दव ण त र य व द य त सवमवत

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2 भ रत सरक र GOVERNMENT OF INDIA व द य त म त र लय MINISTRY OF POWER क द र य व द य त प र व करण CENTRAL ELECTRICITY AUTHORITY दव ण त र य व द य त सवमवत SOUTHERN REGIONAL POWER COMMITTEE छब ब सव ब ठक क क र यव त MINUTES OF THE 26 TH MEETING ब गल र BENGALURU

3 CONTENTS 1. INTRODUCTION CONFIRMATION OF THE MINUTES OF 25 th MEETING OF SRPC UPCOMING TRANSMISSION SYSTEM RANSMISSION LINES APPROVED IN 37 th MEETING OF SCPSPSR NEW PROJECTS OF NTPC, NLC, NPCIL, JOINT VENTURE& UMPP NEW PROJECTS OF STATE SECTOR & IPP COAL STOCK POSITION IN THERMAL STATIONS OF SOUTHERN REGION SIMHADRI STPS SCHEDULES FOR TO EMERGENCY RESTORATION SYSTEM (ERS) PROGRESS OF BUS/LINE REACTORS TO BE COMMISSIONED IN SR STUDY GROUP OF SLDCs TO ASSESS TTC/ATC AND OPERATIONAL PLANNING SEMs ON ALL FEEDERS FOR SECTIONAL LOSSES IEGC RELATED ISSUES REQUIRING ATTENTION/ACTION REVIEW OF PERFORMANCE OF ULDC SCHEME PENDING ARREARS PAYMENT BETWEEN BENEFICIARY STATES IN SR OUTSTANDING DUES BETWEEN WR & SR UNIFORM RATE OF CHANGE OF FREQUENCY RELIEF SCHEME (df/dt) TO BE ADOPTED THROUGHOUT THE COUNTRY SPS FOR OVERLOADING OF 400 kv KOLAR HOSUR LINES DETAILS OF PENDING REMEDIAL MEASURES DISCUSSED AND FINALIZED IN PCC WHEELING CHARGES PAYABLE BY GOA TO KARNATAKA UTILIZATION OF TERTIARY WINDING OF ICTS FOR AUXILIARY POWER SUPPLY IN SUBSTATIONS PROCUREMENT OF 500 MVA ICT AS SPARE INSTEAD OF 315 MVA ICT APPROVED UNDER RAMAGUNDAM TRANSMISSION SYSTEM PROCUREMENT OF 3x125 MVAR REACTORS INSTEAD OF 3 x 50 MVAR REACTORS APPROVED UNDER RAMAGUNDAM TRANSMISSION SYSTEM CONVERTING FIXED LINE REACTORS INTO SWITCHABLE LINE REACTORS IN OVER COMPENSATED LINES CERC ORDER ON UPCL POWER EVACUATION ISSUE Minutes of the 26 th Meeting of SRPC held on 20 th December of 73

4 26. RE-CONSTITUTION OF THE VALIDATION COMMITTEE UNDER REGULATION 7(1)(g) (SHARING OF INTER STATE TRANSMISSION CHARGES AND LOSSES) REGULATIONS, UTILIZATION OF PSDF TO DEVELOP INTER- STATE TRANSMISSION SYSTEM TO RELIEVE TRANSMISSION CONSTRAINTS EARLY COMMISSIONING OF 765 kv VEMAGIRI-KHAMMAM-HYDERABAD- WARDHA TRANSMISSION SYSTEM FOR THE ENHANCEMENT OF INTER REGIONAL TRANSMISSION CAPACITY BETWEEN NEW GRID AND SR PUBLISHING THE RESULTS OF SYSTEM STUDIES BY CTU IN COMPLIANCE WITH REGULATION 20 OF THE CERC (GRANT OF CONNECTIVITY, LONG TERM AND MEDIUM TERM OPEN ACCESS) REGULATIONS, DIFFERENCE IN COMPUTATION OF CAPACITY CHARGES OF NTPC STATIONS AS PER CERC REGULATIONS ( ) KPTCL DENYING NOC FOR OPEN ACCESS FOR POWER CONTRACTED FROM UDUPI POWER CORPORATION LTD DOUBLING OF 110 KV KONAJE-MANJESHWARAM S/C FEEDER PROVISION OF ADDITIONAL SPACE IN SRPC SECRETARIAT / OTHER CIVIL WORKS S3 REGION TO BE FORMED BY BIFURCATING S2 AND ATC TO BE CALCULATED FOR S2-S3 REGION BY FOLLOWING THE N-1 CONDITION IN 400 kv UDUMALPET PALAKKAD D/C LINES GRID OPERATION DEMAND VARIATION (Peak Vs Off-peak) FREQUENCY OF OPERATION OF SOUTHERN GRID URTDSM (PMU) PROJECT IN SOUTHERN REGION DRAWAL POINTS OF COASTAL ENERGEN PAYMENT OF TRANSMISSION CHARGES & OPENING OF LC FOR DRAWAL OF START UP POWER DURING COMMSSIOING PERIOD BY GENERATING STATIONS AUDITING OF ACCOUNT - ANNUAL SUBSCRIPTION FOR CONDUCTING VARIOUS COMMITTEE MEETINGS OF SRPC DATE & VENUE OF THE NEXT SRPC MEETING VOTE OF THANKS/PLACING ON RECORD CONTRIBUTIONS Minutes of the 26 th Meeting of SRPC held on 20 th December of 73

