Central Electricity Authority -As per Address list enclosed-

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Central Electricity Authority

System Planning & Project Appraisal Division Sewa Bhawan, R.K. Puram, New Delhi – 110066

No. 51/4/SP&PA-2014/ 150-171 Date: 21-January-2014

To

-As per Address list enclosed-

Sub: Minutes of the Joint meeting of the Standing Committees of Power System planning of SR and WR, held on 26-Dec-2013 at SRPC, Bangalore

Sir, A joint meeting of the Standing Committees of Power System Planning of Southern region and Western region was held at SRPC, Bangalore on 26-Dec-2013 (Thursday) to discuss following agenda: 1. Transmission system of KPTCL for evacuation of power from Yeramarus

(2x800 MW) and Edlapur (1 x 800 MW) Thermal power generation. 2. The concept on General Network Access (GNA), titled “Ensuring

adequacy in the planning & development of Inter-state Transmission System”.

Minutes of the meeting is enclosed. It is also available at CEA’s website ( www.cea.nic.in).

Yours faithfully,

(Pardeep Jindal) Director(SP&PA)

(Telephone: 011 26198092, Fax No. 011 26102045)

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Address list

1. The Member Secretary, Southern Regional Power Committee, 29, Race Course Cross Road, Bangalore 560 009. FAX : 080-22259343

2. The Member Secretary, Western Regional Power Committee, MIDC Area, Marol, Andheri East, Mumbai Fax 022 28370193

3. The Director (Projects),

Power Grid Corp. of India Ltd. “Saudamini”, Plot No.2, Sector-29, Gurgaon 122 001, Haryana. FAX : 95124-2571932

4. COO(CTU) Power Grid Corp. of India Ltd. “Saudamini”, Plot No.2, Sector-29, Gurgaon 122 001, Haryana. FAX : 95124-2571932

5. Shri S. K. Soonee,

CEO, POSOCO, B-9, Qutub Institutional Area, Katwaria Sarai, New Delhi-110016 Fax 011-26852747

6. The Executive Director (Engg.), NTPC Ltd., Engg. Office Complex, A-8, Sector-24, NOIDA 201301 Fax 0120-2410201/2410211

7. The Director (Power), Corporate Office, Block – I, Neyveli Lignite Corp. Ltd., Neyveli , Tamil Nadu – 607 801. FAX : 04142-252650

8. Director (Operations), NPCIL, 12th Floor, Vikram Sarabhai Bhawan, Anushakti Nagar, Mumbai – 400 094. FAX : 022- 25991258

9. ED, SRLDC,

29, Race Course Cross Road, Bangalore 560 009 FAX – 080-22268725

10. GM, WRLDC Plot no F-3, MIDC Area, Msarol, Andheri(East) Mumbai-400093 Fax no 022-28235434

11. The Managing Director,

GETCO, Sardar Patel Vidyut Bhawan, Race Course, Baroda-390007 Fax 0265-2338164

12. Director (Operation), MAHATRANSCO, 'Prakashgad', Plot No.G-9, Bandra-East, Mumbai-400051 Fax 022-26390383/26595258

13. Chairman and Managing Director, MPPTCL, Shakti Bhawan, Rampur, Jabalpur-482008 Fax 0761 2664141

14. The Managing Director, CSPTCL, Dangania, Raipur (CG)-492013 Fax 0771 2574246/ 4066566

15. The Chief Engineer, Electricity Department, The Government of Goa, Panaji, Goa Fax 0832 2222354

16. Executive Engineer Administration of Daman & Diu (U.T.) Department of Electricity Moti, Daman-396220 Ph. 0260-2250889, 2254745

17. Executive Engineer (Projects) UT of Dadra & Nagar Haveli, Department of Electricity , Silvassa Ph. 0260-2642338/2230771

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18. The Director (Grid Operation),

Transmission Corp. of Andhra Pradesh Ltd., Vidyut Soudha, Hyderabad – 500 082. FAX : 040- 23321751

19. The Director (Transmission), Karnataka State Power Transmission Corp.Ltd, Cauvery Bhawan, Bangalore 560 009. FAX : 080 -22228367

20. The Member (Transmission), Kerala State Electricity Board, Vidyuthi Bhawanam, Pattom, P.B. No. 1028, Thiruvananthapuram - 695 004. FAX : 0471-2444738

21. Member (Distribution), Tamil Nadu electricity Board (TNEB), 6th Floor, Eastern Wing, 800 Anna Salai, Chennai - 600002. FAX : 044-28516362

22. The Superintending Engineer –I, First Floor, Electricity Department, Gingy Salai, Puducherry – 605 001. FAX : 0413-2334277/2331556

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MINUTES OF MEETING

Minutes of the Joint meeting of the Standing Committees of Power System planning of SR and WR, held on 26-Dec-2013 at SRPC, Bangalore

List of participants is given at Annex-I.

1.0 Member Secretary, SRPC welcomed Chairperson, CEA and the participants in SRPC to the joint meeting of the Standing Committees of Southern and Western regions.

Chairperson, CEA welcomed the participants from Southern and Western regions and introduced the concept of GNA in the context of planning of ISTS network. She said that the GNA would provide flexibility in procurement of power to the States and also ensure that adequate ISTS network gets built to meet their load demand. She added that before formally sending the concept paper to CERC in the context of amendment to the LTA/MTOA regulations, it would be pertinent to discuss the GNA concept with all the stakeholders and seek their valuable suggestions.

Chief Engineer(SP&PA), CEA said that the main agenda for this joint meeting is to discuss the concept paper on General Network Access i.e. GNA. It is also proposed that the issue of transmission system for evacuation of power from Yeramarus (2x800 MW) and Edlapur (1 x 800 MW) Thermal power generation in Karnataka, for which CEA has already given its in-principle approval, shall be discussed. He requested Director(SP&PA), CEA to take up the agenda items for discussion.

2.0 Transmission system of KPTCL for evacuation of power from Yeramarus (2x800 MW) and Edlapur (1 x 800 MW) Thermal power generation.

