TRANSCO 2009 Five Year Electricity Planning Statement ... · Five Year Electricity Planning Statement (2010-2014) ... Five-Year Electricity Planning Statement ... New 400/220kV grid

Main Report (Volume 1)

TRANSCO 2009 Five Year Electricity Planning Statement

(2010-2014)

Asset Management Directorate Power Network Development Department

December 2009

Transco 2009 5YPS (2010-2014) Page 2 of 51 AMD/PNDD

Preface

Pursuant to Condition 15 of the Transmission Licence, we attach herewith the TRANSCO 2009

Five-Year Electricity Planning Statement (2010-2014) or simply a Statement as referred in this

document, which consists of two volumes, Main Report (Vol.1) and Annexure (Vol. 2). This

Statement is a strategic document designed to fulfill the requirements of the Condition 15 of the

Transmission Licence.

The Main Report (Volume.1) presents an executive summary and briefly highlights the electricity

demand forecast and generation expansion plans, planning principles, electricity transmission

system expansion plans; metering, data exchange and communication system plans; opportunities

and deviations in the strategic plans. The major deviations in the strategic plans for the development

of power transmission system adopted in this Five Year Electricity Planning Statement compared to

the previous Five Year Planning Statement are also highlighted. The attachments of the Main Report

consists of updated demand forecast and expected capacity at demand supply points; generation

capacity - power station wise for the planning horizon; and 400kV, 220kV and 132kV network

topology for Year 2009-2014.

The Annexure (Vol.2) contains power flows on each branch in PSS/E format; and fault levels at the

grid stations and substations in the transmission system for the valid peak & off-peak load

conditions for next five years; and dataset of the electricity transmission system.

For any technical queries and copy of the Statement available on request from;

Dr. Zein Baba

Power Network Development Department Manager

Abu Dhabi Transmission & Despatch Company (TRANSCO)

P.O.Box 173, Abu Dhabi, U.A.E

[email protected]


Table of Contents Main Report (Volume 1) Preface…………………………………………..…………………………………………………….2 Table of Contents…………………………………………………………………..………...….…....3 1 License Requirements……………………………….…………………...………..….……..….5 2 Planning Horizon and Data Input Time Line…………………………………………………...5 3 Purpose and Scope of the Statement………………………………………………..….…...….5 4 Executive Summary…….……..……………………………….………………………..……..5 5 Demand Forecast and Generation Capacity Expansion Plan.…...………………………....…12 6 Planning Principles………………...………………………………………….................…....24 7 Electricity Transmission System Expansion Plans and System Performance………...............29 8 Power Critical Assets………………………………………...………………………………..42 9 Power Projects Influenced or Directed by External Factors………………………...………...43 10 High Level Area Strategic Projects……….……………...……………..……………………43 11 Metering, Data Exchange and Communication System Plans…….……………..….……......44 12 Opportunities and Deviations to the Previous Strategic Plans…..………………...….........…48 Main Report Attachments Attachment-1 Electricity Generation Capacity Expansion Plan and Electricity Demand Forecast (at supply points) for Yr 2009-2014.

Attachment-2

Electricity Transmission Network Topology for Yr 2009-2014.

Attachment-3

400kV and 220kV Electricity Transmission Network Topology - Geo Maps (Year 2009 & 2014).


Table of Contents Annexure (Volume 2) Annexure-A Power Flows in Transmission Network for Yr 2009-2014.

Annexure-B Fault Levels at Grid Stations and Substations for Yr 2009-2014. Annexure-C Generators, Generator Unit Transformers, Power Transformers and Line Dataset.


1 License Requirements

Condition 15 of the Transmission License requires Abu Dhabi Transmission and Despatch Company

(TRANSCO) to submit its Five-Year Electricity Planning Statement (5YPS) annually in a form

approved by the Regulation and Supervision Bureau (RSB or Bureau), showing the demand forecast

and expected capacity; power flows and fault levels in the transmission network for next five years.

2 Planning Horizon and Data Input Timeline

The planning horizon of TRANSCO 2009 Statement is 2010-2014 period replacing all earlier

Statements. TRANSCO 2009 Statement is based on ADWEC 2009 Statement of Future Capacity

Requirements. The cutoff date for input data included in this Statement is May 06, 2009. All

information received after this date will be used in the preparation of TRANSCO 2010 Statement.

3 Purpose and Scope of Statement

The Statement enables the Distribution Companies or any other entity seeking the use of the

transmission system, to identify and evaluate the most suitable opportunities available for

connection. Such opportunities shall be guided by the “Statement of Connection Charging

Methodology for the TRANSCO Electricity System” approved by the Bureau on November 26,

2005 to make a reasonable estimate of the charges to which they would be liable for the provision of

such services. The Statement gives a forward view on the proposed expansion of infrastructure and

new connections needed to meet the forecast demand growth.

4 Executive Summary

As per ADWEC 2009 demand forecast and generation capacity expansion plan, the system base case

electricity peak demand forecast (Abu Dhabi +Northern Emirates) is expected to reach about 17,048

MW in 2014. The estimated system demand growth for the period 2009-2014 is 16.4%. The

summary of the electricity demand forecast (area wise and system) forecast for the period 2009-

2014 is shown in Figure 1.

The summary of the system base case electricity demand forecast and generation capacity forecast,

for the period 2009-2014 is shown in Table 1.


630

695

708

720

740

1,400

1,890

1,890

2,828

3,001

3,152

6,624 7,373

4,9035,786

4,1883,502

1,6241,896

2,0692,119

2,2712,358

754

1,589

2,145

2,588

3,141

685

7,912

9,461

11,287

13,739

15,415

17,048

0

2,000

4,000

6,000

8,000

10,000

12,000

14,000

16,000

18,000

20,000

2009 2010 2011 2012 2013 2014

Year

Peak

Dem

and

(MW

)

Abu Dhabi Region Al-Ain Region

Western Region (Garbia Region) "Auxiliary & Desalination Process Loads in AD"

Northern Emirates Incl. Water Pump & Aux. Loads & SEWA Export Transmission Losses

Coincident Total System Peak

Growth Rate (2009-2014)

System (AD+NE) - Incl. Losses = 16.4%, Abu Dhabi Emirate -Excl. Losses = 16.2%

Abu Dhabi = 16%, Al-Ain =7.7%, Western = 35.6%

Table 1. Summary of System Demand Forecast and Generation Capacity for Period 2009-2014.

Description 2009 2010 2011 2012 2013 2014

Total System Peak Demand Forecast (MW) 7,912 9,461 11,287 13,739 15,415 17,048

Identified Generation Capacity (MW) 10,110 12,222 14,252 14,299 13,322 13,372

Required Generation Capacity (MW) 9,781 11,371 13,289 15,869 17,607 19,276

Fig. 1 Summary of Demand Forecast for Yr 2009-2014.

The main conclusions of Transco 2009 Statement are highlighted below; 4.1 Available Generation Capacity for Year 2013-2014

As per revised ADWEC 2009 input data, Umm Al Nar Plant Capacity - UAN (778MW) and Al-Ain

Power Station (256MW) have been rescheduled for retirement until end Year 2012. To satisfy

generation-demand balance and produce a valid network conditions for Year 2013-2014; additional

generation from Shuweihat and Fujairah F3 is assumed in Transco 2009 Statement. It should be

noted that this assumption is speculative at this stage and further analysis is required to validate

these assumptions.


4.2 Transmission Works in Western Region for ADNOC Group

In view of the recent ADNOC intent to take power from ADWEC/Transco to the extent of about

3,000 MW by 2020, major 400kV and 220kV transmission works are envisaged to meet the total

expected peak demand requirements of about 2,500MW (in Yr 2014) for ADNOC group in Western

Region. BAB/BUHASA, SHAH/ASAB and Ruwais are expected to be the major load centers. The

400kV interconnection scheme for BAB (from Year 2012); Ruwais (from Year 2013) and 220kV

interconnection scheme for SHAH (from Year 2013) is indicative only and not yet finalized.

Transco is currently studying the supply scheme arrangements in Western Region to meet the above

demand requirements in view of the generation scenario and assumptions highlighted in Section 4.1.

4.3 Integration of Transco Grid with ENG/GCC Grids

Currently, Transco grid is integrated to the Emirates National Grid (ENG) at Taweela 400kV grid

station and with Oman grid at Al Foah (AOHG) 220kV grid station. Sweihan 400kV grid station is

planned to be the interface node for power exchange from Fujairah (Qidfa) Plant to Abu Dhabi

Emirate after commissioning the 400kV OHL circuit (in Yr 2010) interconnecting Fujairah (Qidfa)

and Sweihan 400kV grid stations. Integration of Transco grid with Northern GCC grid is planned

after summer 2010 at new Sila 400kV grid station to share benefits such as reduced spinning reserve

and facilitate future power exchange among various Utilities in U.A.E and Gulf Region.

4.4 400kV Network Optimization - Post Taweela C Generation

The 400kV network configuration in Taweela area is intent to be optimized. Taweela-C generation is likely to split onto three (3) busbars. New 400/220kV grid station is assumed located within New Taweela-C site. The new 400kV grid station at New Taweela-C shall be interconnected to the

Taweela P.S 400kV busbar by 400kV cables (2 circuits). Taweela P.S 400kV busbars must be operated split to manage the fault levels. The new 400/220kV grid station design shall have 2x500MVA with a provision for future 3rd 500MVA transformer.

Transco proposed a possible optimized network configuration to the Transco Senior Management and agreed that the proposed option should be forwarded to TEPCO for their further studies and

validation in order to finalize the 400kV network configuration, remote end works at Shahama, Shamkha and ADST for project implementation. The proposed option meets the technical requirements, provides operational flexibility and reduces the transmission reinforcement cost. This solution calls for extension of Shahama 400kV by 2 bays which is feasible. The benefits of

reconfiguration of Transco 400kV OHL of this recommended option are: (i) no new OHLs are required from Taweela, (ii) the 400kV switching station at Hameem Junction could be delayed, (iii)


possible reduction in 400kV cable requirements/shunt reactors and (iv) provision of operational flexibility. TEPCO is currently assessing Transco’s proposal.

4.5 400kV Works in Shamkha

ADDC recently indicated in their letter dated 17 December 2008 that the cumulative long-term

power demand forecast in Shamkha area could reach about 900MVA. To provide a firm and secure

power supply for Shamkha area, a 400/132kV (2x500MVA) grid station with a provision for future

3rd 500MVA transformer in Shamkha area is proposed to be established by Year 2012 to meet the

long-term demand requirements in the area. This is in line with the strategy to secure Shamkha as

the future transmission system backbone to form a 400kV ring for evacuating power from Taweela

to Capital District/Mahawi and Abu Dhabi Island. This strategy will be evaluated in detail by

TEPCO in their Phase-3 study work.

To cater for the short-term demand requirements of Shamkha area, a 220/33kV, 80MVA mobile

station is recently energized. 2nd and 3rd 220/33kV, 80MVA mobiles are planned to be

commissioned by Q3 2009 and Q4 2010 respectively to meet ADDC commitments.

4.6 400kV Network Optimization

Bahia-Sadiyat-Reem; Mahawi; Taweela and Neighboring Areas

Due to the pressure from governmental bodies and developers there is restriction for building new

OHLs mandating replacing some existing 400kV OHLs. This may lead to significant increase in the

length of 400kV cables in the coming years. In view of this scenario, Transco is currently assessing

options to optimize the 400kV network configuration and study all the technical challenges arising

from the possible extensive use of EHV cables, which have implications on the 400kV network

configuration of current on-going projects between Bahia-Sadiyat and SASN-Mahawi-Mussafah.

Transco is currently in the middle of an independent review (TEPCO Consultant) developing the Master Plan of Transco Transmission System up to Year 2018 taking into account generation-demand forecast and considering the impact of existing and future projects. The scope include

optimization of whole Transco transmission network configuration particularly Bahia-Sadiyat-Reem network, Mahawi and neighboring areas; and Taweela and neighboring areas. TEPCO final study is expected to be submitted by end of Year 2009. The conclusions of TEPCO final study report shall take into account the above, Post Taweela-C generation scenario (as briefed in Section 4.4) and

400kV scheme in Shamkha (as briefed in Section 4.5);


4.7 Industrial Zones - ICAD and KPIZ

220kV supply capacity for the industrial zones in the Industrial City of Abu Dhabi (ICAD) and

Khalifa Port & Industrial Zone (KPIZ) will be embarked in phased manner as per the adopted

Transco strategy, in view of the uncertainty surrounding the long-term demand requirements of

these developments. The peak demand requirements of ICAD and KPIZ are expected to exceed

800MW and 500MW respectively by Year 2014.

In ICAD, a 220kV grid station will be commissioned before summer 2009 to provide supply to GHC

and Emirates Steel Factories. 400/220kV grid station (3x500MVA) with 220/33kV, 2x(3x100MVA)

grid station capacity will be established by Q4 Yr 2010. 2nd 220/33kV (2x3x100MVA) grid station

and 3rd 220/33kV (3x100MVA) grid station will be established by Q3/Q4 Yr 2011.

In KPIZ, 132kV reinforcement works include addition of 3x100MVA, 132/33kV transformers at

Taweelah-A substation target for completion by Q3 2011 to meet the demand requirements of

Khalifa Port and initial developments of Khalifa Industrial Zone. 400/220kV grid station

(2x500MVA) with 220/33kV, 2x(3x100MVA) grid station capacity; as part of Taweela-C

generation integration works, is planned for completion by Q3 2012 to meet the demand

requirements of KPIZ.

4.8 Transmission Development Works in Bahia and Mahawi

400/132kV, 2x500MVA grid station with a provision for future 3rd 500MVA transformer in Bahia is

expected to commission after summer Yr 2010. The grid station is the main power supply source for

the prestigious mega development projects in Yas Island, Raha Beach, Masdar Green City and New

Airport.

400/132kV, 3x500MVA grid station in Mahawi is expected to commission after summer Yr 2011.

The grid station is the main power supply source for mega development projects in Mussafah,

Mohamed Bin Zayed City, Mahawi, Watbha, Khalifa-A, Old Airport and Capital District.

In view of the uncertainty surrounding the long-term demand requirements of above developments,

Transco has adopted staging of 400/132kV grid station capacity requirements in Bahia and Mahawi.

Three 132kV sub-system zones (Sas Al Nakheel, Bahia and Mahawi zones) are planned to be

implemented in Abu Dhabi Mainland after the establishment of 400kV grid stations in Bahia and

Mahawi.


4.9 Mega Developments in Reem/Sadiyat Islands

The developer forecast data indicate that the long-term peak demand forecast of Reem and Sadiyat

Islands are expected to reach 1200MVA each. However, ADWEC 2009 revised demand forecast

data show that the ultimate demand requirements for Reem Island and Sadiyat Island are only about

645MW and 715MW respectively. 400/132kV grid station (4x500MVA) along with 132/22kV

substations are planned to be commissioned in Reem (in Year 2009) and Sadiyat (in Year 2010) to

meet the short and long term demand requirements of mega projects in these neighboring Islands.

4.10 400kV Works in Shuweihat

ADWEC 2009 revised data indicate that the new generation in Shuweihat S2 (1,630MW) will enter

into full service in Yr 2011. Currently, extension works of the existing 400kV switchgear in

Shuweihat for S2 integration is on-going. The existing design of two double circuit 400kV OHL

from Shuweihat is capable to accommodate export of power from both S1 and S2 generation.

4.11 Masdar Shams Concentrating Solar Plants

Masdar Shams solar generation is planned to be developed in three (3) stages, total 150MW by

2014. The 1st phase of solar generation (50MW) is expected to be operational in 2012. The 220kV

grid station at Madinat Zayed-WR will serve as the interface connection for integration of Masdar

Shams solar generation.

4.12 Relocation of Al Zawra Gas Turbines

ADWEC 2009 data indicates that the relocated gas turbines of Al Zawra are expected to operate in

simple (open) cycle mode with available gross capacity of 400MW at existing Mirfa Power Plant

site by peak Yr 2011.

4.13 400kV Works in Northern Emirates

The electricity demand forecast for Northern Emirates includes firm contracted supply committed

based on long-term contract agreement with Fujairah Energy Company (FEC) & Federal Electricity

& Water Authority (FEWA), and a short-term contract agreement with Sharjah Electricity & Water

Authority (SEWA) for 2009 & 2010. The demand requirements for Northern Emirates is 3,152MW

(includes water pumping & auxiliary loads for Abu Dhabi Emirate) in Yr 2014.

400/132kV, 2x500MVA grid station in Fujairah (Qidfa) is commissioned last year to integrate the

existing F1 generation. 400kV switchgear extension works are currently on-going for integrating the

F1 extension (220MW) & F2 (2,114MW) generation facilities. All these extension works are


scheduled for completion by Yr 2010. The extension works consider 400kV OHL power evacuation

facilities between Fujairah and Sweihan grid stations for export of power to Abu Dhabi Emirate; and

interconnection with ENG network.

New 400/132kV, 3x500MVA grid stations are planned in Ras Al Khaimah (Yr 2009), New Fujairah

(Yr 2012) and Ajman (Yr 2012) and associated 400kV OHL interconnection works to meet the

committed power supply in Northern Emirates.

4.14 Developments in Al-Ain Region

The expected peak demand forecast for Al-Ain Region is 2,358MW (in 2014) representing demand

growth of about 7.7% for the period 2009-2014. Four new 220/33kV substations will be in service

by Yr 2014 namely at Umn Al Oush, Al-Ain Industrial City (AAIC), Al-Mukkam and at Al-Ain

Power Station.

A 220/33kV (3x140MVA capacity) grid station is planned in south of Al-Ain Industrial City

(AAIC) to cater for the phase-1 & phase-2 developments of Arkan Cement factory and labor camps;

and long-term demand requirements of Arkan Industrial Area.

A 220/33kV (3x120MVA capacity) grid station is planned in Al-Mukkam (in Al-Ain region) area to

cater for the new loads in Saih Al Dahai, Al-Mukkam and Al-Yahar housing projects. Particularly,

this grid station is expected to relieve loading on Dahma and Zakher grid stations to some extent.

220/33kV (2x140MVA capacity) grid station is planned in Umm Al Oush to cater for the new loads

in Al Qua’a area, relieve loading on Al-Wagon 220kV grid station and also relieve severe 33kV

voltage drop problems in the area.

220/33kV (3x120MVA capacity) grid station is planned in Al-Ain Power Station (AAPS) to meet

the demand requirements of the new developments near AAPS, provide flexibility and future

additional capacity considering the medium/long-term strategy of stage-wise replacement of existing

AAPS assets after retirement of the AAPS generation in Year 2012. Also, the 220kV OHL within

Al-Ain city limits will be converted to 220kV cables interconnecting Dahma, AAPS, City Centre

and Zakher substations.

4.15 Dismantle 220kV OHL between Al Ain and Shahama 220kV Network

After commissioning the proposed new 400/132kV grid stations in Mahawi and Shamkha, Transco

plan to dismantle the redundant 220kV OHLs between Shahama, Wathba, and Khazna. The existing

220kV OHL between Ramah and Watbha shall be diverted to Khazna to establish Ramah-Khazna

220kV circuit.


4.16 Security of Supply and 132kV Supply Arrangement in Abu Dhabi Island

Abu Dhabi Island is currently operating with N-2 security of supply for 400kV OHL circuit. The

132kV transmission system in Abu Dhabi Island shall be operated as three (3) sub-system zones

(E19, E48 & ADST Zones) to ensure the 132kV fault levels are within the switchgear rating,

maintain power flow balance and provide operational flexibility.

4.17 132kV Network Interconnection between Abu Dhabi Island, Reem and SASN

Recently, Transco completed an assessment of 132kV network interconnection scheme between

Abu Dhabi Island and Reem Island/Sas Al Nakheel. This strategy plan is proposed to provide

additional sources of power supply to Abu Dhabi Island, which will alleviate the expected capacity

shortfall in the medium term (beyond Year 2013/2014). The 400/132kV grid stations at Reem Island

and Sas Al Nakheel are identified as the candidates for providing the additional capacity to Abu

Dhabi Island. The objective is to fully utilize the available capacity of 400/132kV grid station in

Reem Island and Sas Al Nakheel leading to significant improvement in the effectiveness and

efficiency of assets. The proposed scheme is planned to be in service by Yr 2013.

5 Demand Forecast and Generation Capacity Expansion Plan

The Article 30, Sector Law No. 2 of 1998 requires ADWEC to prepare electricity demand forecast

and accordingly secure future generation capacity requirements to meet the forecast demand. Users

are advised to refer ADWEC for full technical details pertaining to demand forecast and generation

capacity expansion plans (e.g. demand forecast technique, forecast scenarios, input data and key

assumptions, generation retirement plans and new planned capacity etc).

5.1 Demand Forecast

Transco 2009 Statement is based on the ADWEC base case peak demand forecast (most probable

forecast scenario) for the Abu Dhabi Emirate. The sum of area wise base electricity peak demand

forecast (@ Transco system peak) include peak demand forecast of Abu Dhabi Emirate, Northern

Emirates, supply to auxiliary and desalination process loads and estimated transmission losses.

The system base case electricity peak demand forecast (Abu Dhabi+Northern Emirates) is expected

about 17,048 MW in Yr 2014. The system demand growth for the period 2009-2014 is 16.4%.

The base case peak electricity system demand forecast for Abu Dhabi Emirate, excluding

transmission losses, is expected about 13,612MW in Yr 2014. The demand growth of Abu Dhabi


S.N Description/Region 2009 2010 2011 2012 2013 2014

1 Abu Dhabi Islands' & Mainland 3,502 4,188 4,903 5,786 6,624 7,373

2 Al-Ain Region 1,624 1,896 2,069 2,119 2,271 2,358

3 Western Region 685 754 1,589 2,145 2,588 3,141

4 Auxiliary & Desalination Process Loads 625 630 695 708 720 740

6,436 7,468 9,256 10,758 12,203 13,612

1 SEWA 350 350

2 Water Pumping & Aux Loads 130 290 290 312 350 356

3 Northern Emirates 920 1250 1600 2516 2651 2796

1,400 1,890 1,890 2,828 3,001 3,152

76 103 141 153 211 284

7,912 9,461 11,287 13,739 15,415 17,048

C) Estimated Transmission Losses (MW)

Grand Total (MW)

Sub-Total-1 (MW)

Sub-Total-2 (MW)

A) Abu Dhabi Emirate

B) Northern Emirates

Emirate for the period 2009-2014 is 16.2%. The demand requirements of the Mega Projects have

significant influence on the load forecast model. .