5 SOUTHERN REGIONAL POWER COMMITTEE BENGALURU MINUTES OF THE 26 th MEETING OF SRPC HELD AT VISAKHAPATNAM ON 20 th DECEMBER INTRODUCTION 1.1 The 26 th Meeting of Southern Regional Power Committee was held at Visakhapatnam on 20 th December The list of participants is furnished at Annexure-I. 1.2 Shri R.P.Sasmal, Director (Operations), PGCIL welcomed all Members to the 26 th Meeting of SRPC. He stated that it was a great pleasure hosting the SRPC Meeting at Visakhapatnam. He thanked all constituents for the continued support and confidence reposed in PGCIL. He also informed that on 10 th December 2014, Government of India had issued a Circular for implementing the much awaited 6,000 MW Raigarh Pugalur HVDC project by PGCIL. He hoped that in this Meeting, SRPC would look into the problems being faced in execution of transmission schemes. Transmission system was required to be implemented, keeping in view anticipated growth for the next 10 to 15 years. In the recent past there had been substantial improvement in the SR transmission system especially after synchronization with NEW grid. 1.3 Shri S.R.Bhat, Member Secretary, SRPC welcomed all the Members and delegates to the Meeting. He extended a special welcome to Shri G.Kumar Naik, Chairperson, SRPC & MD, KPTCL. He also thanked Shri R.P.Sasmal, Director (Operations), PGCIL and the entire team of PGCIL for the excellent arrangements for the conduct of the Meeting. 1.4 Shri G.Kumar Naik, Chairperson, SRPC& MD, KPTCL welcomed all the Members to the Meeting and thanked Director (Operations), PGCIL for the nice arrangements. He noted that in the SRPC Meeting, various coordination issues of Southern Region were being deliberated and the way forward to resolve these challenges was being evolved. The concerns of all constituents on various issues could be further deliberated in this Meeting and consensus could be arrived at. He stated that the contribution of Shri K. Gnanadesikan, erstwhile Chairman, TNEB required special mention for providing inspiration and guidance during his association with SRPC forum. 1.5 SRPC welcomed the following new Members: Shri M. Maheshwar Rao, MD, KPCL Dr M. Saikumar, Chairman, TANTRANSCO Shri D. Prabhakar Rao, CMD TSTRANSCO & TSGENCO Minutes of the 26 th Meeting of SRPC held on 20 th December of 73

