annual 1994-95 41.0 9.2 80.0 10.0 3.4 143.6 1995-96 261.8 377.0 178.0 251.0 160.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1227.8 1996-97 76.0 311.9 334.4 127.4 124.2 4.0 0.0 7.0 0.0 0.0 0.8 0.0 985.7 1996-97 99.0 138.8 153.4 152.6 18.8 26.7 41.5 11.0 0.0 0.0 0.0 0.0 641.8 1997-98 103.1 216.5 296.2 229.0 41.8 55.0 0.0 1.8 30.2 0.0 0.0 8.2 981.8 1998-99 141.2 329.9 183.0 251.8 159.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1064.9 1999-00 148.0 168.4 192.0 48.2 0.0 0.0 0.0 39.0 0.0 0.0 0.0 0.0 595.6 2000-01 275.0 192.0 269.1 4.0 91.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 831.1 2001-02 336.0 180.0 541.0 117.0 32.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1206.0 2002-03 196.0 406.0 338.0 165.0 57.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1162.0 2003-04 78.0 115.0 158.1 38.0 12.0 0.0 0.0 401.1

Average 171.4 243.6 264.3 138.4 69.6 8.6 4.2 10.0 3.9 8.0 1.1 1.2 924.1

Average Monthly Rainfall At- Kalamb, Dist- Yeotmal Year 1995 - 2006

0

50

100

150

200

250

300

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Months

Rai

nfal

l in

mm

Monthly Total Rainfall[mm]

Page 46 of 140

Station Yavatmal Lattitude 20 Unit mm District Yavatmal Longitude 78 Data 1995-96 to 2004-05

Year Jun July Aug Sept Oct Nov Dec Jan Feb Mar Apr May Annual 1995-96 0.0 3.8 10.8 18.8 3.1 36.5 1996-97 32.0 298.2 270.9 86.5 0.0 0.0 16.0 0.0 0.0 4.4 6.9 714.9 1997-98 113.0 179.2 130.6 222.2 24.0 61.6 86.7 47.6 11.2 47.6 4.4 9.4 937.5 1998-99 119.7 309.5 130.8 185.6 10.2 62.4 0.0 0.0 41.4 0.0 0.0 68.0 927.6 1999-00 200.7 308.4 252.8 319.5 58.2 0.0 1139.6 2000-01 0.0 27.4 0.0 10.2 34.0 71.6 2001-02 523.0 116.7 407.9 1.4 176.3 0.0 0.0 0.0 24.8 0.0 2.8 1252.9 2002-03 479.2 133.5 351.0 100.8 76.2 0.0 0.0 0.0 0.0 2.8 13.0 0.0 1156.5 2003-04 125.4 415.0 379.2 76.4 72.8 0.0 13.9 61.6 0.0 0.0 59.8 59.8 1263.9 2003-04 112.2 75.8 1.4 0.0 81.8 6.6 8.8 286.6 2004-05 133.7 556.5 302.6 119.6 1112.4

Average 172.7 231.7 222.6 113.8 58.0 12.5 10.1 23.4 8.8 7.1 13.7 15.6 890.0

Average Monthly Rainfall At- Yeotmal, Dist - Yeotmal Year 1995 -2004

0

50

100

150

200

250

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Months

Rai

nfal

l in

mm

Monthly Total Rainfall[mm]

Page 47 of 140

The hydrological data considered for dependability calculation is from 1931 to 2000.

Average rainfall during this period is 836 mm. We had subsequently collected the rainfall

data for last few years. i.e. from 1995-96 to 2004-05. The annual average rainfall at

Babhulgaon which is considered as representative is 844mm which is in line with the

hydrological data and hence considered as appropriate.

Page 48 of 140

ANNEXURE– 2B

Page 49 of 140

The proposed scheme is planned for annual utilization of 511.91 Mcum.

Page 50 of 140

_]I

n .

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- ] BEI14BLA RIVER PROJECTr]ABHULGAON

DIST., YAVATMAL

YIELD IN DECENDING oRDE,R FoR SERIES 193i : ;ObO

I t' ! s

Sr No. YEAR

Tlryrj.lnrw.^cu f f .

T.M.c.lNcr-lM.CUM

U/Sreservati

onTotelYield

P.M,Ffow3o/o,

N6t Yietdin MmiS

1 a

5 61 1970 2A,487 1295 .19

1224.2601981 20,u7 1188.602 35.661267.37't93119.92 43 A?

tuo.565 1160.783 34.82 1'195.6074 1933 19.478 tro.5d5 1128.853 33.87 1162.7.19

, l roJ i 17:512 39 1037.80

/ n 106.585 1124.826 s3.74 1151R 476 i;:.;=--t--rvoo | . 16 .930

r l u l . U 6

1070.3;O106.585 1000.493 30.01 1030.508

i:)491934

37.68,106.585 963.71 I 2B.91 992.631

37 6,1106.585 960.450 28.81 989.264

1914 15-r ur"-ct'o 959.1A4 28.78 s87.960J q<c

15-7761000.76997.37e654Z

106.585 894 171 26.83 920.996t t I 193s -

I 1t i7q15.271 34 na

106.585 890.786 26.72 s17.50912 i4.493 106.585 25.76 884.5951 3 i 994 916.24 106.5S5 809.659 833.9491 d 1975 914 .1 8 106.585 807.596 24.23i J . / ' t 0 ?n a {

30.37| 866.75!--:-.+

831.824r c 1990 13 6n?

'turi.5B5760.1 67 '22 n1 782.972,

t o 1938 I rJo.3d5 7 q a a a o13..491 ?n 852.8r 22.64 775,9381q<r: I

I:=.::'--.-{ 1mi- 06.585 746 )R1 22.3e 768.6691 . 9t ozY.4 l 834.56

-106.585t v / . ! |

- + . {

19S2 |11.8it7 26 3C 747.O7

t z t . v / | 21.A 749.81611 3AR 25.38

?{ no

tuo.56i 640.4E6 . 1.921 AGO20 1 crqe 11.23t

718.69TToE-7Ac 1'7

104 qn< 6 1 2 . 1 0 1 't8.36630.464

21 194?- 11.2 06.58s 603.702 4 A 1 1 621.81312

.4J

.u4 106.585 602.5871'olz 24.72 iiqo o4AO7 ' ;L '

T'r6.oB

620.6641941't 1:0i7 24 6/ 593.361

5etia1'r.8017.74

6 1 11 6.2425

1s61 l: IoFJE- I l r J . 9 d cT---i:- 608.912

1937 f0.6s-A7F 2a

672.85i r l 1 - ;

550 .1564Jt 7"

tiaA n.l i

I tuo.)d5 578.600 17.36 595.95Szo 10.64 2376

''iuri.5il5569.783 1 7 0 q s86.876^ r . t

. z t I--.=-t. | 106 5Sst----:+

566.265'r0.55)a, <,2

? i ' r 1

22.91zz.aA

'1b.99s83.252

16 'i clAo

1 Q A - '

560.589 to.aZ 577.407z9 I 10 2a) J$.585 5s3.s6t 16 .61 57At72-{ t

l O < z ; u2j43 16.26 558.408

32I t v6LJ

| 1S7B10.171 22.71

zz.z l64h;-J 1

sz+u.z1g 16.21 556 4)a9.953 ,o.585

,a .Jd5536.438 16.09 552.531

1948 9.a74- 2 1 . u 3 'I t (-r:-j 522.ffi1 15.68 538.3412 A 1 980 98/ ,2

9 .783 - :21 0-7 622.21

6 1 8 r o

I uo .565 517.ffi6 1 5 { " 533.196;; 1943

197' i2 1 . U

ori.585 51s.6215 1 1 . 9 0 5

1 t r A a 531,090q 1 A < 20 51 l-EE;-A-a-f 527.263 50

/4 .09 , + . l z 488.320

I).a

h Jnp, '

Page 51 of 140

1 Z 4 5 6 7 U37 1945 8-458 18.88 53r'..72 106.s85 428.1 36 12.U 440.980

1960 8.452 18 .87 534.31 106.585 427.727 12.83 440.5593 9 . I AO? 8,438 18.84 533,47 tuo.coc 426.885 12.81 439.69240 1951 7.889 17.61 498.7"1 1.06.585 392.126 11.76 403.89041 1957 7:79'l | / - J } j 492.56 106.585 385.978 1 1 . 5 8 397;557

1 976 7.746 I l - 1 J 489.72 '106.585 383.1 34 I t . 4 V 394.6281946 7.351 ' 16 .41 464.72 106,585 358. 1 36 10.74 368.880

44 1974 7 ??q 1 A ? A 463.71 106.585 357.128 10.71 367.8421941 7.309 16.32 462.07 106.585 3s5.482 10.66 366 146

+o 194: 7.O49 1 E - 7 A445.63 I U O . J O J 339.044 t u . t 1 349.216

47 1964 6.906 4 E A '+JO.Cb 106.585 J Z g . V t V 9.9C ??o R7A

48 1968 6.890 1 q ? R 435.61 106.s85 329.O24 9.87dq 1932 6.812 15.21 430,67 106.585 324 081 9.72 313.803

1956 6.802 1 q 1 C 430.05 106.585 323.462 v . t v 333.1 66., 51 1995 6:640 14.82 419.77 106.585 31 3 .1 88 9.40 32A.ffiA

1939 6.629 14.B0 419.07 106.585 312.4A7 .9 .37 ' 321.4621996 6.310 14.09 398.94 106:585 292.351 8.77 301.122

E A . lYoo 6.249 I J . Y J 395-04 106.585 288.455 8.65 297.1 091972 6.237 13.93 394.32 I nA 4e< 287.738 8.63 l v o . S t u

1 982 6.22A 13 .89 393.25 106.585 286;ffi1 8.60 zvo-ZO It : 6.196 1:3.83 391 .72 10e .BB5 285.1 40 A t i q 293.694.qR 1997 6.136- 13.70 387.92 106.585 281 .339 8.44 289.7193Y 1 AAC 5,937 13.25 375.32 106.585 a( ) tJ . /J t 8.06 276.799OU 198/, .5.424 12.11 342.89 106.585 ZJO.JU I 7.O9 243.3906 1 ?000 5.286 11 .80 334.20 106.585 227.612 6.83 2U.440ol .1963 s.257 11.74 332.32 106.s85 225.731 6.77 z5z.)\JJ

63 1971 5.052 11.28 319.41 106.585 z I z -6zv 6.38 219.205&{ 1952 5.026 11.22 317.77 106.585 L I 1 1 8 1 6.34 21V .516

1 0A( 5.011 316.82 106.585 214.238 6.31 a 1 a t r 4 t r

oo 19B6 .4.937 11.O2 312.11 106.585 tuc.czo 6 . 1 7 211.69267 1987. 4.003 8.94 253.10 106.585 146.512

' 4 ;40 150.907D11 19S1 3.7'5S E.39 23't.62 i06.585 131.036 2 ( l ? . , '134.967

ov tYo / J . J I O 7.40 209.64 106-585 l na nq,q 3.09 106.14670 '1950 2.AM o.zo 177.24 106.585 70.e59 z . t z . ( 1 . t I J '

7Eo/ods:409 -

n*tM* Engneer

I BemHd project Dfotlryl.,1? . YAVATMALS/lwrtA

Page 52 of 140

irir.Ytrxlfil:.*j\

BEMBLA RIVER PROJECT, THALEGAON, Dist. YAVATMALArea Capacity Table

(As per CDO drg. No. pL-3/BRp/9S)

5r.tlo.

ReducedLevel

Revisedarea

RevisedCapacitv

1 259.00 0.0000 0.0000z 259.96 0.0000 0.0000

260.00 0.0215 0.00044 260.10 0.4718 4.21715 260.20 o,s?'21 0.43386 260.30 1.3724 0.65047 260.40 1.8227 0 .8671A 260.50 2.2731 1.0838

260.60 2.7234 1.3005I U 260.70 3.1737 1 R 4 a .

t . 9 t t z

1 1 260.80 3.6240i 2 260.90 4.0743 I OqnrI J 261.00 4.5246 2.16721 4 261.10 4.8103 2.7593, 1 4 261.20 5.0959 2 "1E,1 a

1 6 261_301 53816 3.94351 7 ?91.401 5 6672 4.535618 | 261,5C 5.e52el

--812771e l 261.6c 6.2386i s i197201 261.70 6.324 6 .31 8211 261.80 6.809S 6.9039221 261.e0 7,0955 7.4960231 262.00 7.3812 8.0881241 26210 8.2301 9.234625I Mfr 9.0790 10 .381 1261 26;.:0 9.9279 11.5276271 262A0 10.7768 12.6741281 262s0 11.6257 13.82062el 26260 12.4746 14.9671301 'Fu76 13.323si 1 6 . 1 1? 262.8A 14 .1724 17.260132 262.90 15.0213 1 8.4066?? 10z.vY 15.7742 19.394934 263.00 15.8702 -19 5531A E 263,101 16.5154 21.4562?A 263.20 17,1607 23.359337 263.30 17,8059 25.26238 263.40 18.45121 -7r6s539 263.50 19.0964 29.0687

263.60 19.7416 30.97 1 84 1 263.70 20.3869 32.874942 263.80 21.0321 ;- 34.778043 263.90 21.6774 36 ,681144 204.00 zz .azzo 38.58421946

?64.1 0 23.0592 41.1784264.20 z J . t v J l 1 + J . t I I I64.30 ?1. 8")'),

. 4 8q Y

5

264:0 25.2688 48.961 22b4.50EAEb 26.0054

)A 7t t^

( , , I R R E I

q l 264.70 27.4785 56.7439J I 264.80

59.3381t ? 264.96_ 28 .951q? O a o o a

_q_1_932{64.5266

54 265.00cc 265.10-:--+56 265.20

o z t 4 67.9091

265.30. r go /- 71 2916

qR 265.40 3#H /4 .6741

\ f

NoReduced

LevelRevised

areaRevisedCapacltl

61 zoc . I u 35.5628 88.2041az 265.80 36.4020 91.5866

265.90 T.i413 94.969164 Z O O . U U 38.0805 98.3516A A 266 ,10 39.2959 102.7590

zoo.lv 4 0 . 5 1 1 3 107.166567 l ob . JU 41,7267 1 1 1 . 5 7 3 9

266.40 42,9421 115 .9814266.50 44.1573 120.3888

I U 266.60 45.3729 124.796271 266.70 46.5883 129.2037t z 266,80 47.8037 133.61I

I7') 266.90 49.0191 138.01o74 267.00 50.2345 142/260

267.10 5 2 . 1 1 9 3 148.517276 267.20 54.0042 154.6084.

267.30 s5.8890 160.6997t 6 267.40 57.7738 166.7909T J 267,50 59.6587 172.882180 267.60 61.54351 178.97338 1 267,70 63.4283 185.064sa t 267.80 65.31 31 1 91 .1 558O J 267,90 67.1980 197.247(84 | 268.00 69.0828 203.338:851 266J0 70,4240 214,9072AI 268.20 | 71.75s2 218.476i8 268.30 73.1065 ?26,c451

iI!I

IIIII

IIII!i

iI

!i

I

II

II

I

et 268.401 74.4477 233.6141A O 268.s01 75.788s 241.1831on 268.6( 77.1301 248.7521

268.701 78.471s 256.3211Y I 268 801 79 .8126 263.8900

zod . vL R t 16 ' , r a 271.459A94 269.001 8z4eso 279.A2E0

269.1A 83.9302 287.6344zov . lv 85.3654 296.2408269.30 86.8006 304.8472

v6 269.40 88.2358 313.4536269 50 89 6710 322.0600

1 0 0 269.60 335.6281101 zoY . I u 344.7534t v z rov.6u 354.0221103 269 90 363.4343104 270.00 372.9500

270.10 382.6891r u o 270.20 392.5317107 270,30 402.5178108 270.40 412.6473109 z t v . c u 422.92031 1 0 z I v . o u 433.3367

270.70 443.89664s4,6000

z I v ,vu 4e5.44684 459.