The electricity demand forecast for Northern Emirates include firm contracted supply committed

based on long-term contract agreement with Fujairah Energy Company (FEC) & Federal Electricity

& Water Authority (FEWA), and a short-term contract agreement with SEWA. The peak electricity

system demand forecast for Northern Emirates, excluding transmission losses, is about 3,152MW in

Yr 2014.

Table 2 shows the summary of the base case peak electricity demand forecast (@ Transco system

peak) for the Abu Dhabi Emirate and Northern Emirates for the period 2009-2014. The system

demand forecast shown in Table 2 is further disaggregated among the existing and proposed

substations at various demand supply interface points with Disco’s in Abu Dhabi Emirate based on

the electrical connectivity and geographical dispersion. The grid stations/substation capacity and

their forecast demand categorized area wise is shown in Attachment-1. Reasonable effort is made in

disaggregating the load at various demand supply points based on the inputs from ADDC/AADC

(2008/2009 updated demand forecast data at the supply points) in order to align the summation of

the said area wise demand forecast data consistent with the ADWEC’s global demand forecast data.

It should be noted that the ADWEC’s global demand forecast data considers UPC population

adjustment factor. Hence, Transco significantly scaled down Discos’ demand forecast compared to

their original submissions. The demand data at various demand supply points include distribution

losses.

Table 2 Sum of Area Wise Base Case Peak Demand Forecast (MW) @ Transco System Peak.


5.1.1 Abu Dhabi Islands’ and Mainland

The base case peak electricity system demand forecast for Abu Dhabi Islands’ and Mainland, excluding transmission losses & auxiliary loads, is expected about 7,373MW in Yr 2014. The demand growth of Abu Dhabi Region for the period 2009-2014 is 16%. The summary of major developments in Abu Dhabi Region for the period 2009-2014 is mentioned below;

ADST Zone

The summary of demand forecast at 132kV demand supply points in ADST Zone is shown in Table-2 Attachment-1. The expected total demand forecast of ADST Zone is about 832MW 1 in Year 2014. ADST 400/132kV grid station will then be loaded about 91% of firm capacity in Year 2014.

All the generating units in Abu Dhabi Power Station (ADPS) are shut down, all process and systems are isolated. The remaining 33kV loads from ADPS-old 132kV switchgear are expected to be transferred to ADST 132kV switchgear before summer 2009.

In ADST Zone, three (3) new 132/11kV substations and one (1) replacement of old 132/11kV

substation (W02) are planned within next five years. They are in E03 Sector, E12 Sector, E01 Sector

and W02 Sector.

New 132/11kV substation in E03 Sector is to relieve the loading on the existing E04 132/11kV

substation (MDZD), to meet the demand requirements of new projects in the vicinity of E03 Sector

and to transfer the loads of existing E4-1 (33/11kV) PRY S.S as per ADDC plan to phase out all

33/11kV substations.

New 132/11kV substation in E12 Sector (near Corniche Hospital/Saraya development) is to provide

power supply to the new developments in East of Abu Dhabi Island (i.e. Saraya development, Khor

Abu Dhabi-Abu Dhabi Tourist Club Redevelopment & others) and transfer the loads of the existing

CHP (33/11kV) PRY S.S located near Corniche Hospital as per ADDC plan to phase out all

33/11kV substations.

__________________ 1 demand forecast zonal estimate refer prior to the implementation of 132kV Network

Interconnection Scheme between Abu Dhabi Island and Reem Island/Sas Al Nakheel.


New 132/11kV substation in E01 Sector is to provide power supply to new Market development in

E01/E02 Sector and to meet part of the loads of existing Market-MRKT (W02) 132/11kV substation

during the period of replacement of existing W02 132/11kV substation. The existing W02 132/11kV

substation is the oldest substation in Abu Dhabi Island established in 1976 and exceeds its life cycle.

Replacement of this existing old 132/11kV substation in Market-MRKT (W02) is required to ensure

secure power supply to the area and importance of the prime location.

Al-Qurm (E19) Zone

The summary of demand forecast at 132kV demand supply points in E19 Zone is shown in Table-2

Attachment-1. The expected total demand forecast of E19 Zone is about 826MW1 in Year 2014.

E19 400/132kV grid station will then be loaded about 91% of firm capacity in Year 2014.

In E19 Zone, three (3) new 132/11kV substations are planned within next five years. They are in

Green Head (W41 Sector), Al Mashtal (W04) Sector and Ras Al Akdar (Presidential Palace).

New 132/11kV substation in W41 Sector is to provide power supply to the new developments in

green head area (e.g. Ethihad Towers, Khaldiya Palace Hotel, Coconut Island development, Tabreed

Plant in W38 Sector etc).

New dedicated 132/11kV substation will be established in Al Mashtal (W04) Sector to provide

power supply to Al Mashtal and neighboring developments.

New dedicated 132/11kV substation will be established in Ras Al Akdar area to provide power

supply to the New Presidential Palace. The expected ultimate demand requirement is about 50MW.

This 132/11kV substation is dedicated to feed Presidential Palace as per ADDC request letter dated

14 December 2008 and per instructions received from The Ministry of Presidential Affairs letter

dated 12th January 2009.

Beach (E48) Zone

The summary of demand forecast at 132kV demand supply points in E48 Zone is shown in Table-2

Attachment-1. The expected total demand forecast of E48 Zone is about 855MW1 in Year 2014.

E48 400/132kV grid station will then be loaded about 94% of firm capacity in Year 2014.


In E48 Zone, four (4) new 132/11kV substations are planned within next five years. They are in

Danet (E40) Sector, Zayed Sports City (W57), ADNEC and W24/02 Sector.

New 132/11kV substation will be established in Danet (E40) Sector to meet Danet Abu Dhabi

demand, development within the vicinity and district cooling plant load.

New 132/11kV substation will be established in Zayed Sports City (W57) Sector to meet new

development requirements in W69, W68, W65, W56 and W51.

New 132/11kV substation will be established in ADNEC to meet demand requirements for all

phases of ADNEC development and neighboring areas.

New 132/11kV substation will be established in W24/02 Sector to meet demand requirements in

E25 (HTCO, W24(MSRF), E19(QURM) sectors and their vicinity. The proposed new 132/11kV

substation will alleviate the loading on existing 132/11kV substations at E25 and W24; and ensure

availability of firm supply in the above sectors.

Reem Zone

The summary of demand forecast at 132kV demand supply points in Reem Zone is shown in

Table-2 Attachment-1. 400/132kV grid station in Reem Island with firm capacity 1500MVA is

expected to commission before summer 2009. The expected total demand forecast of Reem Zone

(includes Suwa Island demand) is about 319MW 1 i.e. 350MVA in Year 2014, which is loaded less

than 30% of the Reem 400/132kV grid station firm capacity.

Five (5) 132/22kV substations in Reem Island and one (1) 132/22kV substation in Suwa Island are

planned within next five years. One (1) 132/22kV substation (S1) in Reem Island will be

commissioned by Q3 2009. Three (3) 132/22kV substations (R1, T1, T2) in Reem Island will be

commissioned by Q4 2009 after summer peak. One (1) 132/22kV substation (S2) in Reem Island

and one (1) 132/22kV substation in Suwa Island will be commissioned by Q4 2011.

There will be minimum or no load on 132/22kV substation in T1 Reem Island in Year 2010. There

will be minimum or no load on 132/22kV substations in R1/T2 Reem Island in Year 2010 & 2011.

In general, the loading on 132/22kV substations in Reem Island will reach about 20% of their firm

capacity by Year 2014.

The initial loads (about 20MW) in Suwa Island mainly to cater for the loads of Abu Dhabi Financial

Centre and Cleveland Clinic will be fed from E16/02 (CLNS) 132/11kV substation in Abu Dhabi

Island until Q4 Year 2011.


Sas Al Nakheel (SASN) Zone

The summary of demand forecast at 132kV demand supply points in SASN Zone is shown in

Table-2 Attachment-1. The expected total demand forecast of SASN Zone is about 527MW1 i.e.

579MVA in Year 2014, which is loaded about 116% of SASN 400/132kV grid station firm capacity.

New 132/11kV substation will be established in Rawdat Abu Dhabi to meet the phase-1 & phase-2

demand requirements of Rawdat Abu Dhabi and neighboring area developments.

Sadiyat Zone

The summary of demand forecast at 132kV demand supply points in Sadiyat Zone is shown in

Table-2 Attachment-1. 400/132kV grid station in Sadiyat Island with firm capacity 1500MVA is

expected to commission before summer 2009. The expected total demand forecast of Sadiyat Zone

is about 212MW i.e. 233MVA in Year 2014, which is loaded about 15% of the Sadiyat 400/132kV

grid station firm capacity.

Four (4) 132/22kV substations in Sadiyat Island are planned within next five years. Three (3)

132/22kV substations (SS1, SS4 & SS6) will be commissioned after Q3 2009. One (1) 132/22kV

substations (SS5) will be commissioned by Q4 2009 after summer peak.

There may be minimum or no load on 132/22kV substations in Year 2010.

On May 5th 2009 Transco discussed the demand and their phasing requirements for Sadiyat Island

with TDIC/ADDC. In the meeting, TDIC emphasized the ultimate demand for Sadiyat Island

remains same as communicated before (~1200MVA). TDIC also confirmed that their strategy

remains unchanged in terms of laying the complete infrastructure upfront in order to provide fully

serviced plots for future investors.

Mahawi Zone

400/132kV grid station (3x500MVA) in Mahawi is expected to commission after summer Yr 2011.

The grid station is the main power supply source for mega development projects in Mussafah,

Mohamed Bin Zayed City, Mahawi, Watbha, Khalifa-A, Old Airport and Capital District. The total

peak demand forecast of Mahawi 400/132kV grid station is 651MW1 i.e. 715MVA in Yr 2014

(expected loading about 71% of grid station firm capacity).


The ultimate demand requirements of developments within the vicinity of Mahawi area (existing

Mahawi & Watbha loads, certain sectors of Mohamed Bin Zayed City, phase-1 development of

capital districts, baniyas development, Al Faya camps, waste water treatment plant, TDIC staff

accommodation etc) may exceed 1100MVA as per ADDC letter dated 17 December 2008. In view

of the UPC Master Plan for Capital District/Mohamed Bin Zayed City as one of the major strategic

initiatives of the “Plan Abu Dhabi 2030”, there is a potential for the establishment of 2nd 400/132kV

Grid Station in Mahawi/Capital District in the medium term beyond Year 2014.

Bahia Zone

400/132kV grid station (2x500MVA) with provision for 3rd 500MVA transformer in Bahia is

expected to commission after summer Yr 2010. The grid station is the main power supply source for

the prestigious mega development projects in Yas Island, Raha Beach, Masdar Green City and New

Airport, whose total peak demand forecast to 386MW i.e. 424MVA in Yr 2014 (expected loading

about 85% of grid station firm capacity).

2nd new 132/22kV substation is planned to be established in Yas Island by Year 2012. Two new

132/22kV substations are planned for Raha Beach development within next 5 years. New 132/22kV

substation is planned for Airport development in Year 2011.

New 132/22kV substation is planned for Masdar Green City development in Year 2011. The

establishment of 132kV substation (4x80MVA) is based on the ADDC request letter dated 09

September 2008. Recently, Masdar estimated that 30-40MVA power is initially required for Masdar

Green City by June 2010. After discussions with Masdar, Transco proposed to shift the 132/11kV

mobile substation from Yas Island to Masdar Green City to meet Masdar imminent requirements

(Masdar confirmed they will bear all the costs associated with this interim arrangement). Transco

considered only minimum load on the permanent 132kV substation as reserve and not demand

related per discussions with ADWEC (for the peak period).

132kV Interconnection Strategy Scheme between Abu Dhabi Island, Reem and SASN

Recently, Transco completed an assessment of 132kV Network Interconnection Scheme between

Abu Dhabi Island and Reem Island/Sas Al Nakheel. This strategy plan is proposed to provide

additional sources of power supply to Abu Dhabi Island to alleviate the expected capacity shortfall

in the medium term (beyond Year 2014). The 400/132kV grid stations at Reem Island and Sas Al

Nakheel are identified as the candidates for providing the additional capacity to Abu Dhabi Island.

The objective is to fully utilize the available spare capacity of 400/132kV grid station in Reem


Island and Sas Al Nakheel leading to significant improvement in the effectiveness and efficiency of

assets. The proposed scheme is planned to be in service by Yr 2013.

Shamkha Zone

ADDC recently indicated in their letter dated 17 December 2008 that the cumulative long-term

power demand forecast in Shamkha area could reach about 900MVA. To provide a firm and secure

power supply for Shamkha area, a 400/132kV, 2x500MVA grid station with provision for 3rd

500MVA transformer in Shamkha area is proposed to be established by Year 2012 to meet the long-

term demand requirements in the area. This is in line with the Higher Management strategy to secure

Shamkha as the future transmission system backbone to form a 400kV ring for evacuating power

from Taweela to Capital District/Mahawi and Abu Dhabi Island. This strategy will be evaluated in

detail by TEPCO in their Phase-3 study work.

To cater for the short-term demand requirements of Shamkha area, a 220/33kV, 80MVA mobile

station is recently energized. 2nd and 3rd 220/33kV, 80MVA mobiles are planned to be

commissioned by Q3 2009 and Q4 2010 respectively to meet ADDC commitments.

Ghantoot and Al Ghadeer (Seih Al Sedaira) Developments

220/33kV, 3x140MVA grid station is planned by Q4 2010 to meet the demand requirements of

Ghantoot Green City phase-1 developments. Recently, Transco received feedback from Al Ghadeer developer that their demand forecast has

been revised, which is likely to be only about 25MVA. Therefore, Transco will not proceed with the

construction of 220/33kV grid station in Al Ghadeer area. This load will be supplied from Ghantoot

220/33kV grid station and the same will be reflected in Year 2010 Statement (2011-2015).

The summary of demand forecast at 132kV and 220kV demand supply points in Abu Dhabi Island

and Mainland is shown in Table-2 Attachment-1.

ICAD and KPIZ Industrial Zones

220kV supply capacity for the industrial zones in the Industrial City of Abu Dhabi (ICAD) and

Khalifa Port & Industrial Zone (KPIZ) will be embarked in phased manner as per the adopted

TRANSCO strategy, in view of the uncertainty surrounding the long-term demand requirements of

these developments. The peak demand requirements of ICAD and KPIZ are expected to exceed

800MW and 500MW respectively by Year 2014. The ultimate peak demand requirements for ICAD

and KPIZ are about 3,300MW and 2,500MW in Year 2030 per revised ADWEC 2009 demand

forecast.


In ICAD, a 220kV grid station will be commissioned before summer 2009 to provide supply to GHC

and Emirates Steel Factories. 400/220kV grid station (3x500MVA) with 220/33kV, 2x(3x100MVA)

grid station capacity will be established by Q4 Yr 2010. 2nd 220/33kV (2x3x100MVA) grid station

and 3rd 220/33kV (3x100MVA) grid station will be established by Q3/Q4 Yr 2011.

The ICAD steel factory (GHC & Emirates Steel-phase1 & phase2) loads are supplied by a dedicated

220kV grid station connected via three (3) 220kV circuits (from Mussafah, UAN and GIC 220kV

bus bars), which is planned for commission after summer 2008. The incoming 220kV cable circuit

to the above 220kV grid station is 1,200 sq.mm XLPE rated 315MVA per circuit.

The 220/33kV grid station capacity and configuration in ICAD is based on extensive study

undertaken by Transco and optimized for supplying industrial loads taking into account induction

motor fault contribution (as per the good utility practice) and ensuring parallel operation of

220/33kV, 3x100MVA transformers with a solid 33kV busbar.

A review of the design of grid station and substation configuration (including transformer sizing and

impedances) by M/s Siemens and M/s EDF has recently been completed. Transco/ADDC need to

agree on the way forward in the future design of the demand supply points and a consensus may be

reached before the end of Year 2009 in order to meet the international best practice taking into

account related technical, cost and risk factors. The conclusions will be appraised in the Transco

2010 Statement.

In KPIZ, 132kV reinforcement works include addition of 3x100MVA, 132/33kV transformers at

Taweelah-A substation target for completion by Q3 2011 to meet the demand requirements of

Khalifa Port and initial developments of Khalifa Industrial Zone. 400/220kV grid station

(2x500MVA) with 220/33kV, 2x(3x100MVA) grid station capacity; as part of Taweela-C

generation integration works, is planned for completion by Q3 2012 to meet the demand

requirements of KPIZ. Additional 220kV grid stations may be established once the demand

requirements of Abu Dhabi Ports Company (ADPC) tenants’ are confirmed.

5.1.2 Al-Ain Region

The base case peak electricity system demand forecast for Al-Ain Region, excluding transmission

losses, is expected about 2,358MW in Yr 2014. The demand growth of Al-Ain Region for the

period 2009-2014 is 7.7%.

Four new 220/33kV substations will be in service by Yr 2014 namely at Umn Al Oush, Al-Ain

Industrial City (AAIC), Al-Mukkam and at Al-Ain Power Station.


220/33kV (3x140MVA capacity) grid station is planned in south of Al-Ain Industrial City (AAIC)

to cater for the phase-1 & phase-2 developments of Arkan Cement factory and labor camps; and

long-term demand requirements of Arkan Industrial Area.

220/33kV (3x120MVA capacity) grid station is planned in Al-Mukkam (in Al-Ain region) area to

cater for the new loads in Saih Al Dahai, Al-Mukkam and Al-Yahar housing projects. Particularly,

this grid station is expected to relieve loading on Dahma and Zakher grid stations to some extent.

220/33kV (2x140MVA capacity) grid station is planned in Umm Al Oush to cater for the new loads

in Al Qua’a area, relieve loading on Al-Wagon 220kV grid station and also relieve severe 33kV

voltage drop problems in the area.




AAPS assets after retirement of the AAPS generation in Year 2012.

Also, the 220kV OHL within Al-Ain city limits will be converted to 220kV cables interconnecting

Dahma, AAPS, City Centre and Zakher substations.

Recently, Transco received an urgent request from AADC (per AADC letter dated 26 March 2009)

for establishing new 220/33kV grid station in Ain Al Fyda to provide power supply to important

developments like Wild Life Park, H.E Sheikh Saif Bin Zayed Palace and residential communities in

Shab Al Ashker. Transco is currently assessing AADC requirements. The summary of demand forecast at 220kV demand supply points in Al-Ain Region is shown in

Table-3, Attachment-1.

5.1.3 Western Region

The base case peak electricity system demand forecast for Western Region, excluding transmission

losses & auxiliary loads, is expected about 3,141MW in Yr 2014. The demand growth of Western

Region for the period 2009-2014 is 35.6%. The demand requirements for ADNOC Group (i.e. about

2,500MW in Year 2014) will have significant influence on the demand forecast of Western Region.

In a recent letter from ADNOC dated 18 March 2009, they decided to take power from

ADWEC/Transco to the extent of about 3,000 MW by 2020. In view of this, major 400kV and

220kV transmission works are envisaged to meet the total expected peak demand requirements of

about 2,500MW (in Yr 2014) for ADNOC group in Western Region. BAB/BUHASA;

SHAH/ASAB and Ruwais are expected to be the major load centers.


The 400kV interconnection scheme for BAB (from Year 2012), Ruwais (from Year 2013) and

220kV interconnection scheme for SHAH (from Year 2013) is indicative only at this stage and not

yet finalized. Transco is currently studying the supply scheme arrangements in Western Region to

meet the above demand requirements in view of the generation scenario and assumptions

highlighted in Section 4.1.

Two (2) 220kV GIS bays will be extended at existing 220kV switchgear in BAB grid station to

connect ADCO’s new 220/33kV transformers (2x150MVA) for their proposed BAB Gas

Compression project in Yr 2011.

A 220/33kV, 80MVA mobile station is planned to be established by Q1 2011 in Hameem-WR to

cater for Qasr Al Sarab Hameem resort development by Tourism Development & Investment

Company (TDIC) and alleviate the 33kV voltage drop problems in the ADDC area. The supply

source for the 80MVA mobile station will be tapped off from the proposed 220kV OHL between

ASAB and Qusahwira.

220/33kV (2x80MVA) planned by Q3 2011 in Qusahwira is to provide power supply source for

ADCO’s 1.8MMBD compressor project and to cater for ADDC loads to feed Presidential Palace in

Umm Al Zumool.

The Gasco Elixier-II (NGI) project will be built near Mirfa Power Station. The power supply to the

Elixier-II plant will be met by loop in & out the two (2) 220kV OHL circuits between Ruwais-Mirfa

into their proposed 220kV grid station. The 220kV scheme is planned to be completed after summer

2010. The battery limit for Transco is up to the Gantry of the Elixier-II 220kV grid station.

132/11kV (2x40MVA) substation in Delma Island will be commissioned by summer 2009.

132/11kV (3x40MVA) substation in Sir Baniyas Island will be commissioned by Q3 2011 to meet

the demand requirements of the Island. Additional 3rd 220/33kV, 80MVA transformer is planned in

Sila 220kV grid station by Q3 2012 to cater for the phase-1 & phase-2 developments of Sila City.

The summary of demand forecast at 220kV and 132kV demand supply points in Western Region is

shown in Table 4, Attachment-1.

5.1.4 Northern Emirates As per the Master Agreement with FEWA/FEC, Transco on behalf of ADWEA committed to

expand the transmission system in Northern Emirates to meet its global demand requirements

(~3,152MW in Year 2014), by construction of three (3) new 400/132kV, 3x500MVA grid stations

(Ras Al Khaimah, New Fujairah and Ajman) and expansion of existing 400/220kV grid station


capacity in Dhaid; construction of 400kV OHL ring along the Northern Emirates and reinforcement

of FEWA’s existing 132kV network as necessary to connect to Transco’s 400/132kV grid stations.

Summary of Northern Emirates committed global demand forecast disaggregated (within reasonable

estimate) among 400kV grid stations in Northern Emirates is shown in Table 5 Attachment-1.

New 400kV and 132kV network facilities established by Transco in Northern Emirates shall be

owned, operated and maintained by Transco, while the existing 132kV network facilities and all

distribution facilities in Northern Emirates shall be owned, operated and maintained by FEWA.

5.2 Generation Capacity Expansion Plan

The generation expansion planning criteria is based on loss of load expectation (LOLE) of 1 day in

10 years, and has been calculated using generation forced outage rates of 5% for NON-IWPP

stations and the PWPA specified forced outage rates for IWPPs (typically 3%-3.5%).

As per ADWEC 2009 revised data, the identified gross generation capacity in Year 2014 is

13,372MW. With this premise, the summary of the system base case electricity demand forecast and

generation capacity forecast for the period 2009-2014 is shown in Table 3.

Table 3. Summary of System Demand Forecast and Generation Capacity for Period 2009-2014.