6 1.6 SRPC also placed on record the excellent services rendered by the following outgoing Members: Shri K. Gnanadesikan, Chairman, TANTRANSCO Shri S. A. M Rizvi, CMD, TSTRANSCO Shri Ritesh Kumar Singh, MD, KPCL Shri K. Vikraman Nair, Director (Tr & SO), KSEB 2. CONFIRMATION OF THE MINUTES OF 25 th MEETING OF SRPC The Minutes of the 25 th Meeting of Southern Regional Power Committee held on 26 th July 2014 held at Chennai were confirmed. 3. UPCOMING TRANSMISSION SYSTEM 3.1 Perspective Transmission Plan for Twenty Years ( ) Highlights MoP in association with CEA, CTU and POSOCO had brought out the Perspective Transmission Plan for 20 Years ( ) and following are the highlights: Load generation balance shows that deficit in Southern Region is about 13,000 to 19,100 MW at the end of 13 th Plan ( ) conditions. Summary of Inter- Regional Transmission Capacity Corridor towards SR is given below: Transmission Element Existing Transmission Capacity in MW 12 th Plan addition End of 12 th Plan 13 th Plan addition Balimela-Upper Sileru 220kV S/c Gazuwaka HVDC back-to-back Talcher-Kolar HVDC bipole Upgradation of Talcher-Kolar HVDC Bipole Total Angul - Srikakulam 765kV D/c line Angul - Srikakulam 765kV D/c line (2nd) EAST-SOUTH ,030 Chandrapur HVDC back-to-back Kolhapur-Belgaum 220kV D/c Ponda Nagajheri 220kV D/c Raichur - Sholapur 765kV S/c line (PG) Raichur - Sholapur 765kV S/c line (Pvt. Sector) Narendra - Kolhapur 765kV D/c (ch at 400kV) Wardha - Nizamabad 765kV D/c line Raigarh - Pugalur +/- 800kV, 6000 MW Bi-pole Warora Pool - Warangal 765kV D/c line WEST - SOUTH ,320 Minutes of the 26 th Meeting of SRPC held on 20 th December of 73

7 ISTS drawal requirement of each State in had been assessed as follows : State Demand Met MW Peak Demand as p EPS Increment Load State Generation Despatch Import requirement through ISTS %ge of Peak AP % Karnataka % Kerala % TN % Telangana % State wise annual peak demand for SR constituents is as given below : State/UT 14 th Plan (as per EPS) th Plan (as per EPS) AP/Telangana Karnataka Kerala TN Puducherry Estimate for Southern Region 1,18,764 1,65,336 1,88,730 Load generation balance shows the import assessment for Southern Region in different scenarios as given below : Generation Scenario Scenario I (Normal Generation as per plan / resource availability) Scenario II (Less gas met through imported coal with respect to Scenario I) 14 th Plan ( ) 15 th Plan ( ) Requirement for Major Transmission Corridors had been assessed as given below : 13 th Plan 14 th Plan 15 th Plan ( ) ( ) ( ) ER/NER-SR WR-SR SR-Sri Lanka Minutes of the 26 th Meeting of SRPC held on 20 th December of 73

8 3.1.2 For coordinated development process aiming at perspective optimization in meeting growth targets, it was thought appropriate that State Transmission Utilities prepare their State Electricity Plans appropriately, focusing on specific requirements of the concerned State. In Petition No SM/011/2014 before Hon ble CERC, it had been stipulated that CTU and STUs shall coordinate with each other and other agencies so that implementation of ISTS and associated downstream/upstream ISTS is carried out in a matching time frame so that no asset remains stranded or underutilized and the intended purpose of the scheme was realized The following had been noted in the TCC Meeting: In earlier Meetings, it had been suggested that a Big Picture be deliberated in SRPC forum which would help in assessment of bottlenecks and ensure timely corrective actions. MoP in association with CEA/CTU/POSOCO had come up with Perspective Transmission Plan for coming two decades. The plan was under draft stage and comments had been sought. The need for coordinated development by CTU and STU had been highlighted for optimal planning and utilization of transmission assets. In a recent petition before Hon ble CERC, the issue regarding stranded assets due to non-completion of downstream assets was being heard. Proof of coordination and action taken by the concerned utilities had been sought. Section 38 (2) and Section 39 (2) of the Electricity Act clearly demarcate the responsibility of CTU and STU in the process. CTU had stated that the projected ISTS import requirements for the states was quite high and varying between 39% and 82%. Regional Demand which was currently around 38,500 MW was expected to rise by 50,000 MW and reach about 87,500 MW by By , the demand of SR was expected to rise to 1, 19,000 MW (about current all India demand). An action plan with concerted efforts was therefore required, considering the quantum jump in demand and various bottlenecks likely in development of the transmission system. CTU had suggested constitution of a Task Force in this regard. KPTCL had observed that KPTCL was planning 1,000 Km of 400 kv transmission lines. It was noted that the Tables projected pertained to the likely LGBR considering requirement as per EPS figures and anticipated availability as per proposed generation addition etc. The difference between requirement and local availability indicated the level of dependence on ISTS in bridging the gap. TSTRANSCO had stated that state generation dispatch for the year appeared to be on the lower side. The State Government was having ambitious plan for generation additions and the drawal from ISTS could be of the order of about 9,640 MW. It was suggested to TSTRANSCO that they may convey revised projected figures to CEA at an early date. SRLDC had observed that state network too was required to be built in a coordinated manner with ISTS for effective and full utilization. Minutes of the 26 th Meeting of SRPC held on 20 th December of 73