Avrng'q,yrC

oc)E

a-goo-(sL

xLrj

Page 53 of 140

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i O l O l r l r li F : i . : i s l i t s l d lI o i o l o i o l i

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r l r i i

i i i_r : i - f -i s i 3 ! 3 iB l3 li q i ' : i d ? i a l c i l| @ i o ' o l ) :

i ' i l l l ti_t l i i iI o l o i F i q l q , Ii o l - l O l A l s 'I 9 i c ' l l e l d l o li ; i ' i - ! - l It l t t i ll l i i l il . - . - . 1 . . 1 . . ; i . ,l 3 i C i S i N i S rl q l a ? i c ? l r i i o !l o i ' i - i i :t i i i t ii . - t " t i l i

i iE i=iElsitli i i, i i-ii i i i li , i t r l

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Page 54 of 140

ANNEXURE‐ 2 E

Working table Bembla HEP 75% Dependable year Levels Rated conditions Efficiency η

F.R.L. 269.50 M 322.06 Mcum Power A 1000 KW Turbine 93.9% Turbine Vertical Radial KaplanM.D.D.LP 265.11 M 68.24 Mcum Discharge D 18.44 m3/sec Generator 95.5% H operating 140% to 50%M.D.D.L I 262.99 M 19.39 Mcum Head D 6.29 M Gear box 98.0% Q Operating 115% 40%T.W.L.Min 259.70 M Machines 1.00 Nos. System 87.9% H loss(HL) 0.711 mT W L Max 260 65 M Unit Capacity 1000 KW Flow/Unit 18 44 m3/sec Avail Q M 44 46 cumecsT.W.L.Max 260.65 M Unit Capacity 1000 KW Flow/Unit 18.44 m /sec Avail. Q Max 44.46 cumecsHead range Power Generation Capacity range Head range Power Generation Flow rangeMin 3.50 M Power Min 400 KW Min 2.79 M Min.Flow 7.38 m3/secMax 9.80 M Power Max 1150 KW Max 9.58 M Max.Flow 21.21 m3/sec

Sr. Month Inflow Regenration Total Upstream Losses Total Withdrawl

Mean TWL

Head R Flow R Power UR Power R Energy Remarks /PLF

No. Irrigation Power RL Capacity Content Reservation Canal Irrigation Dehni Lift Drinking Spills Evaporation Ecology RL Capacity Qty Discharge Level Gross NetDays Days M Mcum Mcum Mcum Mcum Mcum Mcum Mcum Mcum Mcum Mcum Mcum Mcum M Mcum Mcum Cumecs M M M M M Cumecs MUS %

= 6+7+8 =10+11+12+13+14+15 =9-16 = 10+11+13 =(5+17)/2 =21-22 =23-HL =28*4*(24)/(10^6)1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 301 June 24 0 262.99 19.39 0.00 19.39 - 0.27 0.43 2.72 - 5.36 - 8.78 262.22 10.61 0.27 0.13 262.61 258.75 3.85 3.66 - - 4 - - <MDDL2 July 24 0 262.22 10.61 114.29 124.90 29.78 - 0.43 2.72 - 1.91 - 34.84 265.75 90.06 - - 265.43 258.67 6.76 6.57 6.57 - - - - QLow3 Aug 24 0 265.75 90.06 119.15 209.20 31.05 0.83 0.64 2.72 - 5.33 - 40.57 267.43 168.63 0.83 0.40 266.59 258.84 7.76 7.56 7.56 - 26 - - QLow4 Sept 24 0 267.43 168.63 143.51 312.14 37.40 6.60 0.73 2.72 - 6.93 - 54.38 268.72 257.76 6.60 3.18 268.07 259.28 8.79 8.59 8.59 - 236 - - QLow5 Octo 24 24 268.72 257.76 32.07 289.83 8.36 37.77 5.10 2.72 - 10.20 - 64.15 268.30 225.68 37.77 18.21 268.51 260.47 8.03 7.33 7.33 18.21 1,152 1,150 0.66 6 Nov 24 24 268.30 225.68 9.99 235.67 - 34.39 2.31 2.72 - 7.18 - 46.59 267.77 189.07 34.39 16.58 268.03 260.37 7.66 7.05 7.05 16.58 1,007 1,007 0.58 7 Dec 24 24 267.77 189.07 5.39 194.46 - 42.16 3.09 2.72 - 4.44 - 52.41 266.99 142.05 42.16 20.33 267.38 260.60 6.78 5.89 5.89 20.33 1,032 1,032 0.59 8 Jan 24 24 266.99 142.05 2.40 144.45 32.64 3.86 2.72 - 3.92 - 43.14 266.07 101.31 32.64 15.74 266.53 260.32 6.21 5.64 5.64 15.74 765 765 0.44 9 Feb 24 0 266.07 101.31 1.19 102.50 7.53 2.86 2.72 - 4.95 - 18.06 265.59 84.44 7.53 3.63 265.83 259.33 6.50 6.28 6.28 - 197 - - QLow

Days Opening Releases Closing

KW=9.81QHη

Head Water available for Generation

10 Mar 0 0 265.59 84.44 1.01 85.44 - 0.67 2.72 - 9.15 3.00 15.54 265.16 69.90 - - 265.37 258.67 6.70 6.51 6.51 - - - - QLow11 April 0 0 265.16 69.90 - 69.90 - 0.27 2.72 - 9.16 3.00 15.15 264.62 54.76 - - 265.13 258.67 6.46 6.27 6.27 - - - - QLow12 May 0 0 264.62 54.76 - 54.76 - 0.68 2.72 - 11.23 4.00 18.63 263.87 36.13 - - 264.25 258.67 5.58 5.38 - - - - - <MDDL

216 96 428.97 0.00 106.59 162.19 21.07 32.63 0.00 79.77 10.00 412.24 162.19 2.28 26.00%

Note1) As per TAC note of CWC 162.2 Mcum of water shall be available for use through canals.2) The crop water requirement is taken on prorata basis on the guide lines given by CWC for the total crop water requirement a/c to modified penman method ( i.e. 201.372 Mcum)

For Wat-ere-source Technologies Pvt. Ltd. Arch Hydro Power Projects Pvt. Ltd.

Authorised Signatory Authorised Signatory

Executive Engineer Bembla Project Division

Yavatmal

Sd /- Sd /- Sd /-

Superintending Engineer Yavatmal Irrigation Circle

Yavatmal

Chief Engineer Water Resources Deptt.

AMRAVATI

Page 67

Page 55 of 140

ANNEXURE‐ 2 E

Working table Bembla HEP 50% Dependable year Levels Rated conditions Efficiency η

F.R.L. 269.50 M 322.06 Mcum Power A 1000 KW Turbine 93.9% Turbine Vertical Radial KaplanM.D.D.LP 265.11 M 68.24 Mcum Discharge D 18.44 m3/sec Generator 95.5% H operating 140% to 50%M.D.D.L I 262.99 M 19.39 Mcum Head D 6.29 M Gear box 98.0% Q Operating 115% 40%T.W.L.Min 259.70 M Machines 1.00 Nos. System 87.9% H loss(HL) 0.711 mT W L Max 260 65 M Unit Capacity 1000 KW Flow/Unit 18 44 m3/sec Avail Q M 44 46 cumecsT.W.L.Max 260.65 M Unit Capacity 1000 KW Flow/Unit 18.44 m /sec Avail. Q Max 44.46 cumecsHead range Power Generation Capacity range Head range Power Generation Flow rangeMin 3.50 M Power Min 400 KW Min 2.79 M Min.Flow 7.38 m3/secMax 9.80 M Power Max 1150 KW Max 9.58 M Max.Flow 21.21 m3/sec

Year 1939

Sr. Month Total Upstream Losses Mean TWL Head R Flow R Power UR Power R Energy Remarks/PLF

No. Irrigation Power RL Capacity Content Reservation Irrigation Dehni Lift Drinking Spills Evaporation Ecology RL Capacity Qty Discharge Level Gross NetDays Days M Mcum Mcum Mcum Mcum Mcum Mcum Mcum Mcum Mcum Mcum Mcum Mcum M Mcum Mcum CUMEC M M M M M cumecs MUS %

= 6+7+8 =10+11+12+13+14+15 =9-16 = 10+11+13 =(5+17)/2 =21-22 =23-HL =28*4*(24)/(10^6)1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 301 June 24 0 262.99 19.39 0.00 0.64 20.04 - 0.27 0.43 2.72 ‐ 5.36 - 8.78 262.28 11.25 0.27 0.13 262.63 258.75 3.88 3.69 - - 4 - - <MDDL2 July 24 0 262.28 11.25 140.47 0.64 152.37 29.78 - 0.43 2.72 ‐ 1.91 - 34.84 266.43 117.53 - - 265.77 258.67 7.10 6.91 6.91 - - - - QLow3 Aug 24 0 266.43 117.53 146.45 0.64 264.62 31.05 0.83 0.64 2.72 ‐ 5.33 - 40.57 268.27 224.04 0.83 0.40 267.35 258.84 8.52 8.32 8.32 - 29 - - QLow4 Sept 24 24 268.27 224.04 176.39 0.64 401.07 37.40 6.60 0.73 2.72 62.76 6.93 - 117.14 269.06 283.93 69.36 33.45 268.67 261.30 7.36 5.53 5.53 21.21 1,595 1,011 0.58 **5 Octo 24 24 269.06 283.93 39.42 0.64 323.99 8.36 37.77 5.10 2.72 ‐ 10.20 - 64.15 268.75 259.84 37.77 18.21 268.90 260.47 8.43 7.73 7.73 18.21 1,214 1,150 0.66 **6 Nov 24 24 268.75 259.84 12.27 0.64 272.76 - 34.39 2.31 2.72 ‐ 7.18 - 46.59 268.30 226.17 34.39 16.58 268.52 260.37 8.15 7.54 7.54 16.58 1,078 1,078 0.62 7 Dec 24 24 268.30 226.17 6.63 0.64 233.43 - 42.16 3.09 2.72 ‐ 4.44 - 52.41 267.63 181.02 42.16 20.33 267.97 260.60 7.36 6.54 6.54 20.33 1,147 1,147 0.66 8 Jan 24 24 267.63 181.02 2.95 0.64 184.61 - 32.64 3.86 2.72 ‐ 3.92 - 43.14 266.98 141.47 32.64 15.74 267.31 260.32 6.99 6.42 6.42 15.74 871 871 0.50 9 Feb 24 24 266 98 141 47 1 46 0 64 143 57 37 84 2 86 2 72 4 95 48 37 265 91 95 20 37 84 18 25 266 44 260 48 5 97 5 27 5 27 18 25 828 828 0 48 #

Releases Total Withdrawl

Water available for GenerationWater available Opening Inflow Regenration

KW=9.81QHη

Closing Head

9 Feb 24 24 266.98 141.47 1.46 0.64 143.57 - 37.84 2.86 2.72 ‐ 4.95 - 48.37 265.91 95.20 37.84 18.25 266.44 260.48 5.97 5.27 5.27 18.25 828 828 0.48 #10 Mar 0 17 265.91 95.20 1.24 0.64 97.08 - 29.65 0.67 2.72 ‐ 9.15 3.00 45.19 264.51 51.89 29.65 20.19 265.51 260.59 4.91 4.10 4.10 20.19 714 714 0.29 #11 April 0 0 264.51 51.89 0.00 0.64 52.53 - 0.27 2.72 ‐ 9.16 3.00 15.15 263.94 37.38 - - 264.22 258.67 5.55 5.36 - - - - - <MDDL12 May 0 0 263.94 37.38 0.00 0.64 38.03 - - 0.68 2.72 ‐ 11.23 4.00 18.63 262.99 19.39 - - 263.46 258.67 4.79 4.60 - - - - - <MDDL

216 161 527.27 7.70 106.585 222.16 21.07 32.63 62.76 79.766 10.00 534.96 284.92 3.80 43.34%** Discharge through penstock is limited to maximum flow for generation or actual discharge required for irrigation, whichever is higher. 0.00000 # Excess water in 50% dependable year is relesead for power generation

Page 67

Page 56 of 140

ANNEXURE – 3 AREA CAPACITY CURVE

Page 57 of 140

ANNEXURE – 4A FLOW DURATION CURVE

ANNEXURE – 4B HEAD DURATION CURVE

Page 58 of 140

ANNEXURE – 4C TAIL RACE RATING CURVE

ANNEXURE – 4D POWER DURATION CURVE

Page 59 of 140

ANNEXURE – 5 Calculation of MDDL – Power

S.No. Particulars Unit Data/Formulae

A Design data 1 F.R.L. m 269.50 2 MDDL-Irrigation 262.99 3 T.W.L.min m 259.70 4 T.W.L.max m 260.65 5 Diameter of penstock at Intake m 3.80 6 Diameter of penstock m 2.50 7 Sill level of penstock m 259.95 8 Rated Net head (Design) m 6.29 9 Losses w.r.t. Qmax m 0.88 10 Losses w.r.t. Qmin m 0.23 11 Losses w.r.t. Qrated m 0.71

B Calculations by different methods 1 Method -1 MDD-Power m = MDDLIrrigation

m 262.99 2 Method -2 Gross Head min m = MDDL(I)-TWL max

2.34

Gross Head max m = FRL - TWL min

9.80

MDDL-Power = T.W.L.(max)+Min Head

m 262.99 3 Method-3 Turbine operation head From To

Operating head for selected turbine 150% 50%

Maximum Gross head m = FRL -TWLmin

9.80

Maximum net head (after losses) m 9.58

Rated gross head m =Max Gross head / Max head variation

7.00

Rated net head (after losses) m 6.29

Page 60 of 140

S.No. Particulars Unit Data/Formulae

Min. Gross head m =Rated gross head * Min head variation

3.50

Min Net head (after losses) m 2.62

MDD L-power =Hmin (net) +TWL max

+Losses

264.16 4 Method-4

Calculations for suction deprth ( Vortex)

As per J.L.Gordon Formula page 72 of Chapter‐81 of Emil Mosonyi Suction depth h= m 0.543 * v * (D) ^0.5

Where, h= 0.543 constant for symetrical inflow

Design Data

1 Outlet sill RL m 259.95

2 Dimater of penstock D mm 3800

m 3.8

3 Velocity in the penstock v m/sec =0.075 x ( 2 x g x H )^0.5 1.052

Where, v=

Velocity ‐ as per Masonyi to eliminate eddies & vortices

Hand book of Hydro Electric Engineering Page 1204

V<=0.075 (2 x g x H )^0.5

Therefore,

Suction depth h= m 0.543 * v * (D) ^0.5

m 1.11

MDDL ( P) MDDL(P) m

=Outlet sill level +Dia. of penstock+Suction depth

= 264.864 5 Method-5

Calculations for min. submergence required for penstock

As per International centre for integrated mountain development , Page‐ 60

h Submergence = h= m 1.5 V^2/ 2x g

Design Data

1 Top of bellmouth ( Penstock Crown ) m 264.85

2 Dimater of penstock D mm 3800

Page 61 of 140

S.No. Particulars Unit Data/Formulae

m 3.8

3 Velocity in the penstock v m/sec 1.83 Where, v= Velocity ‐ as per TNEB Handbook page 1.6

Therefore,

h Submergence = h= m =1.5 V^2/ 2x g

0.26

MDDL ( P) MDDL(P) m =Penstock crown +h

submergence

= 265.106 6 Method-6

As per IS 9761 ‐ 1995

Calculations for min. submergence required for penstock

For large size Intakes at power plant

Fr = m v / (g D )^0.5 <= 1/3

Design Data

1 Sill level of penstock m 259.95

2 Dimater of penstock D m 3.2

3 Design discharge Qd Cumecs 44.46

Therefore,

1 Centre line of penstock

Sill level of penstock + 1/2 Dia of penstock

261.55

2 Froude number Fr = v / (g D )^0.5

Area of penstock A m 8.04

Therefore, Intake Velocity v m/sec 1.50

Fr = 0.27

Fr < 1/3

Therefore, submergence h = h = 1.00 x D

= 3.20

MDDL ( P) MDDL(P) m =Penstock centre line +h

submergence

= 264.750

Summary of alternatives 1 Method-1 m 262.990 2 Method-2 m 262.990 3 Method-3 m 264.113 4 Method-4 m 264.864 5 Method-5 m 265.106

Page 62 of 140

S.No. Particulars Unit Data/Formulae 6 Method-6 m 264.750

Since penstock provided is higher side we consider results of method-5 265.106

Therefore MDDL Considered m 265.106

Page 63 of 140

ANNEXURE – 6 Computation of Head Loss in water conductor system

(A) For Maximum, Rated And Minimum discharges A Design data Operating head range Operating load

(I) Pond level at intake /diversion M FSLI 269.500 Max 140

% of rated Max 115% of rated

(ii) MDDL-Power m MDDL 265.106 Rated 100

% Rated 100%

(iii) Gravity constant m/sec2 g 9.810 Min 50% of rated Min 40% of

rated (iv) Co-efficient for frictional loss f 0.014 (v) coefficient for bend loss P 0.063

(vi) Design discharge cumecs

Qd 21.21

(vII) Nos of unit Nos N 1.000 (VIII) System Efficiency % 87.79%

Discharge and TWL

Max Rated Min/Unit

Discharge cumecs Qd 21.21 18.44 7.38

T.W.L. m TWL 260.65 260.49 259.70

A Head loss calculations Q 21.21

Sr.No.