Description 2009 2010 2011 2012 2013 2014 Total System Peak Demand Forecast (MW)

7,912 9,461 11,287 13,739 15,415 17,048

Identified Generation Capacity (MW) 10,110 12,222 14,252 14,299 13,322 13,372

Required Generation Capacity (MW) 9,781 11,371 13,289 15,869 17,607 19,276

To satisfy generation-demand balance and produce a valid network conditions for Year 2013-2014;

additional generation from Shuweihat and Fujairah F3 is assumed in Transco 2009 Statement. It

should be noted that this assumption is speculative at this stage and further analysis is required to

validate these assumptions. The detailed summary of the existing, under construction, committed

and planned generation capacity up to Yr 2014 is shown in Attachment-1 incorporating the

assumptions mentioned above.

5.2.1 Comments on Capacity Lifetime Extensions

As per ADWEC 2009 input data, Umm Al Nar plant capacity (778MW) and Al-Ain Power Station

capacity (256MW) have been rescheduled for retirement until end 2012.


The 132kV fault levels at Umm Al Nar (UAN), Sas Al Nakheel (SASN), Salt & Chlorine (SLTC),

Rawdat and Khalifa Park (KHPK) exceed their switchgear ratings placing restriction on the

utilization of available full generation capacity of both UAN and SASN plant at the same time.

Therefore, it may be required to open one 400/132kV, 500MVA transformer at SASN and keep out

of service one of the machines connected to UAN 132kV bus until retirement of UAN plant.

6 Planning Principles

The Electricity Transmission System Security Standard, Issue 1, Rev (0) dated March 2005 sets out

the criteria and methodology, which TRANSCO shall use in the planning, development, operation

and maintenance.

The Electricity Transmission Code contains additional criteria and other aspects of quality of supply

and therefore shall be read in conjunction with the Security Standards. The Code is subject to regular

reviews by the Code Review Panel including the Bureau. The last update of Electricity Transmission

Code (ver. 1, rev. 3) was issued in September 2006.

A brief summary of the planning principles adopted in the Electricity Transmission System are

categorized below and discussed further;

• General Criteria.

• Connection Conditions.

• Generation Connection Criteria.

• Main Interconnected Transmission System (MITS) Criteria.

• Demand Connection Criteria.

6.1 General Criteria The following general criteria are adopted for network planning and development;

a) Electricity transmission system shall be planned to comply with N-1 criteria.

b) 400kV OHL system feeding Abu Dhabi Island shall comply with N-2.

c) Electrical and thermal ratings of the equipment shall NOT be exceeded.

d) Power system shall remain stable with respect to voltage and frequency control under normal

and secured outage conditions.

e) Power system shall be developed in an efficient and economical manner.

f) Acceptable safety standards shall be maintained.


6.2 Connection Conditions

Transco and Users connected to the Transmission System (GENCOs, DISCOs and Non-Embedded

Customers) have obligations to plan and operate their networks so that minimum performance

criteria are met. The connection conditions related to frequency deviation, voltage variation,

harmonic distortion, phase unbalance, voltage fluctuations; demand power factor shall be considered

as specified in the Electricity Transmission Code. The design of generation connections, main

interconnected transmission topology and demand connections shall satisfy the deterministic criteria

specified in the Security Standard.

Frequency Deviation

The System Frequency of the Transmission System shall be nominal 50Hz with System Frequency

set points between 49.95Hz - 50.05Hz and shall be controlled within the limits of 49.9Hz - 50.1Hz

unless exceptional circumstances prevail.

Under transient disturbed conditions, System Frequency could rise to 53Hz or fall to 47Hz.

However, under disturbed steady-state conditions, System Frequency will NOT exceed 51.5Hz or

fall below 48.5Hz.

Voltage Variation

The voltage on the 400kV, 220kV and 132kV parts of the Transmission System at each Connection

Site with the User will normally remain within ± 5% of the nominal value. The minimum voltage is

-10% and the maximum voltage are +10%, but voltages between +5% and +10% will NOT last

longer than 15 minutes unless abnormal conditions prevail.

The voltage on the 33kV and 11kV parts of the Distribution System will normally remain within ±

6% of the nominal value unless abnormal conditions prevail.

Harmonic Distortion

The Compatibility/Planning Levels for harmonic distortion on the Transmission System from all

sources under both Planned Outage and fault outage conditions (unless abnormal conditions prevail)

shall comply with the levels shown in Appendix-F of the Electricity Transmission Code, Version 1,

Rev.3, Sep’ 2006.

Transco apply the Planning Levels to the connection of non-linear loads to the Transmission System,

which may result in harmonic emission limits being specified in the relevant Connection Agreement.


The Total Harmonic Distortion (THD) for Planning and Compatibility Levels shall NOT exceed the

limits shown in the Table 4 below.

Table 4. Planning Levels for Total Harmonic Distortion.

Total Harmonic Distortion (THD) S.N Description

132kV 220kV & 400kV

1 Planning Levels for Harmonic Voltage 3% 3%

2 Harmonic Voltage Compatibility Levels 5% 3.5%

Phase Unbalance

Under Planned Outage conditions, the maximum negative phase sequence component of the phase

voltage on the Transmission System should remain below 1% unless abnormal conditions prevail.

Voltage Fluctuations

Voltage fluctuations at a Point of Common Coupling (PCC) with a fluctuating Load directly

connected to the Transmission System shall NOT exceed;

• 1% of the voltage level for step changes which may occur repetitively. Any large voltage

excursions other than step changes may be allowed up to 3% provided this does NOT constitute

a risk to the Transmission System or in Transco’s view to the System of any User.

• Flicker Severity (Short Term) of 0.8 Unit and a Flicker Severity (Long Term) of 0.6 Unit, as set

out in IEC 61000-3-7 Standard.

Demand Power Factor

Demand power factor shall NOT be less than 0.91 lag at 33kV and 11kV connection points between

TRANSCO and Distribution Companies.

6.3 Generation Connection Criteria

The generation connections shall satisfy deterministic criteria comprising of the following;

a) Criteria which determine the maximum Normal and Infrequent Infeed Loss Risk for a set of

“Secured Events”.

For network design and planning purposes the level of these limits are 400MW and 800MW

respectively. These limits are currently being reviewed and expected to be increase to 800MW and

1,200MW respectively, to reflect changes in the power network e.g. interconnection with ENG and


GCC. The Normal Infeed Loss Risk limit aims to ensure that the system frequency does NOT

deviate by more than 0.5Hz for “Secured Events” such as bus bar fault outage or single generation

circuit outage. However, the “Infrequent Loss of Power Infeed” risk aims to avoid deviation of

system frequency outside the range 49.5Hz to 50.5Hz for more than 60 seconds.

b) Criteria which determine “Transmission Capacity” required avoiding un-acceptable network

conditions for a set of “Secured Events”.

In either case, prior to any fault or Secured Events, the “Transmission Capacity” for the connection

to the Power Station should be planned such that the following conditions shall NOT prevail;

• Loss of Supply Capacity (valid only for the Secured Event of fault outage except as permitted by

the Demand Connection Criteria).

• Primary equipment loading exceeding normal rating.

• Voltage outside the pre-fault planning voltage limits or insufficient voltage performance

margins; or

• System instability.

Secured Events could be a fault outage of a single transmission circuit or reactive element, outage of

bus bar section or outage of a single transmission circuit with planned outage of another

transmission circuit, a Generating Unit or reactive element.

6.4 Main Interconnected Transmission System (MITS) Criteria

The Minimum Transmission Capacity requirements for the Main Interconnected Transmission

System (MITS) shall satisfy deterministic criteria and shall be planned such that prior to any fault or

Secured Events, the following conditions shall NOT prevail;

• Loss of Supply Capacity (valid only for Secured Event of fault outage except as permitted by the

Demand Connection Criteria).

• Primary equipment loading exceeding normal rating.

• Voltage outside the pre-fault planning voltage limits or insufficient voltage performance

margins; or

• System instability.

Secured Events could be a fault outage of a single transmission circuit or reactive element, outage of

bus bar section or outage of double circuit 400kV overhead line feeding Abu Dhabi Island, or outage


of any single transmission circuit with planned outage of another transmission circuit, a Generating

Unit or reactive element.

6.5 Demand Connection Criteria

The planning of demand connections (132/11 kV substations or 220/33 kV substations) to the

Transmission System shall satisfy deterministic criteria and there should be NO loss of supply

capacity for the Group Demand following Secured Events as illustrated in Table 5.

Table 5. Planning Supply Capacity Following Secured Events.

Initial System Conditions Group Demand

(MW) Intact System With Single Arranged Outage

Over 150MW Immediately [1]

Group Demand

Immediately [1]

Maintenance Period Demand

27MW-150MW Immediately [1]

Group Demand

5 minutes [2]

Maintenance Period Demand

Up to 27MW Subject to DISCOs system security criteria

Subject to DISCOs system security criteria

Notes:

[1] A loss of supply not exceeding 5 minutes may be acceptable if this leads to significant

economies.

[2] For sites where economies prohibit the provision of a third Transmission Circuit, the

Maintenance Group Demand may be lost for the necessary time to restore outage.

Secured Events could be a fault outage of a single transmission circuit under Intact System; or

outage of a single transmission circuit with planned outage of another transmission circuit, a

Generating Unit or reactive element.

Maintenance Period is the period of the Year (November to April) during which maintenance of

transmission equipment is normally undertaken. Maintenance Period Demand is the demand level

experienced at a Demand Supply Point and is the maximum demand level expected during the

normal maintenance period. Unless better data are available, this should be 50% of the Group

Demand.


7 Electricity Transmission System Expansion Plans and System Performance

The electricity transmission system plans are expected to meet the system peak demand forecast for

the planning horizon and comply with planning and security criteria. These plans should be

consistent with the long-term growth plans for the area and aligned with generation capacity

expansion plans.

The 400kV, 200kV & 132kV network topology for the planning horizon (2009-2014) are attached

herewith. The network topology and various interconnections takes into account the implementation

time scales of the current on-going projects, projects in the tendering stage and the planned projects

for the planning horizon.

The system performance of the proposed expansion plans are evaluated using PSS/E software

showing the expected power flows, fault levels and loading on each part of the transmission system

for the next 5 years. The load flow and short-circuit calculations for the system topology for the

planning horizon (2009-2014) for peak and off peak load conditions are evaluated for normal and

contingency scenario. The summary of successful load flow and short-circuit calculations are

attached in Annexure-A & -B of Volume 2. The actual generation schedule of each production plant

used for peak load flow condition in PSS/E is summarized in Table 1 of Annexure-A of Volume 2.

7.1 YEAR 2009 (Base case Network)

Abu Dhabi Power Station was fully retired effective 31st December 2007. 400kV OHL circuit from

Taweela Bext (TANE) interconnecting Taweela Power Station and Abu Dhabi Island is fully

operational. Umm Al Nar plant capacity (778MW) and Al-Ain power station capacity (256MW)

have been rescheduled for retirement until end Yr 2012.

Fujairah F1 plant (Qidfa) and F1 extension unit fully operational. The power generation is evacuated

through 400kV OHL interconnecting Dhaid 400/220kV grid station (2x500MVA capacity) serving

the demand requirements of Northern Emirates.

A 400/132kV, 2x500MVA grid station in Fujairah (Qidfa) is commissioned in Year 2008 to

integrate the existing F1 generation. 400kV switchgear extension works are currently on-going for

integrating the F1 extension (220MW) and F2 (2,114MW) generation facilities in Yr 2009 &

Yr 2010 respectively. The extension works consider 400kV OHL power evacuation facilities

between Fujairah and Sweihan grid stations for export of power to Abu Dhabi Emirate.


Sweihan 400/220kV (3x500MVA) grid station is operational. The 400kV OHL circuit between

Shahama and Dahma grid stations is loop in and out of Sweihan grid station. Sweihan 400/220kV

grid station is established to provide necessary voltage support to Dahma and Al-Ain South West

(AASW) 400kV grid stations for a fault on 400kV network near Taweela. Also, Sweihan grid station

is planned to be the key interface node for export of power from Fujairah to Abu Dhabi Emirate

after commissioning 400kV OHL circuit interconnecting Fujairah (Qidfa) and Sweihan 400kV grid

stations in Yr 2010.

132/11kV (2x40MVA) substation in Delma Island is planned before summer 2009. 132kV supply

source to Delma Island will be fed by 132kV submarine cables from Shuweihat 132kV switchgear.

400/132kV grid stations in Reem and Sadiyat are commissioned. Two (2) 400kV cable circuits

interconnecting Reem Island and Abu Dhabi Island is commissioned. 132/22kV substation in S1

(Reem Island) is expected to commission by Q3 Year 2009 to supply initial loads of Reem Island.

400kV ring has been established in Abu Dhabi Island. It is fed by two (2) 400kV OHL circuits from

Taweela side and two (2) 400kV OHL circuits from Sas Al Nakheel side complying with N-2

security of supply. 400kV OHL circuit is quad conductor, ACSR Dove type rated 1455MVA per

circuit. For N-2 contingency (outage of any two combination of 400kV OHL circuit to Abu Dhabi

Island), the other two 400kV OHL circuits is capable to meet the demand of Abu Dhabi Island.

400kV XLPE cables (2 circuits) between E48-Sas Al Nakheel are planned before summer 2009. The

existing 400kV OHL (2 circuits) between E48-Sas Al Nakheel is planned to be replaced by 400kV

XLPE cables before summer 2010.

132/11kV (4x40MVA) substations in Khalifa Park, and Khalifa B; and 132/22kV (4x80MVA)

Substation in Yas Island and S1 Reem Island are planned to commission before summer 2009.

132kV supply source to 132/22kV substation in Yas Island will be fed by 132kV OHL from

Taweela-A 132kV switchgear until Bahia 400/132kV grid station is commissioned.

Shuweihat Power Station (SHPS) is connected to the transmission network of Abu Dhabi via 2 x

400kV OHL circuits to Mussafah. For N-1 contingency, generation from SHPS is restricted in order

to maintain the system security. This constraint will be cleared once the new 400 kV OHL circuits

from Madinat Zayed to Mussafah/Al Ain South West is completed in Yr 2010.

Due to the delay in the installation of 132kV neutral grounding reactor, NGR (10Ω) on 400/132kV,

500MVA transformers at E19 and E48 grid stations, and in order to facilitate Al Salam Street

projects and other on-going projects in Abu Dhabi Island, an interim 132kV operational arrangement

for Abu Dhabi Island is being adopted by LDC for Year 2009.


ICAD Steel factory (GHC & Emirates Steel) loads will be supplied by a dedicated 220kV grid

station connected via three (3) 220kV circuits (from Mussafah, UAN and GIC 220kV busbars),

planned to commission before summer 2009. The incoming 220kV cable circuit to the above 220kV

grid station is 1,200 sq.mm XLPE circuit rated 315MVA per circuit.

Load flow study shows that the system performance (voltage & equipment loading) is satisfactory

for Yr 2009 network configuration.

Dhaid 400/220kV, 500MVA transformer load shall be restricted within its firm capacity to comply

with N-1 criteria. Based on the negotiations between ADWEA/FEWA/SEWA, Dhaid 400/220kV

grid station may provide supplies to FEWA/SEWA, over and above its firm capacity on NON-FIRM

basis.

To limit the single phase fault current at Umm Al Nar (UAN) 132kV, Sas Al Nakheel (SASN)

132kV and Salt & Chlorine (SLTC) 132kV busbars within acceptable limits, one of the inter-bus

400/132kV, 500MVA transformer at Sas Al Nakheel (SASN) is to be kept open at one end in

addition to keeping out of service one of the machines connected to UAN 132kV busbar.

400kV, 220kV and 132kV system configuration of Yr 2009 is shown in Figure 1 and Figure 7.

7.2 YEAR 2010

400kV inter-tie with EMAL Smelter is expected to be energized this year. Transco’s battery limit is

the 400kV cable sealing end of the new 400kV GIS bay at TANE grid station. The 400kV

interconnection between EMAL and Transco will mutually benefit in respect of;

• Supply of electricity from Transco to EMAL for construction/commissioning purpose.

• Availability of excess power from EMAL’s permanent power generation facilities that may

become available for sale from EMAL to ADWEA.

• Grid stability and increased security of supply to both EMAL and Transco grid.

• Potential supply of back-up or emergency power that may become available for sale from

ADWEA to EMAL.

400kV OHL between Madinat Zayed 400/220kV grid station and Mussafah junction (Hameem

Junction) is planned to close the loop of other outgoing two 400kV OHL circuits from Shuweihat to

Madinat Zayed and thereby removing the generation constraint at Shuweihat Power Station.


The neutral earthing reactors (10Ω) have been installed at 132kV neutrals of 400/132kV, 500MVA

transformers at E19 and E48 grid stations in Abu Dhabi Island.

Dhaid 400/220kV, 500MVA transformer load shall be restricted within its firm capacity to comply

with N-1 criteria. Based on the negotiations between ADWEA/FEWA/SEWA, Dhaid 400/220kV

grid station may provide supplies to FEWA/SEWA, over and above its firm capacity on NON-FIRM

basis. The results of load flow study for Year 2010 indicate that 220kV circuits between Mussafah-

Steel/GIC-Steel may be overloaded to about 120% for N-1. Therefore, short-term network re-

arrangement may be required (e.g. open the 220kV link between UAN-Mahawi 220kV grid station)

to alleviate overloading of 220kV circuits Mussafah-Steel/GIC-Steel under N-1 contingency.

To limit the fault current at Umm Al Nar (UAN) 132kV, Sas Al Nakheel (SASN) 132kV and Salt &

Chlorine (SLTC) 132kV busbars within acceptable limits, one of the inter-bus 400/132kV, 500MVA

transformer at Sas Al Nakheel (SASN) is to be kept open at one end in addition to keeping out of

service one of the machines connected to UAN 132kV busbar.


Major power projects planned for commission before summer 2010 are the following;

• Integration of F2 generation at 400kV Fujairah (Qidfa) grid station.

• 400kV OHL interconnection between Fujairah (Qidfa) and Sweihan grid stations.

• Two (2) 400kV XLPE cable circuits between ADST-Sadiyat grid stations.

• Conversion of two (2) 400kV OHL circuits to 400kV XLPE between E48-SASN grid stations.

• 400kV OHL interconnection works between Madinat Zayed WR-Hameem Junction (near the

road junction in Mussafah leading to Hameem).

• 400kV switchgear works at TANE for EMAL interconnection.

• 220/33kV grid station (3x140MA) at AAIC and 220/33kV grid station (2x140MVA) at Umn Al

Oush and related 220kV OHL works in Al-Ain Region

• New 132/11kV substations (4x40MVA) at E01 (SOUQ), W41 (GRHD), E40 (DANT) in

Abu Dhabi Island. New 132/22kV substations (4x80MVA) at Raha-B and Raha-A; and

associated 132kV cable works.

• Four (4) new 132/22kV substations (4x80MVA) in Sadiyat Island; Three (3) new 132/22kV

substations (4x80MVA) in Reem Island; and associated 132kV cable works.


7.3 YEAR 2011

Shuweihat S2 Plant (1,730MW) is expected to be fully operational this year. Extension works of the

existing 400kV switchgear in Shuweihat for S2 integration is currently on-going. The existing

design of 400kV OHL from Shuweihat is capable to accommodate export of power from both S1

and S2 generation.

In this year, Al Zawra gas turbines (total capacity about 400MW) are expected to be integrated to

Mirfa 220kV switchgear.

400kV OHL interconnection between existing Shuweihat 400kV switchgear and new SILA 400kV

switchgear is expected to be established after summer 2010 to facilitate GCC interconnection.

In this year, Elixier-II Gasco project (near Mirfa Power Plant) and ADCO BAB gas compression

project is expected to be integrated to Transco network. The 220kV supply scheme is likely to

change based on the recent discussions between Transco Higher Management & Gasco Elixier.

New 400/220kV grid station (3x500MVA) and 220/33kV substation (2x3x100MVA) at ICAD and

associated 400kV & 220kV OHL works is planned after summer Yr 2010. New 400/132kV grid

station (2x500MVA) at Bahia is also planned to be integrated in this year.

2nd 220kV XLPE cable circuit between Dahma-Zakher 220kV grid stations is planned to avoid

overloading on the existing 220kV cable circuit between Dahma-Zakher 220kV grid station, after

commissioning the planned 220/33kV grid station in Al Mukkum.

The results of load flow study for Year 2011 are as follows;

a) 220kV circuits between Mussafah-Steel/GIC-Steel may be overloaded to about 120% for N-1.

Therefore, short-term network re-arrangement may be required (e.g. open the 220kV link

between UAN-Mahawi 220kV grid station) to alleviate overloading of 220kV circuits

Mussafah-Steel/GIC-Steel under N-1 contingency.

b) 132kV XLPE cable circuits between E19-JZRH (W13) may be loaded to about 105% for N-1. c) 132kV XLPE cable circuit between UAN-Khalifa A (MKAA) may be overloaded to about 125%

for N-1 contingency of 132kV circuit UAN-Khalifa B (MKBB). d) 132kV XLPE cable circuit between NADIA-Khalifa A (MKAA) may be marginal overloaded to

about 101% for N-1 contingency of 132kV circuit NADIA-Khalifa B (MKBB).


e) 132kV XLPE cable circuits between NADIA-Khalifa B (MKBB) and UAN-Khalifa B (MKBB)

may be overloaded to about 103% and 127% respectively for N-1 contingency of 132kV circuit

UAN-Khalifa A (MKAA).

Short-term 132kV network re-arrangement may be required to alleviate the above-mentioned 132kV

feeder overload (i.e. re-arrange 132kV substations between SASN and Bahia Zones) until the

Mahawi 400/132kV grid station is commissioned in Year 2012.

With the commissioning of ICAD 400/220kV grid station, the fault current at Mussafah/GIC 220kV

bus is high close to its switchgear limits. Therefore, certain network re-arrangement may be required

(e.g. open the 220kV link between Mussafah-GIC grid station or keep one of the inter-bus

400/220kV, 500MVA transformer at Mussafah open at one end) to limit the fault levels within

switchgear rating.






Major power projects expected to be commissioned before summer 2011 are the following;

• 400kV switchgear extension works at Shuweihat for S2 generation integration.

• Integration of Al Zawra gas turbines in Mirfa 220kV switchgear.

• 400kV OHL works from Shuweihat to Sila-400kV for GCC grid interconnection.

• Loop in & out the two (2) 220kV OHL circuits between Ruwais-Mirfa into the proposed

ADCO’s 220kV grid station for their Elixier-II Gasco project near Mirfa Power Station [Note:

220kV supply scheme likely to change & same will be reflected in Transco 2010 Statement

(2011-2015)].

• 220kV switchgear extension works at Bab for ADCO Bab gas compression project.