9 MS, SRPC had said that the Plan had been prepared with due consultation and inputs from the state utilities. However, States could immediately convey their comments to CEA in event of changes. As suggested by PGCIL, a Task Force could be constituted which would validate data; finalize action plan to achieve the desired results and sort out any coordination issue between CTU/STU/Generators. After deliberation, it had been noted that sustained coordination was required between CTU and STU to achieve the desired results. It was therefore agreed to form a Task Force at the level of Chief Engineers to study and validate the LGBR projections, Inter Regional Import requirements, ISTS requirements etc. Task Force would also assess the intra state transmission system requirement (keeping in view the planned network). CTU agreed to be associated with this Task Force In the Meeting MS, SRPC said that critical issues that could arise in the future in respect of upcoming transmission system had been highlighted in the Agenda. The ISTS import requirement assessed was quite high and varied between 39 % and 82 %. SR demand was expected to rise to about 82,000 MW by and 1,19,000 MW by Sustained coordinated effort at regional level was therefore essential in view of the projected quantum jump. Issue of stranded assets on account of nonavailability of downstream systems had been raised in a few petitions and Hon ble CERC had sought the action plan. In this regard it had been decided that a Task Force be formed at the level of Chief Engineer. This mechanism would help develop ISTS and intra state transmission system in a coordinated manner ensuring better utilization Chairperson, SRPC stated that transmission bottlenecks should not come in the way of smooth evacuation. Surplus generation available in different regions had to be made available to needy consumers. He suggested that the Task Force as proposed be formed to study the matter After deliberation, SRPC agreed to form a Task Force at level of Chief Engineer to study and validate the LGBR projections, Inter Regional Import requirements, ISTS requirements etc. Task Force would also assess the intra state transmission requirements. 3.2 Associated Transmission System in respect to 765 kv Raichur-Sholapur lines Additional ATC ( as on date) between WR - SR on account of this link was around 350 (1, ) MW TANTRANSCO vide letter dated 29 th November 2014 (Annexure- II) had stated that status of remaining lines comprising associated transmission system in WR & SR for 765 kv Raichur-Sholapur 2 x S/C line may be deliberated. The probable quantum of Minutes of the 26 th Meeting of SRPC held on 20 th December of 73

10 power increase in WR-SR corridor due to commissioning of new lines in WR & SR had also been proposed to be discussed KSEB vide letter dated 8 th December 2014 (Annexure-III) had stated that status of lines likely to relieve S1-S2 congestion be discussed in the Meeting. Suitable action plan may be evolved for early commissioning of the same, including time frame The following had been noted in the TCC Meeting: Updated status of commissioning of the planned (18 Nos.) transmission elements in WR and SR for proper utilization of 765 kv Raichur-Sholapur line is as follows: Sl. No. Name of Transmission Element 1. Aurangabad- Pune 400 kv D/C 2. Parli-Pune 400 kv D/C 3. Raipur-Wardha 765kV D/C Exe. Agency Date as noted in CEA Mtg. held on Expected date Remarks Reliance Dec Completed Reliance Dec Completed PGCIL May 2014 Nov Commissioned on Comments Delayed forest clearance 4. Raipur 765/400 kv S/S PGCIL Dec Completed It is a pooling station. Interconnecting links Commissioned 5. Wardha- Aurangabad 765kV D/C 6. Aurangabad 765/400 kv S/S PGCIL July 2014 Commissioned in July 2014 PGCIL July 2014 Completed in July 2014 One Circuit Commissioned on against severe RoW constraints Interconnecting network in progress: 400 kv Aurangabad- Padghe (expected in June 2015), 400kV Aurangabad-Boisar (expected in March 2015), 400 kv Padghe - Padghe (Kudus) (expected by June 2015), MSETCL to take up commissioning of Padghe (Kudus) S/S by June 2015 Minutes of the 26 th Meeting of SRPC held on 20 th December of 73