Loss Unit Shape No Length Diameter Discharge Area Velocity Loss

Formula Loss

m m cumecs sqm m/sec m

1 Trash rack losses m 2.30 44.46 0.75 = ( 0.5 * Vt2)/(2*g) 0.014

2 Approach portion m 6.00 44.46 0.75 3 Gate m Rect 0.52 6.15x3.2 44.46 19.6

8

4 Entrance loss-Bellmouth Rect 2.70 6 x 3.2 44.46 19.20 0.75 = ( 0.05 *

Ve2)/(2*g) 0.001

5 Str. Horizontal Piece m Box 1.50 3.8 x 3.2 44.46 12.16 3.66 = (f * L * V2)/ ( 2 *

g * Dequ) 0.004

6 Transition-Expansion m Rect.-Circ 1 3.43 3.80 44.46 11.3

4 3.92 = K(( V1-V2)^2/(2*g)) 0.001

7 Penstock-main m Circular 1 60.00 3.80 44.46 11.34 3.92 = (f * L * V2)/ ( 2 *

g * D) 0.173

8 Y Piece m Circular 1 10.00 3.80 21.21 11.34 1.87 = 0.5*V2/2*g 0.089

9 Reducer m Circular 1 10.00 3.00 21.21 4.91 4.32 = (0.25*V2/2*g)*N2 0.238

10 Bend-Horizontal m Circular 1 4.50 3.00 21.21 4.91 4.32 = (P * v2/2*g)*N1 0.059

11 Str. Horizontal Piece m Circular 0.23 3.00 21.21 4.91 4.32 = (f * L * V2)/ ( 2 * g * D) 0.001

12 Bend-Vertical m Circular 2 4.50 3.00 21.21 4.91 4.32 = (P * v2/2*g)*N1 0.119

13 Str. Horizontal Piece m Circular 5.90 3.00 21.21 4.91 4.32 = (f * L * V2)/ ( 2 * g * D) 0.031

14 Butterfly valve m Circular 1 2.50 21.21 4.91 4.32 = (0.15*V2/2*g)*N3

0.143

15 Expnasion upto Turbine m Circular 1 1.70 3.35 21.21 7.31 2.90 = K(( V1-V2)^2/(2*g)) 0.003

Total Head loss m Hloss = 0.877

Page 64 of 140

B Head loss calculations Q 18.44

Sr.No.

Loss Unit Shape No Length Diameter Discharge Area Velocity Loss

Formula Loss

m m cumecs sqm m/sec m

1 Trash rack losses m 2.30 44.46 0.75 = ( 0.5 * Vt2)/(2*g) 0.014

2 Approach portion m 6.00 44.46 0.75 3 Gate m Rect 0.52 6.15x3.2 44.46 19.6

8

4 Entrance loss-Bellmouth Rect 2.70 6 x 3.2 44.46 19.20 0.75 = ( 0.05 *

Ve2)/(2*g) 0.001

5 Str. Horizontal Piece m Box 1.50 3.8 x 3.2 44.46 12.16 3.66 = (f * L * V2)/ ( 2 *

g * D) 0.004

6 Transition-Expansion m Rect.-Circ 1 3.43 3.80 44.46 11.3

4 3.92 = K(( V1-V2)^2/(2*g)) 0.001

7 Penstock-main m Circular 1 60.00 3.80 44.46 11.34 3.92 = (f * L * V2)/ ( 2 *

g * D) 0.173

8 Y Piece m Circular 1 10.00 3.80 18.44 11.34 1.63 = 0.5*V2/2*g 0.067

9 Reducer m Circular 1 10.00 3.00 18.44 4.91 3.76 = (0.25*V2/2*g)*N2 0.180

10 Bend-Horizontal m Circular 1 4.50 3.00 18.44 4.91 3.76 = (P * v2/2*g)*N1 0.045

11 Str. Horizontal Piece m Circular 0.23 3.00 18.44 4.91 3.76 = (f * L * V2)/ ( 2 * g * D) 0.001

12 Bend-Vertical m Circular 2 4.50 3.00 18.44 4.91 3.76 = (P * v2/2*g)*N1 0.090

13 Str. Horizontal Piece m Circular 5.90 3.00 18.44 4.91 3.76 = (f * L * V2)/ ( 2 * g * D) 0.024

14 Butterfly valve m Circular 1 2.50 18.44 4.91 3.76 = (0.15*V2/2*g)*N3 0.108

15 Expnasion upto Turbine m Circular 1 1.70 3.35 18.44 7.31 2.52 = K(( V1-V2)^2/(2*g)) 0.002

Total Head loss m Hloss = 0.711

Page 65 of 140

C Head loss

calculations Q 4.57

Sr.No.

Loss Unit Shape No Length Diameter Discharge Area Velocity Loss

Formula Loss

m m cumecs sqm m/sec m

1 Trash rack losses m 2.30 44.46 0.75 = ( 0.5 * Vt2)/(2*g) 0.014

2 Approach portion m 6.00 44.46 0.75 3 Gate m Rect 0.52 6.15x3.2 44.46 19.6

8

4 Entrance loss-Bellmouth Rect 2.70 6 x 3.2 44.46 19.2

0 0.75 = ( 0.05 * Ve2)/(2*g) 0.001

5 Str. Horizontal Piece m Box 1.50 3.8 x 3.2 44.46 12.16 3.66 = (f * L * V2)/ ( 2 *

g * D) 0.004

6 Transition-Expansion m Rect.-Circ 1 3.43 3.80 44.46 11.3

4 3.92 = K(( V1-V2)^2/(2*g)) 0.001

7 Penstock-main m Circular 1 60.00 3.80 44.46 11.34 3.92 = (f * L * V2)/ ( 2 *

g * D) 0.173

8 Y Piece m Circular 1 10.00 3.80 4.57 11.34 0.40 = 0.5*V2/2*g 0.004

9 Reducer m Circular 1 10.00 3.00 4.57 4.91 0.93 = (0.25*V2/2*g)*N2 0.011

10 Bend-Horizontal m Circular 1 4.50 3.00 4.57 4.91 0.93 = (P * v2/2*g)*N1 0.003

11 Str. Horizontal Piece m Circular 0.23 3.00 4.57 4.91 0.93 = (f * L * V2)/ ( 2 * g * D) 0.000

12 Bend-Vertical m Circular 2 4.50 3.00 4.57

4.91

0.93

= (P * v2/2*g)*N1 0.006

13 Str. Horizontal Piece m Circular 5.90 3.00 4.57

4.91

0.93

= (f * L * V2)/ ( 2 * g * D)

0.001

14 Butterfly valve m Circular 1 2.50 4.57

4.91

0.93

= (0.15*V2/2*g)*N3

0.007

15 Expnasion upto Turbine m Circular 1 1.70 3.35 4.57

7.31

0.63

= K(( V1-V2)^2/(2*g))

0.000

Total Head loss m Hloss = 0.226

(B) Head loss for various discharges

Discharge Head loss cumecs m

0.13 0.194 0.40 0.194 3.18 0.209 3.63 0.214 7.38 0.277

15.74 0.570 16.58 0.612 18.44 0.711 20.33 0.822 21.21 0.878

Page 66 of 140

ANNEXURE – 7 A Table: Turbine Selection Sr.No. Particulars Unit Data

A Design data 1 Unit Rated Discharge: cumecs 18.44

2 Net Head at Rated Discharge: m 6.29

3 Gross Head: m 9.80

4 Site Elevation: m 259.70

5 Water Temperature: 0C 21

6 Setting to Tailwater: m -1

7 Efficiency Priority: 10

8 Rated Head/Best Eff Head: 1

9 System Frequency: Hz 50

10 Minimum Net Head: m 2.79

B Turbine selection 1 Arrangement: Vertical Radial Kaplan

2 Unit Regulation Capability Kaplan 3 Intake Type: Spiral case 4 Draft Tube Type: Elbow 5 Runner Diameter: 2103 mm

6 Unit Speed: 187.5 rpm

7 Multiplier Efficiency Modifier 1 8 Flow Squared Efficiency Modifier 0 9 Specific Speed at Rated Net Head

At 100% Turbine Output: 615.5 At Best Efficiency Condition: 615.5

C Turbine performance data

At Rated Net Head of: 6.29 m

% of Rated Discharge Output(KW) Efficiency(%) m3/s

152.7 1540 89.4 27.9 100 1069 93.9 18.5 100 1069 93.9 18.5 75 794 92.9 13.8 50 516 90.5 9.2 25 284 83.1 4.6

** - Overcapacity * - Best Efficiency Condition at Rated Net Head

Page 67 of 140

D Sigma Allowable Sigma Allowable Max. Output (KW) Efficiency (%) m3/s

1 At Maximum Net Head of: 9.58 m 1.381 1540 89.4 27.9

2 At Minimum Net Head of: 2.79 m 2.564 533 79 24.6

E Summary of turbine selection

1 No. of Runner Blades 4 2 Runner Hub Diameter 858.6 mm

3 Maximum Runaway Speed (at Max. Net Head): 502 rpm

4 Turbine Discharge at: Runaway Speed (at Rated Net Head & 100% gate): 52 m3/s

5 Site's Atmospheric Pressure minus Vapor Pressure: 9.6 m

6 Sigma Allowable (at 100% Output & Rated Net Head): 0.971

7 Sigma Plant (at 100% Output & Rated Net Head): 1.684

8 Maximum Hydraulic Thrust (at Max. Net Head): 5831 kg

9 Revesrse Hydraulic Thrust (at Max. Net Head): 6880 kg

10 Approximate Runner Weight: 3917 kg

11 Vel. at Draft Tube Exit (at Rated Head & Discharge): 1.3 m/sec

12 Dimensional data a Inlet Type: Spiral case b Inlet Diameter: 3048 mm

c Runner Centerline to Inlet 3052 mm

13 Draft Tube Type: Elbow a Centerline to Invert: 4416 mm

b Shaft axis to exit length 11230 mm

c Exit Width 5930 mm

d Exit Height: 2313 mm

14 Miscellaneous: a Wicket Gate Height: 992 mm

b Wicket Gate Circle Diameter: 2524 mm

c Runnder Centre Line to Shaft Coupling 3810 mm

d Turbine shaft diameter 219 mm

Notes All information listed above is typical only.

Detailed characteristics will vary based on turbine manufacturer's actual designs.

Page 68 of 140

All Dimensions are in m

Fig-1: Distributor Section

Page 69 of 140

Fig-2 Draft Tube or Water Passage

Fig-3 Turbine Generator Arrangement

Page 70 of 140

ANNEXURE – 7B Design of Turbine and Generator Selection of turbine A Design data Head variation 1 Maximum net head (after losses) m 9.58 2 Min Net head (after losses) m 2.62

Flow variation 1 Max. flow cumecs 21.21 2 Min flow cumecs 7.38

B Results Turbine type Vertical Radial Kaplan Calculations for design discharge A Design data 1 Rated unit capacity kw 1,000.00 2 Rated Net head m 6.29 3 Nos of units proposed nos. 1.00 4 Overload capacity % 15% 5 Efficiencies a Turbine efficiency nt % 93.90% b Generator efficiency ng % 95.50% c Gearbox efficiency ngb % 98.00% d System efficiency n % 87.88% B Calculations 1 Power =9.81 * Hr * Qr * n Therefore Plant Per machine 2 Rated discharge m3/s 18.44 18.44 3 Maximum discharge m3/s 21.21 21.21 Calculations for rated turbine capacity A Design data 1 Rated unit capacity kw 1,000.00 2 Nos of units proposed nos. 1.00 3 Overload capacity % 15% 4 Combined generator & gear box efficiency n % 93.6% B Calculations = P/n

Page 71 of 140

1 Rated turbine capacity Pr kW 1,229 2 Rated turbine capacity Pr Bhp 1,647 Design of generator poles A Design data 2 Generator o/p kW 1,150.00 2 Synchronous speed Ns rpm 750 3 Frequency f cycles 50 Calculations B No of poles P Nos = 120 * f / Ns P Nos 8.00 Transformer rating A Main Power Transformer 1 Design data Nos of units proposed nos 1.00 Generator output Pr kw 1,000.00 Overload % 15% Maximum output Pmax kw 1,150.00 Power factor-lag pf 0.80 2 Calculations Transformer rating Tr KVA = P max /pf Tr KVA 1,438 3 Results Say Rating Tr KVA 1,400.00 Provide standard rating available KVA 2,000.00 Okey Phases Nos 3.00 Frequency cycles 50.00 Cooling type ONAN Voltage ratio KV 3.3 /33 On load tap changer +/- 5% B Auxiliary Transformer Say RATING Tr KVA 63.00 Phases Nos 3.00 Frequency cycles 50.00 Cooling type ONAN Voltage ratio KV 3.3 /433v

Page 72 of 140

ANNEXURE – 8 A Design of penstock diameter Project Bembla

A Design data 1 Unit Rated capacity Pr KW 1000 2 No.of units n nos. 1.00 3 Max.unit capacity Pmax kw 1150 4 Plant rated capacity P 1000 5 Max.plant capacity 1150 6 Net rated head Hr M 6.29 7 Specific gravity g 9.81 8 Unit Rated discharge Qr M3/sec 18.44 9 Unit Maximum discharge Qmax M3/sec 21.21 10

Plant Max. discharge (Design) Qd M3/sec 21.21

B Calculations 1 By T.N.E.B. Hand book formula

Dia ,D = D m =C * (P/H)0.466 Coefficient C

0.1760 D m

1.87 2 By direct formula

Max velocity v = m/sec 4.40

Diameter D = = (Qd x 4/(3.142*V)0.5 D = m

2.48 Thus summary of calculations 1 By T.N.E.B. Hand book formula D m

1.87 2 By direct formula D m

2.48 Therefore size selected option-2 m

2.48 Therefore, size adopted m 2.50

Page 73 of 140

ANNEXURE – 8 B COMPUTATION OF SURGE PRESSURE Pressure Rise due to Water Hammer TNEB Power Engineering handbook page No.1.16 Design data Discharge Q Cumecs 21.21 Penstock Diameter D m 3.80 Area of penstock A m2 11.34 Velocity of water V m/s 1.87 Pressure rise due to closing of guide vanes. H = (2LV)/ (g *T) Where, Pressure rise H Length of penstock L m 104.46 Gide vane closing time T sec 10.00 Gravitational Accelarn. g m/sec2 9.81 Therefore, H= =2*104.46*1.87/9.81*10

H= m 3.98

General practice Consider water hammer rise 50.0%Max.head H = F.R.L. - T.W.L Where, Full Reservoir level F.R.L m

269.50 C/L of Penstock in PH m

258.47 TWL min TWL

min m

259.70 m 9.803Extra head due to water hammer = m 4.90Say H m 5.00Therefore, Maximum pressure rise m 5.00

Page 74 of 140

ANNEXURE – 8 C Design of penstock thickness Calculations for Penstock thickness

1 CWC Penstock Mannual Page No.23 / IS 11639:1995(Part 2) /Page 03 Design data

Full Reservoir level FRL 269.50 TWL min

t = (P x R)/ S Min.TWL 259.70 Static head m H1 =FRL - Min.TWL

m 9.803 Rise in Head due to Water hammer H2 m 5.00 Total Head H m H = H1 + H2

14.80

Internal Pressure inclu. dynamic pressure P kg/cm2 1.480

Internal radius of penstock R cm 125.00

Hoop Tensile stress in steel S kg/cm2 1,192.50

Thickness of steel liner shell t t = cm 0.155

mm 1.55 Add corrosion allowance(Ref:IS 11639:1995 Part2/p 05) CC lined mm 0.00

t = mm 1.55 2 Considering joint efficiency

t = (P x D)/(2x f x n) Statis head H1 m FRL - Min.TWL

FRL m 269.50 TWL Min m 259.70 m 9.80

Rise in head due to water hammer H2 m 5.00 Total Head H m = H1 + H2

H m 14.80

Internal Pressure incl. dynamic pressure in kg/cm2 P kg/cm2 1.480

Internal diameter of penstock D cm 250

Safe working stress in steel f kg/cm2 1,192.50

Thickness of steel liner shell t

Joint efficiency n 90.00% t = cm 0.172 mm 1.72

Add corrosion allowance(Ref:IS 11639:1995 Part2/p 05) CC lined mm 0.00 t = mm 1.72

Page 75 of 140

3 Considering Minimum Handling thickness ( Ref : I.S.4880 (part VII) : 1975 / P. 6

Thickness t = =( D + 50 ) / 400 Where, Internal diameter of penstock D cm 250 t = cm 0.75 t = mm 7.50

4 Considering thickness for Maximum head Ref: IS 11639(part 2):1995 Cl. 5.1 /page 02 Design data

Maximum water level MWL = m 269.50 c/l of pipe @ m/c m 258.47 Thickness t = =(P x D)/(2x f x n)

Where, Static Head

H1 m = MWL - penstock C/L@ M/C

H1 m 11.03 Rise in Head due to Water hammer H2 m 5.00 Total Head H m = H1 + H2 H m 16.03 Internal Pressure incl. dynamic pressure P kg/cm2 1.603 Internal diameter of penstock D cm 250.00 Safe working stress in steel f kg/cm2 1,192.50 Thickness of steel liner shell t cm Joint efficiency n 90.00% t = cm 0.187 = mm 1.87 Add corrosion allowance(Ref:IS 11639:1995 Part2/p 05) CC lined mm 0.00 t = mm 1.87 D Summary of results

1 CWC Penstock Manual Page No.23 / IS 11639:1995(Part 2) /Page 03

mm 1.55

2 Considering joint efficiency mm 1.72 3 By Handling thickness ( Ref : I.S.4880 (part VII) : 1975 /

P. 6 mm 7.50

4 By Calculation for Maximum head mm 1.87 Therefore, Consider Maximum thickness from above results t = mm 7.50 Therefore required Thickness mm 8.00 Thickness provided mm 10.00

Page 76 of 140

ANNEXURE – 9 A DESIGN OF TAIL RACE POOL

Table Tail Race Pool Project Bembla INPUT DATA

1 Bed Width 5.93 m 2 Side slopes 1 : 1 3 Reverse slope 1 : 4.00 4 Pool bed level at DT Gate 253.03 m 5 Pool bed level at start of TRC 258.66 m

Therefore , Length of TRP = (258.66- 253.03) x 4.00 = 5.63 x 4.00 = 22.52 m Therefore provide length of Tail Race Pool 22.52m

***************

Page 77 of 140

ANNEXURE – 9 B Design of Tail Race Channel Table Tail water channel Project Bembla

Canal parameter :

Freeboard 0.50 261.154 TBL

Top width = 12.19 260.654 TWL max

0.50

v 1 FSD y = 1.99

259.697 TWL min

b= 10.20 258.660 CBL

INPUT DATA

1 Bed Width 10.20 m

2 Side slopes 1 : 2

3 Bed slope 1 : 6000

4 Manning's 'n' 0.018

5 Canal bed level 258.66

6 Peak discharge 21.21 Cumecs

7 Min. discharge 7.38 Cumecs

Manning's formula has been adopted for calculating the discharges at various depths of flow.