• 220/33kV, 80MVA mobile unit in Hameem Area-WR (near Qasr Al Sarab).

• 220/33kV, 3rd 80MVA mobile unit in Shamkha area.

• 400/132kV grid station (2x500MVA) at Bahia & associated 400kV OHL works.

• 400kV OHL modification works between Taweela-Bahia-Sadiyat and TANE-Bahia.


• 400/220kV grid station (3x500MVA capacity) and 220/33kV grid station (2x3x100MVA

capacity) at ICAD and associated 400kV & 220kV OHL works.

• 220/33kV (3x140MVA) grid station at Ghantoot and related 220kV OHL works interconnecting

Samha-Ghantoot 220kV grid stations.

• 220kV cable works between Dahma-Zakher 220kV grid stations.

• 3rd 400/220kV, 500MVA transformer and 3rd 220/132kV, 300MVA transformer in Dhaid.

• New 132/22kV substations (4x80MVA) in New Airport, Masdar Green City and related 132kV

cable works.

• 132kV cable works for integrating Bahia 400/132kV grid station to 132/22kV substations of

Raha-A, Raha-B, Yas Island, Masdar Green City; and 132/33kV substation in old Bahia.

• New 132/11kV substations (4x40MVA) at ADNEC, Zayed Sports City (W57) and Corniche

Hospital (E12) and related 132kV cable works.

• 132/33kV, 3x100MVA transformers and associated 132kV switchgear works at Taweela-A.

7.4 YEAR 2012

New 400/220kV (2x500MVA) grid station with 220/33kV, 2x(3x100MVA) grid station at

Taweela-C is planned to be established and shall be interconnected to Taweela P.S. These grid

station works shall be carried out by the IWPP contractor to be completed as the first lot, in order

not to delay the supply scheme to Khalifa Port and Industrial Zone (KPIZ).

Additional 220kV capacity in KPIZ will be embarked in a phased manner as per the adopted

Transco strategy, in view of the uncertainty surrounding the long-term demand requirements of

these developments.

Taweela P.S 400kV busbars must be operated split to manage the fault levels.

Shamkha 400/132kV (2x500MVA) is planned to be established this year in line with the Higher

Management strategy to secure Shamkha as the future transmission system backbone to form a

400kV ring for evacuating power from Taweela to Capital District/Mahawi and Abu Dhabi Island.

This strategy will be evaluated in detail by TEPCO in their Phase-3 study work.

Due to the pressure from governmental bodies and developers there is a restriction for building new

OHLs mandating replacing some existing 400kV OHLs. This may lead to significant increase in the

length of 400kV cables in the coming years. In view of this scenario, Transco is currently assessing


options to optimize the 400kV network configuration and study all the technical challenges arising

from the possible extensive use of EHV cables, which have implications on the proposed 400kV

network configuration of current on-going projects between Bahia-Sadiyat-Reem/ADST, SASN-

Mahawi-Mussafah, and Taweela-Shahama-Shamkha. Transco commissioned TEPCO to carry out a

study to address the above and propose changes to the transmission system taking into account

development up to Yr 2018.

Mahawi 400/132kV (3x500MVA) grid station and conversion of existing 220/33kV stations in

Mahawi and Watbha to 132/33kV substations are expected to be completed by summer Yr 2012.

Hence, part of the 220kV OHL link connecting the existing Mahawi and Watbha substations would

become redundant and hence could be dismantled.

As per revised ADWEC 2009 data, Masdar Shams solar generation is planned to be developed in

three (3) stages, total 150MW by 2014. The 1st phase of solar generation (50MW) is expected to be

operational in 2012. 220kV grid station at Madinat Zayed-WR will serve as the interface connection

for integration of Masdar Shams solar generation.

There is a need to establish new 400/220kV (3x500MVA) grid station in BAB by Year 2012 and

related 400kV OHL works (indicative at this stage) based on the revised ADWEC 2009 demand

forecast input data.

The fault current at Mussafah/GIC 220kV bus is high close to its switchgear limits. Therefore,

certain network re-arrangement may be required (e.g. open the 220kV link between Mussafah-GIC

grid station or keep one of the inter-bus 400/220kV, 500MVA transformer at Mussafah open at one

end) to limit the fault levels within switchgear rating.






Major power projects planned before summer 2012 are the following;

• 400/132kV grid station (2x500MVA) with 220/33kV grid station (2x3x100MVA) at Taweela-C,

400kV XLPE circuit interconnection between Taweela P.S - Taweela C; and 400kV OHL circuit

re-arrangement at Taweela P.S/TANE/Taweela-C (indicative at this stage, subject to TEPCO

final study).


• 2nd 400kV interconnection works with EMAL.

• 220kV switchgear works at Madinat Zayed-WR to integrate Masdar Shams Solar generation.

• 400kV cable works (2 circuits) between Reem-Sadiyat grid stations.

• 400/132kV (2x500MVA) grid station in Shamkha with 132/33kV (3x120MVA) substation and

related 400kV OHL works.

• 400/132kV (3x500MVA) grid station in Mahawi.

• 400kV XLPE circuits (3 circuits) between Mahawi-Mussafah (indicative at this stage, subject to

final TEPCO study).

• 400/220kV (3x500MVA) grid station in BAB and related 400kV OHL works (indicative at this

stage. 400kV scheme is subject to further study and may change based on the generation

scenario in Year 2013/2014).

• 220/33kV, 2x80MVA grid station in Qusahwira and related 220kV OHL works between

Hameem area (near Qasr Al Sarab) -Qusahwira grid station.

• 2nd 220/33kV (2x3x100MVA) grid station in ICAD-A and associated 220kV cable works.

• 3rd 220/33kV (3x100MVA) grid station in ICAD-D and related 220kV OHL works.

• 220/33kV grid station (3x120MVA) at Al-Mukkam in Al-Ain and related 220kV OHL works.

• 220/33kV (3x120MVA) grid station in Ghadeer near Dubai Border and related 220kV OHL

works [Note: This project has been cancelled based on the latest discussions with the developer

and its loads will be fed from planned new 220/33kV Ghantoot grid station & the same will be

reflected in Transco 2010 Statement (2011-2015)].

• 220kV OHL works interconnecting Taweela-C 220kV switchgear and Ghantooot 220/33kV grid

station.

• 132/11kV (3x40MVA) substation in Sir Baniyas Island and related 132kV submarine cables

interconnecting Shuweihat 132kV switchgear and proposed 132kV substation (substation

capacity staging is subject to further assessment).

• 3rd 80MVA transformer at Sila 220/33kV grid station.

• 132/22kV (4x80MVA) substation in Sowa Island and 132/22kV (4x80MVA) substation in S2

Reem Island; associated 132kV cable works.

• 132/22kV substations (4x80MVA) in Mohamed Bin Zayed City, Capital District and New

Mahawi, conversion of existing 220/33kV grid stations in Mahawi and Watbha to 132/33kV


substations ; associated 132kV cable works and all other works that form part of Mahawi

scheme [Based on revised request received from ADDC after publishing the draft Transco 2009

Statement, supply scheme for New Mahawi has been revised to 132/33kV (2x120MVA) and the

same will be reflected in Transco 2010 Statement (2011-2015)].

• 2nd 132/22kV (4x80MVA) substation in Yas Island and related 132kV cable works.

• 132/11kV (4x40MVA) substations in Rawdat Abu Dhabi, new W24/02, Al Mashtal, Presidential

Palace (in Ras Al Akdar area), E03; and related 132kV cable works.

• 400/132kV (3x500MVA) grid stations in Ajman and New Fujairah City; and related 400kV

OHL works in Northern Emirates.

• 400kV OHL works interconnecting Fujairah (Qidfa)-Ras Al Khaimah and Fujairah (Qidfa)-New

Fujairah City.

7.5 YEAR 2013

Umm Al Nar Plant (778MW) and Al-Ain Power Station (256MW) generation are planned to retire

from end Yr 2012. Taweela-C plant (1,720MW) is assumed to be fully operational this year.

Transco is currently in the middle of the study to optimize the whole Transco transmission network configuration particularly Bahia-Sadiyat-Reem network, Mahawi and neighboring areas; and Taweela and neighboring areas for post-Taweela C generation and is subject to completion of

TEPCO final study. In view of the above, Transco best view of likely 400kV transmission network configuration for Year 2013 and major premises are briefly described below; Taweela-C generation is likely to split on three (3) busbars. The 400/220kV (2x500MVA) grid

station is located within New Taweela-C site.

Taweela 400kV busbar at Taweela P.S is run in split mode to contain the 400kV fault level. 400kV

quad boosters are installed between ADST-E19 400kV circuits to ensure the 400kV system is

operated in mesh mode. 400kV quad booster may reduce the 400kV cable requirements/shunt

reactors, controls the fault levels and provides operational flexibility.

There is a plan to optimize the 400kV network configuration of Bahia-Sadiyat and Mussafah-

Mahawi-Sas Al Nakheel (i.e. reduce no of 400kV cable circuits/400kV reactors between Bahia-

Sadiyat). The need for 3rd 400kV cable circuit between Mussafah-Mahawi arises only if Transco

decide not to pursue with the 400kV quad booster/phase shifter option and keep open link between


ADST-E19 grid stations. Hence, the above 400kV scheme is indicative at this stage and is subject to

completion of TEPCO final study.

In line with the Higher Management strategy to secure Shamkha as the future transmission system

backbone to form a 400kV ring for evacuating power from Taweela to Capital District/Mahawi and

Abu Dhabi Island. This strategy will be evaluated in detail by TEPCO in their Phase-3 study work.

For the Post-Taweela C generation scenario, 400kV OHL network configuration along Taweela-

Shahama-Shamkha is likely to be optimized that meets all the technical requirements, provides

operational flexibility and possible reduction in the transmission reinforcement cost. This solution

calls for extension of Shahama 400kV by 2 bays which is feasible. No new OHLs are required from

Taweela to evacuate power from Taweela-C generation. 400kV switching station at Hameem

Junction which was previously planned could be delayed in view of the expected change in the

generation scenario from Shuweihat S3 to Taweela-C.

Two (2) 220kV circuits (one from BAB & other from ASAB) may provide 220kV supply source to

the proposed Shah 220kV grid station. This 220kV supply scheme arrangement is indicative at this

stage as Transco is still in the preliminary assessment stage.

New 400/220kV grid station in Ruwais Industrial area is required to provide long-term demand

requirements in the area. 400kV supply scheme arrangement for Ruwais Industrial area is indicative

only at this stage as Transco is currently discussing the options and possible supply scheme

arrangements with Takreer to supply long-term demand requirements in Ruwais Industrial area.

There is a plan to dismantle the redundant 220kV OHLs between Shahama, Wathba, and Khazna,

after the establishment of Mahawi 400/132kV and Shamkha 400/132kV grid stations. The existing

220kV OHL between Ramah and Watbha shall be diverted to Khazna to establish Ramah-Khazna

220kV circuit.




AAPS assets after retirement of the AAPS generation in Year 2012.

132kV supply scheme in Abu Dhabi/Reem Island and Abu Dhabi Island/SAS Al Nakheel is

optimized by utilizing the available spare capacity in Abu Dhabi Island, Reem Island and Sas Al

Nakheel 400/132kV grid stations leading to significant improvement in the effectiveness and

efficiency of assets.



a) 220kV OHL circuit between Mirfa-Bab may be marginal overloaded to 104% for N-1

contingency (for outage of Mirfa-Buhasa 220kV OHL circuit) and hence could be acceptable

taking into account its short-term overload capability.

b) To ensure satisfactory 220kV voltage profile, reactive compensation to the extent about

200MVAr is required in the western region (likely candidate is Shah-SGD/ASAB 220kV bus).

With the de-commission of Umn Al Nar Plant (778MW) generation and dismantling of redundant

220kV OHL circuits between UAN and Mussafah from end Year 2012, fault level restrictions at

Mussafah 220kV bus, Umm Al Nar (UAN) 132kV, Sas Al Nakheel (SASN) 132kV and Salt &

Chlorine (SLTC) 132kV busbars have been eliminated.

400kV, 220kV and 132kV system configuration of Yr 2013 (indicative at this stage) is shown in

Figure 5 and Figure 11.

Major power projects planned before summer 2013 are the following;

• Integration of Taweela-C generation modules with Transco transmission system.

• 400kV XLPE circuits (3 circuits) between Bahia-Sadiyat grid stations with 400kV line reactors

and 400kV bus reactors (indicative at this stage, subject to TEPCO study).

• 400kV XLPE circuits (2 circuits) between Mahawi-Sas Al Nakheel (indicative at this stage,

subject to TEPCO study).

• Additional 400kV OHL circuits for Shamkha 400/220kV grid station; and re-arrangement of

existing 400kV OHL circuits emanating from Shahama and Shamkha grid stations (indicative at

this stage, subject to TEPCO study).

• 400/220kV (3x500MVA) grid station in Ruwais and related 400kV OHL works (indicative at

this stage).

• 220kV grid station in Shah and related 220kV OHL works interconnecting Bab-Shah-ASAB

grid stations (indicative at this stage, subject to further assessment).

• New 220/33kV (3x120MVA) grid station in Al-Ain Power Station (AAPS) and related 220kV

cable works in Al-Ain.

• Dismantle redundant 220kV OHLs between Shahama, Wathba, and Khazna. Existing 220kV

OHL between Ramah and Watbha shall be diverted to Khazna to establish Ramah-Khazna

220kV circuit.


• 132kV cable interconnection works between Reem/Sowa Island-Abu Dhabi Island; and between

SAS Al Nakheel-Abu Dhabi Island.

7.6 YEAR 2014

The assumption of additional generation in Shuweihat requires Transco to establish additional new

400kV OHL circuits from Shuweihat and re-arrangement of existing 400kV OHL circuits. This is

because the existing design of 400kV OHL circuits from Shuweihat is capable to accommodate

export of power only from S1 and S2 generation and no more. Also, there is a need to establish new

400/220kV grid station at BAB by Year 2012 and at Ruwais by Year 2013 to meet the demand

requirements in the area based on the revised ADWEC 2009 demand forecast input data.

Therefore establishment of this new 400/220kV grid station in BAB and in Ruwais; and related

400kV OHL scheme is only indicative at this stage, subject to finalization of Memorandum of

Understanding (MoU) between ADWEA and ADNOC; firm confirmation from ADWEC on the

generation expansion scenario in Year 2013/2014. Further network analysis is needed for 400kV

and/or 220kV network scheme in Western Region to take into account the likely change in the

generation scenario (e.g. say for any additional generation in Fujairah F3/Mirfa) and Transco long-

term strategy for integrating Nuclear Power Plants.


a) 220kV OHL circuit between Mirfa-Bab will be marginal overloaded to 104% for N-1

contingency (for outage of Mirfa-Buhasa 220kV OHL circuit) and hence could be acceptable

taking into account its short-term overload capability.

b) To ensure satisfactory 220kV voltage profile, reactive compensation to the extent about

200MVAr is required in the western region (likely candidate is Shah-SGD/ASAB 220kV bus).

c) Power flow control through 400kV quad boosters at ADST is required to avoid overloading

violation under certain 400kV N-1 network conditions.

With the de-commission of Umn Al Nar Plant (778MW) generation and dismantling of redundant

220kV OHL circuits between UAN and Mussafah from end Year 2012, fault level restrictions at

Mussafah 220kV bus, Umm Al Nar (UAN) 132kV, Sas Al Nakheel (SASN) 132kV and Salt &

Chlorine (SLTC) 132kV busbars have been eliminated.

400kV, 220kV and 132kV system configuration of Yr 2014 (indicative at this stage) is shown in

Figure 6 and Figure 12.


8 Power Critical Assets The following power equipment assets are subject to critical review taking into account the asset

condition. The assessment is still on-going and is subjected to further detailed analysis.

a) Three (3) 400/132kV, 275MVA transformers at Taweela P.S.

b) Two (2) 220/132kV, 250MVA transformers at Umn Al Nar (UNPS).

c) Two (2) 220/33kV, 90MVA transformers at Zakher 220/33kV grid station.

d) Two (2) 220/33kV, 100MVA transformers connected to Toshiba 33kV switchgear at AAPS.

e) Two (2) 220/33kV, 100MVA transformers at Watbha.

f) Three (3) 132/11kV, 40MVA transformers at Mussafah.

g) Two (2) 132/11kV, 40MVA transformers at W13 (JZRH).

h) One (1) 132/11kV, 40MVA transformer at W24 (MSHF).

i) 500 sq.mm oil filled cables ALSM-TCLB (2.4km), JSRN-MOS1 (6.3km), MOS1-SLTC (6.3km).

The criticality of 220/132kV, 250MVA transformers at UNPS is most severe (Criticality Index 4).

For other equipment mentioned above, the Criticality Index is 3. The criticality index is the

summation of five (5) key asset main attributes namely mission impact, equipment current

condition, asset age, no of faults in last 5 years and environmental effect.

The above transformers are taken “off line maintenance” yearly, as an exception because of their

high criticality. On-line oil regeneration is done two years back for transformers in AAPS, Zakher,

Mussafah and Watbha and they are currently under close monitoring and observation by the

Maintenance Division to demonstrate their performance. There is a plan to dismantle the two (2), 220/132kV, 250MVA transformers at UNPS after

retirement of Umm Al Nar plant capacity (778MW) scheduled in end Year 2012. There is a plan to convert the 220/33kV, 100MVA transformers (Item e above) to 132/33kV,

120MVA at Watbha grid station as part of Mahawi Scheme expected to commission by summer

Year 2012.

Part of the sections of 500 sq.mm oil filled cables between JSRN-MOS1 and MOS1-SLTC are being

replaced as part of 132kV interconnection scheme between JSRN-W57 and SLTC-W57 and after

transfer of Mussafah 132/11kV substation to Mahawi Zone in Year 2012.


The replacement of existing old 132/11kV substation in W24 (MSHF) is expected to be completed

in Year 2009/2010, wherein the 40MVA transformer identified above (Item h above) is one of the

candidates.

9 Power Projects Influenced or Directed by External Factors Recently, Transco completed an assessment in identifying the list of power projects which were

implemented or currently under progress and influenced or directed by external factors beyond the

control of the Company. The summary gives a narrative for Transco making sub-optimal decisions

and its impact on the project cost and the same has been made available to RSB.

10 High Level Area Strategic Projects (Preliminary and Schemes Currently NOT Defined)

To sustain the estimated system (Abu Dhabi and Northern Emirates) demand growth rate (16.4%)

for the period 2009-2014 and need to establish short- & long-term additional generation resources

from Year 2013 and beyond, Transco identified some area strategic projects, whose schemes are

currently not defined and identified yet in Transco 2009 Five Year Electricity Planning Statement

(2010-2014), however likely to be initiated during Period 2010-2014. These area strategic projects

are preliminary and may not be exhaustive due to limited available data and premature for any

scheme assessment to be taken at this stage. The summary of high level area strategic projects is;

a) Grid station & OHL works for integration of Nuclear Power Plant by Year 2017.

b) 400kV and 220kV works (grid station and OHL works) to meet ADNOC Group short- and long-term demand requirements in Western Region.

c) 400/132kV grid station and 400kV OHL/cable works in Capital District to meet the short- and long-term demand requirements in the area per UPC Plan Abu Dhabi 2030.

d) 220kV works (grid station and OHL works) to meet short- and long-term KPIZ demand requirements in Taweela. 220kV Works for ICAD and neighboring areas.

e) 220kV works (grid station and OHL works) in Al-Ain and Western Region.

f) 132kV works (Substation and 132kV Cable Works) in Mohamad Bin Zayed City/Mussafah, Bahia, Mahawi, Shamkha, Watbha and Capital District Area.

g) 132kV works (Substation and 132kV Cable Works) in Mina Area, Lulu Island, Grand Mosque district and other Abu Dhabi Island districts.


11 Metering, Data Exchange and Communication System Plans

Re-structuring and Privatization of the Water and Electricity Sector requires flow of various

commodities between various parties to be properly accounted for at boundary points so that

financial transactions can be settled.

All the relevant Licensed Operators within the Water and Electricity Sector in Abu Dhabi Emirate

have an obligation to ensure that there is a Metering System installed complying with the provisions

of Metering & Data Exchange Code (MDEC) as reasonably practicable to the Commercial

Boundary at each Licensed Operator site. TRANSCO is the custodian of MDEC and has a license

obligation to administer settlement metering systems and data exchange. In addition TRANSCO is

obliged to support the settlement process by collecting, verifying and providing to ADWEC all the

data required for settlement processes.

The Bureau has an overseeing role to ensure fair and accurate settlement data is exchanged between

TRANSCO and other sector USERs. The Bureau requires an annual audit of the MDEC system by

an independent Consultant. The first audit was completed in March 2007 (Refer PB Power TA

Report dated April 25, 2007) and has continued annually since this date.

ADWEA initiated, under Shuwaihat S1 Project, the provision of Despatch & Settlement Special

Facilities (DSSF) under which TRANSCO would be able to collect, process and manage the data

required to support its license obligation with regards to settlement data. TRANSCO took the

initiative to establish, on licensed operator behalf, the core of the settlement system stipulated in the

Metering and Data Exchange Code in order to enable the operation of the DSSF systems.

The communication and telesystem infrastructure is designed to achieve high speed data transfer to

cater for the settlement metering and data exchange development project and handle high demand

band-width applications such as power and water management system, video conferencing and

CCTV, and also caters for SCADA, power monitoring system and DSSF systems. The

communication system also provides a reliable media for the transmission of protection signals

between the grid stations. The Wide Area Network (WAN) interlinking ADWEA, TRANSCO Head

Offices in Abu Dhabi, TRANSCO offices in Al Ain and the LDC is also provided.

11.1 Metering & Data Exchange System

The Metering and Data Exchange Code specifies the minimum technical, design and operational

criteria relating to equipment specification, quantities measured and data collected and exchanged


between parties for the purpose of the financial settlement. Commodities included for measurement

within this process are;

• Electricity - between Power Producer and Transmission System Operator and from

Transmission System Operator to Distribution Company.

• Water - between Water Producer and Transmission System Operator and from

Transmission System Operator to Distribution Company.

• Fuel Oil - between Fuel Oil supplier and Power Producer.

• Gas - between Gas supplier and Power Producer.

MDEC was substantially re written in 2008 and published as Ver 3.0 of the Code with a required

compliance date of Jan 1st 2010.

MDEC compliance is an obligation for all Sector licensees and the responsibility of Transco to

maintain it and audit licensee compliance against it. To meet the obligation, Transco initiated the

Settlement Metering and Data Exchange Project (N2095) in Yr 2005, which was substantially

completed in 2007 with additional work in 2008/09, allocated to cater for new requirements and

additional interface points. This additional work is also now nearing completion with Transco doing

all that is possible to maximize percentage of Code compliance by Jan 1st 2010.