11 7. Sholapur-Pune 765 kv S/C 8. Pune 765/400 kv S/S 9. Gooty- Madhugiri 400 kv D/C 10. Madhugiri 400/220 kv S/S PGCIL Oct.2014 Jan-2015 Pune s/s critical. Line being planned for commissioning earlier bypassing Pune through contingency. Severe RoW problem. PGCIL Oct March 2015 Civil work under progress PGCIL June 2014 March 2015 Critical RoW problems faced towards Karnataka end PGCIL June 2014 March 2015 Erection under progress Sever RoW Problem. Line is being charged through Parli by bypassing Pune S/S which is expected by March 2015 Land acquisitioned delayed, Expected commissioning by March 2015, Civil works and erection activity in progress Hold continues at 10 locations in District Tumkur. Stringing has been stopped since Feb 2014 Downstream network not available 11. Madhugiri- Yelahanka 400 kv D/C line PGCIL June 2014 March 2015 Severe Row Problem Severe RoW problem at Tumkur (30 Loc), Bangalore Rural (35 Loc) and Bangalore Urban (10 Loc) 12. Raichur- Kurnool 765 kv S/C PGCIL Aug Commissioned on Kurnool 765/400 kv S/S PGCIL Aug Commissioned Downstream network ready 14. Kurnool- Thiruvalam 765 kv D/C PGCIL Nov Commissioned on Downstream network ready 15. Thiruvalam 765/400 kv S/S PGCIL Nov kv by Feb kV Commissioned 765 kv by Feb Vijayawada- Nellore 400 kv D/C PGCIL Nov March RoW problem being faced at Krishna Dist. (49 Loc) & Guttur Dist (23 Loc) RoW continuing, efforts being made including the Power Secretries meet in SR Chaired by Union Power Secretary Minutes of the 26 th Meeting of SRPC held on 20 th December of 73

12 17. Nellore- Thiruvalam 400 kv D/C PGCIL Nov Commissioned on Thiruvalam- Melakottaiyur 400 kv D/C PGCIL Nov July 2014 Commissioned on PGCIL had expressed concern that though 400 kv Gooty - Madhugiri D/C line would come up, the downstream system at Madhugiri as well as Yelahanka may not be ready by that time. Stringing on towers was pending on Gooty- Madhugiri lines on account of local compensation issue. Once compensation issues are finalized by Karnataka Govt. the pending works could be completed. SRLDC had stated that the utilities were anticipating increase in ATC with commissioning of new elements. However, in the event downstream system at Madhugiri and Yelahanka did not come up in the matching time frame, it would not be possible to enhance the ATC. KPTCL had informed that Compensation issues were under consideration of the Govt. of Karnataka and would be settled within 3 months. Complete downstream evacuation from Madhugiri and Yelahanka had been planned. 220 kv D/C evacuation lines had been planned from Madhugiri. Initially at Madhugiri, about 500 MVA of evacuation would be possible by July With regard to Yelahanka, KPTCL Board had decided that complete evacuation would be through UG Cable ( 6 kms) since O/H lines were not feasible. 1,500 MVA of evacuation was planned from Yelahanka and KPTCL was going for adequate capacity cables despite the high cost involved. It could take 6 to 8 months for the evacuation system at Yelahanka to come up. Madhugiri and Yelahanka downstream system would come up in stages from June/July 2015.This factor would need to be considered while declaring ATC/TTC for different corridors. CTU had informed that the NEW Grid to SR ATC could be increased by 900 MW with commissioning of 765 kv Sholapur Pune S/C line, 400 kv Gooty- Madhugiri-Yelahanka D/C line and downstream system at Madhugiri and Yelahanka by March It was clarified that presently Madhugiri substation would be charged at 400 kv level. With generation addition etc subsequently, charging at 765 kv level could be planned. Contingency arrangement of bypassing Pune S/S would be in place by March ATC from S1-S2 would be enhanced in stages with commissioning of 765 kv Salem Madhugiri line, 400 kv Mettur- Thiruvalam D/C lines, 400 kv Mysore Kozhikode D/C lines and 400 kv Somanahalli New Salem D/C lines. ATC would also depend on the commissioning of KKNPP (2,000 MW), NTPL (1,000 MW), NLC TS-II Expn (500 MW), BHAVINI (500 MW) and NTECL Vallur 3 rd Unit (500 MW) etc. Earlier during May 2014 TN, Kerala, CTU & CEA were associated in studying ATC/TTC computations. A participative approach with mutually acceptable collective assumptions was required to be adopted to finalize TTC/ATC computation, especially since spatial distribution of loads etc was involved. TANTRANSCO had informed that 400 kv Thiruvalam - Mettur D/C line was stuck up at 7 locations (out of 799 locations) and they were planning to commission the same by January 2015, five months ahead of schedule. The failed Minutes of the 26 th Meeting of SRPC held on 20 th December of 73