V= 1/n x R2/3 x S1/2 Where, R = Hydraulic Radius and S= Bed slope of canal.

Page 78 of 140

Sr. No.

Depth of

flow

Top width Area Wetted

perimeter

Hydraulic Mean

Radius

Velocity of flow Discharge

Water Level

in canal

Remarks

D T= B+2*Z*y A P R=A/P V Q EL

=

(b+zy)y =

b+2y(1+z2)1/2 V=

1/n*R2/3*S1/2 = A * V m m Sq.m m m m/sec Cumecs m

1 0.00 10.20 0.00 10.20 0.00 0.00 0.00 258.66 CBL 2 0.16 10.21 1.98 20.12 0.10 0.15 0.30 258.763 0.25 10.22 0.20 10.24 0.02 0.05 0.011 258.684 0.46 10.24 0.40 10.29 0.04 0.08 0.03 258.705 0.58 10.78 6.06 11.49 0.53 0.47 2.84 259.246 0.74 10.94 7.78 11.85 0.66 0.54 4.21 259.407 0.79 10.99 8.32 11.96 0.70 0.56 4.68 259.448 0.92 11.12 9.75 12.25 0.80 0.62 6.01 259.579 1.32 11.52 14.34 13.15 1.09 0.76 10.89 259.9810 1.75 11.95 19.42 14.12 1.38 0.89 17.22 260.4111 1.81 12.01 20.06 14.24 1.41 0.90 18.09 260.4712 2.24 12.44 25.36 15.21 1.67 1.01 25.57 260.9013 2.26 12.46 25.58 15.25 1.68 1.01 25.90 260.9214 2.26 12.46 25.62 15.26 1.68 1.01 25.96 260.9215 2.28 12.48 25.83 15.29 1.69 1.02 26.27 260.9416 2.49 12.69 28.46 15.76 1.81 1.06 30.27 261.1517 3.16 13.36 37.17 17.26 2.15 1.20 44.47 261.82

Page 79 of 140

ANNEXURE – 10 Soil Resistivity tests Detailed investigations such as bore log data, soil resistivity etc. will be taken during the detailed designing of the components. The soil bearing capacity shall also be tested in the laboratory.

Page 80 of 140

ANNEXURE – 11A ANALYSIS OF RATES

Table Basic rates

Sr. No.

Unit Rate Rs/Unit

A Manpower 1 Beldar (M) each 120.00 2 Coolie (F) each 110.00 3 Mate each 200.00 4 Waterman each 100.00 5 Excavators each 100.00 6 Breakers each 100.00 7 Chisellers each 150.00 8 Blacksmith 2nd class each 150.00 9 Foreman each 200.00

10 Mason each 180.00 11 Bar-Bender each 180.00 12 Helper each 120.00

B Materials

1 Cement bag 240.00 2 Sand Cum 850.00 3 Stone aggregate Cum 600.00 4 Bricks Nos 2.50 5 Steel Bars Tonn

e 39000.00

6 Pitching Stone Cum 425.00 7 Penstock steel MT 55000.00 8 Formwork Sqm 170.00 9 Hire and running charges of mixer /vibrator % 1.50%

10 Leavers % 2.00% 11 Cover blocks % 2.00% 12 Sundries & Contingencies % 3.00% 13 Water & Electricity % 1.50% 14 Contractors profit and overhead % 20.00% 15 Laboratory testing charges % 1.00% 16 Scaffolding % 1.00%

Page 81 of 140

17 Straightening % 1.50% 18 Marking % 2.00% 19 Cutting % 5.00% 20 Rolling % 8.00% 21 Welding % 7.00% 22 Testing % 4.00% 23 Workshop operation etc. % 8.00% 24 Erection % 2.50%

Page 82 of 140

Summary of items

Sr.No. Description Unit Quantity

Rate

Rs/Unit

1 Clearaing of site Sqm 1.00 1.00 2 Earth work In Excavation In Soil Cum. 1.00 127.00 3 Earth Work in Excavation in hard rock without

blasting Cum 1.00 341.00

4 Cement Mortar 1:3 Cum 1.00 4056.00 5 Cement Mortar 1:4 Cum 1.00 3577.00 6 Cement Mortar 1:5 Cum 1.00 3466.00 7 Cement Mortar 1:6 Cum 1.00 2857.00 8 PCC 1:4:8 Cum 1.00 2414.00 9 RCC M20 (1:1.5:3) Cum 1.00 4453.00

10 RCC M15 (1:2:4) Cum 1.00 3955.00 11 PCC 1:3:6 Cum 1.00 3328.00 12 Cement Plaster in CM 1:6 (12mm thk) Sqm 1.00 102.00 13 Materials Sqm 1.00 137.00 14 Brickwork in CM 1:6 Cum 1.00 3041.00 15 Steel Reinforcement MT 1.00 55391.00 16 Supply, Fabrication & erection of Penstock MT 1.00 93357.00 17 Stone Pitching Cum 1.00 2951.00

Page 83 of 140

1 Clearaing of site Sq.m. 100.00 Sr.No. Description Unit Quantity Rate Cost

Rs/Unit Rs Clearing grass and removal of rubbish upto a

distance of 50 m outside the periphery of the area cleared.

Labour : a Beldar (M) each 0.50 120.00 60.00 b Coolie (F) each 0.30 110.00 33.00

Sub-total: 93.00 c Add :Sundries & Contingencies 3.00% 2.79 d Add :Water & Electricity charges 1.50% 1.44 e Add :Contractors profit and overhead 20.00% 19.45 Total: 116.67 Unit rate 1.17 Say 1.00

2 Earth work In Excavation In Soil Cum. 10.00 Sr.No. Description Unit Quantity Rate Cost

Rs/Unit Rs Earth work In Excavation In all kinds of Soil

Including dressing, watering and ramming and disposal of Excavated disposed earth to be levelled, neatly dressed.

Labour : a Mate each 0.15 200.00 30.00 b Beldar (M) each 4.25 120.00 510.00 c Coolie (F) each 4.25 110.00 467.50 d Waterman each 0.05 100.00 5.00 Sub-total: 1,012.50 e Add :Sundries & Contingencies 3.00% 30.38 f Add :Water & Electricity charges 1.50% 15.64 g Add :Contractors profit and overhead 20.00% 211.70 Total: 1,270.22 Unit rate 127.02 Say 127.00

3 Earth Work in Excavation in hard rock without blasting

Cum 10.00

Sr.No. Description Unit Quantity Rate Cost Rs/Unit Rs

Page 84 of 140

Earth Work in Excavation in hard rock without blasting Including dressing, stacking of useful material and disposal of unserviceable.

Labour : a Mate each 0.25 200.00 50.00 b Beldar (M) each 3.00 120.00 360.00 c Coolie (F) each 5.00 110.00 550.00 d Excavators each 5.00 100.00 500.00 e Breakers each 8.00 100.00 800.00 f Chisellers each 2.50 150.00 375.00 g Blacksmith 2nd Class each 0.50 200.00 100.00 Sub-total: 2,735.00

h Add :Sundries & Contingencies 3.00% 82.05 i Add :Water & Electricity charges 1.50% 41.03 j Add :Contractors profit and overhead 20.00% 547.00 Total: 3,405.08 Unit rate 340.51 Say 341.00

4 Cement Mortar 1:3 Cum 1.00 Sr.No. Description Unit Quantity Rate Cost

Rs/Unit Rs Cement Mortar 1:3 A Materials

a Cement bag 9.50 240.00 2,280.00 b Sand cum 0.98 850.00 828.75

B Labour c Mate/Foreman each 0.10 200.00 20.00 d Beldar (M) each 0.65 120.00 78.00 e Coolie (F) each 0.65 110.00 71.50 f Waterman each 0.20 100.00 20.00 Sub-total: 3,298.25

g Add :Sundries & Contingencies 3.00% 82.05 h Add :Contractors profit and overhead 20.00% 676.06 Total: 4,056.36 Unit rate 4,056.36 Say 4,056.00

5 Cement Mortar 1:4 Cum 1.00 Sr.No. Description Unit Quantity Rate Cost

Page 85 of 140

Rs/Unit Rs Cement Mortar 1:4 A Materials

a Cement bag 7.50 240.00 1,800.00 b Sand cum 1.07 850.00 909.50

B Labour c Mate/Foreman each 0.10 200.00 20.00 d Beldar (M) each 0.65 120.00 78.00 e Coolie (F) each 0.65 110.00 71.50 f Waterman each 0.20 100.00 20.00 Sub-total: 2,899.00

g Add :Sundries & Contingencies 3.00% 82.05 h Add :Contractors profit and overhead 20.00% 596.21 Total: 3,577.26 Unit rate 3,577.26 Say 3,577.00

6 Cement Mortar 1:5 Cum 1.00 Sr.No. Description Unit Quantity Rate Cost

Rs/Unit Rs Cement Mortar 1:5 A Materials

a Cement bag 6.30 240.00 1,512.00 b Sand cum 1.30 850.00 1,105.00

B Labour c Mate/Foreman each 0.10 200.00 20.00 d Beldar (M) each 0.65 120.00 78.00 e Coolie (F) each 0.65 110.00 71.50 f Waterman each 0.20 100.00 20.00 Sub-total: 2,806.50

g Add :Sundries & Contingencies 3.00% 82.05 h Add :Contractors profit and overhead 20.00% 577.71 Total: 3,466.26 Unit rate 3,466.26 Say 3,466.00

7 Cement Mortar 1:6 Cum 1.00 Sr.No. Description Unit Quantity Rate Cost

Rs/Unit Rs Cement Mortar 1:6 A Materials :

Page 86 of 140

a Cement bag 5.00 240.00 1,200.00 b Sand cum 1.07 850.00 909.50

B Labour c Mate/Foreman each 0.10 200.00 20.00 d Beldar (M) each 0.65 120.00 78.00 e Coolie (F) each 0.65 110.00 71.50 f Waterman each 0.20 100.00 20.00 Sub-total: 2,299.00

g Add :Sundries & Contingencies 3.00% 82.05 h Add :Contractors profit and overhead 20.00% 476.21 Total: 2,857.26 Unit rate 2,857.26 Say 2,857.00

8 PCC 1:4:8 Cum 1.00 Sr.No. Description Unit Quantity Rate Cost

Rs/Unit Rs PCC 1:4:8

A Materials :

a Stone aggregate cum 0.88 600.00 528.00 b Sand cum 0.44 850.00 374.00 c Cement bag 3.40 240.00 816.00

B Labour : d Foreman each 0.05 200.00 10.00 e Beldar (M) each 0.65 120.00 78.00 f Coolie (F) each 0.65 110.00 71.50 g Waterman each 0.04 100.00 3.50 h Mason each 0.08 180.00 14.40 Sub-total: 1,895.40 i Add : Hire & running charges of

mixer,Vibrator 1.50% 28.43

j Add :Sundries & Contingencies 3.00% 57.71 k Add :Water & Electricity charges 1.50% 29.72 l Add :Contractors profit and overhead 20.00% 402.25 Total: 2,413.52 Unit rate 2,413.52 Say 2,414.00

9 RCC M20 (1:1.5:3) Cum 1.00 Sr.No. Description Unit Quantity Rate Cost

Page 87 of 140

Rs/Unit Rs RCC M20 (1:1.5:3)

A Materials : a Stone aggregate cum 0.90 600.00 540.00 b Sand cum 0.45 850.00 382.50 c Cement bag 8.00 240.00 1,920.00

B Labour d Foreman each 0.04 200.00 8.00 e Beldar (M) each 0.70 120.00 84.00 f Coolie (F) each 0.70 110.00 77.00 g Waterman each 0.04 100.00 3.50 h Mason each 0.07 180.00 12.60 i Formwork Sqm 2.00 170.00 340.00 Sub-total: 3,367.60 j Add : Hire & running charges of mixer vibrator 3.00% 101.03 k Add: Curing charges LS 50.00 l Add : Laboratory testing charges 1.00% 33.68

m Add :Sundries & Contingencies 3.00% 103.54 n Add :Water & Electricity charges 1.50% 54.84 o Add :Contractors profit and overhead 20.00% 742.14 Total: 4,452.82 Unit rate 4,452.82 Say 4,453.00

10 RCC M15 (1:2:4) Cum 1.00 Sr.No. Description Unit Quantity Rate Cost

Rs/Unit Rs RCC M15 (1:2:4)

A Materials : a Stone aggregate cum 0.90 600.00 540.00 b Sand cum 0.45 850.00 382.50 c Cement bag 6.40 240.00 1,536.00

B Labour : d Foreman each 0.04 200.00 8.00 e Beldar (M) each 0.70 120.00 84.00 f Coolie (F) each 0.70 110.00 77.00 g Waterman each 0.04 100.00 3.50 h Mason each 0.07 180.00 12.60 i Formwork Sqm 2.00 170.00 340.00 Sub-total: 2,983.60

Page 88 of 140

j Add : Hire & running charges of mixer,Vibrator

3.00% 89.51

k Add: Curing charges LS 50.00 l Add : Laboratory testing charges 1.0% 29.84

m Add :Sundries & Contingencies 3.00% 94.59 n Add :Water & Electricity charges 1.50% 48.71 o Add :Contractors profit and overhead 20.00% 659.25 Total: 3,955.49 Unit rate 3,955.49 Say 3,955.00

11 PCC 1:3:6 (1:3:6) Cum 1.00 Sr.No. Description Unit Quantity Rate Cost

Rs/Unit Rs PCC 1:3:6

A Materials a Stone aggregate cum 0.90 600.00 540.00 b Sand cum 0.45 850.00 382.50 c Cement bag 4.50 240.00 1,080.00

B Labour d Foreman each 0.08 200.00 16.00 e Beldar (M) each 0.80 120.00 96.00 f Coolie (F) each 0.80 110.00 88.00 g Waterman each 0.04 100.00 3.50 h Mason each 0.10 180.00 18.00 i Formwork Sqm 2.00 170.00 340.00 Sub-total: 2,564.00 j Add :Hire & running charges of mixer vibrator

etc. 1.50% 38.46

k Add: Curing charges LS 50.00 l Add :Sundries & Contingencies 3.00% 79.57

m Add :Water & Electricity charges 1.50% 40.98 n Add :Contractors profit and overhead 20.00% 554.60 Total: 3,327.62 Unit rate 3,327.62 Say 3,328.00

12-A Cement Plaster in CM 1:6 (12mm thk) Sqm 10.00 Sr.No. Description Unit Quantity Rate Cost

Rs/Unit Rs Cement Plaster in CM 1:6 (12mm thk)

Page 89 of 140

A Materials a Cement Mortar Cum 0.14 2857.00 411.41

B Labour b Coolie (F) each 1.25 110.00 137.50 c Waterman each 0.15 100.00 15.00 d Mason each 1.25 180.00 225.00 Sub-total: 788.91 e Add: Scaffolding 1.00% 7.89 f Add: Curing charges LS 20.00 g Add :Sundries & Contingencies 3.00% 24.50 h Add :Water & Electricity charges 1.50% 12.62 i Add :Contractors profit and overhead 20.00% 170.78 Total: 1,024.70 Unit rate 102.47 Say 102.00

12-B Cement Plaster in CM 1:6 (20mm thk) Sqm 10.00 Sr.No. Description Unit Quantity Rate Cost

Rs/Unit Rs Cement Plaster in CM 1:6 (20mm thk)