The overall scope of the project covered provision of a metering system that complies with the

requirements of the Metering and Data Exchange Code (MDEC). The metering system has the

capability to collect and aggregate the metered data and feed this data to a verification system

(DCVS) in order to provide a suitable data output format. “Settlement ready meter data” will then be

generated that will be used to establish the chargeable amount due and the production of appropriate

invoices. The system includes field metering at Defined Metering Points (DMPs) for electricity and

water as well as fuel gas and liquid fuel supplies to Generators and Desalinators. The project

comprised of several discrete project components namely:

a) Supply and installation of electricity meters with compensation for the errors of existing non

complaint instrument transformers.

b) Supply and installation of water meters.

c) Supply and installation of gas and liquid fuel meters.

d) Provision of radio and fiber optic telecommunication facilities for the settlement metering

and data exchange purpose.


Additional work under the project is to ensure MDEC compliant metering at a number of new

substations and also at previously un-metered water connection points as the Transco system expands

and is modified to cater for the rapidly changing environment in Abu Dhabi and beyond.

Dispatch and Special Settlements Facilities (DSSF) implementation plan has been initiated by

Transco and ADWEC late summer 2008. Contracts have been signed with the DSSF subsystems

vendors, namely, RWE - Electronic Dispatch Logger, Logica – Data Collection Verification System,

Siemens – Unit Commitment, BAER – Instation Metering Siglon and ABB – Network Manager.

The implementation of the five subsystems is in full gears, and they are expected to be completed by

the beginning of Q2 2010.

All new projects involving interface metering are now reviewed at design stage onwards for

compliance against Code requirements with detailed testing prior to acceptance as operational

settlement metering and formal registration of technical details by asset owner with Transco to verify

Code compliance and to enable a baseline for periodic field audit.

As indicated above Transco has updated the MDEC and consulted further on necessary supporting

procedures for Registration, Sealing, Dispensation and Meter Reading. In line with these procedures

Transco has commenced sealing sensitive parts of metering systems to prevent possible tamper and to

ensure secure data and asset owners are actively engaged in formal registration of systems operational.

The MDEC Panel is established to provide a forum for debate and discussion of future development

needs of the Code and its related implementation. Transco hosts 4 meetings a year for this panel with

ongoing ad-hoc meetings with members to resolve issues when raised.

Future Plans for Metering & Data Exchange System

After establishing the Metering & Data Exchange infrastructure, Transco is playing an increasingly

pivotal role in the growth of the metering systems and will:

• Continue its responsibility on implementing and developing MDEC

• Implement the requirements of published MDEC procedures.

• Support the RSB and Sector Companies in providing a dispensation process where sector

companies can seek to be relived of some aspects of the MDEC Regulations where

appropriate reasons exist.

• Review new schemes for compliance against the principles laid down in the Code.

• Audit installed systems for compliance with the Code.


• Enhance quality checks by utilizing manually read data to verify gained by electronic

interrogation.

• Continue to enhance, maintain and operate the DSSF systems and in particular finalize the

newly commissioned DCVS system so that its significant benefits can be realized.

• Continue to provide communication interface to Metering Equipment to a termination point

agreed with the Licensed Operator that enables the reliable transfer of all settlement data to

the settlement systems.

• Establish further metering related procedures and standards in support of the Code including

but not limited testing and calibration, loss adjustments, data security, inspection, testing and

audit of metering installations and measurement error correction.

• Review metering technology and associated data communications systems to optimize timely

use of emerging technologies.

11.2 Communication System

The general design of the existing telecommunication network is fiber optic system operating in ring

configuration mode. The expansion of the communication system is gradually increasing in parallel

to both power and water networks in terms of number of nodes and communication links of different

media. The future plans for improving the reliability and quality of the existing communication

services are;

• Migration from PDH (Pleisosynchronous Digital Hierarchy) to SDH

All the new stations under constructions and future planned stations will incorporate Synchronous

Digital Hierarchy (SDH) with either its first level as Synchronous Transfer Mode level 1 (STM-1),

which gives 155 Mbps bit rate or the higher level (STM-16), depending upon the requirements.

• Utilization of STM-16 Technology

STM-16 backbone network has already been established between the LDC and important nodal

points, thus providing a high speed communication platform for transmission of all the required data

from remote sites up to LDC. Future high bandwidth demand applications as for the new water

management system (WMS), video conferencing, and CCTV will be easily provided through this

backbone. SDH technology opens the door for high speed communication upgrade from STM-1 up

to STM-64, which gives transmission rate up to 10 Gbps. Also SDH is the basic technology for the

new emerging technology namely dense wave division multiplexing (DWDM), which can be

adopted in future if the need arises.


• Data Radio Communication Network

Data radio communication network has already been established to cater for the Emirate wide

scattered water metering points as well as for some of the power metering related traffic, where the

fiber cables are not available. The same network will cater for the interface points monitoring and

control by the water management system.

• GSM Network:

GSM radio network is also being used for some of the water metering points, where fiber cables are

not available.

12 Opportunities and Deviations to the Previous Strategic Plans

The GCC (Gulf Cooperation Council) and ENG (Emirates National Grid) grid interconnection with

Transco network presents ADWEC with good opportunities for power exchange with its

neighbouring utilities and thereby lowering ADWEC’s economic procurement costs through higher

efficiency and higher load factors.

The inclusion of ADWEC’s electricity exports to the Northern Emirates has significantly increased

the total required capacity that ADWEC must procure and thereby enhance future IWPP investment

opportunities in the Sector, which in turn provides further opportunities for Transco to build new

transmission infrastructure.

The short- & long-term demand requirements of ADNOC Group in Western Region provides an

opportunity for the development of 400kV and 220kV transmission infrastructure and additional

generation sites (e.g. Mirfa, Shuweihat S3, Nuclear Power Plant).

Capacity in Sadiyat, Reem, Mahawi, Bahia, Shamkha, ICAD, Taweela-C, Madinat Zayed, Sweihan,

Al-Ain South West, Ras Al Khaimah, New Fujairah and Ajman grid stations provide potential new

demand supply point opportunities.

The major deviations of strategic plans mentioned in this Transco 2009 Statement as compared to

Transco 2008 Statement are summarized in Table 6.


Table 6 Major Deviations in Strategic Plans as compared to TRANSCO 2008 Statement.

S.N TRANSCO 2008 Electricity Planning Statement

(2009-2013) TRANSCO 2009 Electricity Planning Statement

(2010-2014)

1

As per ADWEC 2008 Statement, generation at Shuweihat S3 (1,700MW) assumed in Yr 2012, Masdar Hydrogen Plant (390MW net) in Yr 2013, Masdar Shams Solar Plant (120MW) by Yr 2013 have been considered. Three (3) generation site options and its implication on the transmission system performance are covered.

As per revised ADWEC 2009 data, generation at Shuweihat S3 postponed. Generation site at Taweela-C (1,720MW) in Yr 2013 is assumed as the most likely alternate generation site. Masdar Hydrogen Plant (390MW net) delayed to Yr 2015. Masdar Shams Solar Plant (150MW) by Yr 2014

2 400/220kV (4x500MVA) grid station for Khalifa Port and Industrial Zone (KPIZ) is planned in Yr 2012 to meet the demand requirements of KPIZ.

Taweela-C generation is likely to split on three (3) busbars. New 400/220kV grid station is located within Taweela-C site. The new 400kV grid station at Taweela-C shall be interconnected to the Taweela P.S 400kV busbar by 400kV cables (2 circuits). Taweela 400kV busbars must be operated split to manage the fault levels. The new 400/220kV grid station design shall have 2x500MVA with a provision for future 3rd 500MVA transformer.

3 _

Shamkha 400/132kV (3x500MVA) grid station is planned in Yr 2012 to meet the long-term demand forecast in Shamkha area and in line with the Higher Management strategy is to secure Shamkha as the future transmission system backbone to form a 400kV ring for evacuating power from Taweela to Capital District/Mahawi and Abu Dhabi Island. This strategy will be evaluated in detail by TEPCO in their Phase-3 study work.




(2010-2014)

4 400kV transmission network configuration along Taweela-Bahia-Sadiyat; SASN-Mahawi-Mussfah is based on Shuweihat S3 generation scenario.

400kV transmission network configuration is intended to be optimized along Taweela-Bahia-Sadiyat; Taweela-Shahama-Shamkha; SASN-Mahawi-Mussfah based on Taweela-C generation scenario and developments in Shamkha area (as per Item 3 above) and postponement of 400kV switching station in Hameem Junction. This will be subject to TEPCO study.

5 _

After commissioning the proposed new 400/132kV grid stations in Mahawi and Shamkha, Transco plan to dismantle the redundant 220kV OHLs between Shahama, Wathba, and Khazna. The existing 220kV OHL between Ramah and Watbha shall be diverted to Khazna to establish Ramah-Khazna 220kV circuit. This is planned in Yr 2014.

6 Demand forecast for ADNOC Group in Western Region about 1,500MW in Yr 2013 and their demand data is indicative.

Recent letter from ADNOC dated 18 March 2009 decided to take power to the extent of about 2,500MW in Yr 2014.

7

For the period 2008-2013, total system demand growth rate (Abu Dhabi + Northern Emirates) is 19%, demand growth rate for Abu Dhabi Emirate 16.8%, Abu Dhabi Region 15.8%, Al-Ain Region 7.6% and Western Region 26.5%.

For the period 2009-2014, total system demand growth rate (Abu Dhabi + Northern Emirates) is 16.4%, demand growth rate for Abu Dhabi Emirate 16.2%, Abu Dhabi Region 16%, Al-Ain Region 7.7% and Western Region 35.6%.

8 _ Presents list of critical power equipment assets based on criticality assessment.




(2010-2014)

9 _ Reference is made to power projects that were implemented, influenced or directed by external factors and beyond the control of Company.

10 _ Summarized a list of high level area strategic projects (currently not defined) and shall be the basis for producing the phantom projects list in Transco 2009 Annual Information Submission.

Transco 2009 5YPS (2010-2014), Main Report Attachments (Vol.1)

AMD/PNDD

ATTACHMENT-1

Electricity Generation Capacity Expansion Plan and Electricity Demand Forecast (at supply points) for Yr 2009-2014

Attachment-1

S.N Description/Region 2009 2010 2011 2012 2013 2014

1 Abu Dhabi Islands' & Mainland 3,502 4,188 4,903 5,786 6,624 7,373

2 Al-Ain Region 1,624 1,896 2,069 2,119 2,271 2,358

3 Western Region 685 754 1,589 2,145 2,588 3,141

4 Auxiliary & Desalination Process Loads 625 630 695 708 720 740

6,436 7,468 9,256 10,758 12,203 13,612

1 SEWA 350 350

2 Water Pumping & Aux Loads 130 290 290 312 350 356

3 Northern Emirates 920 1250 1600 2516 2651 2796

1,400 1,890 1,890 2,828 3,001 3,152

76 103 141 153 211 284

7,912 9,461 11,287 13,739 15,415 17,048

Table 1. Sum of Area Wise Peak Demand Forecast (MW)

C) Estimated Transmission Losses (MW)

Grand Total (MW)

Sub-Total-1 (MW)

Sub-Total-2 (MW)

A) Abu Dhabi Emirate

B) Northern Emirates

TRANSCO/AMD/PNDD TRANSCO 2009 Statement (2010-2014) Page 1 of 1

Attachment-1

S.N Substation Name/CodeS/S Capacity

(MVA)S/S Firm

Capacity(MW)2009 2010 2011 2012 2013 2014

%Utilisation in 2014

1 ADST (132/33kV S/S) 2 x 120 109 86 86 86 86 86 60 55

2 Market 1-MKT1 (W1) 4 x 40 109 77 82 85 88 88 94 86

3 Capital Gardens-CPGR (E08) 4 x 40 109 97 102 105 105 105 105 96

4 Firdous-FRDS (E09) 4 x 40 109 77 82 87 90 92 95 87

5 Zayed 2nd St-ZYD2 (E11) 4 x 40 109 100 100 100 100 100 100 92

6 Tourist Club-TCLB (E15) - See Note 1 4 x 40 109 101 105 105 105 105 105 96

7 Port (E14) - See Note 1 4 x 40 109 36 36 36 36 36 36 33

8 Market-MRKT (W02) 3 x 40 73 55

9 New W02 (Replacement of old W02) 4 x 40 109 55 55 60 62 65 60

10 Souq (E01) 4 x 40 109 30 30 50 50 60 55

11 Corniche Hosp/Saraya (E12) 4 x 40 109 43 45 60 65 60

12 E03 4 x 40 109 22 28 47 43

629 678 732 787 812 832

1 QURM (E19) 4 x 40 109 58 85 86 88 88 88 81

2 Madinat Zayed-MDZD (E04) 4 x 40 109 96 105 105 65 65 70 64

3 Khalidiya-KLDY (W09) 4 x 40 109 100 100 100 100 100 100 92

4 Al Jazeira Hosp-JZRH (W13) 4 x 40 109 92 102 103 82 95 95 87

5 Bateen-BATN (W16) 4 x 40 109 82 87 89 90 90 90 82

6 Bateen Bus Station-BSTN (W17) 4 x 40 109 84 88 90 91 91 91 83

7 Conference Palace (CONH) 4 x 40 109 41 41 41 51 51 51 47

8 Marina Mall-MRML 4 x 40 109 21 21 21 21 21 21 19

9 CLNS (E16/02) - See Note 1 4 x 40 109 30 32 55 65 68 70 64

10 Green Head-GRHD (W41) 4 x 40 109 32 52 54 65 70 64

11 Al Mashtal (W04 Sector) 4 x 40 109 10 13 45 41

12 Presidential Palace (Ras Al Akdar) 3 x 40 73 25 35 35 48

604 693 742 742 782 826

Al-Qurm (E19) Zone (Firm Capacity 1000MVA)

Table 2. 132kV Substations Peak Demand Forecast (MW) - Abu Dhabi Islands' and Mainland

ADST Zone Total (MW)

ADST Zone (Firm Capacity 1000MVA)

E19 Zone Total (MW)

TRANSCO/AMD/PNDD TRANSCO 2009 Statemen (2010-2014) Page 1 of 4

Attachment-1


(MVA)S/S Firm

Capacity(MW)2009 2010 2011 2012 2013 2014



1 Beach-BECH (E48) 4 x 40 109 91 91 91 95 95 95 87

2 Al Salam-ALSM (E18) 3 x 40 73 64 71 76 81 87 87

3 Falah-FLAH (E18/02) 4 x 40 109 63 63 67 87 87 90 82

4 Mushrif -MSRF (W24) 4 x 40 109 85 88 91 82 85 87 80

5 Embassy-EMBS (W59) 4 x 40 109 78 81 84 87 90 91 83

6 Higher Tech. College-HTCO (E25) 4 x 40 109 95 100 100 100 100 90 82

7 GLFA (W47) 4 x 40 109 76 76 76 80 80 80 73

8 Khalifa Park-KHPK - See Note 2 4 x 40 109 30 60 65 68 71 73 67

9 DANET-DANT (E40) 4 x 40 109 10 12 15 18 20 18

10 Zayed Sports City (W57) - See Note 2 4 x 40 109 24 25 28 37 34

11 ADNEC - See Note 2 4 x 40 109 40 52 58 60 55

12 W24/02 4 x 40 109 24 30 45 41

582 640 726 796 829 855

1 Reem T1 (Tomouh) 4 x 80 218 NL 20 22 25 32 15

2 Reem S1 (Sorouh) 4 x 80 218 15 20 30 35 40 42 19

3 Reem R1 (Reem Properties) 4 x 80 218 NL NL 30 32 35 16

4 Reem T2 (Tomouh) 4 x 80 218 NL NL 39 40 42 19

5 Reem S2 (Sorouh) 4 x 80 218 14 20 35 16

6 Suwa Island 4 x 80 218 34 116 133 61

15 20 50 174 273 319

1 Sadiyat (SDYT)-SS1 4 x 80 218 NL 40 40 66 70 32

2 Sadiyat B (SDBB)-SS4 4 x 80 218 NL 12 25 28 30 14

3 Sadiyat C (SDCC)-SS5 4 x 80 218 NL 20 38 45 62 28

4 Sadiyat D (SDDD)-SS6 4 x 80 218 NL 12 25 40 50 23

84 128 179 212

Sadiyat Zone (Firm Capacity 1500MVA)

Beach (E48) Zone (Firm Capacity 1000MVA)

Reem Zone (Firm Capacity 1500MVA)

E48 Zone Total (MW)

Reem Zone Total (MW)

Sadiyat Zone Total (MW)


Attachment-1


(MVA)S/S Firm

Capacity(MW)2009 2010 2011 2012 2013 2014



1 Salt & Chlorine (SLTC) 3 x 40 73 38 50 52 54 54 54 74

2 JSRN-S18 4 x 40 109 57 62 67 73 73 75 69

3 Mussafah (MOS1) - See Note 3 4 x 40 109 100 100 100 105 105 105 96

4 Khalifa A (MKAA) - See Note 3 4 x 40 109 80 85 89 90 92 95 87

5 Old Airport (NADIA) - See Note 3 4 x 40 109 48 54 61 65 65 80 73

6 Khalifa B-MKBB (Raha Gardens) 4 x 40 109 20 36 40 43 60 70 64

7 Rawdat Abu Dhabi - See Note 2 4 x 40 109 24 30 48 44

343 387 409 454 479 527

1 Existing Watbha (WATH) - See Note 4 3 x 120 218 170 175 180 190 200 215 99

2 Existing Mahawi (MHWG) - See Note 4 3 x 120 218 150 155 160 170 180 185 85

3 Mohammed Bin Zayed (MBZ) - 132/22kV 4 x 80 218 70 100 127 58

4 New Mahawi - 132/22kV - See Note 9 4 x 80 218 50 80 100 46

5 New Capital District -132/22kV 4 x 80 218 15 20 24 11

320 330 340 495 580 651

1 BAHYA (BHYA) - 132/33kV S/S 2 x 140 127 62 64 70 76 81 81 64

2 New Airport 4 x 80 218 20 25 32 40 18

3 Masdar Green City (only for reserve) 4 x 80 218 10 10 10 10 5

4 Yas Island S1 4 x 80 218 42 46 50 55 60 70 32

5 Raha-B (RBBB) 4 x 80 218 15 60 66 70 80 37

6 Raha-A (RBAA) 4 x 80 218 15 50 55 80 85 39

7 Yas Island S2 4 x 80 218 10 15 20 9

104 140 260 297 348 386

SASN Zone (Firm Capacity 500MVA)

MAHAWI Zone Total (MW)

MAHAWI Zone (Firm Capacity 1000MVA)

BAHIA Zone Total (MW)

BAHIA Zone (Firm Capacity 500MVA)

SASN Zone Total (MW)


Attachment-1


(MVA)S/S Firm

Capacity(MW)2009 2010 2011 2012 2013 2014



1 Mussafah (MOSG) - 220/33kV 3 x 140 255 250 250 250 250 250 250 98

2 GIC - 220/33kV 3 x 140 255 101 120 130 145 167 220 86

3 220kV Mobile for Mafreq F1/ F2 140 N/A 35 35 35 35

4 Shahama East (SHME) - 220/33kV 3 x 140 255 155 155 160 165 170 170 67

5 Samha (SMHG) - 220/33kV 2 x 140 127 44 50 53 60 70 70 55

6 Shamkha (132/33kV S/S in Yr 2012) 3 x 120 218 95 100 130 135 150 150 69

7 ICAD Steel (GHC & Emirates) - 220kV N/A N/A 150 450 450 450 450 450

8 ICAD - 220/33kV 2 x 3 x 100 182+182 110 120 280 350 96

9 ICAD A (ICAA)- 220/33kV 2 x 3 x 100 182+182 50 120 320 88

10 ICAD D (ICDD) - 220/33kV 3 x 100 182 45 90 145 80

11 Ghantoot - 220/33kV 3 x140 255 35 40 50 50 20

12 Al Ghandeer - 220/33kV - See Note 10 3 x120 218 30 36 40 18

13Khalifa Port/Taweelah-A (132/33kV) - See Note 5

3x100 + 2x140 182+127 75 140 207 210 215 220 71

14 Khalifa Industrial Zone - 220/33kV 2 x 3 x 100 182+182 178 294 330 91

905 1,300 1,560 1,913 2,342 2,765

3,502 4,188 4,903 5,786 6,624 7,373

Notes

220/33kV Substations in Abu Dhabi Mainland

Grand Total - Abu Dhabi Islands' & Mainland (MW)

Sub-total (MW)

1) 132/11kV S/S (E15, E14 & E16/02) are planned to be transferred from ADST/E19 Zone to Reem Zone in Yr 2013.

2) 132/11kV S/S (KHPK, W57, Rawdat & ADNEC) are planned to be transferred from E48 Zone to SASN Zone in Yr 2013.

3) 132/11kV S/S (MOS1, MKAA, Nadia) are planned to be transferred from SASN to Mahawi Zone in Yr 2012.

4) Existing 220/33kV S/S (Watbha & Mahawi) are planned to be converted to 132/33kV in Yr 2012 as part of Mahawi Scheme.

9) After the production of draft Transco Statement, New Mahawi substation supply scheme has been revised to 132/33kV (2x120MVA) based on revised ADDC request & same will be reflected in Transco 2010 Statement (2011-2015)

10) After the production of draft Transco Statement, Ghadeer 220/33kV grid station has been cancelled due to their revised demand & the same will be supplied from Ghantoot 220/33kV grid station. This change will be reflected in Transco 2010 Statement (2011-2015)

8) %Utilisation is calculated with respect to Firm Capacity of the Substation

Existing 220/33kV S/S Capacity in Mahawi is 3x140MVA and in Watbha is 2x100MVA+140MVA.

5) Additional Capacity 132/33kV S/S (3x100MVA) @ Taweela A is planned by Year 2011 to feed initial supply of KPIZ.

6) All 132/11kV S/S Capacity 4x40MVA. All 132/22kV S/S Capacity 4x80MVA; unless otherwise mentioned.