2.1 Director(SP&PA), CEA mentioned that the transmission system for evacuation of power from the Yeramarus (2 x 800 MW) and Edlapur (1 x 800 MW) Thermal power generation project in the State of Karnataka was discussed in the meeting held in CEA with KPTCL and Central Transmission Utility i.e. Power Grid Corporation of India Ltd. on 14th November, 2013. Based on the studies carried out and discussions held in CEA, it was brought out that the total transmission system may be implemented in two stages.

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Stage-I : Transmission scheme for evacuation of power from Yeramarus (2 x 800 MW) TPS, and

Stage-II: Transmission scheme for evacuation of power from Edlapur (1 x 800 MW) TPS.

CEA, on 19-11-2013 has given its ‘In-principle’ approval to KPTCL so as to enable them carry out preparatory activities for these schemes. He presented the results of the system studies that were carried out by KPTCL jointly with CTU and CEA and explained various transmission alternatives considered. The presentation and the results are given at Annex-II.

2.2 After discussion, it was agreed that following transmission system would be implemented by KPTCL for evacuation of power from Yermarus TPS(2x800 MW) under Stage-I.

(i) Bellary 400kV Pooling Station near ‘BTPS’. (ii) Gulbarga 400/220 kV substation 7x167 MVA( single phase) or 2x500

MVA. (iii) Yermarus TPS - Gulbarga 400 kV D/C line with quad moose conductor (iv) Establish 400 KV switching station at Chikkanayakanahalli (C.N Halli)

near “Loop in Loop Out” (LILO) point on the Nelamangala – Talaguppa 400kV lines to Hassan.

(v) LILO of both the circuits of Nelamangala – Talaguppa 400kV lines to the proposed pooling station near CN Halli.

(vi) Terminate 400kV D/C line feeding 400/220 KV station at Hassan from Nelamangala – Talaguppa line at CN Halli 400kV pooling station.

(vii) Yermarus TPS - Bellary Pooling Station 400kV D/C line with quad moose conductor

(viii) Bellary Pooling Station - C.N.Hally 400kV D/C line with quad moose conductor

(ix) Bellary Pooling Station - New Madhugiri (near Tumakur) 765/400kV station, 400kV D/C line with quad moose conductor

(x) Bellary TPS – Bellary Pooling Station 400kV D/C line with quad moose conductor

(xi) De-link 400kV S/C line running between RTPS-BTPS-JSW-Guttur with ‘BTPS’ and JSW Bus so as to retain direct connectivity between RTPS and Guttur

(xii) JSW TPS – Bellary Pooling Station 400kV D/C line with quad moose conductor

2.3 It was agreed that KPTCL would take up the item nos. (xi) and (xii) above, only after the rest of the transmission lines and substations in the scope of Stage-I, above have been commissioned. KPTCL said that, for the item no. (xii), they would discuss with M/s JSW to take up this work as dedicated transmission line by the generator, and the same was noted.

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2.4 All the new substations given above would be designed for fault level of 50kA.

2.5 KPTCL would plan an additional 400kV D/C transmission line from JSW TPS or would configure the JSW-Bellary link in such a way that in case of contingency the LILO of RTPS-Guttur at JSW would be re-established. If there is any constraint/congestion in the system beyond Bellary Pooling Station/or New Madhugiri S/S then the JSW or other generators connected at Bellary P.S. may have to be backed down.

2.6 It was agreed that following transmission system would be implemented by KPTCL under Stage-II matching with the Edlapur TPS(1x800 MW) generation project:

(i) Edlapur TPS - Bellary Pooling Station 400kV D/C line with quad moose conductor

(ii) Edlapur TPS - Yermarus TPS 400kV D/C line with quad moose conductor

(iii) Tumakur (New Madhugiri) - Bastipura (Mysore) 400kV D/C line with quad moose conductor

3.0 The concept on General Network Access (GNA), titled “Ensuring adequacy in the planning & development of Inter-state Transmission System”.

3.1 Director(SP&PA) made a presentation on the concept of GNA, detailing the issues and concerns in the present practice of according connectivity/ LTA with target region / or LTA for capacity less than the installed capacity. Regarding ‘connectivity’, as provided under the regulations, he said that it has to be in accordance with the Section 7 of the Electricity Act 2003 and CEA’s technical standards for connectivity to the grid. The LTA with target region, which was introduced since the States were not firming up their long term power requirements through Case-I biddings, does not ensure building up of adequate transmission system required by the states/region of actual drawal of power. The MTOA and STOA are operated using margins in the existing system and do not mandate creation of additional transmission capacities thus often leading to congestion. He said that GNA provides flexibility to both the generators and the drawing State entities in sale/purchase of electricity under long-term, medium term or short term and ensures availability of adequate ISTS network to meet their requirement up to the GNA quantum. He emphasized the need to declare realistic GNA by the drawing entities and GNA corresponding to full installed capacity of generators. He also highlighted that as under GNA, the total quantum of MW that would share transmission charges would be more as compared to under the existing mechanism, therefore, the rate of transmission charges in terms of Rs/MW/month may be lesser. A copy of the presentation is given at Annex-III.

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3.2 CE(SLDC), GETCO said that under GNA, the States would be required to assess their drawal requirement 4-5 years in advance. He said that it is not possible to correctly estimate the GNA requirements (injection / and drawal) by the States generally because of uncertainty in assessment of demand, the setting up of state generations, availability of gas, price of gas/fuel and increasing penetration of renewable energy. Further, it is also difficult to assess as to how many open access customers would source their supply from outside the State and therefore, it becomes difficult for the DISCOMs/States to assess accurately their GNA requirement. The open access customers are increasing in Gujarat. Some private DISCOMS are also sourcing cheaper power from outside instead of from the generators within DISCOM/State. Similarly, some of the captive generators are selling outside the state whose requirement cannot be assessed by the State. Under GNA concept, there may be over planning of the ISTS as well as the Intra-State network. However, under GNA the needy States would not be deprived of power because of lack of transmission. GNA would facilitate evacuation of power from merchant capacities and would encourage short-term market. Therefore, before implementing the GNA, likely requirement of transmission augmentation with cost implications may be studied for various load-generation scenarios.