A Materials a Cement Mortar Cum 0.24 2857.00 685.68

B Labour b Coolie (F) each 2.08 110.00 137.50 c Waterman each 0.25 100.00 15.00 d Mason each 2.08 180.00 225.00 Sub-total: 1,063.18 e Add: Scaffolding 1.00% 10.63 f Add: Curing charges LS 20.00 g Add :Sundries & Contingencies 3.00% 32.81 h Add :Water & Electricity charges 1.50% 16.90 i Add :Contractors profit and overhead 20.00% 228.71 Total: 1,372.23 Unit rate 137.22 Say 137.00

13 Brickwork in CM 1:6 Cum 1.00 Sr.No. Description Unit Quantity Rate Cost

Rs/Unit Rs Brickwork in CM 1:6

Page 90 of 140

A Material : a Bricks Nos 500.00 2.50 1,250.00 b Cement Mortar 1:6 Cum 0.27 2857.00 771.39

B Labour : c Beldar (M) each 0.84 120.00 100.80 d Coolie (F) each 0.84 110.00 92.40 e Mason each 0.56 180.00 100.80 f Waterman each 0.30 100.00 30.00 g Sub-total: 2,345.39 h Add: Scaffolding 2.50% 58.63 i Add: Curing charges LS 20.00 j Add :Sundries & Contingencies 3.00% 72.72 k Add :Water & Electricity charges 1.50% 37.45 l Add :Contractors profit and overhead 20.00% 506.84 Total: 3,041.04 Unit rate 3,041.04 Say 3,041.00

14 Steel Reinforcement MT 1.00 Sr.No. Description Unit Quantity Rate Cost

Rs/Unit Rs Steel Reinforcement

A Material : a Steel Bars Tonn

e 1.08 39000.00 42,120.00

B Labour : b Foreman each 0.04 200.00 8.00 c Bar-Bender each 0.50 180.00 90.00 d Helper each 0.50 120.00 60.00 Sub-total: 42,278.00 e Add: Leavers 2.00% 845.56 f Add : Cover block 2.00% 845.56 g Add: Scaffolding 2.00% 845.56 h Add :Sundries & Contingencies 3.00% 1,344.44 i Add :Contractors profit and overhead 20.00% 9,231.82 Total: 55,390.94 Unit rate 55,390.94 Say 55,391.00

15 Supply, Fabrication & erection of Penstock MT 1.00 Sr.No. Description Unit Quantity Rate Cost

Page 91 of 140

Rs/Unit Rs Supply, Fabrication & erection of Penstock

A A. Material : a Material rate per MT ( boiler quality plates) MT 1.00

55,000.00 55,000.00

b Wastage 0.03 1,375.00

1,375.00

Sub-total: 56,375.00 B B. Fabrication

c Straightening 1.50% 845.63 d Marking 2.00% 1,127.50 e Cutting 5.00% 2,818.75 f Rolling 8.00% 4,510.00 g Welding 7.00% 3,946.25 h Testing 4.00% 2,255.00 i Workshop operation etc. 8.00% 4,510.00 j Erection 2.50% 1,409.38 k Add :Contractors profit and overhead 20.00% 15,559.50 Total: 93,357.00 Unit rate 93,357.00 Say 93,357.00

16 Stone Pitching Cum 1.00 Sr.No. Description Unit Quantity Rate Cost

Rs/Unit Rs Stone Pitching

A Material : a Pitching Stone cum 1.15 425.00 488.75 b Cement Mortar 1:5 cum 0.42 3,466.00 1,455.72

B Labour ( including dresing of stone ) c Beldar (M) each 1.00 120.00 120.00 d Coolie (F) each 0.80 110.00 88.00 e Waterman each 0.20 100.00 20.00 f Mason each 1.00 180.00 180.00 Sub-total: 2,352.47

g Add :Sundries & Contingencies 3.00% 70.57 h Add :Water & Electricity charges 1.50% 36.35 i Add :Contractors profit and overhead 20.00% 491.88 Total: 2,951.27 Unit rate 2,951.27 Say 2,951.00

Page 92 of 140

ANNEXURE - 11 B COST ESTIMATE PROJECT COST: BREAK-UP

Sr. No. Particulars Cost, Rs. Lac 1 Civil, Electrical and Mechanical works

a Civil work 220.07

b Electrical & mechanical cost 290.00c Transmission works 5.00d E & M inclusive of transmission 295.00e Project cost without IDC, FC & others 515.07

2 Interest During Construction (IDC) 22.92 3 Financial Charges

a Financial institution fees 1% 5.15

b Statutory clearance 5.00

c Financial consultancy 10.00

d Loan application charges 1.00 e Sub-total:2 21.15

4 Preliminary expenses

a Company formation fees 2.00b Misc. pre incorporation fees 1.00

Sub-total:a 3.00 Pre-operative expenses

a Upfront premium 25.50

b Legal expenses, board meeting, inagural expenses

1.00

c Insurance during construction 2.58

d Contingencies 3.87 Sub-total:b 32.94

Sub-total:(a+b) 35.94

Page 93 of 140

Sr. No. Particulars Cost, Rs. Lac5 Project Cost 595.08 6 Working Capital Requirements

a Receivables @ 2 months -1st year 13.67b O&M @ 1 months 1.23c Sub-total:7 14.90

7 Margin Money for WC 30% 4.47 8 Sources of Fund Loan 60% 357.05 Equity 40% 242.509 Total Project Cost 599.56

Page 94 of 140

Civil works Sr.No. Item of Work Unit Amount

Rupees I works A Preliminary 20.00 B Land - C Civil Works

1 Penstock 11.10 2 Power House 99.10 3 Tail race pool 21.51 4 Tail race channel 7.99 5 Approach raod 1.50 6 Switchyard 8.92 7 Hydro-mechanical 22.35

Total;-(C-works) 172.47 K Buildings 5.30 M Plantations 2.90 O Miscellaneous 1.14 P Maintenance Percent % of (C) 0.50% 0.81 Excluding 1 &2 Q Special Tools & Plants 3.80 R Communication 1.60 X Environment and ecology 2.00 Losses on stocks Percent % of (C) -0.25% (0.43) Total of I-Works 209.59 11 Contingencies Percent % of (I) 2.00% 4.19 12 Project Management Percent % of (I) 2.00% 4.19 13 Audit and accounts Percent % of (I) 1.00% 2.10

Total: 220.07 A - PRELIMINARY

Sr.No Item of Work Unit Amount

Rupees 1 Survey and investigations at DPR stage Job 50,000 2 Consultancy fees for preparation of DPR Job 400,000 3 Survey and detailed geotechnical

investigations for detailed Engineering 50,000

4 Design and Engineering 1,500,000 Total 2,000,000 Rs. Lacs 20.00

Page 95 of 140

B- Land Sr.No. Item of Work Unit Amount Rs. 1 Procuement of land Ha - - Nil

Govt land will be available on lease

Total 0 Rs. Lacs NIL

A Penstock Sr. No. Description of Items Unit Qty. Unit rate Amount

Rs Rs

1 Excavation 1.1 Excavation for foundation in

all sorts of soft strata including stacking material as directed with all leads and lifts etc, complete.

cum 400.89 121.00 48,508.14

1.2 Excavation for foundation in hard rock including stacking material as directed with all leads and lifts etc, complete.

Cum 90.90 324.00 29,451.60

Fill materials and protection works Back filling with selected

material available form excavation with all leads & lifts, laying in layers, leveling, breaking the clods including compacting etc, complete.

Cum 106.91 216.00 23,091.48

2 Concrete 2.2 Providing and laying in situ

Reinforced cement concrete of M-20 (20 MSA) for foundation and bedding of anchor blocks and saddle supports compacting, curing etc. complete

cum 161.78 5,767.00 932,971.85

3 Re-inforcement steel

Page 96 of 140

Sr. No. Description of Items Unit Qty. Unit rate Amount Rs Rs

3.1 Supplying, laying, fabrication, transportation to the work site and installation of the reinforcing steel bars and welded wire fabric, including all tie wire, spacers and supports. All as shown on the drawings or as required by Puchaser and as specified

MT 1.27 60,090.00 76,311.58

Total: 1,110,334.66 Say in Lacs 11.10

B Power House

Sr. No.

Description of Items Unit Qty. Unit rate Amount

Rs Rs

1 Clearaing 1.1 Clearing of the areas including

Intake structure, areas of saddle supports of penstock, powerhouse, Tail Race Pool and tailrace, Bridge(s), switchyard, the access road, the stockpile, the waste area and the service areas. For Contractor, the clearing will

L.S. 1.00 100,000.00 100,000.00

2 Excavation 2.1 Excavation for foundation in all

sorts of soft strata including stacking material as directed with all leads and lifts etc, complete.

cum 980.00 121.00 118,580.00

2.2 Excavation for foundation in hard rock including stacking material as directed with all leads and lifts etc, complete.

cum 630.00 324.00 204,120.00

Fill materials and protection works 3 Back filling with selected material

available form excavation with all leads & lifts, laying in layers, leveling, breaking the clods including compacting etc, complete.

Cum 235.00 216.00 50,760.00

4 Concrete

Page 97 of 140

Sr. No.

Description of Items Unit Qty. Unit rate Amount

Rs Rs 4.1 Providing and laying in situ plain

cement concrete of M-15 (20 MSA) for leveling course compacting, curing etc, complete.

cum 2.40 5,060.00 12,144.00

4.3 Providing and laying in situ Cement concrete for flooring of grade M-15 (20 MSA) compacting, curing etc, complete.

cum 7.00 5,060.00 35,420.00

4.4 Providing and laying in situ reinforced cement concrete for framed structure of Power house, grade M-20 (20MSA) compacting, curing etc, complete.

a column footing cum 45.00 5,767.00 259,515.00 b Columns cum 80.00 5,767.00 461,360.00 c Beams cum 67.60 5,767.00 389,849.20 d Slabs cum 28.00 5,767.00 161,476.00 e Staircase cum 4.82 5,767.00 27,820.01 f chajja cum 1.55 5,767.00 8,963.30

4.5 Providing and laying in situ reinforced cement concrete for draft tube structure & machinery foundation of grade M-25 (20 MSA) compacting, curing etc, complete.

cum 13.79 6,200.00 85,475.58

4.6 Providing and laying in situ reinforced cement concrete of grade M-30 (20 MSA) for machine foundation compacting, curing with centering etc, complete.

Cum 7.27 6,453.00 46,885.95

5 Re-inforcement steel

5.1 Supplying, laying, fabrication, transportation to the work site and installation of the reinforcing steel bars and welded wire fabric, including all tie wire, spacers and supports. All as shown on the drawings or as required by Puchaser and as specified

T 53.00 60,090.00 3,184,770.00

6 Water stops and fillers 6.1 supply and installation of 150 mm

wide water stops including their moulded intersection as well as supply and placing of joint filler as shown on the drawings or as

RM 75.26 800.00 60,208.00

Page 98 of 140

Sr. No.

Description of Items Unit Qty. Unit rate Amount

Rs Rs required by DLIP(I)PL and as specified

7 Structural steel metal work 7.1 Providing and erecting including

assembling, fitting and fixing single or double leaf, double plate flush, hollow mild steel doors at all elevations, of all sizes including pressed steel frames, shutters, fittings, etc. mastic caulking, grouting the fram

Sqm 21.88 3,000.00 65,625.00

7.2 providing and fixing mild steel push and pull type of rolling shutter of clear dimension of approximately 4.0 m X 6.0 m including all necessary fixtures, painting etc. complete for the main entrance to the storage shed buildings

Sqm 30.00 1,700.00 51,000.00

7.3 Structural steel work welded in built up sections, trusses and framed work including cutting, hoisting, fixing in position and applying a priming coat of approved steel primer all complete.

MT 15.00 83,514.00 1,252,710.00

7.4 Providing and erecting corrugated galvanized iron sheeting including supply, delivery and erection with corner and ridge pieces, eaves, filler pieces, north light curves, flashing, gutter eaves, boards, skylight and all necessary screws, bolts, nuts washe

Sqm 446.76 400.00 178,704.00

7.5 Providing, fabricating, delivering & erecting black steel pipe hand railing of flush welded construction made of 32mm NB pipe with two horizontal rails one rail one at 500mm & another at 1000mm the base level with vertical pipes at a aximum spacing of 20

Rmt 100.00 2,600.00 260,000.00

-

Page 99 of 140

Sr. No.

Description of Items Unit Qty. Unit rate Amount

Rs Rs 7.6 Providing anchor rods for column

footing, machine foundation 25mm dia bars, 1.00 m in rock and 750mm in concrete including cutting, bending, drilling holes for anchor bars and filling hole with rich cement slurry etc, complete.

M T 0.05 83,514.00 3,858.35

7.7 The Fencing shall be done with

2.5 m high posts of ISA 50 x 50 x 6 placed @ 1.5 m c/c with chain linked wire mesh for bottom 2.0 m portion of the post. The top 0.5 m portion of the post shall be protected with barbed wire. Painting shall be done as descri

R M 150.00 500.00 75,000.00

7.8 Providing and fabricating MS gate

size 4 x 2m size including the steel columns, fixers,concreting painting with red oxide and two color coats of approved color as per the drawing and specifications

Kg 1,000.00 79.06 79,062.00

8 Construction services

8.1 Pumping out water caused by springs, tidal or river seepage, broken water mains or drains and the like etc, complete.

hphrs

3,600.00 15.00 54,000.00

9 Architectural work 9.1 Laying of 50mm thick cement

concrete flooring in 1m x 1m panels and in two layers. The under layer shall be of 38mm thick cement concrete in 1:1:2 (1 cement : 1 coarse sand : 2 stone aggregate 10 mm graded size by volume). The top 12mm thick layer shall b

Sq.m.

115.00 500.00 57,500.00

9.2 Providing Cement Mortar plastering to masonry / concrete structures including cost of all materials, labor, machinery, scaffolding, raking joints, smooth finishing, curing, protective works, with all leads and lifts. The mortar

Sqm 310.12 159.00 49,309.36

Page 100 of 140

Sr. No.

Description of Items Unit Qty. Unit rate Amount

Rs Rs shall be in 1:4 Cement Sand

9.3 Providing & installing ceiling consisting of cement bonded particle boards of approved quantity & anodised aluminum angle fixed to the walls by Raw plug & screws, anodised aluminum Tees with clips in a grid of 500x600mm hung from hooks provided in the cei

Sq.m.

180.00 300.00 54,000.00

9.4 Providing and erecting including assembling fitting & fixing doors, windows and partitions at all elevations, of all sizes including box type extruded anodised aluminium frames, mullions, transons with Aluminium handles, holdfasts, tower bolts etc. all f

a Doors with glass of mm thk Sqm 40.80 5,950.00 242,730.25 b Windows and partitions with glass

of mm thk Sqm 84.00 6,200.00 520,800.00

9.5 Cement mortar for plaster on external walls shall consists of an intimate mixture of sand, cement, water and a suitable waterproofing compound of “Sika” make or equivalent as approved by Puchaser (Note: Rate for only water proof compaund no Plaster)

Sqm 310.12 159.00 49,309.36

9.6 Providing flooring and skirting with ceramic tiles of approved quality and color laid in CM 1:3 proportion.

Sqm 220.25 1,200.00 264,305.40

9.7 Providing and fixing acid resisting tiles of approved quality for the floor and walls of the battery room in 1:3 Cement Sand Mortar

Sqm 39.80 2,480.00 98,704.00

10 Masonary works

10.1 0.5 mm thick coloured prequoted

sheets cladding Sqm 827.85 450.00 372,531.15

Page 101 of 140

Sr. No.

Description of Items Unit Qty. Unit rate Amount

Rs Rs

10.2 Turbo ventilator No 6.00 10,000.00 60,000.00

11 Drinking water supply and sewage

Supply, installation, design (when required), inspection and testing, painting, transportation to final destination and commissioning of the embedded or exposed piping and related items described herein and as shown on schematics and drawings for the fol

11.1 • Drinkable water LS 1.00 50,000.00 50,000.00 11.2 • Waste water LS 1.00 50,000.00 50,000.00 11.3 • Drainage LS 1.00 50,000.00 50,000.00

12 Drilling and grouting

12.1 Drilling holes up to 50 mm diameter vertical or inclined in all formations of rock/concrete/masonry/soil by percussion method for consolidation/curtain/tunnel grouting, water loss tests including flushing and cleaning the hole with air and water at requir

RM 484.99 350.00 169,747.20

12.2 Cement grouting for consolidation of the power house base

Kg 1,697.47 20.00 33,949.44

13 Damp prooof course 13.1 Providing and laying of Damp

Proof Course (DPC) in wall masonry at plinth level or as directed by the Engineer.

Sq.m.

- 323.00 -

14 Roof water proofing and insulation

14.1 Providing and laying plain cement concrete 1: 2 : 4 (1 cement: 2 sand: 4 coarse aggregate of 12.5 mm nominal size) placed as grading underbed/fillet-over roof slab to achieve a slope of 1:100 or as specified at all elevations including all labour, materi

Cu m 20.77 5,060.00 105,109.14

Page 102 of 140

Sr. No.

Description of Items Unit Qty. Unit rate Amount

Rs Rs 14.2 Providing, laying and fixing water

proofing treatment using bitumen felt (Hessian based; self finished, type-3 Grade-1) over roof and parapet at all elevations including preparation of surface, application of primer, bitumen felt layers, boundary bitumen

sq.m.