13 transformer at Thiruvalam had been replaced by a new transformer and the same would be commissioned within 10 days. MS, SRPC had stressed on the need for participative approach in finalization of ATC/TTC. The same needed to be backed up with technical rationale and assumptions on a collective basis. Some issues had been raised regarding ATC/TTC of CTU and of POSOCO. However, it could be kindly appreciated that the horizons and assumptions in this regard were different. KSEB had suggested that the studies be periodically undertaken with participation from the utilities. It was agreed that the Study Group would also look into various ATC related issues with commissioning of lines and Generation. CTU agreed to associate with the Study Group In the Meeting, CTU informed that additionally around 900 MW of power could be transmitted from NEW grid to SR with the commissioning of new elements by March ED, SRLDC pointed out that additionally Thiruvalam-Mettur and Somanahalli Salem lines as well as downstream system at Madhugiri & Yelahanka S/S was needed to be in place for enhancement in ATC MS, SRPC said that it had been agreed that a Study Committee would look into ATC/TTC related aspects. A number of issues had been raised on TTC/ATC computations of CTU & NLDC. However, it could be kindly appreciated that the horizons, assumptions etc were different for both the studies COO, CTU informed that certain MTOA Applications had been received in regard to which action was required to be completed by 10 th January Preliminary studies had been carried out in this regard. She suggested that a Meeting of SR constituents be held shortly to arrive on a consensus for the ATC between S1-S After deliberations, it was agreed that a Meeting would be conducted on 29 th December 2014 at Bengaluru to look into the ATC issues. MS, SRPC requested CTU to kindly furnish the study results in advance to the constituents so that the participants could come prepared for the Meeting. CTU agreed to furnish the details of load flow studies to the constituents in advance ED, SRTS-I informed that during the last one and half years, PGCIL had completed more than 10 major elements in SR. In respect of Gooty -Madhugiri line, 10 foundations and around 75 Km of stringing was left which could have been completed as committed. There was demand for stringing corridor to be paid, which was not in accordance with provisions of the Indian Telegraph Act Compensation issue had been taken up with Government of Karnataka at the highest level. Local State Minutes of the 26 th Meeting of SRPC held on 20 th December of 73