3.2 Chhatisgarh and Tamil Nadu said that they would send their comments, if any, by 02nd January 2014

3.3 MS, WRPC said that the GNA concept may lead to over sizing of the ISTS. There is need for aligning the GNA concept with the PoC mechanism. It would be difficult to predict GNA requirement by States 3-4 years in advance. There is need for change in present regulation (Connectivity LTA, MTOA & STOA, PoC regulation) to overcome shortcomings.

3.4 MS, SRPC agreed with the concept of GNA as it would help in creating adequate transmission capacity in the country. He said that assessment of GNA requirement is dependent on a number of external factors. Therefore, GNA requirement for next five years could be assessed as a rolling Plan. Practicable minor modifications may be accommodated in GNA assessment to take care of uncertainties.

3.5 DGM(CTU), PGCIL opined that, CEA/CTU could assist the States for assessing their GNA requirement for the purpose of transmission system planning. However, it may not be necessary for the States to pay/commit to pay upfront the transmission charges as per their GNA quantum, because any upfront commitment by States may lead to conservative assessment of GNA, which in turn may lead to low transmission development. COO, POSOCO said that it

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would dilute the concept of GNA as the States have to take the responsibility of assessment of their GNA requirement in a realistic manner.

3.6 Director(GO&Trans), APTRANSCO welcomed the concept of GNA as proposed by CEA. He suggested that the State beneficiaries may be excluded from the requirement of submitting bank guarantees to CTU, as the beneficiaries are functioning under the control of the respective State Governments.

3.7 AGM, NTPC said that CERC’s regulation on the connectivity, had helped the generators, in the past, in fulfilling their requirement for achieving financial closures. He opined that GNA is an ideal concept and would help in planning and development of adequate transmission system both for generators and as well as for the drawing entities.

3.8 Director(Transmission), KSEB welcomed the concept of GNA as it would provide flexibility to any utility to procure power from any generator and vice-versa for the generators. However, the additional expenditure on transmission system, under GNA should not be loaded to the beneficiaries, in case of default by generators. He agreed that the present practice of granting connectivity and allotment of LTA for partial capacity may be reviewed. A payback period for transmission cost recovery i.e. 12 years as proposed under GNA is on lower side. Life of the transmission system is more than that of a generator and therefore currently adopted period of cost recovery may be followed. Grid expansion plans evolved based on GNA should be able to cater to needs of various feasible operating scenarios and should also provide margins to take care of uncertainties in load generation balance. He suggested that along with the proposed GNA philosophy, the cost sharing principle may also be reviewed.

3.9 Karnataka principally agreed with the concept of GNA for development of Inter State transmission system.

3.10 Chairperson, CEA asked all the participants to send their comments latest by 2nd January and asked SRPC and WRPC to facilitate in expediting comments of the States who were not present in the meeting.

4.0 Meeting ended with vote of thanks.

------ x ------- x --------- x -----------

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Annex-I

List of participants of the Joint meeting of the Standing Committees of Power System planning of SR and WR, held on 26-Dec-2013 at SRPC, Bangalore Sl. Name and Organization Designation No. Central Electricity Authority (CEA) 1. Neerja Mathur Chairperson 2. K. K.Arya Chief Engineer(SP&PA) 3. Pardeep Jindal Director (SP&PA) 4. Ravinder Gupta Director(SP&PA) Southern Region Power Committee (SRPC) 5. S. R. Bhat Member Secretary I/c 6. Meka Ramakrishna Ex. Engr.

Western Region Power Committee (SRPC) 7. S. D. Taksande Member Secretary 8. P. D. Llone Ex. Engr.

Power Grid Corporation of India Limited (POWERGRID) 9. N. Ravi Kumar ED(SR-II) 10. Dilip Rozekar DGM(CTU) 11. Manju Gupta DGM(CTU) Power System Operation Corporation Limited (POSOCO) 12. S.K. Soonee CEO, POSOCO 13. P. Raghuram ED, SRLDC 14. V. Balaji GM, SRLDC 15. V.Suresh DGM, SRLDC 16. Abhimanyu DGM, WRLDC 17. Madhukar G. Sr. Engineer, SRLDC 18. Venkateshanm Sr. Engineer, SRLDC 19. L. Sharath Engineer, SRLDC NTPC Limited (NTPC) 20. S. S. Mishra AGM (Engg-Electrical) Transmission Corp. of Andhra Pradesh Ltd. (APTRANSCO)

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21. Mohd. Anwaruddin Director (GO & Trans) Chhatisgarh State Power Transmission Co. Ltd.(CSPTCL) 22. Sanjay Nayak ED(C&P) Gujarat / GETCO / GUVNL 23. B. B. Mehta C.E.(SLDC)/ GETCO 24. P. J. Jani E.E.(CSP)/ GUVNL 25. Venu Birappa Ex. Engr./ GETCO Karnataka Power Transmission Corp. Ltd. (KPTCL) 26. S. Sumanath Director(Transmission) 27. A. J. Hosamani Chief Engineer(P&C) 28. D. Chethan EE(PSS) 29. Meetha C. Jadav AE(Elec) 30. Divya Prabha H. AE(PSS) 31. Vijayendra V. K. AE(PSS) Kerala State Electricity Board (KSEB) 32. K. Vikram Nair Director(Transmission) 33. S. R. Anand EE/LD

Tamil Nadu Electricity Board (TNEB) / TANGEDCO/TANTRANSCO 34. Viji K. Chief Engineer/Planning (TANGEDCO) 35. R. Santhana Kumar EE/ System Studies (TANGEDCO)

Proposed Evacuation scheme for

Yeramarus ( 2x800 MWs) &

Edlapura( 1x800 MWs) Generation

As per New Manual on Transmission Planning Criteria –Jan 2013

GENERATION

4100 MWS

GENERATION4000MWs

LOAD CENTRE

WIND1000MWs

Annex-II

P

Mehboobnagar

Kaiga4x220

GutturK

PGuddadhalli

G

G BTPS 2x500 MW+1x700 MWG

JSW‐4x300 MW +2x130 MW

PK

Talguppa

G P

UPCL

Shantigrama

P

K

Bastipura

Nelamangala

P

400 kV Quad Moose Line

Hiriyur

G

RTPS –1720 MW

400 PGCIL Substation

K 400 KPTCL Substation

Gooty

Narendra

Hoody

Bidadi

Somanahalli

Salem

P

P

K

PKolar

Salem Hosur

Cuddapa

Existing Network

P

Yeramarus Evacuation Scheme

• About 15 various case studies were studied for the Yeramarusevacuation scheme jointly along with CEA and PGCIL, New Delhi. ( Four meetings )

• Major five cases are explained.