7) NL - no load


Attachment-1

S.N Substation Name/CodeCapacity (MVA)

Firm Capacity (MW)

2009 2010 2011 2012 2013 2014%Utilisation

in 2014

1 Sweihan (SWHG) 2x80 + 140 136 81 105 106 108 100 100 74

2 Al-Hayer (AHYG) 3 x 80 136 62 63 66 70 73 90 66

3 Al Foah (AOHG) 3 x 140 230 84 84 88 94 93 95 41

4 Dahma (DHMG) 2x80+80 136 69 116 122 123 115 114 84

5 AAPS (2x100+2x80+2x80) N/A N/A 204 194 194 196 183 181

6 City Centre (CTCG) 3 x 140 230 111 116 133 147 142 140 61

7 Mazyad (MZDG) 2 x 140 123 87 99 111 116 111 114 93

8 Sanaiya (SNYG) 3 x 140 246 157 167 179 165 176 200 81

9 Zakher (ZAKG) 2x140 + 2x90 250 221 214 216 221 206 204 82

10 Al Salamat (SLMG) 3 x 140 258 149 167 207 156 180 183 71

11 Ramah (RMAG) 3 x 140 246 97 96 102 108 107 111 45

12 Al Khazna (KHZG) 2 x 140 123 56 55 58 63 62 65 53

13 Al-Ain South West (ASWG) 3 x 140 246 60 116 161 136 138 150 61

14 Al-Arad (ARDG) 2 x 140 106 83 83 82 86 83 88 83

15 Al-Wagon (AWGG) 2x80 + 140 126 103 56 56 59 56 55 44

16 Umn Al Oush 2 x 140 123 52 60 63 61 62 50

17 Al-Ain Industrial City (AAIC) 3 x 140 246 116 127 130 122 145 59

18 Al-Mukkam 3 x 120 218 80 172 170 78

19 New Grid Station in Al-Ain Power House 3 x 120 182 89 91 50

1,624 1,896 2,069 2,119 2,271 2,358Total Al-Ain Region (MW)

Table 3 220kV Grid Stations Peak Demand Forecast (MW) - Al Ain Region


Attachment-1

S.N Substation Name/Code Capacity (MVA)Firm

Capacity (MW)

2009 2010 2011 2012 2013 2014%Utilisation in

2014

1 Liwa (LWWR) 3 x 100 182 125 130 134 134 134 140 77

2 Madinat Zayed (WMZD) 2x100+1x140 182 80 80 80 80 80 80 44

3 Sila (SLWR) - 3rd 80MVA in Yr 2012 2 x 80 + 80 146 23 23 28 52 70 75 51

4 Mirfa (MRWR) 2 x 100 91 33 40 40 52 52 52 57

5 Ruwais (RWWR) 2 x 140 127 70 70 70 70 82 100 79

6 Central (CNTG)-220/33kV 2 x 140 127 15 15 15 15 15 15 12

7 Liwa West Mobile 80 N/A 16 16 16 16 16 16

8 Ghayathi 2 x 140 127 35 35 40 40 40 40 31

9 Delma Island (132/11kV) 2 x 40 36 10 10 25 25 30 30 83

10 Hameem Mobile (Qasr Al Sarab) 1 x 80 N/A 10 10 25 25

11 Qusahwira 220kV (for Umn Al Zamool Palace) 2 x 80 73 10 20 20 27

12 Sir Baniyas Island 3 x 40 15 15 25

407 419 458 519 579 618

1 Dabiyah 220/33kV 2 x 110 N/A 41 42 43 45 46 48

2 Rumaithy 220/33kV 2 x 50 N/A 20 20 20 20 20 20

3 Buhasa 4 x 140 N/A 79 79 161 198 198 198

4 Bab N/A N/A 94 98 300 525 525 528

Table 4 220kV Grid Stations Peak Demand Forecast (MW)-Western Region

Sub-Total-1 (MW)

220/33kV Substations in Western Region

ADNOC Group


Attachment-1

S.N Substation Name/Code Capacity (MVA)Firm

Capacity (MW)

2009 2010 2011 2012 2013 2014%Utilisation in

2014

5 Asab N/A N/A 44 96 289 293 355 359

6 Qusahwira 220kV (for ADCO 1.8MMBD Proj) N/A N/A 30 30 30

7 Shah Gasco (Near Shah) N/A N/A 298 298

8 Elixier-II Gasco(Near Mirfa P.S) N/A N/A 220 220 220 220

9 Ruwais Industrial Area (Near Ruwais) N/A 98 295 317 822

278 335 1,131 1,626 2,009 2,523

685 754 1,589 2,145 2,588 3,141

Sub-Total-2 (MW)

Total Western (Garbia) Region (MW)


Attachment-1

S.N Grid Station Name/RegionCapacity (MVA)

2009 2010 2011 2012 2013 2014

1 Export to SEWA 350 350

2 Water pumping and auxiliaries load 130 290 290 312 350 356

3 Dhaid 400/220kV 2 x 500 + 500 300 400 500 600 650 700

4 Fujairah (Qidfa) 400/132kV 2 x 500 400 400 400 400 400 400

5 Ras Al Khaimah 400/132kV 3 x 500 220 450 700 760 760 796

6 Ajman 400/132kV 3 x 500 536 591 600

7 Fujairah City 400/132kV 3 x 500 220 250 300

1,400 1,890 1,890 2,828 3,001 3,152

1) 3rd 500MVA transformer at Dhaid is planned to commission before summer Yr 2011.

Grand Total for Northern Emirates (MW)

Note

Table 5. Peak Demand Forecast (MW) in Northern Emirates



AMD/PNDD

ATTACHMENT-2

Electricity Transmission Network Topology for Yr 2009-2014 (Fig.1 to Fig.14)

Fig 1 400kV & 220kV Electrical Power System Topology- Yr 2009(New Assets Based on Current On-Going Projects)

RUWAIS

(RWWR)

SILA

(SLWR)

MIRFA

(MRWR)

MADINAT ZAYED

(WMZD)

BUHASA

(BHSA)

LIWA

(LWWR)

ASAB

220/132kV

2 x 200MVA

2 x 320MVA

4 x 140MVA

220/33kV

80MVA Mobile

2 x 80MVA

2 x 500MVA

2 x 36MVAr

3 x 500MVA

3 x 36MVAr

3 x 100MVA

2 x 100MVA

2x100MVA + 140MVA

SAS AL NAKHEL - SASN

Al QURM (E19)

BEACH (E48)

MUSSAFAH

(MOSG)

CENTRAL

(CNTG)

2 x 140MVA

3 x 500MVA

3 x 36 MVAr

SAMHA

(SMHG)

3 x 140MVA

AL-AIN SOUTH WEST

(AASW)

SALAMAT

(SLMG)

RAMAH

(RMAG)

KHAZNA

(KHZG)

3 x 140MVA

2 x 140MVA

3 x 140MVA

3 x 500 MVA

3 x 36MVAr

3 x 500MVA

3 x 36MVAr

DEWA

DHAID

SHAHAMA

(SHME)

ZAKHER

(ZAKG)

ARAD

(ARDG)

AL WAGON

(AWGG)

MAZIYAD

(MZDG)

SANAIYA

(SNYG)

CITY CENTRE

(CTCG)

AL HAYER

(AHYG)

AL FOAH

(AOHG)

2 x 80MVA + 140MVA

2 x 140MVA2 x 140MVA

3 x 140MVA

3 x 140MVA

2 x 80MVA + 80MVA

3 x 140MVA

3 x 80MVA

3 x 140MVA

TANE

To OMAN

SWEIHAN

(SWHN)

3 x 500MVA

3 x 500MVA

3 x 500MVA

SADIYAT

(SDYT)

FUJAIRAH

(QIDFA)

GIC

3 x 140MVA

GAITHY

(GTHY)

2 x 140MVA

2 x 140MVA

RUMAITHY

(RMTH)

2 x 50MVA

STEEL

SVC

SVC

2 x 500MVA

SAJJA

2 x 200MVA

REEM

ADST

ABU DHABI ISLANDS’ REGION

WESTERN REGION

NORTHERN EMIRATES

Al-AIN REGION

2 x 500MVA

4 x 500MVA

4 x 50 MVAr

2 x 100MVAr

2 x 36MVAr

± 2 x 100MVAr

± 2 x 100 MVAr

DABIYA

(DBYA)

2 x 110MVA

AMD/PNDD, TRANSCO

June 2009

DAHMA (DHMG)

TAWEELA P.S

TAW-BTAW-A

2 x 500 MVA

2x140 MVA

3 x 140MVA

2 x 500MVA

2 x 36 MVAr

3 x 275MVA

2 x 20MVAr

2 x 500MVA

2 x 300MVA

2 x 80MVA + 140MVA

3 x 500MVA

3 x 36MVAr

BAB

220/33kV

140MVA Mobile for

Mafreq F1 & F2

2 x 40MVA

DELMA

Island

ADNOC

2 x 70MVAr

220/33kV

2x 80 MVA Mobiles

(Shamkha Area)

2 x 20MVAr

UMM AL NAR

(UAN)

2 x 250MVAMAHAWI

(MHWG)

3 x 140MVA

WATHBA

(WATH)

2 x 100MVA + 140MVA

FUJAIRAH F1 Ext

FUJAIRAH F1

SHUWEIHAT S1

2 x 140MVA

2 x 140MVA + 2 x 90MVA

2 x 140MVA

ASGS

RAS AL KHAIMAH

(FILA)

3 x 500MVA

2 x 140MVA

ONGS

TOSHIBA

SIEMENS2 x 100MVA

2 x 80MVA

2 x 80MVA

SVC

+ 2 x 90 MVAr

- 2 x 45 MVAr

AL AIN POWER HOUSE

CALOR EMAG

LEGEND

400kV XLPE

220kV XLPE

400kV OHL

220kV OHL

132kV System

Potential New Assets by

Summer Yr 2009

4 x 500MVA

4 x 50MVAr

Khor

Khwair

3 x 140MVATo Qusaidat

In Northern Emirates, New Assets

built by Transco are only shown

RUWAIS

(RWWR)

SILA

(SLWR)

MADINAT ZAYED

(WMZD)

BUHASA

(BHSA)

LIWA

(LWWR)

ASAB

220/132kV

2 x 200MVA

2 x 320MVA

4 x 140MVA

220/33kV

80MVA Mobile

2 x 80MVA

2 x 500MVA

2 x 36MVAr

3 x 500MVA

3 x 36MVAr

3 x 100MVA

2 x 100MVA

2x100MVA + 140MVA


Al QURM (E19)

BEACH (E48)

MUSSAFAH

(MOSG)

CENTRAL

(CNTG)

2 x 140MVA

3 x 500MVA

3 x 36 MVAr

3 x 140MVA

AL-AIN SOUTH WEST

(AASW)

SALAMAT

(SLMG)

RAMAH

(RMAG)

KHAZNA

(KHZG)

3 x 140MVA

2 x 140MVA

3 x 140MVA

3 x 500 MVA

3 x 36MVAr

3 x 500MVA

3 x 36MVAr

DEWA

DHAID

SHAHAMA

(SHME)

ZAKHER

(ZAKG)

ARAD

(ARDG)

AL WAGON

(AWGG)

MAZIYAD

(MZDG)

SANAIYA

(SNYG)

AL HAYER

(AHYG)

AL FOAH

(AOHG)

2 x 80MVA + 140MVA


3 x 140MVA

2 x 80MVA + 80MVA

3 x 140MVA

3 x 80MVA

3 x 140MVA

TANE

To OMAN

SWEIHAN

(SWHN)

3 x 500MVA

3 x 500MVA

3 x 500MVA

SADIYAT

(SDYT)

FUJAIRAH

(QIDFA)

GIC

3 x 140MVA

2 x 140MVA

2 x 140MVA

RUMAITHY

(RMTH)

2 x 50MVA

STEEL

SVC

SVC

2 x 500MVA

SAJJA

2 x 200MVA

REEM

ADST


WESTERN REGION

NORTHERN EMIRATES

Al-AIN REGION

2 x 500MVA

4 x 500MVA

4 x 50 MVAr

4 x 500MVA

4 x 50MVAr

2 x 100MVAr

2 x 36MVAr

± 2 x 100MVAr

± 2 x 100 MVAr

DABIYA

(DBYA)

2 x 110MVA

DAHMA (DHMG)

TAWEELA P.S

TAW-BTAW-A

2 x 500 MVA

2x140 MVA

3 x 140MVA

2 x 500MVA

2 x 36 MVAr

3 x 275MVA

2 x 20MVAr

2 x 500MVA

2 x 300MVA

2 x 80MVA + 140MVA

3 x 500MVA

3 x 36MVAr

BAB

220/33kV

140MVA Mobile for

Mafreq F1 & F2

2 x 40MVADELMA

Island

ADNOC

2 x 70MVAr

2 x 20MVAr

UMM AL NAR

(UAN)

2 x 250MVA

FUJAIRAH F1

SHUWEIHAT S1

2 x 140MVA

2 x 140MVA + 2 x 90MVA

2 x 140MVA

ASGS

AL-AIN

INDUSTRIAL CITY

(AAIC)

3 x 140MVA

UMM Al OUSH

2 x 140MVA

RAS AL KHAIMAH

(FILA)

3 x 500MVA

FUJAIRAH F1 Ext + F2

2 x 50MVAr

EMAL

320MVA

MAHAWI

(MHWG)

3 x 140MVA

WATHBA

(WATH)

2 x 100MVA + 140MVA

AL AIN POWER HOUSE

TOSHIBA

SIEMENS2 x 100MVA

2 x 80MVA

2 x 80MVA

SVC

+ 2 x 90 MVAr

- 2 x 45 MVAr

CALOR EMAG

CITY CENTRE

(CTCG)

3 x 140MVA

220/33kV

2x 80 MVA Mobiles

(Shamkha Area)

Fig 2 400kV & 220kV Electrical Power System Topology- Yr 2010(New Assets Based On Current On-Going Projects)

AMD/PNDD, TRANSCO

June 2009

2 x 70MVAr

MIRFA

(MRWR)

2 x 140MVA

ONGS

SAMHA

(SMHG)

GAITHY

(GTHY)

LEGEND

400kV XLPE

220kV XLPE

400kV OHL

220kV OHL

132kV System


Summer Yr 2010

Khor

Khwair

3 x 140MVA

To RAK MainTo Qusaidat



RUWAIS

(RWWR)

SILA

(SLWR)

MIRFA + Al Zawra

(MRWR)

MADINAT ZAYED

(WMZD)

BUHASA

(BHSA)

LIWA

(LWWR)

2 x 320MVA

4 x 140MVA

220/33kV

80MVA Mobile

2 x 80MVA

2 x 500MVA

2 x 36MVAr

3 x 500MVA

3 x 36MVAr

3 x 100MVA

2 x 100MVA

2x100MVA + 140MVA


Al QURM (E19)

BEACH (E48)

MUSSAFAH

(MOSG)

CENTRAL

(CNTG)

2 x 140MVA

3 x 500MVA

3 x 36 MVAr

3 x 140MVA

AL-AIN SOUTH WEST

(AASW)

SALAMAT

(SLMG)

RAMAH

(RMAG)

KHAZNA

(KHZG)

3 x 140MVA

2 x 140MVA

3 x 140MVA

3 x 500 MVA

3 x 36MVAr

3 x 500MVA

3 x 36MVAr

DEWA

DHAID

SHAHAMA

(SHME)

ZAKHER

(ZAKG)

ARAD

(ARDG)

AL WAGON

(AWGG)

MAZIYAD

(MZDG)

SANAIYA

(SNYG)

AL HAYER

(AHYG)

AL FOAH

(AOHG)

2 x 80MVA + 140MVA


3 x 140MVA

2 x 80MVA + 80MVA

3 x 140MVA

3 x 80MVA

3 x 140MVA

TANE

To OMAN

SWEIHAN

(SWHN)

3 x 500MVA

3 x 500MVA

3 x 500MVA

SADIYAT

(SDYT)

RAS AL KHAIMAH

(FILA)

FUJAIRAH

(QIDFA)

GIC

3 x 140MVA

2 x 140MVA

2 x 140MVA

RUMAITHY

(RMTH)

BAHIA

ICAD

2 x 50MVA

3 x 500MVA

STEEL

SVC

SVC

UMM Al OUSH

2 x 500MVA

SAJJA

2 x 140MVA

2 x 200MVA

REEM

ADST

2 x 500MVA

2 x 50MVAr


WESTERN REGION

NORTHERN EMIRATES

Al-AIN REGION

2 x 500MVA

4 x 500MVA

4 x 50 MVAr

4 x 500MVA

4 x 50MVAr

3 x 500MVA

2 x 100MVAr

2 x 36MVAr

± 2 x 100MVAr

± 2 x 100 MVAr

DABIYA

(DBYA)

2 x 110MVA

2 x 150MVA

DAHMA (DHMG)

TAWEELA P.S

TAW-BTAW-A

2 x 500 MVA

2x140 MVA

3 x 140MVA

2 x 500MVA

2 x 36 MVAr

3 x 275MVA

2 x 20MVAr

2 x 50MVAr

3 x 500MVA

3 x 300MVA

AL-AIN

INDUSTRIAL CITY

(AAIC)

3 x 140MVA

2 x 80MVA + 140MVA

3 x 500MVA

3 x 36MVAr

BAB

2 x (3 x 100MVA)

220/33kV

140MVA Mobile for

Mafreq F1 & F2

2 x 150MVAr

2 x 40MVADELMA

Island

3x 100 MVA

ADNOC

2 x 70MVAr

2 x 20MVAr

SHUWEIHAT S1 & S2

2 x 140MVA

2 x 70MVAr


2 x 140MVA + 2 x 90MVA

UMM AL NAR

(UAN)

2 x 250MVA

ASAB

220/132kV

2 x 200MVA

220/33kV

80MVA Mobile

(Hameem area)

2 x 140MVA

ASGS

GHANTOOT

3x140MVA

EMAL

320MVA

MAHAWI

(MHWG)

3 x 140MVA

WATHBA

(WATH)

2 x 100MVA + 140MVA

To Ghuwaifat

GCC Interconnection

KSA

SILA-400

Gasco

Elixier-II

CITY CENTRE

(CTCG)

3 x 140MVA

TOSHIBA

SIEMENS2 x 100MVA

2 x 80MVA

2 x 80MVA

SVC

+ 2 x 90 MVAr

- 2 x 45 MVAr

CALOR EMAG

AL AIN POWER HOUSE

AMD/PNDD, TRANSCO

June 2009Fig 3 400kV & 220kV Electrical Power System Topology- Yr 2011

(New Assets Based On Current On-Going Projects)

220/33kV

3 x 80 MVA Mobiles

(Shamkha Area)

2 x 140MVA

ONGS

SAMHA

(SMHG)

GAITHY

(GTHY)

LEGEND

400kV XLPE

220kV XLPE

400kV OHL

220kV OHL

132kV System


Summer Yr 2011

Khor

Khwair

3 x 140MVA




RUWAIS

(RWWR)

SILA

(SLWR)

MIRFA + Al Zawra

(MRWR)

MADINAT ZAYED

(WMZD)

BUHASA

(BHSA)

LIWA

(LWWR)

2 x 320MVA

4 x 140MVA

220/33kV

80MVA Mobile

2x80MVA + 80MVA

2 x 500MVA

2 x 36MVAr

3 x 500MVA

3 x 36MVAr

3 x 100MVA

2 x 100MVA

2x100MVA + 140MVA


Al QURM (E19)

BEACH (E48)

MUSSAFAH (MOSG)

CENTRAL

(CNTG)

2 x 140MVA

3 x 500MVA

3 x 36 MVAr

MAHAWI

SAMHA

2x140MVA

3 x 140MVA

AL-AIN SOUTH WEST

(AASW)

SALAMAT

(SLMG)

RAMAH

(RMAG)

KHAZNA

(KHZG)

3 x 140MVA

2 x 140MVA

3 x 140MVA

3 x 500 MVA

3 x 36MVAr

3 x 500MVA

3 x 36MVAr

DEWA

DHAID

SHAHAMA

(SHME)

ZAKHER

(ZAKG)

ARAD

(ARDG)

AL WAGON

(AWGG)

MAZIYAD

(MZDG)

SANAIYA

(SNYG)

CITY CENTRE

(CTCG)

AL HAYER

(AHYG)

AL FOAH

(AOHG)

2 x 80MVA + 140MVA


3 x 140MVA

3 x 140MVA

2 x 80MVA + 80MVA

3 x 140MVA

3 x 80MVA

3 x 140MVA

TANE

To OMAN

SWEIHAN

(SWHN)

3 x 500MVA

3 x 500MVA

3 x 500MVA

RAS AL KHAIMAH

(FILA)

FUJAIRAH

(QIDFA)

GIC

3 x 140MVA

2 x 140MVA

2 x 140MVA

RUMAITHY

(RMTH)

BAHIA

ICAD

2 x 50MVA

3 x 500MVA

STEEL

SVC

SVC

UMM Al OUSH

2 x 500MVA

SAJJA

2 x 140MVA

2 x 200MVA

REEM

ADST

2 x 500MVA

2 x 50MVAr


WESTERN REGION

NORTHERN EMIRATES

Al-AIN REGION

2 x 500MVA

4 x 500MVA

4 x 50 MVAr

4 x 500MVA

4 x 50MVAr

3 x 500MVA

2 x 100MVAr

± 2 x 100MVAr

± 2 x 100 MVAr

DABIYA

(DBYA)

2 x 110MVA

2 x 150MVA

DAHMA (DHMG)

TAWEELA P.S

TAW-BTAW-A

2 x 500 MVA

2x140 MVA

EMAL

3 x 140MVA

2 x 500MVA

2 x 36 MVAr

KHALIFA

INDUSTRIAL ZONE (KIZ)

3 x 275MVA

AJMAN

2 x 20MVAr

2 x 50MVAr

NEW FUJAIRAH

3 x 500MVA

3 x 500MVA

3 x 500MVA

3 x 300MVA

GHANTOOT

3x140MVA

2 x 320MVA

AL-AIN

INDUSTRIAL CITY

(AAIC)

3 x 140MVA

AL-MUKKAM

3 x 120MVA

2 x 80MVA + 140MVA

3 x 500MVA

3 x 36MVAr

BAB

(Indicative Only)

2 x (3 x 100MVA)

3 x 100MVA

220/33kV

140MVA Mobile for

Mafreq F1 & F2

2 x 40MVADELMA

Island

3x100 MVA

ADNOC

2 x 70MVAr

ICAD A

ICAD D

2 x (3 x 100MVA)

2 x 20MVAr

SHUWEIHAT S1 & S2

Masdar Shams


2 x 150MVAr

UMM AL NAR

(UAN)


3 x 50MVAr

2 x 140MVA + 2 x 90MVA

ASAB

220/132kV

2 x 200MVA

220/33kV

80MVA Mobile

(Hameem area)

QUSAHWIRA

2 x 140MVA

ASGS 2 x 80MVA

To Ghuwaifat

GCC Interconnection

KSA

SILA-400

2 x 500MVA

TAWEELA-C

3 x 40MVA

Sir Baniyas

Island

TOSHIBA

SIEMENS2 x 100MVA

2 x 80MVA

2 x 80MVA

SVC

+ 2 x 90 MVAr

- 2 x 45 MVAr

CALOR EMAG

AL AIN POWER HOUSE

AMD/PNDD, TRANSCO

June 2009 Fig 4 400kV & 220kV Electrical Power System Topology- Yr 2012

(New Assets Based on Current On-Going Projects)