238.57 1,500.00 357,855.75

16 Boulder pitching

16.1 Providing panel pitching having panel 3m x 3m inside dimension with Random Rubble masonry in cement mortar 1: 5 (by weight) 0.45m wide and 0.60m deep and as shown on drawings including filling panels with rubble 0.45m thick and filling the voids with sand

Cu.m 136.08 715.00 97,297.20

Total: 9,910,454.64 Say in Lacs 99.10

C Tail Race pooll Sr.No. Description of Items Unit Qty. Unit rate Amount

Rs Rs 1 Excavation

1.1 Excavation for foundation in all sorts of soft strata including stacking material as directed with all leads and lifts etc, complete.

Cum 760.00 121.00 91,960.00

1.2 Excavation for foundation in hard rock including stacking material as directed with all leads and lifts etc, complete.

Cum 570.63 324.00 184,884.36

2 Fill material and protection works

2.1 Back filling with selected material available form excavation with all leads & lifts, laying in layers, leveling, breaking the clods including compacting etc, complete.

Cum 228.25 216.00 49,302.50

3 Concrete

Page 103 of 140

Sr.No. Description of Items Unit Qty. Unit rate Amount

Rs Rs 3.1 Providing and laying in situ plain

cement concrete M-10 (25 MSA) below penstocks including centering wherever necessary, curing, compacting etc, complete.

Cum 5.54 4,342.00 24,032.97

3.2 Providing and laying in situ Re-in forced cement concrete of M-20 (20 MSA) for foundation & bedding compacting, curing etc. complete.

Cum 136.00 5,767.00 784,312.00

4 Re-inforcement steel 4.1 Supplying, laying, fabrication,

transportation to the work site and installation of the reinforcing steel bars and welded wire fabric, including all tie wire, spacers and supports. All as shown on the drawings or as required by Puchaser and as specified

MT 14.00 60,090.00 841,260.00

5 Providing, fabricating, delivering &

erecting black steel pipe hand railing of flush welded construction made of 32mm NB pipe with two horizontal rails one rail one at 500mm & another at 1000mm the base level with vertical pipes at a maximum spacing of 20

Rm 50.00 2,600.00 130,000.00

6 Construction services - 6.1 Pumping out water caused by

springs, tidal or river seepage, broken water mains or drains and the like etc, complete.

hphrs 600.00 15.00 9,000.00

7 Water stops and fillers

7.1 supply and installation of 150 mm wide water stops including their moulded intersection as well as supply and placing of joint filler as shown on the drawings or as required by DLIP(I)PL and as specified

RM 45.00 800.00 36,000.00

Total: 2,150,751.83 Say in Lacs 21.51

Page 104 of 140

D Tail Race Channel Sr.No. Description of Items Unit Qty. Unit rate Amount

Rs Rs 1 Excavation

1.1 Excavation for foundation in all sorts of soft strata including stacking material as directed with all leads and lifts etc, complete.

Cum 987.00 121.00 119,427.00

1.2 Excavation for foundation in hard rock including stacking material as directed with all leads and lifts etc, complete.

Cum 450.00 324.00 145,800.00

2 Fill material and protection works 2.1 Back filling with selected material

available form excavation with all leads & lifts, laying in layers, leveling, breaking the clods including compacting etc, complete.

Cum 364.56 216.00 78,744.96

3 Concrete 3.2 Providing and laying in situ Re-in

forced cement concrete of M-20 (20 MSA) for foundation & bedding compacting, curing etc. complete.

Cum 78.96 5,767.00 455,362.32

Total: 799,334.28 Say in Lacs 7.99

K Approach Road Sr.No. Description of Items Unit Qty. Unit rate Amount

Rs Rs

1 approch road Job 1.00 150,000.00 150,000.00 Total: 150,000.00 Say in Lacs 1.50

Page 105 of 140

L Switchyard

Sr.No. Description of Items Unit Qty. Unit rate Amount

Rs Rs 1 Excavation

1.1 Excavation for foundation in all sorts of soft strata including stacking material as directed with all leads and lifts etc, complete.

Cum

91.29 121.00 11,046.54

1.2 Excavation for foundation in hard rock including stacking material as directed with all leads and lifts etc, complete.

Cum 30.43 324.00 9,859.73

2 Fill material and protection works 2.1 Providing and spreading gravel as

directed by Engineer incharge etc, complete.

Cum 20.15 1,500.00 30,225.00

2.2 Back filling with selected material available form excavation with all leads & lifts, laying in layers, leveling, breaking the clods including compacting etc, complete.

Cum

209.25 216.00 45,198.00

3 Concreete 3.1 Providing and laying plain cement

concrete grade M-15 (20 MSA) compacting, curing etc, complete.

Cum 9.80 5,060.00 49,562.70

3.2 Providing and laying in situ Re-in forced cement concrete of M-20 (20 MSA) for foundation & bedding compacting, curing etc. complete.

Cum

24.04 5,767.00 138,660.31

4 Re-inforcement steel 4.1 Supplying, laying, fabrication,

transportation to the work site and installation of the reinforcing steel bars and welded wire fabric, including all tie wire, spacers and supports. All as shown on the drawings or as required by DLIP(I)PL and as specified

MT

3.83 60,090.00 230,192.77

5 Strcutural steel and metal work 5.1 The Fencing shall be done with 2.5 m

high posts of ISA 50 x 50 x 6 placed @ 1.5 m c/c with chain linked wire mesh for bottom 2.0 m portion of the post. The top 0.5 m portion of the post shall be protected with barbed wire. Painting shall be done as descri

R.M.

82.00 500.00 41,000.00

Page 106 of 140

Sr.No. Description of Items Unit Qty. Unit rate Amount Rs Rs

5.2 Providing and fabricating MS gate size 2 x 4m size including the steel columns, fixers,concreting painting with red oxide and two color coats of approved color as per the drawing and specifications

Sq.M.

9.00 1,000.00 9,000.00

6 Architectural works 6.1 Cement mortar for plaster on external

walls shall consists of an intimate mixture of sand, cement, water and a suitable waterproofing compound of “Sika” make or equivalent as approved by Puchaser for trenches and chambers

Sqm

252.08 159.00 40,080.72

7 Masonary works 7.1 Providing 230mm thick B.B. Masonry

with conventional I.S. type bricks in cement mortar 1:4 in super structure including striking joints, watering, scaffolding with all leads & lifts, complete.-For trenches etc

Switchgear room cum 22.47 3,041.00 68,319.11

8 Providing R R. Masonry with conventional Boulders in cement mortar 1:4 in super structure including striking joints, watering, scaffolding with all leads & lifts, complete.

compound wall Cu.m 63.96 2,602.00 166,423.92

9 Providing and erecting including assembling fitting & fixing doors, windows and partitions at all elevations, of all sizes including box type extruded anodised aluminium frames, mullions, transons with Aluminium handles, holdfasts, tower bolts etc.

Sqm

8.41 6,200.00 52,142.00

Total: 891,710.79 Say in Lacs 8.92

Page 107 of 140

M Hydro-mechanical

Sr.No. Description Unit Qty Rate Amount

(Rs) (Rs) 1 Penstock

1.1 Design, engineering and preparation of fabrication drawings & bill of materials complete in all respect for penstock and accessories Technical Specification and drawings including the following components

L.S. 1.00 100,000.00 100,000.00

a Straight ferrules b Bends c Y-piece d Manholes e Expansion joints f Saddle plates and hold fast

1.2 Supply of steel, transportation, cutting, rolling & fabrication of penstock components of required diamter including all applicable taxes and duties, delivered at site.Installation/ placing in position, welding for joining straight fei rules including pai

a Straight ferrules MT 13.22 107,483.00 1,420,925.26 b Bends MT - 85,000.00 - c Y-piece/Trifurcation MT - 85,000.00 - d Manholes MT - 85,000.00 - e Saddle plates and hold fast MT - 85,000.00 -

2 Gates 2.1 Design, engineering and

preparation of fabrication drawings & bill of materials complete of following gates in all respect as per Technical Specification

LS 1.00 100,000.00 100,000.00

a Intake stop log gate b Intake service gate c Intake shingl eflushing gate d Draft tube gate

Page 108 of 140

2.2 Supply of steel sections of following gates and its embedments including fabrication, installation/placing in position and painting/re-painting etc complete in all respecl including taxes and duties, transportation to site, testing and commissioning as pe

a Intake stop log gate leaf MT - 80,000.00 - b Intake service gate leaf MT - 80,000.00 - c Intake shingle flushing gate valve

300mm dia nos - 25,920.00 -

d Draft tube M T - 80,000.00 - e Draft tube gate 1st and 2nd stage

embeddments MT - 80,000.00 -

f Intake service gate 1st and 2nd stage embeddments

MT 1.00 113,430.00 113,430.00

g Draft tube gate MT 3.00 83,514.00 250,542.00

3 Trash rack 3.1 Design, engineering and

preparation of fabrication drawings & bill of materials complete of following trash racks in all respect as per Technical Specification

LS 1.00 100,000.00 100,000.00

a Diversion weir trash rack b De-silting unit c Forebay

3.2 Supply of steel sections of following trash racks and its embedments including fabrication, installation/placing in position and painting/re-painting etc complete in all respecl including taxes and duties, transportation to site, testing and commissioning

a Diversion weir trash rack MT - 80,000.00 - De-silting unit MT

b Forebay MT - 80,000.00 - c Diversion weir 1st and 2nd stage

embeddments MT - 80,000.00 -

d De-silting unit 1st and 2nd stage embeddments

MT - 80,000.00 -

e Forebay 1st and 2nd stage embeddments

MT - 80,000.00 -

4 Lifting/Hoisting arrangement

Page 109 of 140

a Intake stop log gate -Screw type- 5 Tonne Each

Nos - 40,000.00 -

b Intake service gate - 5 Tonne Each Nos - 40,000.00 - c Forebay gate -Chain pully block- 6

Tonne Each Nos - 50,000.00 -

d Draft tube gate -Chain pully block- 6 tonne Each

Nos 3.00 50,000.00 150,000.00

5 Expansion joints for penstock

a Expansion joints Nos - 75,000.00 - Total: 2,234,897.26 Say in Lacs 22.35

K - BUILDINGS

Sr.No. Item Unit Quantity Rate Amount

Rs. Rs.

1 Charges for hiring rental accomodation during construction for company staff for two years

Months 12.00 15,000.00 180,000.00

2 Temporary building for stay etc. Sqm 100.00 2,000.00 200,000.00

3 Pre-cast watchman cabins Nos 1.00 50,000.00 50,000.00

4 Electrification of campus and buildings

Job 1.00 100,000.00 100,000.00

Total 530,000.00 Rs. Lacs 5.30

Page 110 of 140

M - PLANTATION

Sr.No. Item Unit Quantity Rate Amount

Rs. Rs.

1 Green area development by plantation of trees near power house & forebay

Job L/S 200,000.00

2 Charges for Existing tree felling -forest

dept L.S. 90,000.00

Total 290,000.00 Rs. Lacs 2.90

O - MISCELLANEOUS Sr.No. Item Unit Quantity Rate Amount

Rs. Rs.

1 Purchase of vehical and running cost one each for Project Manger and other staff.

Nos. 1.00 600,000.00 600,000.00

2 Medical facilities, Security and

Compensation for accident / insurance cover etc.

Month 12.00 1,500.00 18,000.00

3 Computers, modem etc Nos 1.00 60,000.00 60,000.00

4 Communication facilities such as fax/telephone/internet connection etc

Month 12.00 1,500.00 18,000.00

5 Stationary for record purposes Month 12.00 1,500.00 18,000.00

6 Running of transit camp, canteen, guest house etc

Month 12.00 1,500.00 18,000.00

Total 114,000.00 Rs. Lacs 1.14

Page 111 of 140

Q - SPECIAL T & P Sr.No. Item Unit Quantity Rate Amount

Rs. Rs.

1 Testing equipments for concrete etc L.S. 1.00 50,000.00 50,000.00

2 Water pump with piping No 2.00 25,000.00 50,000.00

3 Chain pully blocks No 2.00 20,000.00 40,000.00

4 Portable diesel generator No 2.00 120,000.00 240,000.00

5 Survey instruments , tools Set 1.00 50,000.00 50,000.00 Total 380,000.00 Rs. Lacs 3.80

R - COMMUNICATION Sr.No. Item Unit Quantity Rate Amount

Rs. Rs.

1 Construction of temporary approach roads for construction and execution of works

Km 1.00 150,000.00 150,000.00

2 Establishing DOT communication

including procurement and laying of cable etc

L.S. L/S 10,000.00

Total 160,000.00 Rs. Lacs 1.60

Page 112 of 140

X - ENVIRONMENT AND ECOLOGY

Sr.No. Item Unit Quantity Rate Amount

Rs. Rs.

1 Pollution control measures such as soil conservation, river training structures, etc

L.S. 1.00 100,000.00 100,000.00

2 Community development expenses L.S. 1.00 100,000.00 100,000.00 Total 200,000.00 Rs. Lacs 2.00

Electrical and Mechanical Works

Sr. No.

Description Unit Qty Unit Price Total

1 Hydro Turbine comprising of associated systems

1.1 1X1000 KW, Kaplan Turbine set 1 4,787,000 4,787,000 a Draft Tube set 1 Included above Included above

b. Inlet valve set 1 1,200,000 1,200,000 c Gear Box set 1 1,400,000 1,400,000

1.2 Governor and Governing Equipment set 1 300,000 300,000 1.3 Pressure oil system set 1 250,000 250,000 1.4 Cooling water system set 1 200,000 200,000 1.5 Dewatering and drainage system set 1 186,000 186,000 1.6 Special tools and tackles for turbine

and auxiliaries set 1

1.7 All Embedded parts set 1 - - 1.8 Charges of Model Testing (If applicable ) set 1 - - 2 HOT Crane No 1 1,145,000 1,145,000 3 Fire fighting system Lot 1 250,000 250,000 4 HVAC System Lot 1 250,000 250,000 5 Generator

5.1 Synchronous generator Set 1 3,700,000 3,700,000 5.2 Static brushless excitation system Set 1 Included above Included above 6 Transformers

Page 113 of 140

6.1 3.3 kV / 33 kV, 1600 KVA three Phase Power Transformer Oil cooled complete with fittings and accessories

No 1 1,025,000 1,025,000

6.2 33 kV / 0.433 kV, 63 KVA Station Unit Auxiliary Transformer Oil cooled, complete with fittings with and auxiliaries

No 1 200,000 200,000

7 Tariff Metering as per MSEDCL scheme

7.1 Commercial Main Metering system Indoor Type comparising CT, PT & TOD meter etc. as per MSEDCL approved scheme

Set 1 150,000 150,000

7.2 Commercial Check Metering system Indoor Type comparising CT, PT & TOD meter etc. as per MSEDCL approved scheme

Set 1 150,000 150,000

8 Tap off point from 33 kV Transmission Line

8.1 Steel Poles / Galvanized steel structure suitable for mounting Isolator & LA and necessary arrangment of clapping of Cable supports & intconnection overhead Transimssion Line & Cables as per MSEDCL approved Scheme

Lot 1 200,000 200,000

8.2 36 kV, 3 phase, 400A, center rotating double break isolator with earth switch

No 1 50,000 50,000

8.3 30 kV class, single phase station class lightning arrestors

No 3 40,000 120,000

9 33 kV Indoor Switchboard including all items as per SLD & Technical specification

set 1 1,200,000 1,200,000

10 3.3 kV Switchboard including all items as per SLD & Technical specification

set 1 500,000 500,000

11 415 V Switchboard complete including all items as per SLD & Technical specification

set 1 400,000 400,000

12 LAVT cubicle including all items as per SLD & Technical specification

Set 1 200,000 200,000

13 Neutral grounding Transformer & resistance cubicle complete including all items as per SLD & Technical specification

Set 1 176,000 176,000

14 Power plant control, protection and monitoring complete including all items as per SLD & Technical specification

-

14.1 Unit Control Board set 1 100,000 100,000

Page 114 of 140

14.2 Synchronizing panel set 1 100,000 100,000 14.3 Generator Control, Monitering &

Protection panel with metering set 1 300,000 300,000

15 110 V/24 V DC, 60 AH,Battery, Battery Charger, DCDB, control supply system complete including all items as per Technical specification

set 1 100,000 100,000

16 Cables including all items as per SLD & Switchyard layout & Technical specifciations

Lot 1 500,000 500,000

16.1 3.3 kV (UE) XLPE cable Lot 1 Included above Included above

16.2 33 kV (E) XLPE cable Lot 1 Included above Included above

16.3 1.1 kV PVC/XLPE Lot 1 Included above Included above

16.4 Control & Instrumentation Cable Lot 1 Included above Included above

16.5 Cable Termination for all above Lot 1 Included above Included above

16.6 Cable supporting system comparising of Cable Trays, cable clamps, supporting steel structure etc.

Lot 1 Included above Included above

17 Illumination system for entire Power Plant including all items as per Technical specification

Lot 1 200,000 200,000

18 Station earthling system comparising of Earthpits, Earthmat & Erathing raisers including all items as per Technical specification