CEA considers the following criteria

• (n‐1) criteria‐ One line outage

• (n‐1‐1) Criteria‐ One line under maintenance and other line outage

MehboobnagarSholapurKolhapur

Kurnool

Kudgi‐2400 MW

R‐New

P

Kaiga4x220

GutturK

Guddadhalli

ETPS – 800MW

YTPS ‐1600 MW

BTPS 2x500 MW+1x700 MW


K

Talguppa

UPCLShantigrama

K

Bastipura

Nelamangala

765 kV Line


Hiriyur Tumkur

Yelahanka

RTPS –1720 MW



Gooty

Dabaspet

Narendra

GulbargaK

KDoni

Hoody

Bidadi

Somanahalli

Salem

K

K

Kolar

Mylsandra

Salem Hosur

CuddapaKozikode

Case 1

N‐New

System Losses: 289.2 MWEstimated Cost- Rs 2874 Crs

P

P

P

P

P

P

P

P

P

P

G

P

GG

G

G

G

GG

MehboobnagarSholapur

Kurnool

Kudgi ‐2400 MW

P

Kaiga4x220

GutturK

Guddadhalli

ETPS – 800MW

YTPS ‐1600 MW



K

Talguppa

UPCL Shantigrama

K

Bastipura

Nelamangala

765 kV Line


HiriyurTumkur

Yelahanka

RTPS –1720 MW



Gooty

Dabaspet

Narendra

GulbargaK

KDoni

Hoody

Bidadi

Somanahalli

Salem

K

K

Kolar

Mylsandra

Salem Hosur

CuddapaKozikode

Case 2

KBellary Pool

N‐New

Kolhapur

R‐New


G

P

P

PP

P

PP

P

P

P

P

GG

G

G

GG

G


Kurnool

Kudgi‐2400 MW

R‐New

P

Kaiga4x220

GutturK

Guddadhalli

ETPS – 800MW

YTPS ‐1600 MW



K

Talguppa

UPCL Shantigrama

K

Bastipura

Nelamangala

765 kV Line


Hiriyur Tumkur

Yelahanka

RTPS –1720 MW



Gooty

CN Halli

Narendra

GulbargaK

K

Doni

Hoody

Bidadi

Somanahalli

Salem

K

K

Kolar

Mylsandra

Salem HosurCuddapaKozikode

K

Case 3

K

Bellary Pool

N‐New

Kolhapur

System Losses: 336 MWEstimated Cost- Rs 2607 Crs

G

P

P

P

P

P

P

P P

P

P

P

GG

G

G

GG

G


Kurnool

Kudgi‐2400 MW

R‐New

P

Kaiga4x220

GutturK

Guddadhalli

ETPS – 800MW

YTPS ‐1600 MW



K

Talguppa

PUPCL Shantigrama

K

Bastipura

Nelamangala

765 kV Line


HiriyurTumkur

Yelahanka

RTPS –1720 MW



Gooty

CN Halli

Narendra

GulbargaK

KDoni

Hoody

Bidadi

Somanahalli

Salem

K

K

Kolar

Mylsandra

Salem Hosur

CuddapaKozikode

K

Case 4

K

Bellary Pool

N‐New

Kolhapur


G

P

P

P

P

P

P

P

P

P P

G G

G

G G

GG

Case 5 MehboobnagarSholapur

Kurnool

Kudgi‐2400 MW

R‐New

P

Kaiga4x220

GutturK

Guddadhalli

ETPS – 800MW

YTPS ‐1600 MW



K

Talguppa

UPCL Shantigrama

K

Bastipura

Nelamangala

765 kV Line


Hiriyur Tumkur

Yelahanka

RTPS –1720 MW



Gooty

CN Halli

Narendra

GulbargaK

KDoni

Hoody

Bidadi

Somanahalli

Salem

K

K

Kolar

Mylsandra

Salem Hosur

CuddapaKozikode

K

K

Bellary Pool

N‐New

Kolhapur

System Losses: 334 MWEstimated Cost- Rs 2652 Crs

G P

PP

P

P

P

P

P

P

P

GG

G

G

G

G

G

P

Comparison of cases

CASE

Evacuation scheme Voltage

Class in kV

System Loss in MWs

Estimated cost in Rs

Crs

CASE‐1 765 289.20 Rs. 2874 CrsCASE‐2 400 329.80 Rs. 2855 CrsCASE‐3 400 336.00 Rs. 2607 CrsCASE‐4 400 328.50 Rs. 2517 CrsCASE‐5 400 334.00 Rs. 2652 Crs

Case-4 : Opted scheme – Techno-economical feasibility

MehboobnagarShollapur

G

Kolhapur

Kurnool

G

Kudgi ‐2400 MWStage ‐ 1

R‐New(PGCIL)