SHAMKHA

2 x 500 MVA

GHADEER

(Indicative Only)

3x120MVA

2 x 140MVA

ONGS

SADIYAT

(SDYT)

2 x (3 x 100MVA)

GAITHY

(GTHY)

LEGEND

400kV XLPE

220kV XLPE

400kV OHL

220kV OHL

132kV System


Summer Yr 2012

3 x 120 MVA

2 x 36MVAr

Close Open

3 x 500MVA

2 x 70MVAr

Gasco

Elixier-II

2 x 150MVAr

Khor Khwair

132/33kV

3 x 140MVA

2 x 100MVA

Al Hayl

132/33kV

Sudah Port

132/33kV

3 x 100MVA

2 x 120MVA

2 x 120MVA

Tawyeen

132/33kV

Khorfakkan

132/33kV




RUWAIS

(RWWR)

SILA

(SLWR)

MIRFA + Al Zawra

(MRWR)

MADINAT ZAYED

(WMZD)

BUHASA

(BHSA)

LIWA

(LWWR)

2 x 320MVA

4 x 140MVA

220/33kV

80MVA Mobile

3 x 80MVA

2 x 500MVA

2 x 36MVAr

3 x 500MVA

3 x 36MVAr

3 x 100MVA

2 x 100MVA

2x100MVA + 140MVA


Al QURM (E19)

BEACH (E48)

MUSSAFAH

(MOSG)

CENTRAL

(CNTG)

2 x 140MVA

3 x 500MVA

3 x 36 MVAr

MAHAWI

SAMHA

2x140MVA

3 x 140MVA

AL-AIN SOUTH WEST

(AASW)

SALAMAT

(SLMG)

RAMAH

(RMAG)

KHAZNA

(KHZG)

3 x 140MVA

2 x 140MVA

3 x 140MVA

3 x 500 MVA

3 x 36MVAr

3 x 500MVA

3 x 36MVAr

DEWA

DHAID

SHAHAMA

(SHME)

ZAKHER

(ZAKG)

ARAD

(ARDG)

AL WAGON

(AWGG)

MAZIYAD

(MZDG)

SANAIYA

(SNYG)

AL HAYER

(AHYG)

AL FOAH

(AOHG)

2 x 80MVA + 140MVA


3 x 140MVA

2 x 80MVA + 80MVA

3 x 140MVA

3 x 80MVA

3 x 140MVA

TANE

To OMAN

SWEIHAN

(SWHN)

3 x 500MVA

3 x 500MVA

3 x 500MVA

RAS AL KHAIMAH

(FILA)

FUJAIRAH

(QIDFA)

GIC

3 x 140MVA

2 x 140MVA

2 x 140MVA

RUMAITHY

(RMTH)

BAHIA

ICAD

2 x 50MVA

3 x 500MVA

STEEL

SVC

SVC

UMM Al OUSH

2 x 500MVA

SAJJA

2 x 140MVA

2 x 200MVA

REEM

ADST

2 x 500MVA

2 x 50MVAr


WESTERN REGION

NORTHERN EMIRATES

Al-AIN REGION

2 x 500MVA

4 x 500MVA

4 x 50 MVAr

4 x 500MVA

4 x 50MVAr

3 x 500MVA

2 x 100MVAr

± 2 x 100MVAr

± 2 x 100 MVAr

DABIYA

(DBYA)

2 x 110MVA

2 x 150MVA

DAHMA (DHMG)

TAWEELA P.S

TAW-BTAW-A

2 x 500 MVA

2x140 MVA

EMAL

3 x 140MVA

2 x 500MVA

2 x 36 MVAr

KHALIFA


3 x 275MVA

AJMAN

2 x 20MVAr

2 x 50MVAr

NEW FUJAIRAH

3 x 500MVA

3 x 500MVA

3 x 500MVA

3 x 300MVA

AL-AIN

INDUSTRIAL CITY

(AAIC)

3 x 140MVA

AL-MUKKAM

3 x 120MVA

2 x 80MVA + 140MVA

3 x 500MVA

3 x 36MVAr

BAB

2 x (3 x 100MVA)

2 x (3 x 100MVA)

3 x 100MVA

3 x 150MVAr

2 x 40MVA DELMA

Island

3x100 MVA

ADNOC

ONGS

2 x 140MVA

2 x 70MVAr

ICAD A

ICAD D

2 x 3 x 100MVA

2 x 20MVAr

SHUWEIHAT S1 & S2

Masdar Shams


3 x 150MVAr

3 x 500MVA

3 x 500MVA

3 x 50MVAr

2 x 140MVA + 2 x 90MVA

SHAH-SGD

ASAB

220/132kV

2 x 200MVA

220/33kV

80MVA Mobile

(Hameem area)

QUSAHWIRA

2 x 140MVA

ASGS 2 x 80MVA

To Ghuwaifat

GCC Interconnection

KSA

SILA-400

2 x 500MVA

TAWEELA-C

CITY CENTRE

(CTCG)

3 x 140MVA

3 x 120MVA

New 220kV G.S in

AAPS

SHAMKHA

2 x 320MVA

3 x 40MVA

Sir Baniyas

Island

TOSHIBA

SIEMENS2 x 100MVA

2 x 80MVA

2 x 80MVA

SVC

+ 2 x 90 MVAr

- 2 x 45 MVAr

CALOR EMAG

AL AIN POWER HOUSE

LEGEND

400kV XLPE

220kV XLPE

400kV OHL

220kV OHL

132kV System


Summer Yr 2013

Fig 5 400kV & 220kV Electrical Power System Topology- Yr 2013(Indicative Only)

AMD/PNDD, TRANSCO

June 2009

2 x 500 MVA

SADIYAT

(SDYT)

GAITHY

(GTHY)

3 x 120 MVA

2 x 150MVAr

150MVAr

OpenClose

GHANTOOT

3x140MVA

3x120MVA

GHADEER

Gasco

Elixier-II

2 x 70MVAr

3 x 500MVA

Khor

Khwair

3 x 140MVA

RUWAIS

(Indicative Only)

2 x 100MVA

Al Hayl

132/33kV

Sudah Port

132/33kV

3 x 100MVA

2 x 120MVA

2 x 120MVA

Tawyeen

132/33kV

Khorfakkan

132/33kV

2 x 120MVA




Quad Booster

RUWAIS

(RWWR)

SILA

(SLWR)

MADINAT ZAYED

(WMZD)

BUHASA

(BHSA)

LIWA

(LWWR)

2 x 320MVA

4 x 140MVA

220/33kV

80MVA Mobile

3 x 80MVA

2 x 500MVA

2 x 36MVAr

3 x 500MVA

3 x 36MVAr

3 x 100MVA

2 x 100MVA

2x100MVA + 140MVA


Al QURM (E19)

BEACH (E48)

MUSSAFAH

(MOSG)

CENTRAL

(CNTG)

2 x 140MVA

3 x 500MVA

3 x 36 MVAr

MAHAWI

SAMHA

2x140MVA

3 x 140MVA

AL-AIN SOUTH WEST

(AASW)

SALAMAT

(SLMG)

RAMAH

(RMAG)

KHAZNA

(KHZG)

3 x 140MVA

2 x 140MVA

3 x 140MVA

3 x 500 MVA

3 x 36MVAr

3 x 500MVA

3 x 36MVAr

DEWA

DHAID

SHAHAMA

(SHME)

ZAKHER

(ZAKG)

ARAD

(ARDG)

AL WAGON

(AWGG)

MAZIYAD

(MZDG)

SANAIYA

(SNYG)

AL HAYER

(AHYG)

AL FOAH

(AOHG)

2 x 80MVA + 140MVA


3 x 140MVA

2 x 80MVA + 80MVA

3 x 140MVA

3 x 80MVA

3 x 140MVA

TANE

To OMAN

SWEIHAN

(SWHN)

3 x 500MVA

3 x 500MVA

3 x 500MVA

RAS AL KHAIMAH

(FILA)

FUJAIRAH

(QIDFA)

GIC

3 x 140MVA

2 x 140MVA

2 x 140MVA

RUMAITHY

(RMTH)

BAHIA

ICAD

2 x 50MVA

3 x 500MVA

STEEL

SVC

SVC

UMM Al OUSH

2 x 500MVA

SAJJA

2 x 140MVA

2 x 200MVA

REEM

ADST

2 x 500MVA

2 x 50MVAr


WESTERN REGION

NORTHERN EMIRATES

Al-AIN REGION

2 x 500MVA

4 x 500MVA

4 x 50 MVAr

4 x 500MVA

4 x 50MVAr

3 x 500MVA

2 x 100MVAr

± 2 x 100MVAr

± 2 x 100 MVAr

DABIYA

(DBYA)

2 x 110MVA

2 x 150MVA

DAHMA (DHMG)

TAWEELA P.S

TAW-BTAW-A

2 x 500 MVA

2x140 MVA

EMAL

3 x 140MVA

2 x 500MVA

2 x 36 MVAr

KHALIFA


3 x 275MVA

AJMAN

2 x 20MVAr

2 x 50MVAr

NEW FUJAIRAH

3 x 500MVA

3 x 500MVA

3 x 500MVA

3 x 300MVA

AL-AIN

INDUSTRIAL CITY

(AAIC)

3 x 140MVA

AL-MAQAM

3 x 120MVA

2 x 80MVA + 140MVA

3 x 500MVA

3 x 36MVAr

BAB

2 x (3 x 100MVA)

2 x (3 x 100MVA)

3 x 100MVA

3 x 150MVAr

2 x 40MVA DELMA

Island

3x100 MVA

ADNOC

ONGS

2 x 140MVA

2 x 70MVAr

ICAD A

ICAD D

2 x 3 x 100MVA

2 x 20MVAr

SHUWEIHAT S1 & S2

Masdar Shams


3 x 150 MVAr

3 x 500MVA

3 x 500MVA

3 x 50MVAr

2 x 140MVA + 2 x 90MVA

SHAH-SGD

ASAB

220/132kV

2 x 200MVA

220/33kV

80MVA Mobile

(Hameem area)

QUSAHWIRA

2 x 140MVA

ASGS 2 x 80MVA

To Ghuwaifat

GCC Interconnection

KSA

SILA-400

2 x 500MVA

TAWEELA-C

CITY CENTRE

(CTCG)

3 x 140MVA

3 x 120MVA

SHAMKHA

2 x 320MVA

3 x 40MVA

Sir Baniyas

Island

TOSHIBA

SIEMENS2 x 100MVA

2 x 80MVA

2 x 80MVA

SVC

+ 2 x 90 MVAr

- 2 x 45 MVAr

CALOR EMAG

AL AIN POWER HOUSE

LEGEND

400kV XLPE

220kV XLPE

400kV OHL

220kV OHL

132kV System

Fig 6 400kV & 220kV Electrical Power System Topology- Yr 2014(Indicative Only)

AMD/PNDD, TRANSCO

June 2009

2 x 500 MVA

Quad Booster

SADIYAT

(SDYT)

GAITHY

(GTHY)

3 x 120 MVA

2 x 150MVAr

1 x 150MVAr

New 220kV G.S in

AAPS

OpenClose

MIRFA + Al Zawra

(MRWR)

Gasco

Elixier-II

2 x 70MVAr

3x140MVA

3x120MVA

GHANTOOT

GHADEER

3 x 500MVA

Khor

Khwair

3 x 140MVA

2 x 100MVA

Al Hayl

132/33kV

Sudah Port

132/33kV

3 x 100MVA

Tawyeen

132/33kV

Khorfakkan

132/33kV

2 x 120MVA

2 x 120MVA

To Qusaidat To RAK Main



RUWAIS

(RWWR)

SILA

(SLWR)

MIRFA + Al Zawra

(MRWR)

MADINAT ZAYED

(WMZD)

BUHASA

(BHSA)

LIWA

(LWWR)

2 x 320MVA

4 x 140MVA

220/33kV

80MVA Mobile

2 x 500MVA

2 x 36MVAr

3 x 500MVA

3 x 36MVAr

3 x 100MVA

2 x 100MVA

2x100MVA + 140MVA


Al QURM (E19)

BEACH (E48)

MUSSAFAH

(MOSG)

CENTRAL

(CNTG)

2 x 140MVA

3 x 500MVA

3 x 36 MVAr

MAHAWI

SAMHA

2x140MVA

3 x 140MVA

AL-AIN SOUTH WEST

(AASW)

SALAMAT

(SLMG)

RAMAH

(RMAG)

KHAZNA

(KHZG)

3 x 140MVA

2 x 140MVA

3 x 140MVA

3 x 500 MVA

3 x 36MVAr

3 x 500MVA

3 x 36MVAr

DEWA

DHAID

SHAHAMA

(SHME)

ZAKHER

(ZAKG)

ARAD

(ARDG)

AL WAGON

(AWGG)

MAZIYAD

(MZDG)

SANAIYA

(SNYG)

AL HAYER

(AHYG)

AL FOAH

(AOHG)

2 x 80MVA + 140MVA


3 x 140MVA

2 x 80MVA + 80MVA

3 x 140MVA

3 x 80MVA

3 x 140MVA

TANE

To OMAN

SWEIHAN

(SWHN)

3 x 500MVA

3 x 500MVA

3 x 500MVA

RAS AL KHAIMAH

(FILA)

FUJAIRAH

(QIDFA)

GIC

3 x 140MVA

2 x 140MVA

2 x 140MVA

RUMAITHY

(RMTH)

BAHIA

ICAD

2 x 50MVA

3 x 500MVA

STEEL

SVC

SVC

UMM Al OUSH

2 x 500MVA

SAJJA

2 x 140MVA

2 x 200MVA

REEM

ADST

2 x 500MVA

2 x 50MVAr


WESTERN REGION

NORTHERN EMIRATES

Al-AIN REGION

2 x 500MVA

4 x 500MVA

4 x 50 MVAr

4 x 500MVA

4 x 50MVAr

3 x 500MVA

2 x 100MVAr

± 2 x 100MVAr

± 2 x 100 MVAr

DABIYA

(DBYA)

2 x 110MVA

2 x 150MVA

DAHMA (DHMG)

TAWEELA P.S

TAW-BTAW-A

2 x 500 MVA

2x140 MVA

EMAL

3 x 140MVA

2 x 500MVA

2 x 36 MVAr

KHALIFA


3 x 275MVA

AJMAN

2 x 20MVAr

2 x 50MVAr

NEW FUJAIRAH

3 x 500MVA

3 x 500MVA

3 x 500MVA

3 x 300MVA

AL-AIN

INDUSTRIAL CITY

(AAIC)

3 x 140MVA

AL-MUKKAM

3 x 120MVA

2 x 80MVA + 140MVA

3 x 500MVA

3 x 36MVAr

BAB

2 x (3 x 100MVA)

2 x (3 x 100MVA)

3 x 100MVA

3 x 150MVAr

2 x 40MVA DELMA

Island

3x100 MVA

ADNOC

ONGS

2 x 140MVA

2 x 70MVAr

ICAD A

ICAD D

2 x 3 x 100MVA

2 x 20MVAr

SHUWEIHAT S1 & S2

Masdar Shams


3 x 150MVAr

3 x 500MVA

3 x 500MVA

3 x 50MVAr

2 x 140MVA + 2 x 90MVA

SHAH-SGD

ASAB

220/132kV

2 x 200MVA

220/33kV

80MVA Mobile

(Hameem area)

QUSAHWIRA

2 x 140MVA

ASGS 2 x 80MVA

To Ghuwaifat

GCC Interconnection

KSA

SILA-400

2 x 500MVA

TAWEELA-C

CITY CENTRE

(CTCG)

3 x 140MVA

3 x 120MVA

New 220kV G.S in

AAPS

SHAMKHA

2 x 320MVA

3 x 40MVA

Sir Baniyas

Island

TOSHIBA

SIEMENS2 x 100MVA

2 x 80MVA

2 x 80MVA

SVC

+ 2 x 90 MVAr

- 2 x 45 MVAr

CALOR EMAG

AL AIN POWER HOUSE

LEGEND

400kV XLPE

220kV XLPE

400kV OHL

220kV OHL

132kV System

Potential New Assets

Fig 13 400kV & 220kV Electrical Power System Topology- Yr 2014(New Assets Consolidated From Yr 2009 To Yr 2014)

AMD/PNDD, TRANSCO

June 2009

2 x 500 MVA

SADIYAT

(SDYT)

GAITHY

(GTHY)

3 x 120 MVA

2 x 150MVAr

150MVAr

OpenClose

GHANTOOT

3x140MVA

3x120MVA

GHADEER

Gasco

Elixier-II

2 x 70MVAr

3 x 500MVA

Khor

Khwair

3 x 140MVA

RUWAIS

(Indicative Only)

2 x 100MVA

Al Hayl

132/33kV

Sudah Port

132/33kV

3 x 100MVA

2 x 120MVA

2 x 120MVA

Tawyeen

132/33kV

Khorfakkan

132/33kV

2 x 120MVA




2x80MVA + 80MVA

Quad Booster

Fig. 7 132kV Electrical Power System Topology- Yr 2009

(New Assets Based on Current On-Going Projects)

Abu Dhabi IslandE14 (PORT)

E15 -Tourist Club

(TCLB)E09-Firdous

(FRDS)

E11-Zayed

2nd St (ZYD2)

E08-Capital

Gardens (CPGR)

W01-Market 1

(MKT1)

W02-Market

(MRKT)

4 x 40MVA

E04-Madinat Zayed

(MDZD)

4 x 40MVA

4 x 40MVA

3 x 40MVA

4 x 40MVA

4 x 40MVA

4 x 40MVA

4 x 40MVA

E16-(CLNS)

4 x 40MVA

3 x 500MVA ADST-4

00kV

W13-Jazira

Hospital

(JZRH)

W09-Khalidya

(KLDY)

4 x 40MVA

4 x 40MVA

Marina Mall

(MRML)

W16-Bateen

(BATN)

1 x 15MVAr

1 x 20MVAr4 x 40MVA

4 x 40MVA

4 x

40

MV

A

Conference Palace

(CONH)

4 x 40MVA

E25-Higher Tech.

College (HTCO)

4 x 40MVAW17-Bateen Bus

Station (BSTN)

4 x 40MVA

E18- Al Salam

(ALSM)

3 x 40MVA

E18/02-Falah

(FLAH)4 x

40

MV

A

W24-Mushrif

(MSHF)

4 x 40MVA

W47-Arabian

Gulf (GLFA)

4 x 40MVA

W59-Embassy

(EMBS)

4 x 40MVA2 x 20MVAr

4 x 40MVA

3 x 500MVA

4 x

40

MV

A

Khalifa Park

(KHPK)

3 x 500MVA

132kV

Al-Q

urm (E19)-400kV

132kV

132kV

Beach (E48)-400kV

LEGEND

132/11kV 132/33kV 132/22kV

AMD/PNDD, TRANSCO

June 2009

Potential New Assets by Summer Yr 2009

2 x 120MVA

YAS S1

4 x 80MVA

Yas Island

SLTC

S18

(JSRN)

3 x 40MVA

4 x 40MVA

2 x 500MVA

Mussafah

(MOS1)

4 x 40MVA

Abu Dhabi MainlandTaweela P.S.

TAW-A 132kVSASN-400kV

132kV

2 x 500MVA

UAN-132kV

2 x 250MVA

4 x 40MVA

Khalifa A

(MKAA)

4 x 40MVA

Khalifa B

(MKBB)

NADIA

(Old Air Port)

4 x 40MVA

Bahia-Old

(BHYA)

2 x 140MVA

N.O point

1 x 20MVAr

2 x 140MVA

132 kV

OHL

132 kV

Cable

S1

4 x 80MVA

Al Reem Island

T1 132kV

4 x 500MVA

4 x 50MVAr

Reem-400kV

Fig. 8 132kV Electrical Power System Topology- Yr 2010(New Assets based on Current On-Going Projects)


E15 -Tourist Club

(TCLB)E09-Firdous

(FRDS)

E11-Zayed

2nd St (ZYD2)

E08-Capital

Gardens (CPGR)

W01-Market 1

(MKT1)

W02-Market

(MRKT)

4 x 40MVA

E04-Madinat Zayed

(MDZD)

4 x 40MVA

4 x 40MVA

4 x 40MVA

4 x 40MVA

4 x 40MVA

4 x 40MVA

4 x 40MVA

E16-(CLNS)

4 x 40MVA

3 x 500MVA ADST-4

00kV

W13-Jazira

Hospital

(JZRH)

W09-Khalidya

(KLDY)

4 x 40MVA

4 x 40MVA

Marina Mall

(MRML)

W16-Bateen

(BATN)

1 x 15MVAr

1 x 20MVAr4 x 40MVA

4 x 40MVA

4 x

40

MV

A

Conference Palace

(CONH)

4 x 40MVA

E25-Higher Tech.

College (HTCO)


Station (BSTN)

4 x 40MVA

E18- Al Salam

(ALSM)

3 x 40MVA

E18/02-Falah

(FLAH)4 x

40

MV

A

W24-Mushrif

(MSHF)

4 x 40MVA

W47-Arabian

Gulf (GLFA)

4 x 40MVA

W59-Embassy

(EMBS)

4 x 40MVA2 x 20MVAr

4 x 40MVA

3 x 500MVA

4 x

40

MV

A

Khalifa Park

(KHPK)

3 x 500MVA

132kV

Al-Q

urm (E19)-4

00kV

132kV

132kV

Beach (E48)-4

00kV

LEGEND

132/11kV 132/33kV 132/22kV

AMD/PNDD, TRANSCO

June 2009


2 x 120MVA

E40-Danet

(DANT)

4 x 40MVA

W41-Green

Head (GRHD)

4 x 40MVA

4 x 40MVA

E01

(SOUQ)

T2

4 x 80MVA

S1

4 x 80MVA

R1

4 x 80MVA

Al Reem Island

4 x 80MVA

T1

Sadiyat Island

YAS S1

4 x 80MVA

Yas Island

132kV

4 x 80MVA

4 x 80MVA

SDCC

4 x 80MVA

SDDDSDBB

SLTC

S18

(JSRN)

3 x 40MVA

4 x 40MVA

2 x 500MVA

Mussafah

(MOS1)

4 x 40MVA

Abu Dhabi Mainland

SASN-400kV

132kV

UAN-132kV

2 x 250MVA

4 x 40MVA

Khalifa A

(MKAA)

4 x 40MVA

Khalifa B

(MKBB)

Raha-B

(RBBB)

4 x 80MVA

NADIA

(Old Air Port)

4 x 40MVA

Bahia-Old

(BHYA)

2 x 140MVA

4 x 80MVA

Raha-A

(RBAA)

N.O point

4 x 500MVA

4 x 50MVAr

SDYT

Sadiyat-400kV

132kV

4 x 80MVA

1 x 20MVAr

Taweela P.S.