Lot 1 300,000 300,000

19 50 KVA, 415 V DG Set including all items as per Technical specification

No 1 200,000 200,000

20 Bay Extension work for Interconnection at receiving end Sub Station as per MSEDCL scheme

-

20.1 36 kV class, 10 kA single phase station class lightning arrestor outdoor type along with all mounting structure

Set 1 60,000 60,000

20.2 36 kV,25 kA,3 phase, 400A, center rotating double break Manual Operated Isolator with earth switch outdoor type along with all mounting structure

Set 1 70,000 70,000

20.3 CT as per SLD & Technical specification Set 1 60,000 60,000

Page 115 of 140

20.4 PT as per SLD & Technical specification Set 1 70,000 70,000 20.5 36 kV, 1250 A, 25 kA, VCB outdoor type

along with all mounting structure Set 1 200,000 200,000

20.6 36 kV Double Break Manual Operated Isolator

Set 1 50,000 50,000

20.7 Breaker Control & Relay Panel as per SLD & Technical specification

Set 1 80,000 80,000

20.8 Power & Control Cables & termination / Cable supporting system

Lot 1 Included in Sr. No. 16

Included in Sr. No. 16

20.9 Earthing System for Metering & Bay Extension work comparising of Earthpit, Earthmat & Erathing raisers

Lot 1 Included in Sr. no.18

Included in Sr. no.18

20.10 Illumination system for Sub Sation extended Bay

Lot 1 Included in Sr. no 14

Included in Sr. no 14

21 Sub Total 20,349,000 20,429,000

22 Mandatory Spares Lot 1 1,500,000 23 Special Tools & Tackles Lot 1 500,000 24 Supply Sub-total: 22,429,000 25 Services a Freight and insurance 1,430,030 b Erection, Testing and Commissioning,

Unloading at site, Storage etc. Lot 1 1,600,000

c 100 days Operation Included above

26 Services Sub-total: 3,030,030 27 Total for Supply & Services 25,459,030

28 Taxes and duties a Custom Duty b Excise duty 12.5

1% 2,805,868

c Sales Tax 2.00%

448,580

d Service Tax on Freight and insurance 12.36%

88,376

e Service Tax on Erection, Testing and Commissioning, Unloading at site, Storage

12.36%

197,760

f Service Tax on O & M Included above

29 Sub-Total 3,540,584

30 Grand Total Lot 28,999,614 Rs Lakhs 290.00

Page 116 of 140

APPENDIX -12 A

Abstract of Project Cost

Sr. No. Particulars Cost, Rs. Lac 1 Civil, Electrical and Mechanical works

a Civil work 220.07b Electrical & mechanical cost 290.00c Transmission works 5.00d E & M inclusive of transmission 295.00e Project cost without IDC, FC & others 515.07

2 Interest During Construction (IDC) 22.92 3 Financial Charges

a Financial institiution fees 1% 5.15

b Statutory clearence 5.00

c Financial consultancy 10.00

d Loan application charges 1.00 e Sub-total:2 21.15

4 Preliminary expenses

a Company formation fees 2.00b Misc. pre incorporation fees 1.00

Sub-total:a 3.00 Pre-operative expenses

a Upfront premium 25.50

b Legal expenses, board meeting, inagural expenses

1.00

c Insurance during construction 2.58

d Contingencies 3.87 Sub-total:b 32.94

Sub-total:(a+b) 35.94 5 Project Cost 595.08

Page 117 of 140

6 Working Capital Requirements a Receivables @ 2 months -1st year 13.67b O&M @ 1 months 1.23c Sub-total:7 14.90

7 Margin Money for WC 30% 4.47 8 Sources of Fund Loan 60% 357.05 Equity 40% 242.509 Total Project Cost 599.56 ANNEXURE -12B Phasing of capital expenditure Sr.No. Quarter Civil E &M Other Total

Rs. In Lacs 1 Quarter1 22.0 29.50 17.02 68.53 2 Quarter2 44.0 59.00 18.86 121.87 3 Quarter3 88.0 118.00 22.98 229.01 4 Quarter4 66.0 88.50 21.15 175.67 5 Quarter5 - - - - 6 Quarter6 - - - - 7 Quarter7 - - - - 8 Quarter8 - - - -

Total 220.1 295.0 80.01 595.08

Page 118 of 140

ANNEXURE - 12 C Calculations of IDC Term loan interest rate 12.00%

Term loan interest

rate 12.00% Quarte

r Expenditure Own Loan amt. Loan period IDC

Rs. In Lacs Rs. Rs. Months 1 68.53 27.41 41.12 3.00 1.23 2 190.40 76.16 114.24 3.00 3.43 3 419.41 167.77 251.65 3.00 7.55 4 595.08 238.03 357.05 3.00 10.71 5 - - - - 6 - - - - 7 - - - - - 8 - - - - -

- - - - 22.92 ANNEXURE – 12 D Table : Calculations of Interest on Term Loan

Loan Amount 357.05 MNES subsidy 150.00

Installment (Quarterly) 5.45

Interest rate 12.00%

Figures in Rupees lacs

Year Amount Repayment Quarter Ending Quarterly Annual Repayment from third year of poject Repayment Outstanding Interest Interest

357.05 I 357.05 0.00 10.71 357.05 150.00 10.71 207.05 5.45 6.21 201.60 5.45 160.90 196.15 6.05 33.68 II 196.15 5.45 5.88 190.70 5.45 5.72 185.26 5.45 5.56

Page 119 of 140

179.81 5.45 21.79 174.36 5.39 22.56 III 174.36 5.45 5.23 168.91 5.45 5.07 163.46 5.45 4.90 158.01 5.45 21.79 152.56 4.74 19.94

IV 152.56 5.45 4.58 147.12 5.45 4.41 141.67 5.45 4.25 136.22 5.45 21.79 130.77 4.09 17.33 V 130.77 5.45 3.92 125.32 5.45 3.76 119.87 5.45 3.60 114.42 5.45 21.79 108.97 3.43 14.71

VI 108.97 5.45 3.27 103.53 5.45 3.11 98.08 5.45 2.94 92.63 5.45 21.79 87.18 2.78 12.10

VII 87.18 5.45 2.62 81.73 5.45 2.45 76.28 5.45 2.29 70.83 5.45 21.79 65.38 2.12 9.48

VIII 65.38 5.45 1.96 59.94 5.45 1.80 54.49 5.45 1.63 49.04 5.45 21.79 43.59 1.47 6.87

IX 43.59 5.45 1.31 38.14 5.45 1.14 32.69 5.45 0.98 27.24 5.45 21.79 21.79 0.82 4.25 X 21.79 5.45 0.65 16.35 5.45 0.49 10.90 5.45 0.33 5.45 5.45 21.79 0.00 0.16 1.63

Total : 357.05 357.05 142.55

Page 120 of 140

1 x1000 kW Bembla hydroelectric Project Annexure 12 E

Table 2: Balance SheetFigures in Rs. Lac Figures in Rupees lacs

Sr. No. Particulars01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

ASSETS1 Cost capitalised (Gross Block) 592.08 592 592 592 592 592 592 592 592 592 592 592 592 592 592 592 592 592 592 592 592 592 592 592 592 592 592 592 592 592 2 Less: depreciation 77 144 202 252 295 333 365 394 418 440 458 475 489 501 512 522 530 537 544 549 554 558 562 566 569 571 574 576 577 579 3 Net block 515 448 390 340 297 259 227 198 174 152 134 117 103 91 80 71 62 55 49 43 38 34 30 26 23 21 19 16 15 13 4 working Capital 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 5 Preliminary expenses 3 2 2 2 2 1 1 1 0 - - - - - - - - - - - - - - - - - - - - - 6 Other Current Assets 10.43 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 7 Investment and Cash 21 43 69 97 128 163 201 230 262 285 313 339 354 368 382 395 409 422 436 449 463 477 491 506 521 536 552 568 585 602 8 Total assets 554 509 476 454 442 439 444 444 451 452 462 471 472 474 477 481 486 492 499 507 515 525 536 547 559 572 585 600 614 630

LIABILITIES1 Equity 243 243 243 243 243 243 243 243 243 243 243 243 243 243 243 243 243 243 243 243 243 243 243 243 243 243 243 243 243 243 2 MNES Subsidy 150 150 150 150 150 150 150 150 150 150 150 150 150 150 150 150 150 150 150 150 150 150 150 150 150 150 150 150 150 150 3 Reserves (45) (69) (80) (80) (70) (51) (25) (3) 26 49 59 68 69 71 74 78 83 89 96 104 112 122 133 144 156 169 182 197 211 227 4 Term loan 196 174 153 131 109 87 65 44 22 - - - - - - - - - - - - - - - - - - - - - 5 Working capital loan 10.43 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 6 Total liabilities 554 509 476 454 442 439 444 444 451 452 462 471 472 474 477 481 486 492 499 507 515 525 536 547 559 572 585 600 614 630

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Table 3: Profit and Loss StatementFigures in Rs. Lac Figures in Rupees lacs

Sr. No. Particulars01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

1 INCOME1.1 Saleable units Lacs KWh 22.57 22.57 22.57 22.57 22.57 22.57 22.57 22.57 22.57 22.57 22.57 22.57 22.57 22.57 22.57 22.57 22.57 22.57 22.57 22.57 22.57 22.57 22.57 22.57 22.57 22.57 22.57 22.57 22.57 22.57 1.2 Sale rate Rs. Per Unit 2.84 2.87 2.90 2.93 2.96 2.99 3.02 3.05 3.08 3.11 3.11 3.11 3.11 3.11 3.11 3.14 3.17 3.20 3.23 3.26 3.31 3.36 3.41 3.46 3.51 3.56 3.61 3.66 3.71 3.76 1.3 Electricity Sale Income 64.10 64.78 65.46 66.14 66.81 67.49 68.17 68.84 69.52 70.20 70.20 70.20 70.20 70.20 70.20 70.88 71.55 72.23 72.91 73.58 74.71 75.84 76.97 78.10 79.23 80.36 81.48 82.61 83.74 84.87 1.4 Reinvestment Income - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1.5 Income from CER sale 17.90 17.90 17.90 17.90 17.90 17.90 17.90 17.90 17.90 17.90 1.6 Total Income 82.01 82.68 83.36 84.04 84.72 85.39 86.07 86.75 87.42 88.10 70.20 70.20 70.20 70.20 70.20 70.88 71.55 72.23 72.91 73.58 74.71 75.84 76.97 78.10 79.23 80.36 81.48 82.61 83.74 84.87

2 OPERATING EXPENDITURE2.1 O & M expenses 12.56 12.56 12.56 12.56 12.56 12.56 12.56 12.56 12.56 12.56 12.56 12.56 12.56 12.56 12.56 12.56 12.56 12.56 12.56 12.56 12.56 12.56 12.56 12.56 12.56 12.56 12.56 12.56 12.56 12.56 2.2 Royalty on water 1.13 1.19 1.24 1.31 1.37 1.44 1.51 1.59 1.67 1.75 1.84 1.93 2.03 2.13 2.23 2.35 2.46 2.59 2.72 2.85 2.99 3.14 3.30 3.47 3.64 3.82 4.01 4.21 4.42 4.65 2.3 Land lease charges 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 2.4 Maintenance of penstock & intake 1.13 1.19 1.24 1.31 1.37 1.44 1.51 1.59 1.67 1.75 1.84 1.93 2.03 2.13 2.23 2.35 2.46 2.59 2.72 2.85 2.99 3.14 3.30 3.47 3.64 3.82 4.01 4.21 4.42 4.65 2.5 Operating Expenses 14.82 14.93 15.05 15.17 15.30 15.44 15.59 15.74 15.90 16.06 16.24 16.42 16.62 16.82 17.03 17.25 17.49 17.74 17.99 18.27 18.55 18.85 19.16 19.50 19.84 20.21 20.59 20.99 21.41 21.85

3 PBDIT 67.19 67.75 68.31 68.87 69.41 69.95 70.48 71.01 71.53 72.04 53.96 53.78 53.58 53.38 53.17 53.62 54.06 54.50 54.91 55.32 56.16 56.99 57.81 58.60 59.39 60.15 60.90 61.62 62.33 63.02 4 Depreciation 77.28 66.78 57.76 50.00 43.32 37.56 32.60 28.32 24.62 21.43 18.66 16.27 14.20 12.41 10.85 9.49 8.31 7.29 6.40 5.62 4.94 4.35 3.83 3.37 2.98 2.63 2.32 2.05 1.82 1.61 5 Preliminary expenses w/o 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 - - - 6 PBIT (10.39) 0.67 10.25 18.57 25.80 32.09 37.59 42.39 46.61 50.31 35.30 37.50 39.38 40.98 42.32 44.13 45.75 47.21 48.52 49.70 51.22 52.65 53.98 55.23 56.41 57.52 58.58 59.57 60.51 61.41 7 INTEREST

7.1 Term loan 357.05 196.15 174.36 152.56 130.77 108.97 87.18 65.38 43.59 21.79 - 7.2 Interest on term loans 33.68 22.56 19.94 17.33 14.71 12.10 9.48 6.87 4.25 1.63 - - - - - - - - - - - - - - - - - - - - 7.3 Working capital loan 10.43 10.43 10.43 10.43 10.43 10.43 10.43 10.43 10.43 10.43 10.43 10.43 10.43 10.43 10.43 10.43 10.43 10.43 10.43 10.43 10.43 10.43 10.43 10.43 10.43 10.43 10.43 10.43 10.43 10.43 7.4 Interest on working capital 1.36 1.36 1.36 1.36 1.36 1.36 1.36 1.36 1.36 1.36 1.36 1.36 1.36 1.36 1.36 1.36 1.36 1.36 1.36 1.36 1.36 1.36 1.36 1.36 1.36 1.36 1.36 1.36 1.36 1.36 7.5 Total Interest 35.04 23.91 21.30 18.68 16.07 13.45 10.84 8.22 5.61 2.99 1.36 1.36 1.36 1.36 1.36 1.36 1.36 1.36 1.36 1.36 1.36 1.36 1.36 1.36 1.36 1.36 1.36 1.36 1.36 1.36

8 Profit before tax (PBT) (45.43) (23.24) (11.05) (0.12) 9.73 18.64 26.75 34.17 41.00 47.32 33.94 36.15 38.03 39.62 40.97 42.77 44.39 45.85 47.16 48.34 49.87 51.29 52.62 53.87 55.05 56.17 57.22 58.22 59.16 60.05 8.1 Add book depreciation 77.28 66.78 57.76 50.00 43.32 37.56 32.60 28.32 24.62 21.43 18.66 16.27 14.20 12.41 10.85 9.49 8.31 7.29 6.40 5.62 4.94 4.35 3.83 3.37 2.98 2.63 2.32 2.05 1.82 1.61 8.2 Less IT depreciation 76.16 66.00 57.24 49.68 43.15 37.51 32.63 28.41 24.75 21.58 18.84 16.45 14.38 12.58 11.01 9.65 8.46 7.43 6.53 5.74 5.05 4.44 3.92 3.45 3.05 2.69 2.38 2.10 1.86 1.65 8.3 Total (44.31) (22.46) (10.53) 0.20 9.89 18.69 26.72 34.08 40.87 47.17 33.77 35.97 37.85 39.44 40.80 42.61 44.24 45.71 47.03 48.23 49.76 51.19 52.53 53.79 54.98 56.10 57.16 58.16 59.11 60.01

Cumulative (44.31) (66.78) (77.31) (77.10) (67.21) (48.52) (21.80) 12.28 53.16 100.32 134.09 170.06 207.91 247.35 288.15 330.76 375.01 420.72 467.75 515.97 565.73 616.93 669.46 723.25 778.24 834.34 891.50 949.67 1,008.78 1,068.79 8.4 MAT - - - - 1.10 2.11 3.03 3.87 4.65 5.36 - - - - - - - - - - - - - - - - - - - - 8.5 Corporate tax - - - 0.07 3.36 6.35 9.08 11.58 13.89 16.03 11.48 12.23 12.86 13.41 13.87 14.48 15.04 15.54 15.99 16.39 16.91 17.40 17.86 18.28 18.69 19.07 19.43 19.77 20.09 20.40 8.6 Credit of MAT - - - - - - - - - - 11.48 9.59 - - - - - - - - - - - - - - - - - -