P

Kaiga4x220

GutturK

Guddadhalli

ETPS –1x800MW

YTPS 2x800 MW

GBTPS 2x500 MW+1x700 MW

GJSW‐4x300 MW +2x130 MW

K

Talguppa

UPCL Shantigrama

K

Bastipura

Nelamangala

765 kV Line


Hiriyur Tumkur

Yelahanka

RTPS –1720 MW



Gooty

Kudagi

Narendra

GulbargaK

Hoody

Bidadi

Somanahalli

Salem

K

K

Kolar

Mylsandra

Salem Hosur

CuddapaKozikode

K

Proposed Scheme

K

BellaryPooling Stn

CN Halii


P

P

P

P

P

P

P

P

P

P

P

G

G

G

G

MehboobnagarShollapurKolhapur

Kurnool


R‐New

P

Kaiga4x220

GutturK

Guddadhalli

ETPS –1x800MW

YTPS 2x800 MW



K

Talguppa

PUPCL Shantigrama

K

Bastipura

Nelamangala

765 kV Line


Hiriyur Tumkur

Yelahanka

G

RTPS –1720 MW



Gooty

Kudagi

Narendra

GulbargaK

Hoody

Bidadi

Somanahalli

Salem

K

K

Kolar

Mylsandra

Salem Hosur

CuddapaKozikode

K

KBellaryPooling Stn

CN Halii

410x4

396x2

111x2

206x2

257x2

284

347

31

213

107x2 36x2

105x2

16x2 517x

2

510x2

1144x2

38x2

383x

2

169x2

296x2

673x2

637x

2

22x2

357x2

344x2

196x2

192x2

110x

2

233x

2

426x

2

243x

239

0

371

262x

2

32x2

310x

2

344x2

242

127

344x2

84x2

65

73618

133

835x

2

378x

2

219x

2

254x2

Power Flows for Proposed Scheme- With CN Halli-Bastipur DC line

P

P

PP

P

P

P

P

P

P

G

G

G

G

G

G

G

MehboobnagarShollapurKolhapur

Kurnool


R‐New

P

Kaiga4x220

GutturK

Guddadhalli

ETPS –1x800MW

YTPS 2x800 MW



PK

Talguppa

UPCL Shantigrama

K

Bastipura

Nelamangala

765 kV Line


Hiriyur Tumkur

Yelahanka

G

RTPS –1720 MW



Gooty

Kudagi

Narendra

GulbargaK

Hoody

Bidadi

Somanahalli

Salem

K

K

Kolar

Mylsandra

Salem Hosur

CuddapaKozikode

K

Power Flows for Proposed Scheme- With Tumkur-Bastipur DC line

KBellaryPooling Stn

CN Halii

410x4

397x2

121x2

196x2

262x2

285

343

29

210

110x2 33x2

103x2

12x2 519x

2

510x2

1145x2

38x2

381x

2

164x2

293x2

675x2

575x

2

39x2

357x2

395x2

142x

2

246x2

112x

2

234x

2

402x

2

268x

239

0

371

262x

2

22x2

301x

2

321x2

250

161

282x2

82x265

71618

117

884x

2

377x

2

282x

2

255x2

225x2

G

G

P

P

P

P

P P

PP

P

P P

G

G

G

G

G

Fault Level in Various Buses

Bus No. Bus NameVoltage Level

3‐Ph fault current in kA

SLG Fault Current in kA

524003[RAIC 400 33.1 34.8524004[DAVAN4 400 23.0 23.6524005[HOODI4 400 31.7 31.0524006[TALAGUP4 400 9.4 9.6524007[NELMANG4 400 37.6 36.6524008[UDUPI400 400 12.8 14.7524009[HASSAN4 400 19.7 20.2524010[MYSORE4 400 20.7 20.6524013[RAIC‐NEW 400 33.9 35.2524015[NARDR‐NW 400 32.3 36.2524035[ECITY 400 21.3 20.7524044[HIRY 400 21.2 21.3524047[NAREND‐4 400 28.6 31.0524076[TORNGL4 400 32.1 33.5524077[BIDADI 400 34.8 33.8524082[BELLARY 400 34.4 37.4524083[YERAMRS 400 24.3 26.9524084[YELAHNKA 400 29.4 28.7524085[EDLAPUR 400 23.1 25.1524086[BELLARY‐POOL400.00] 400 36.7 40.5524097[CNHALLI 400 22.3 22.8524098[MADHUGI4 400 38.0 37.9528003[RAIC800 765 20.2 20.4

Contingency studies ( n‐1‐1)

• 400kV DC Quad moose line between Bellary Pooling Station and Tumkur(Madhugiri)‐ Line outage

• 400kV DC Quad moose line between Bellary Pooling Station and CN Halli‐ Line outage

Stability studies• Stability studies were conducted using mi‐power Software.

• Results obtained are normal

• CEA vide letter dated 19‐11‐2013 has given “in‐principle” approval pending clearance in standing committee.