TAW-A 132kV

2 x 500MVA

2 x 140MVA

132 kV

OHL

132 kV

Cable

4 x 500MVA

4 x 50MVAr

Reem-400kV

Fig. 9 132kV Electrical Power System Topology- Yr 2011(New Assets Based on Current On-Going Projects)


E15 -Tourist Club

(TCLB)E09-Firdous

(FRDS)

E11-Zayed

2nd St (ZYD2)

E08-Capital

Gardens (CPGR)

W01-Market 1

(MKT1)

W02-Market

(MRKT)

4 x 40MVA

E04-Madinat Zayed

(MDZD)

4 x 40MVA

4 x 40MVA

4 x 40MVA

4 x 40MVA

4 x 40MVA

4 x 40MVA

4 x 40MVA

E16-(CLNS)

4 x 40MVA

3 x 500MVA ADST-4

00kV

W13-Jazira

Hospital

(JZRH)

W09-Khalidya

(KLDY)

4 x 40MVA

4 x 40MVA

Marina Mall

(MRML)

W16-Bateen

(BATN)

1 x 15MVAr

1 x 20MVAr4 x 40MVA

4 x 40MVA

4 x

40

MV

A

Conference Palace

(CONH)

4 x 40MVA

E25-Higher Tech.

College (HTCO)


Station (BSTN)

4 x 40MVA

E18- Al Salam

(ALSM)

3 x 40MVA

E18/02-Falah

(FLAH)4 x

40

MV

A

W24-Mushrif

(MSHF)

4 x 40MVA

W47-Arabian

Gulf (GLFA)

4 x 40MVA

W59-Embassy

(EMBS)

4 x 40MVA2 x 20MVAr

4 x 40MVA

3 x 500MVA

4 x

40

MV

A

Khalifa Park

(KHPK)

3 x 500MVA

132kV

Al-Q

urm (E19)-4

00kV

132kV

132kV

Beach (E48)-4

00kV

LEGEND

132/11kV 132/33kV 132/22kV

AMD/PNDD, TRANSCO

June 2009


2 x 120MVA

E40-Danet

(DANT)

ADNEC

W57-Zayed

Sports City

4 x 40MVA

4 x 40MVA

4 x 40MVA

W41-Green

Head (GRHD)

4 x 40MVA

4 x 40MVA

E01

(SOUQ)

T2

4 x 80MVA

S1

4 x 80MVA

R1

4 x 80MVA

Al Reem Island

4 x 80MVA

T1

Sadiyat Island

YAS S1

4 x 80MVA

Yas Island

132kV

4 x 500MVA

4 x 50MVAr

Reem-400kV

4 x 80MVA

4 x 80MVA

SDCC

4 x 80MVA

SDDDSDBB

SLTC

S18

(JSRN)

3 x 40MVA

4 x 40MVA

2 x 500MVA

Mussafah

(MOS1)

4 x 40MVA

Abu Dhabi Mainland Bahia-400kV

132kV

SASN-400kV

132kV

2 x 500MVA

2 x 50MVAr

UAN-132kV

2 x 250MVA

4 x 40MVA

Khalifa A

(MKAA)

4 x 40MVA

Khalifa B

(MKBB)

Raha-B

(RBBB)

4 x 80MVA

NADIA

(Old Air Port)

4 x 40MVA

Bahia-Old

(BHYA)

2 x 140MVA

4 x 80MVA

Raha-A

(RBAA)

4 x 80MVA Masdar

Green City

New Airport

4 x 80MVA

N.O point

4 x 500MVA

4 x 50MVAr

SDYT

Sadiyat-400kV

132kV

4 x 80MVA

132 kV

OHL

132 kV

Cable

4 x 40MVA

E12-Corniche

Hospital (CNHP)

Fig. 10 132kV Electrical Power System Topology- Yr 2012(New Assets Based on Current On-Going Projects)


E15 -Tourist Club

(TCLB)E09-Firdous

(FRDS)

E11-Zayed

2nd St (ZYD2)

E08-Capital

Gardens (CPGR)

W01-Market 1

(MKT1)

W02-Market

(MRKT)

4 x 40MVA

E04-Madinat Zayed

(MDZD)

4 x 40MVA

4 x 40MVA

4 x 40MVA

4 x 40MVA

4 x 40MVA

4 x 40MVA

4 x 40MVA

E16-(CLNS)

4 x 40MVA

3 x 500MVA ADST-4

00kV

W13-Jazira

Hospital

(JZRH)

W09-Khalidya

(KLDY)

4 x 40MVA

4 x 40MVA

Marina Mall

(MRML)

W16-Bateen

(BATN)

1 x 15MVAr

1 x 20MVAr4 x 40MVA

4 x 40MVA

4 x

40

MV

A

Conference Palace

(CONH)

4 x 40MVA

E25-Higher Tech.

College (HTCO)


Station (BSTN)

4 x 40MVA

E18- Al Salam

(ALSM)

3 x 40MVA

E18/02-Falah

(FLAH)4 x

40

MV

A

W24-Mushrif

(MSHF)

4 x 40MVA

W47-Arabian

Gulf (GLFA)

4 x 40MVA

W59-Embassy

(EMBS)

4 x 40MVA2 x 20MVAr

4 x 40MVA

3 x 500MVA

4 x

40

MV

A

Khalifa Park

(KHPK)

3 x 500MVA

132kV

Al-Q

urm (E19)-4

00kV

132kV

132kV

Beach (E48)-4

00kV

LEGEND

132/11kV 132/33kV 132/22kV

AMD/PNDD, TRANSCO

June 2009


2 x 120MVA

E40-Danet

(DANT)

ADNEC

RAWDAT

W57-Zayed

Sports City

4 x 40MVA

4 x 40MVA

4 x 40MVA

4 x 40MVA

4 x 40MVA

New W24/02

W41-Green

Head (GRHD)

3 x 40MVA

4 x 40MVA

4 x 40MVA

4 x 40MVA

4 x 40MVA

4 x 40MVA

E12-Corniche

Hospital (CNHP)

E03

E01

(SOUQ)

Al Mashtel

Presidential

Palace

T2

4 x 80MVA

S1

4 x 80MVA

S2

4 x 80MVA

R1

4 x 80MVA

AL SOWA ISLAND Al Reem Island

4 x 80MVA

T1

Sadiyat Island

YAS S1

4 x 80MVA

YAS S2

4 x 80MVA

4 x 80MVA

Yas Island

132kV

4 x 500MVA

4 x 50MVAr

Reem-400kV

4 x 80MVA

4 x 80MVA

SDCC

4 x 80MVA

SDDDSDBB

SLTC

S18

(JSRN)

3 x 40MVA

4 x 40MVA

2 x 500MVA

Mussafah

(MOS1)

WATHBA

(WATH)

4 x 40MVA

MBZ

(Mohd Bin Zayed City)

3 x 120MVA

4 x 80MVA


132kV

SASN-400kV

132kV

132kV

2 x 500MVA

2 x 50MVAr

Mahawi-400kV

3 x 500MVA

3 x 50MVAr

Existing MAHAWI

(MHWG)

3 x 120MVA

UAN-132kV

2 x 250MVA

4 x 40MVA

Khalifa A

(MKAA)

4 x 40MVA

Khalifa B

(MKBB)

Raha-B

(RBBB)

4 x 80MVA

NADIA

(Old Air Port)

4 x 40MVA

Bahia-Old

(BHYA)

2 x 140MVA

4 x 80MVA

Raha-A

(RBAA)

4 x 80MVA

Masdar

Green CityNew Airport

4 x 80MVA

4 x 80MVA

New

Capital District

N.O point

4 x 500MVA

4 x 50MVAr

SDYT

Sadiyat-400kV

132kV

4 x 80MVA

132 kV

OHL

132 kV

Cable

4 x 80MVA

Fig. 11 132kV Electrical Power System Topology- Yr 2013(Planned New Assets – Indicative Only)

Abu Dhabi Island

E14 (PORT)

E15 -Tourist Club

(TCLB)E09-Firdous

(FRDS)

E11-Zayed

2nd St (ZYD2)

E08-Capital

Gardens (CPGR)

W01-Market 1

(MKT1)

W02-Market

(MRKT)

4 x 40MVA

E04-Madinat Zayed

(MDZD)

4 x 40MVA

4 x 40MVA

4 x 40MVA

4 x 40MVA

4 x 40MVA

4 x 40MVA

4 x 40MVA

E16-(CLNS)

4 x 40MVA

3 x 500MVA ADST-4

00kV

W13-Jazira

Hospital

(JZRH)

W09-Khalidya

(KLDY)

4 x 40MVA

4 x 40MVA

Marina Mall

(MRML)

W16-Bateen

(BATN)

1 x 15MVAr

1 x 20MVAr4 x 40MVA

4 x 40MVA

4 x

40

MV

A

Conference Palace

(CONH)

4 x 40MVA

E25-Higher Tech.

College (HTCO)


Station (BSTN)

4 x 40MVA

E18- Al Salam

(ALSM)

3 x 40MVA

E18/02-Falah

(FLAH)4 x

40

MV

A

W24-Mushrif

(MSHF)

4 x 40MVA

W47-Arabian

Gulf (GLFA)

4 x 40MVA

W59-Embassy

(EMBS)

4 x 40MVA2 x 20MVAr

4 x 40MVA

3 x 500MVA

4 x

40

MV

A

Khalifa Park

(KHPK)

3 x 500MVA

132kV

Al-Q

urm (E19)-400kV132kV

132kV

Beach (E48)-4

00kV

LEGEND

132/11kV 132/33kV 132/22kV

AMD/PNDD, TRANSCO

June 2009


2 x 120MVA

E40-Danet

(DANT)

ADNEC

RAWDAT

W57-Zayed

Sports City

4 x 40MVA

4 x 40MVA

4 x 40MVA

4 x 40MVA

4 x 40MVA

New W24/02

W41-Green

Head (GRHD)

3 x 40MVA

4 x 40MVA

4 x 40MVA

4 x 40MVA

4 x 40MVA

4 x 40MVA

E12-Corniche

Hospital (CNHP)

E03

E01

(SOUQ)

Al Mashtel

Presidential

Palace

T2

4 x 80MVA

S1

4 x 80MVA

S2

4 x 80MVA

R1

4 x 80MVA


4 x 80MVA

T1

Sadiyat Island

YAS S1

4 x 80MVA

YAS S2

4 x 80MVA

4 x 80MVA

Yas Island

132kV

4 x 80MVA

4 x 80MVA

SDCC

4 x 80MVA

SDDDSDBB

SLTC

S18

(JSRN)

3 x 40MVA

4 x 40MVA

2 x 500MVA

Mussafah

(MOS1)

WATHBA

(WATH)

4 x 40MVA

MBZ


4 x 80MVA


132kV

SASN-400kV

132kV

132kV

2 x 500MVA

2 x 50MVAr

Mahawi-400kV

3 x 500MVA

3 x 50MVAr

Existing MAHAWI

(MHWG)

3 x 120MVA

4 x 40MVA

Khalifa A

(MKAA)

4 x 40MVA

Khalifa B

(MKBB)

Raha-B

(RBBB)

4 x 80MVA

NADIA

(Old Air Port)

4 x 40MVA

Bahia-Old

(BHYA)

2 x 140MVA

4 x 80MVA

Raha-A

(RBAA)

4 x 80MVA

Masdar


4 x 80MVA

4 x 80MVA

New

Capital District

N.O point

4 x 500MVA

4 x 50MVAr

SDYT

Sadiyat-400kV

132kV

4 x 80MVA

132 kV

OHL

132 kV

Cable

3 x 120MVA

4 x 80MVA

4 x 500MVA4 x 50MVAr

Reem-400kV

Fig. 12 132kV Electrical Power System Topology- Yr 2014(Planned New Assets – Indicative Only)


E15 -Tourist Club

(TCLB)E09-Firdous

(FRDS)

E11-Zayed

2nd St (ZYD2)

E08-Capital

Gardens (CPGR)

W01-Market 1

(MKT1)

W02-Market

(MRKT)

4 x 40MVA

E04-Madinat Zayed

(MDZD)

4 x 40MVA

4 x 40MVA

4 x 40MVA

4 x 40MVA

4 x 40MVA

4 x 40MVA

4 x 40MVA

E16-(CLNS)

4 x 40MVA

3 x 500MVA ADST-4

00kV

W13-Jazira

Hospital

(JZRH)

W09-Khalidya

(KLDY)

4 x 40MVA

4 x 40MVA

Marina Mall

(MRML)

W16-Bateen

(BATN)

1 x 15MVAr

1 x 20MVAr4 x 40MVA

4 x 40MVA

4 x

40

MV

A

Conference Palace

(CONH)

4 x 40MVA

E25-Higher Tech.

College (HTCO)


Station (BSTN)

4 x 40MVA

E18- Al Salam

(ALSM)

3 x 40MVA

E18/02-Falah

(FLAH)4 x

40

MV

A

W24-Mushrif

(MSHF)

4 x 40MVA

W47-Arabian

Gulf (GLFA)

4 x 40MVA

W59-Embassy

(EMBS)

4 x 40MVA2 x 20MVAr

4 x 40MVA

3 x 500MVA

4 x

40

MV

A

Khalifa Park

(KHPK)

3 x 500MVA

132kV

Al-Q


132kV

Beach (E48)-4

00kV

LEGEND

132/11kV 132/33kV 132/22kV

AMD/PNDD, TRANSCO

June 2009


2 x 120MVA

E40-Danet

(DANT)

ADNEC

RAWDAT

W57-Zayed

Sports City

4 x 40MVA

4 x 40MVA

4 x 40MVA

4 x 40MVA

4 x 40MVA

New W24/02

W41-Green

Head (GRHD)

3 x 40MVA

4 x 40MVA

4 x 40MVA

4 x 40MVA

4 x 40MVA

4 x 40MVA

E12-Corniche

Hospital (CNHP)

E03

E01

(SOUQ)

Al Mashtel

Presidential

Palace

T2

4 x 80MVA

S1

4 x 80MVA

S2

4 x 80MVA

R1

4 x 80MVA


4 x 80MVA

T1

Sadiyat Island

YAS S1

4 x 80MVA

YAS S2

4 x 80MVA

4 x 80MVA

Yas Island

132kV


Reem-400kV

4 x 80MVA

4 x 80MVA

SDCC

4 x 80MVA

SDDDSDBB

SLTC

S18

(JSRN)

3 x 40MVA

4 x 40MVA

2 x 500MVA

Mussafah

(MOS1)

WATHBA

(WATH)

4 x 40MVA

MBZ



132kV

SASN-400kV

132kV

132kV

2 x 500MVA

2 x 50MVAr

Mahawi-400kV

3 x 500MVA

3 x 50MVAr

Existing MAHAWI

(MHWG)

3 x 120MVA

4 x 40MVA

Khalifa A

(MKAA)

4 x 40MVA

Khalifa B

(MKBB)

Raha-B

(RBBB)

4 x 80MVA

NADIA

(Old Air Port)

4 x 40MVA

Bahia-Old

(BHYA)

2 x 140MVA

4 x 80MVA

Raha-A

(RBAA)

4 x 80MVA

Masdar


4 x 80MVA

4 x 80MVA

New

Capital District

N.O point

4 x 500MVA

4 x 50MVAr

SDYT

Sadiyat-400kV

132kV

4 x 80MVA

132 kV

OHL

132 kV

Cable

3 x 120MVA

4 x 80MVA

4 x 80MVA

Fig. 14 132kV Electrical Power System Topology – Yr 2014

(New Assets Consolidated From Yr 2009 To Yr 2014)


E15 -Tourist Club

(TCLB)E09-Firdous

(FRDS)

E11-Zayed

2nd St (ZYD2)

E08-Capital

Gardens (CPGR)

W01-Market 1

(MKT1)

W02-Market

(MRKT)

4 x 40MVA

E04-Madinat Zayed

(MDZD)

4 x 40MVA

4 x 40MVA

4 x 40MVA

4 x 40MVA

4 x 40MVA

4 x 40MVA

4 x 40MVA

E16-(CLNS)

4 x 40MVA

3 x 500MVA ADST-4

00kV

W13-Jazira

Hospital

(JZRH)

W09-Khalidya

(KLDY)

4 x 40MVA

4 x 40MVA

Marina Mall

(MRML)

W16-Bateen

(BATN)

1 x 15MVAr

1 x 20MVAr4 x 40MVA

4 x 40MVA

4 x

40

MV

A

Conference Palace

(CONH)

4 x 40MVA

E25-Higher Tech.

College (HTCO)


Station (BSTN)

4 x 40MVA

E18- Al Salam

(ALSM)

3 x 40MVA

E18/02-Falah

(FLAH)4 x

40

MV

A

W24-Mushrif

(MSHF)

4 x 40MVA

W47-Arabian

Gulf (GLFA)

4 x 40MVA

W59-Embassy

(EMBS)

4 x 40MVA2 x 20MVAr

4 x 40MVA

3 x 500MVA

4 x

40

MV

A

Khalifa Park

(KHPK)

3 x 500MVA

132kV

Al-Q


132kV

Beach (E48)-4

00kV

LEGEND

132/11kV 132/33kV 132/22kV

AMD/PNDD, TRANSCO

June 2009

Potential New Assets

2 x 120MVA

E40-Danet

(DANT)

ADNEC

RAWDAT

W57-Zayed

Sports City

4 x 40MVA

4 x 40MVA

4 x 40MVA

4 x 40MVA

4 x 40MVA

New W24/02

W41-Green

Head (GRHD)

3 x 40MVA

4 x 40MVA

4 x 40MVA

4 x 40MVA

4 x 40MVA

4 x 40MVA

E12-Corniche

Hospital (CNHP)

E03

E01

(SOUQ)

Al Mashtel

Presidential

Palace

T2

4 x 80MVA

S1

4 x 80MVA

S2

4 x 80MVA

R1

4 x 80MVA


4 x 80MVA

T1

Sadiyat Island

YAS S1

4 x 80MVA

YAS S2

4 x 80MVA

4 x 80MVA

Yas Island

132kV


Reem-400kV

4 x 80MVA

4 x 80MVA

SDCC

4 x 80MVA

SDDDSDBB

SLTC

S18

(JSRN)

3 x 40MVA

4 x 40MVA

2 x 500MVA

Mussafah

(MOS1)

WATHBA

(WATH)

4 x 40MVA

MBZ



132kV

SASN-400kV

132kV

132kV

2 x 500MVA

2 x 50MVAr

Mahawi-400kV

3 x 500MVA

3 x 50MVAr

Existing MAHAWI

(MHWG)

3 x 120MVA

4 x 40MVA

Khalifa A

(MKAA)

4 x 40MVA

Khalifa B

(MKBB)

Raha-B

(RBBB)

4 x 80MVA

NADIA

(Old Air Port)

4 x 40MVA

Bahia-Old

(BHYA)

2 x 140MVA

4 x 80MVA

Raha-A

(RBAA)

4 x 80MVA

Masdar


4 x 80MVA

4 x 80MVA

New

Capital District

N.O point

4 x 500MVA

4 x 50MVAr

SDYT

Sadiyat-400kV

132kV

4 x 80MVA

132 kV

Cable

3 x 120MVA

4 x 80MVA

4 x 80MVA


AMD/PNDD

ATTACHMENT-3

400kV and 220kV Electricity Transmission Network Topology – Geo Maps (Year 2009 & 2014)

TRANSCO

Slide 1 of 18

TRANSCO 400kV & 220kV Transmission

System – Year 2009Abu Dhabi Islands

400 kV OHL

400 kV U/G Cable

KSA BorderLiwa

Madinat Zayed

Taweelah

Shahama

Sila

Shuwaihat

Ruwais

MirfaCentral

SASN

Mussafah AASW

AAPS

Dahma

Al Hayer

Maziyad

Al Wagon

Adnoc

Zakher Sanaiya

Arad

Sultanate of Oman

Dhaid

GIC

E48

City Centre

Asab

BuHasa

Central & Western Region

Abu Dhab

i Islan

ds

Al Ain Region

SalamatKhazna

Samha

Mahawi

SweihanADST

Dabiya

Rumaithy

E19

Bab

Bahia

ADST

E48

E19

To Taweelah

Qidfa

Wathba

400 kV OHL

220 kV OHL

Power Station

400kV Grid Station

220kV Substation

400 kV Cable

220 kV Cable

132 kV Cable

Legend

Gaithy

SASN

ADST

SADIYAT

To Mussafah

REEM

Steel

SadiyatReem

Ramah

TANEDelma Island

UAN

To Oman

Al Foah

Ras Al Khaimah

TRANSCO

Slide 2 of 18

TRANSCO 400kV & 220kV Transmission

System – Year 2014

400 kV OHL

220 kV OHL

Power Station

400kV Grid Station

220kV Substation

400 kV Cable

220 kV Cable

132 kV Cable

Legend

KSA Border

Liwa

Madinat Zayed

Shahama

Sila

ShuwaihatS1 & S2

Ruwais

Mirfa

Central

SAS

Mussafah

AAPS

Dahma

Al Hayer

Maziyad

Al Wagon

ADNOCSanaiya

Arad

Sultanate of Oman

Dhaid

GIC

E48

City Centre

Asab

BuHasa

Central & Western Region

Abu Dhab

i Islan

ds

Al AinRegion

SalamatKhazna

Mahawi

SweihanADST

Dabiya

Rumaithy

E19

GaithyBab

UAN

Bahia

SASN

REEM

ADST

E48

E19

To TANE

SADIYAT

Abu Dhabi Islands400 kV OHL

400 kV U/G Cable

To

GC

C In

terc

onne

ctio

n

ICAD

Steel

Qidfa

Umm Al Oush

To Mahawi

Bahia

Sadiyat

ReemDelma Island

Ras Al Khaimah

QusahwiraShah- SGD

Masdar Shams

GhantootKIZ

Emal

AAIC

ICAD-A

Ajman

New Fujairah

To TWPS

Sir Baniyas

AASW

Al FoahRamah

Zakher

To Oman

Al Maqam

Shamkha

ICAD-D

GhadeerSamha

Taweela-CTANE

Taweela-P.S

Documents

TRANSCO 2009 Five Year Electricity Planning Statement ... · Five Year Electricity Planning Statement (2010-2014) ... Five-Year Electricity Planning Statement ... New 400/220kV grid