9 Income tax - - - - - - - - - - (0.00) 2.64 12.86 13.41 13.87 14.48 15.04 15.54 15.99 16.39 16.91 17.40 17.86 18.28 18.69 19.07 19.43 19.77 20.09 20.40 10 Profit after tax (PAT) (45.43) (23.24) (11.05) (0.12) 9.73 18.64 26.75 34.17 41.00 47.32 33.94 33.51 25.16 26.21 27.10 28.29 29.36 30.31 31.17 31.95 32.95 33.89 34.77 35.59 36.37 37.10 37.79 38.44 39.07 39.65 11 Return on equity/ dividend - - - - - - - 12.13 12.13 24.25 24.25 24.25 24.25 24.25 24.25 24.25 24.25 24.25 24.25 24.25 24.25 24.25 24.25 24.25 24.25 24.25 24.25 24.25 24.25 24.25 12 Retained earnings (45.43) (23.24) (11.05) (0.12) 9.73 18.64 26.75 22.05 28.88 23.07 9.69 9.26 0.91 1.96 2.85 4.04 5.10 6.06 6.92 7.70 8.70 9.64 10.52 11.34 12.11 12.85 13.54 14.19 14.82 15.40

1 Civil work including escalation 220.07 2 E & M work including escalation 295.00 Total: 515.07 3 IDC +Financial charges+Pre-operative 77.01 4 Cost after capitalisation5 Civil work 253.0 6 E & M 339.1 Total: 592.08 Figures in Rs. Lac Figures in Rupees lacsSr.No. Particulars

01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30A Rate of depreciation Civil 10.00% E &M 15.33%

1 Project cost-civil work 253 228 205 184 166 149 134 121 109 98 88 79 71 64 58 52 47 42 38 34 31 28 25 22 20 18 16 15 13 12 2 Project cost -E & M 339 287 243 206 174 148 125 106 90 76 64 54 46 39 33 28 24 20 17 14 12 10 9 7 6 5 4 4 3 3 3 Total cost 592 515 448 390 340 297 259 227 198 174 152 134 117 103 91 80 71 62 55 49 43 38 34 30 26 23 21 19 16 15 4 Depreciation-Civil 25 23 20 18 17 15 13 12 11 10 9 8 7 6 6 5 5 4 4 3 3 3 2 2 2 2 2 1 1 1 5 Depreciation-E & M 52 44 37 32 27 23 19 16 14 12 10 8 7 6 5 4 4 3 3 2 2 2 1 1 1 1 1 1 0 0 6 Depreciation-Total 77 67 58 50 43 38 33 28 25 21 19 16 14 12 11 9 8 7 6 6 5 4 4 3 3 3 2 2 2 2 7 WDV 515 448 390 340 297 259 227 198 174 152 134 117 103 91 80 71 62 55 49 43 38 34 30 26 23 21 19 16 15 13

B As per Income tax method1 Rate of depreciation Civil 10% E &M 15%2 Project cost-civil work 253 228 205 184 166 149 134 121 109 98 88 79 71 64 58 52 47 42 38 34 31 28 25 22 20 18 16 15 13 12 3 Project cost -E & M 339 288 245 208 177 150 128 109 92 79 67 57 48 41 35 30 25 21 18 15 13 11 9 8 7 6 5 4 4 3 4 Total cost; 592 516 450 393 343 300 262 230 201 177 155 136 120 105 93 82 72 64 56 50 44 39 34 30 27 24 21 19 17 15 5 Depreciation-Civil 25 23 20 18 17 15 13 12 11 10 9 8 7 6 6 5 5 4 4 3 3 3 2 2 2 2 2 1 1 1 6 Depreciation-E & M 51 43 37 31 27 23 19 16 14 12 10 9 7 6 5 4 4 3 3 2 2 2 1 1 1 1 1 1 1 0 7 Depreciation-Total 76 66 57 50 43 38 33 28 25 22 19 16 14 13 11 10 8 7 7 6 5 4 4 3 3 3 2 2 2 2 8 WDV 516 450 393 343 300 262 230 201 177 155 136 120 105 93 82 72 64 56 50 44 39 34 30 27 24 21 19 17 15 13

Year

Year

Year Year

Year

Year

Table 4: Schedule for Calculations of Depreciation

7/27/2010 Page 139

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1 x1000 kW Bembla hydroelectric Project Annexure 12 E

Table 8 : Cash FlowFigures in Rs. Lac Figures in Rs. Lacs

S.N. Particulars01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

1 SOURCES OF FUND1.1 PBDIT 67.2 67.8 68.3 68.9 69.4 70.0 70.5 71.0 71.5 72.0 54.0 53.8 53.6 53.4 53.2 53.6 54.1 54.5 54.9 55.3 56.2 57.0 57.8 58.6 59.4 60.2 60.9 61.6 62.3 63.0 1.2 MNES Subsidy 150.0 1.3 Total inflow 217.2 67.8 68.3 68.9 69.4 70.0 70.5 71.0 71.5 72.0 54.0 53.8 53.6 53.4 53.2 53.6 54.1 54.5 54.9 55.3 56.2 57.0 57.8 58.6 59.4 60.2 60.9 61.6 62.3 63.0

2 USES OF FUND2.1 Repayment of loan 160.9 21.8 21.8 21.8 21.8 21.8 21.8 21.8 21.8 21.8 - - - - - - - - - - - - - - - - - - - - 2.2 Interest 35.0 23.9 21.3 18.7 16.1 13.5 10.8 8.2 5.6 3.0 1.4 1.4 1.4 1.4 1.4 1.4 1.4 1.4 1.4 1.4 1.4 1.4 1.4 1.4 1.4 1.4 1.4 1.4 1.4 1.4 2.3 Income tax - - - - - - - - - - (0.0) 2.6 12.9 13.4 13.9 14.5 15.0 15.5 16.0 16.4 16.9 17.4 17.9 18.3 18.7 19.1 19.4 19.8 20.1 20.4 2.4 Total Outflow 195.9 45.7 43.1 40.5 37.9 35.2 32.6 30.0 27.4 24.8 1.4 4.0 14.2 14.8 15.2 15.8 16.4 16.9 17.3 17.7 18.3 18.8 19.2 19.6 20.0 20.4 20.8 21.1 21.4 21.8

3 Net inflow 21.3 22.0 25.2 28.4 31.5 34.7 37.9 41.0 44.1 47.3 52.6 49.8 39.4 38.6 37.9 37.8 37.7 37.6 37.6 37.6 37.9 38.2 38.6 39.0 39.3 39.7 40.1 40.5 40.9 41.3 Dividend - - - - - - - 12.1 12.1 24.3 24.3 24.3 24.3 24.3 24.3 24.3 24.3 24.3 24.3 24.3 24.3 24.3 24.3 24.3 24.3 24.3 24.3 24.3 24.3 24.3

4 Cumulative cash 21.3 43.3 68.5 96.9 128.5 163.2 201.0 229.9 261.9 284.9 313.2 338.8 353.9 368.3 381.9 395 408.9 422.3 435.6 448.9 462.5 476.5 490.9 505.6 520.7 536.1 552.0 568.2 584.9 601.9

Figures in Rupees lacsFigures in Rs. Lac Figures in Rupees Lacs

S.N. Particulars01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

1 Income 1.1 Saleable units Lacs KWh 22.6 22.6 22.6 22.6 22.6 22.6 22.6 22.6 22.6 22.6 22.6 22.6 22.6 22.6 22.6 22.6 22.6 22.6 22.6 22.6 22.6 22.6 22.6 22.6 22.6 22.6 22.6 22.6 22.6 22.6

2 Expenditure2.1 Operating expenses 14.8 14.9 15.0 15.2 15.3 15.4 15.6 15.7 15.9 16.1 16.2 16.4 16.6 16.8 17.0 17.3 17.5 17.7 18.0 18.3 18.6 18.9 19.2 19.5 19.8 20.2 20.6 21.0 21.4 21.9 2.2 Preliminary expenses w/o 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 - - - - - - - - - - - - - - - - - - - - 2.3 Interest on loan 35.0 23.9 21.3 18.7 16.1 13.5 10.8 8.2 5.6 3.0 1.4 1.4 1.4 1.4 1.4 1.4 1.4 1.4 1.4 1.4 1.4 1.4 1.4 1.4 1.4 1.4 1.4 1.4 1.4 1.4 2.4 Depreciation 77.3 66.8 57.8 50.0 43.3 37.6 32.6 28.3 24.6 21.4 18.7 16.3 14.2 12.4 10.8 9.5 8.3 7.3 6.4 5.6 4.9 4.3 3.8 3.4 3.0 2.6 2.3 2.1 1.8 1.6 2.5 Return on equity/Dividend - - - - - - - 12.1 12.1 24.3 24.3 24.3 24.3 24.3 24.3 24.3 24.3 24.3 24.3 24.3 24.3 24.3 24.3 24.3 24.3 24.3 24.3 24.3 24.3 24.3 2.6 Discounting Factor 0.909 0.826 0.751 0.683 0.621 0.564 0.513 0.467 0.424 0.386 0.350 0.319 0.290 0.263 0.239 0.218 0.198 0.180 0.164 0.149 0.135 0.123 0.112 0.102 0.092 0.084 0.076 0.069 0.063 0.057 2.7 Disounted ROE - - - - - - - 5.66 5.14 9.35 8.50 7.73 7.02 6.39 5.81 5.28 4.80 4.36 3.97 3.60 3.28 2.98 2.71 2.46 2.24 2.03 1.85 1.68 1.53 1.39 2.8 Levelised ROE 10.6 2.6 Total Expenditure 127.4 105.9 94.4 84.2 75.0 66.8 59.3 64.7 58.5 65.0 60.5 58.3 56.4 54.8 53.5 52.4 51.4 50.6 50.0 49.5 49.1 48.8 48.6 48.5 48.4 48.4 48.5 48.6 48.8 49.1

3 Generation cost Rs./Unit 5.65 4.69 4.18 3.73 3.32 2.96 2.63 2.87 2.59 2.88 2.68 2.58 2.50 2.43 2.37 2.32 2.28 2.24 2.22 2.19 2.18 2.16 2.15 2.15 2.15 2.15 2.15 2.16 2.16 2.17 4 Discounting Factor 0.909 0.826 0.751 0.683 0.621 0.564 0.513 0.467 0.424 0.386 0.350 0.319 0.290 0.263 0.239 0.218 0.198 0.180 0.164 0.149 0.135 0.123 0.112 0.102 0.092 0.084 0.076 0.069 0.063 0.057 5 Disounted cost of energy 5.13 3.88 3.14 2.55 2.06 1.67 1.35 1.34 1.10 1.11 0.94 0.82 0.72 0.64 0.57 0.50 0.45 0.40 0.36 0.33 0.29 0.27 0.24 0.22 0.20 0.18 0.16 0.15 0.14 0.12 6 Levelised cost of generation 3.29 7 Average cost of generation 4.31 2.79 2.51 2.25 2.16 2.15 2.16 8 Average cost (30 years basis) 2.70

Figures in Rs. Lac Figures in Rupees lacsS.N. Particulars

01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 301 IRR

1.1 Project cost Excluding Margine Money 595.1 1.2 Net Profit After Tax (45.4) (23.2) (11.0) (0.1) 9.7 18.6 26.7 34.2 41.0 47.3 33.9 33.5 25.2 26.2 27.1 28.3 29.4 30.3 31.2 32.0 33.0 33.9 34.8 35.6 36.4 37.1 37.8 38.4 39.1 39.7 1.3 Depriciation 77.3 66.8 57.8 50.0 43.3 37.6 32.6 28.3 24.6 21.4 18.7 16.3 14.2 12.4 10.8 9.5 8.3 7.3 6.4 5.6 4.9 4.3 3.8 3.4 3.0 2.6 2.3 2.1 1.8 1.6 1.4 Add: MNES Subsidy 150.00 1.5 Interest on Term Loan 33.7 22.6 19.9 17.3 14.7 12.1 9.5 6.9 4.2 1.6 - - - - - - - - - - - - - - - - - - - - 1.6 Prem. & Pre. Ope. Exp. Written off 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 - - - - - - - - - - - - - - - - - - - - 1.6 Net operating cashflow 215.83 66.40 66.96 67.51 68.06 68.60 69.13 69.65 70.17 70.68 52.61 49.78 39.36 38.62 37.95 37.78 37.67 37.60 37.57 37.57 37.89 38.24 38.59 38.96 39.34 39.72 40.11 40.50 40.88 41.26 1.7 (595.1) 215.83 66.40 66.96 67.51 68.06 68.60 69.13 69.65 70.17 70.68 52.61 49.78 39.36 38.62 37.95 37.78 37.67 37.60 37.57 37.57 37.89 38.24 38.59 38.96 39.34 39.72 40.11 40.50 40.88 41.26 1.8 12.70

2 Project Payback Period 1 2 3 4 5 6 7 8 9 10 2.1 Total project cost Exculding Margine Money 595.1 2.2 Profit after tax (45.4) (23.2) (11.0) (0.1) 9.7 18.6 26.7 34.2 41.0 47.3 33.9 33.5 25.2 26.2 27.1 28.3 29.4 30.3 31.2 32.0 33.0 33.9 34.8 35.6 36.4 37.1 37.8 38.4 39.1 39.7 2.3 Add book depreciation 77.3 66.8 57.8 50.0 43.3 37.6 32.6 28.3 24.6 21.4 18.7 16.3 14.2 12.4 10.8 9.5 8.3 7.3 6.4 5.6 4.9 4.3 3.8 3.4 3.0 2.6 2.3 2.1 1.8 1.6 2.4 Prem. & Pre Operative Exp. 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 - 2.5 MNES Subsidy 150.00 2.6 Total: 182.2 43.8 47.0 50.2 53.3 56.5 59.6 62.8 65.9 69.0 52.6 49.8 39.4 38.6 37.9 37.8 37.7 37.6 37.6 37.6 37.9 38.2 38.6 39.0 39.3 39.7 40.1 40.5 40.9 41.3 2.7 Cumulative 182.2 226.0 273.0 323.2 376.5 433.0 492.7 555.5 621.4 690.4 743.0 792.8 832.2 870.8 908.8 946.5 984.2 1,021.8 1,059.4 1,096.9 1,134.8 1,173.1 1,211.7 1,250.6 1,290.0 1,329.7 1,369.8 1,410.3 1,451.2 1,492.5 2.8 Payback Period in years 8.63

3 Debt Service Coverage Ratio3.1 PAT as per P& L a/c (45.4) (23.2) (11.0) (0.1) 9.7 18.6 26.7 34.2 41.0 47.3 33.9 33.5 25.2 26.2 27.1 28.3 29.4 30.3 31.2 32.0 33.0 33.9 34.8 35.6 36.4 37.1 37.8 38.4 39.1 39.7 3.2 Add: Interest on Term Loan 33.7 22.6 19.9 17.3 14.7 12.1 9.5 6.9 4.2 1.6 - - - - - - - - - - - - - - - - - - - - 3.3 Add: Depreciation 77.3 66.8 57.8 50.0 43.3 37.6 32.6 28.3 24.6 21.4 18.7 16.3 14.2 12.4 10.8 9.5 8.3 7.3 6.4 5.6 4.9 4.3 3.8 3.4 3.0 2.6 2.3 2.1 1.8 1.6 3.4 P& P Exp. Written off 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 - - 3.5 MNES Subsidy 150.00 3.6 Cash available for services 215.8 66.4 67.0 67.5 68.1 68.6 69.1 69.7 70.2 70.7 52.6 49.8 39.4 38.6 37.9 37.8 37.7 37.6 37.6 37.6 37.9 38.2 38.6 39.0 39.3 39.7 40.1 40.5 40.9 41.3 3.7 Interest on Term Loan 33.7 22.6 19.9 17.3 14.7 12.1 9.5 6.9 4.2 - - - - - - - - - - - - - - - - - - - - - 3.8 Term loan repayments 160.9 21.8 21.8 21.8 21.8 21.8 21.8 21.8 21.8 21.8 - - - - - - - - - - - - - - - - - - - - 3.9 Total obligation 194.6 44.4 41.7 39.1 36.5 33.9 31.3 28.7 26.0 21.8 - - - - - - - - - - - - - - - - - - - -

3.10 DSCR 1.11 1.50 1.60 1.73 1.86 2.02 2.21 2.43 2.69 3.24 - 3.11 Average DSCR 2.04 3.12 Weighted Average DSCR 1.67

Year

Table 10: Calculations of Financing Parameters

Year

Table 9: Cost of Energy Generation

Year Year

Year Year

7/27/2010 Page 139

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PART- III

PHOTOGRAPHS

Bembla Hydro Electric Project

Bembla Intake

Irrigation Canal

Bembla Hydro Electric Project

L ti f P H• Location of Power House

Irrigation outlet and canal

ICPO – Power Limb

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PART- IV

DRAWINGS

PART IV - DRAWINGS Sr.No. Title Drawing Number Revision

1 Index Map 64-02-01 R0 2 Schematic layout of scheme 64-02-02 R0 3 Contour Plan on d/s of Dam 64-02-03 R0 4 Project Layout Plan 64-02-04 R0 5 Plan & Cross section of dam with ICPO 64-02-05 R0 6 W.C. System – Plan & Section 64-02-06 R0 7 Power house-Plan 64-02-07 R1 8 Power house-Section 64-02-08 R1 9 Trash rack panel ( Existing ) 64-02-10 R0 10 Land acquisition Plan 64-02-11 R0 11 Single line diagram 64-02-12 R0 12 Switchyard Plan & Section 64-02-13 R0

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