• Members may please discuss

TRANSMISSION SYSTEM STUDIES FOR 2016-17 TIME FRAME

Bus - Base voltage (kV)Branch - MW/MvarEquipment - MW/Mvar

kV: <=110.000 <=132.000 <=220.000 <=230.000 <=400.000 <=765.000 >765.000

409-44

544021KUDAN4

412-41

534000KOCHIN4

400-51

534002TRIVAND4

401-48

544005MADURAI4

399-47

409

-9

-407

-44

492

3

-490

-38

-311

-45

314

28

-191

-84

192 5

-68

-20

68

-73

98

-97

-52

0 57

120

79

1801

142

544018TIRUNEL4

534001TNRT

115

12

-115

-62

397-52

-185 90

-57 -43

1

3

434

-16

395-47

544003SALE

-15

66

15

-101

223

-123

223

-123

544041METTUR4

400-46

130R

544007HOSUR4

375-44

524001SMNH

370-45

544001NYVL

400-40

75

171

3

171

3

373-41

524077BIDADI

372-44

369-44

-275

-75

-275

-75

326

-79

-325

64

0 -738

375-44

80

-139

-24

201

524009HASSAN4

524010MYSORE4

388-48

524044HIRY

524006TALAGUP4

399-44

236

-155

-234

110

-366

-17

-366

-17

-226

-41

227 2

534003KOZIKOD4

397-53

175

-116

-174

17

400-39

378

11

-375

-86

1020 39

393-35

397-32

399-29

380-39

514028KURL-NEW

397-31

514093NEL-POOL

399-25

-303

-36

-304

-45

-298

-46

230

11

230

11

-207

2 -294

-51

298

-39

358

-32

-357

29

-441

-112

-441

0

52

524082BELLARY

400-22

-721

7

738

46 -123

-46

109

524012KAIGA

400-35

524047NAREND-4

397-36

-98

-74

98

-11

-21

-30

-60

21

-62

-107

-49

108

-8

1020

1446

400-30

-146

117

-146

117

341 1

715

267

514023MAHABUB4

401-32

-294 27

374

19

524005HOODI4

220

51

-242

-14

-242

-14

514003NSAG

400-31

54

-5

13 -4

400-28

393-33

165

-47

163

-35

-161

-8

-124

-82

308

-20

-305

-6

2342

35

514009CHAND-SR

403-21

514052MALKARM4

392-33

398-28

-223

-43

571

11

-342

-1

329

216

-14

-218

-93

-37

-31

0 -355

-16

-57

514007CUDP

392-36

252

73

911

-126

899

-222

544087TIRUVLM

393-37

-1049

204

-369

-232

399-28

514024CHITOR

394-36

544002MADR

396-37

399-38

400-40

-420

-52

424

-27

-205

-20

205 7

-43 -8

61

-91

-61

27

-396

-4

402

-36

-762 76

765

-56

79

-61

25

-56

544088VALLU TP

400-36

398-38

-18

261 1

-21

-33

21

-11

377

-51

-375

29

265

-158

1276

-99

544073PONDY4

398-41

-179

-14

117

-0714

16

544020NEY_IIEX

-186

15

544013PUGALUR4

-236

135

236

-128

-28

-92

28

18

544010NEYEXTN4

400-40

30

-6-78

410-46

-323

75

-32

-55

544017KARAIK

413-47

41

-74

63

-55

544095TUTI-POOL

407-43

213

-111

-212 16

514089SIMHP-OA

400-23

400-22

911

-21

911

-21

546

-12

514005VIJW

400-26

51

-51

51

-51

-165

-10

514006GAZW

399-16

397-21

514030VIJTP-IV

400-26

400-25

242

-78

-240

15

-182

57

182

-58

125

-13

-125

2

425

112

250

-27

399-16

514015SIMHD-II

400-16

514016VIZPOOL

400-17

795

-161

73

-77

-270

92

270

-97

0

-298

234 13

-232

-41

243

-36

-241

9

263

-55

-259

-5

901

170

400-17

213

28

-213

-30

-213

-30

28

851

168

514010GAZU-SR

514029KAKTIA-G

400-27

209

30

-209

266

-39

-264

-14

514012HYDR-AP4

398-32

514049KOTH-IV

400-26

183

-48

-48

-212 9

213

-40

-151

-122

425

-80R

514011SSLBPH4

400-29

-207

-35

208

-33

235 -8

450

-47

514026VIJ-AP

399-26

101

-25

-101

-43

-142

-45

142

35

-197

31

199

-77

386-36

544000CHENN-EX

400-37

-283

-24

284

227

21

-226

-41

1021

66

514090MENAK-OA

425

524084YELAHNKA

398-52

534041PALAKKAD

544006UDMP

139

-95

0

154

0 57

0 55

0 45

0

0

226

45

0 43

0 55

0 56 -182

0

56

0 57

0

57

0 72

0 57

0

49

0 55

0 69

0

42

0 49

0 57

0

53

0 44

0

49

0 49

0 56

56

0

54

0 50

0

57

0 77

0

57

0 119

544026KANAPATT

409-44

544027KAYA400

409-44

544093TAPPAKUN

544094ANIKADAV

544122EDAMLYRM

544016PUGALUR-NEW

544127KILPENTR4

412-45

544129KARAIKUD74

414-46

41350

544113DHARMPR

395-41

544071TUTICORN

404-42

544012CUDDAL4

544063TANJORE4

412-47

394-48

544128COIMBTR4

395-47

544097RASIPALA

403-44

403-30

514101MAHESWRM

399-30

400-26

398-39

524035ECITY

366-45

-15

-6

15 -8

-39

9

39

-23

1

0

114

1

46

8

638

111

-4272

42-116

SW

-342 69

343

-94

124

-124

-32

-31

-50

-34

-260

138

263

-267

-36

-25

36

-131

81

-40

-81

-97

1

0

-751

-48

-74

48

55

-51

-89

52

-178

-249

205

250

-221

1

0 75

-341

148

136

-79

-136

39

SW

-0

-427 96

-427 96

112

-9

-112

-16

-56

-32

56

30

1

0 109

47

1

343

-14

-342

-10

1

-217

-83

217

80

698

-145

698

-145

59

79

-88

-473

-91

-163

-91

-163

-194

-109

-194

-109

148

-185

-185

1

0

209

202

-166

-201

-4

1

0

32

-19

-79

1

0

121

-72

61

1

0

57

-116-48116

-64

-243

115

244

-135

-171

-128

171

105

298

-82

298

-82

-13

71

13

-103

1

0

-801

1

74

-16474

-164

-79

-30

79

-46

-196

39

-196

39

-1140

425

1

0 56

-288

-182

288

124

0 582

1

1

111

161

-2

-161

-30

-95

-78

95 41

0 70

1

0

110

1

-71

-76

SW

-0

76

141

392 32

SW -0

314

-139 314

-139

1

0

70

242

18

-130

-37

197

-77

-196

5

1

0 112

542

88

-538

-92

1

0

111

1

0 112

626

109

1

392 -1

-110

851

-383

406-42

255

-75

-255 52

510

-150

360

575

120

401-23

-390

5

393

-81

251

-118

-251

94

1

0

71

2

0

111

-991

121

349

85

-346

-159

SW

-0

400-26

-920

186

1

-33

1

-38

425

514099CPETA400

396-26

514042HINDPR40

404-37

430

-242

62

-133

-62

38

-233

-62

-233

-62

-31

-66

31

18

214

-55

1

0

49

236

-27

236

-27

-173

-13

173

10 2

0

113

272

-72

-270

-12

1

0

72

-159

-27

-159

-27

2

0 113

890

-53

514039GARIVIDI

-220

-31

221

-39

395-17

-343 92

-368

95

30

26

1

0

514081PODLI

397-29

246

-60

-246

5

-545

5

443 -3

2

0 109

SW

-0

2

0

111

39

443

2

0 113

10 113

2

0 109

SW

-0

524098MADHUGI4

-1254

-249

-66

252

-36

2

0 108

544072UDNGDI4

44355

1

544008NMADRAS4

40058

544124ETPSEXP

40058

544131NCTPSSTG4

40058

1

0 0

0 00 0

0 0

400-2

-620

-111 1

0 113

514091EAST-OA

620

240

524015NARDR-NW

399-36

2

0

97

104 23

-103

-126

1

0 50

101

-317

-108

1

0

1

0 112

2

0 108

1

0

57

400-35

-59

-410

-59

411

55

55

1

0 225

2

0 111

0 55

2040

488

399-28

51

-51

51

-51

-13

-2 -13

-2

1

0 0

514027KRISH-AP

400-27

514094NCCPPL

400-24

514018TPCIL4

400-24

544091SHOLNGNR

399-41

410-34

-7

292 -4

310

-8

-309 -2

564

149

310

-8

-309 -2

428

-12

-422

-17

1

0 113

525

-7

-249

-38

249

96

-151

-95

4

1

1

194 -8

-193

-66

1

0 57

620

620

-17

1440

-33

514132KONDPRM

407-33

99

-179 99

-179

99

-87

99

-87

1

50

408-46

318

951

514079WARN4

514020RAM-PVT4

-51

514013KURNOOL4

544014ARSUR4

544092KARMDAI

-0

213

45

71

-17

29

-260

12

0

1

24

185

386-39

-291

514021DICHPAL4

514001RSTP

514004KHAM

544090SVCHTRM

544132KAMUTHI-SOLA

524008UDUPI400

510

-18

514092VEMAG-II

514111KVKOTA40

514060SURYPET4

-88

-473 391

-43

148

395-47

0

514019NELLORE4

0

400-40

357

403-45

418-45

58

400-26

514022GAJWEL4

399-31

-11

403-31

514002HYDR

-216

216

514014SIMHADRI399

-19

400-17

514017VEMAGIR4

514051MAILARM4

524007NELMANG4

544114CEPL

514088LANCO-OA

-112

514098HINDJ-OA

514103NELLORE-AP

-91

392-37

372-42

544004TRIC

544096ILFS-OA

397-47

524011KOLAR

544126THERVOI

400-12

1

0 0

544022ALMATI4

544035KORATUR

397-40

397-39

-32

544086MALEKTT

544125PULNTOPE4

-88

32419KOLHPRPG

400-41

-397 -2

400

-62

1

SW

-0

391-45

72

524085EDLAPUR

400-17

680

-118

524034KUDGI-NT

524097CNHALLI

395-45

-55

-71

55

-26

-51

88

52

-172

17

28

-17

-70

90

-45

-89

-89

400-17

-14 -6

14

-81360

-184

524016GULBRG

396-23

-307

-28

310

-31

524086BELLARY-POOL

400-22

-15

69

-15

69

356

-53

356

-53

354

-53

354

-53

524004DAVAN4

514008GOOT

524003RAIC

411

412-46

524083YERAMRS

524002MNRB

1

524076TORNGL4

205

-21

-203

-28

113

-410

30

400-22

92

1201

146

-1148

105

1201

146

-1148

105

510

36

-510

-39

510

36

-510

-39

514133URVKND

433

394-37

524013RAIC-NEW

541003SALE

106-49

178

38

1

178

20

541002MADR

106-45

1

268

41

268

81

511001RSTP

131-34

1

172

10

440

54

754-29

0 583

756-27

526

-132

-700-120

0 572

0 234

32822SOLPR8

769-31

0

518028KURL800

747-34

548127KILPENTR7

79645

548129KARAIKUDI7

83347

743-38

548012CUDL-POL

747-39

548128COIMBTR7

79140

1

1

1

0 565

1

0 572

1

701-91

-524

-208

2

0 233

1157

118

-1151

-86

746-33

518099CPETA800

749-25

-570

-102

-79

-1068

14

-1068

14

1

0

209

1

0 211

518062DICHPALI

759-24

750-27

629

151

-627

-36

1

0

423

572

1298 6

1298 6

1

0

319

518091SRI_POOL

761-3

1484 4

-1470

1

0 327

548072UDNGDI7

84853

1

548008NCHENAI-POOL

76054

1

548124ETPSREP7

75954

1

0 0

0 0

518090NELL-POL

757-27

-282

-93

282

-54

1

0

235

243

753-16

548087TIRUVLM

-229

548003SALE800

518092VEM-II80

518007CUDP800

32806WARDHA8

770-15

-1089

-77

1097

26

1

0

42814ANGL-765

7607

-1174

-3-1174

-3

11

0 592

528003RAIC800

578

518051HYDR_800

548133NCTPSSTG3

79354

1

0 0

402

172

-398

192

402

172

-398

192 402

197

-397

229

402

197

-397

229

1005

471

-932

426

1005

471

-932

426

1

TRANSMISSION SYSTEM STUDIES FOR 2016-17 TIME FRAME

Bus - Base voltage (kV)Branch - MW/MvarEquipment - MW/Mvar

kV: <=110.000 <=132.000 <=220.000 <=230.000 <=400.000 <=765.000 >765.000

410-44

544021KUDAN4

412-40

534000KOCHIN4

400-50

534002TRIVAND4

401-47

544005MADURAI4

399-47

409

-10

-407

-43

492

3

-490

-37

-286

-53

289

29

-190

-83

191 5

-75

-19

75

-74

99

-99

-51

0 57

116

80

1801

139

544018TIRUNEL4

534001TNRT

90

21

-89

-71

397-50

-130 71

-40 -36

9

-15

371

-7

395-47

544003SALE

-9 65

9

-100

199

-123

199

-123

544041METTUR4

400-46

130R

544007HOSUR4

375-44

524001SMNH

369-45

544001NYVL

400-39

79

175

4

175

4

372-41

524077BIDADI

371-44

369-44

-255

-68

-255

-68

338

-82

-336

68

0 -736

373-42

27

-410

371

121

524009HASSAN4

524010MYSORE4

383-43

524044HIRY

524006TALAGUP4

395-36

35

-116

-34

53

-396

-3-396

-3

-416

-14

420 2

534003KOZIKOD4

394-50

269

-124

-266

49

400-32

351

52

-348

-129

1020

122

393-35

397-32

399-29

381-42

514028KURL-NEW

397-31

514093NEL-POOL

399-25

-342

-33

-338

-41

-331

-42

375 -2

375 -2

-231

4 -308

-49

311

-36

365

-32

-365

29

-157

-165

-157

0

52

524082BELLARY

400-17

-845

34

868

107

-147

-106

137

524012KAIGA

400-34

524047NAREND-4

397-36

-76

-82

76 -5

-12

14

-69

-6

-53

-135

-46

136

-9

1020

1446

400-29

-96

118

-96

118

305 1

715

269

514023MAHABUB4

401-32

-305 28

374

29

524005HOODI4

322

38

-221

-21

-221

-21

514003NSAG

400-31

52

-5

16 -4

400-28

393-33

164

-47

163

-35

-161

-8

-124

-81

308

-20

-305

-6

2342

35

514009CHAND-SR

403-21

514052MALKARM4

392-33

398-28

-223

-43

571

11

-342

-1

329

216

-14

-218

-93

-37

-31

0 -355

-16

-57

514007CUDP

392-35

242

76

945

-122

868

-223

544087TIRUVLM

393-36

-1037

204

-355

-241

399-28

514024CHITOR

394-36

544002MADR

396-37

399-37

400-40

-416

-53

420

-28

-200

-21

200 7

-45 -7

61

-91

-61

28

-393

-5

399

-36

-752 75

755

-56

80

-61

23

-57

544088VALLU TP

400-36

398-37

-17

262 1

-22

-32

22

-12

376

-51

-374

29

262

-157

1276

-99

544073PONDY4

398-40

-180

-14

114

-0714

15

544020NEY_IIEX

-193

15

544013PUGALUR4

-230

134

230

-129

-22

-92

23

19

544010NEYEXTN4

400-39

37

-6-80

410-46

-317

75

-39

-54

544017KARAIK

413-46

36

-73

66

-55

544095TUTI-POOL

407-42

212

-111

-212 16

514089SIMHP-OA

400-23

400-22

911

-20

911

-20

546

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1

CEA 1

General Network Access(GNA)

Central Electricity AuthorityDecember 2013

Ensuring adequacy in the planning and development of Inter State Transmission System

Annex-III

CEA 2

Existing Mechanism for Transmission Access

Connectivity for Generator with ISTS:No charges payable & no commitment to provide

access – no transmission strengthening

LTA (Point to Point): - Adequate transmission system get planned and implemented.

LTA (Target Region) – part transmission system gets planned, may be insufficient

MTOA/STOA: - no transmission strengthening, uses margins in existing transmission system

CEA 3

WR(36.8 GW) -27

NR(5.8 GW) -5.6

SR(18.6 GW) -13.4

ER(21 GW) -3.2

NER(0.42 GW) -

0.029.0

8.1

0.7

0.080.08

0.1

0.16

0.7

0.4

8.7

3.8

1.4

0.2

CEA 4

Congestion – due to inadequate transmission system planned and increasing STOA/MTOA transactions (from 8 BU in 2007 to 50 BU in 2013)

For LTA (target region) :Burden of additional PoC charges (for target as well as actual drawal point)

While availing MTOA/ STOA, no preference over those having mere connectivity.

Disproportionate payment of PoC charges –disadvantage to Generators /Utilities who follow long term PPA vis-à-vis those who over-inject/ over-draw than their LTA

Concerns in existing approach

CEA 5

% Drawal above LTA quantum

CEA 6

System to be planned based on Generator/ Demand quantum and their location without knowing the contracted source of purchase/ sale

The generator and the States/Consumer could be given general network access (GNA) to ISTS for the agreed quantum of power (MW)

For grant of GNAGenerator will not have to specify drawal pointsDrawee entity will not have to specify injection points

Generators mandated to take GNA corresponding to their ex-bus capacity (other than captive)

A GNA agreement with generators/drawing entity could become the driver for investment in transmission - GNA to be assessed at least with 4-5 years in advance

New approach - General Network Access

CEA 7

Cont..

Existing transmission service – ‘Connectivity (as per the CERC)’ and LTA (target regions) for IPPs may be discontinued in view of GNA

Any power transfer beyond the GNA capacity may be entertained only through STOA service at a premium rate (say 100%)

The concept of PoC charges and GNA are not path specific or point to point specific. Accordingly, in GNA transmission charges would determined by the GNA quantum and PoC rate for that point

7

New approach - General Network Access

CEA 8

For GeneratorsGenerators to get all India access with flexibility to change point of drawalGenerators not be liable to pay for notional point of drawal chargesGenerators will not have to declare target beneficiaries

For Drawing EntitiesReliable access for short term and medium term market. This will be a great comfort to OA consumers as well as DISCOMs.States empowered to determine their GNA requirement and get the ISTS built for it.DISCOMs will be able buy cheap power with certainty through the PX at where the competition is intense - will benefit consumers

Benefits under GNA

CEA 9

The GNA may be for a period of 12 years( to ensure recovery of investment in transmission )

For scheduling under GNA, it is proposed that - the LTA (P-to-P) can be for a minimum period of 5 yearsMTOA for one year fixed tenure, with window opening twice a year, The STOA for period up to 1 monthThe difference between LTA/ MTA/ STOA users may be in the priority of scheduling

Tenures under GNA mechanism

CEA 10

Thanks

Documents

Central Electricity Authority -As per Address list enclosed-