14 Administration at Madhugiri had informed that unless corridor issue was settled, stringing could not be carried out. On 7 th July 2014, the local Administration had issued an Order covering the stringing corridor payment which was around Rs.16 Crores. Petition had been filed with Hon ble CERC in this regard and order was awaited. Gooty -Madhugiri line was transiting 15 Kms in Karnataka and another 15 Kms is Andhra Pradesh before reentering Karnataka. Farmers in AP were demanding higher compensation not only for Gooty - Madhugiri line but also for lines coming in other parts of Andhra Pradesh (Vijayawada Nellore, Vijayawada area etc.). Once directions were received on the pending Petitions, works would be taken up MS, SRPC said that KPTCL had informed that from Madhugiri S/S, around 500 MW of evacuation would be possible by July 2015 while evacuation from Yelahanka substation would be through underground cable. He added that the downstream system needed to be in place for proper utilization of ISTS Director (Tr.), KPTCL informed that tender for Madhugiri evacuation system had been floated, opened and was in the finalization stage. Regarding evacuation at Yelahanka, after commissioning of cable (tender to be floated) the 220 kv substation would be back charged upto 400/220 kv Yelahanka substation of PGCIL. In case 400 kv S/S and upstream was charged by PGCIL by that time, power could be drawn MD, TANTRANSCO informed that Mettur-Thiruvalam line would be commissioned by January Status of upcoming Inter-Regional links Narendra-Kolhapur 765 kv D/C line Transmission Element Kolhapur- Narendra (New) 765 kv D/C line (initially charged at 400 kv) LILO of both circuits of Kolhapur Mapusa 400 kv D/C line at Kolhapur Narendra (New) Narendra (Existing) 400 kv (quad) D/C line Implement -ing Agency Line length (ckm)/ MVA Capacity Sch. COD Ant COD/ Act COD PGCIL 376 April 15 Dec 15 PGCIL 90 April 15 Dec 15 PGCIL 354 April 15 Dec 15 Constraints/ Remarks Completion matching with Kudgi S/S (Land acquired in Feb 14). Efforts being made to complete in Completion matching with S/S. Efforts being made to complete in Completion matching with S/S. Efforts being made to complete in Minutes of the 26 th Meeting of SRPC held on 20 th December of 73

15 Kolhapur 765/ 400 kv S/S (GIS) (initially charged at 400 kv) Narendra (New) 765/ 400 kv S/S (GIS) (initially charged at 400 kv) Extn. at Narendra (Existing) 400/ 220 kv S/S Kudgi TPS Narendra (new) 400 kv 2xD/C Line Narendra (new) - Madhugiri 765 kv D/C Line Madhugiri - Bidadi 400 kv D/C (quad) Line PGCIL April 15 Dec 15 PGCIL April 15 Dec 15 PGCIL April 15 Dec 15 M/s Kudgi Transmissi on Limited (L&T Infrastruct ure Developm ent Projects Ltd.) Feb 15 Dec 15 Dec The following had been noted in the TCC Meeting: Dec 15 Sept 16 Sept 16 Award placed in Feb 14. Engg. & Civil works under progress. Award placed in Mar 14. Land acquired in Feb 14. Civil works under progress. Award placed in Mar 14. Engg. in progress. Completion matching with Narendra- Kolhapur line. SRLDC had pointed out that Kudgi generation would get stranded in case 400 kv Kudgi-Narendra (New), Narendra (New) Madhugiri and Madhugiri - Bidadi lines get delayed. There could be issues relating to drawal of Startup Power as well. NTPC and KPTCL had clarified that startup power was being arranged through 220 kv system of KPTCL and the system was in advanced stage of commissioning The Committee noted the above Wardha - Nizamabad 765 kv D/C line Transmission Element Implementing Agency Line length (ckm)/ MVA Capacity Sch. COD Ant COD/ Act COD Constraints/ Remarks Wardha-Nizamabad 765 kv D/C line PGCIL 250 Wardha Raipur PS 765 kv D/C line PGCIL 713 Dec 15 Commissioned on Extn. of Raipur 765 kv S/S PGCIL Dec 15 Completed Minutes of the 26 th Meeting of SRPC held on 20 th December of 73

16 Extn. of Wardha 765 kv S/S Wardha Aurangabad 765 kv D/C line PGCIL Dec 15 June 15 PGCIL 701 Dec 15 July 14 Engg. & Civil Works under progress Extn. of Aurangabad 765 kv S/S PGCIL Dec 15 Feb 15 Completed Extn. of Wardha 765 kv S/S Nizamabad- Maheshwaram PG (Hyderabad) 765 kv D/C line Nizamabad- Dichipalli 400 kv D/C line Nizamabad- Yeddumailaram (Shankarapalli) 400 kv D/C line Maheshwaram PG 765/400 kv, 2x1500 MVA S/S Nizamabad 765/400 kv, 2x1500 MVA S/S PGCIL Dec 15 Feb 15 PGCIL 250 PGCIL PGCIL PGCIL Award placed in June 13. Engg., supply, civil works & erection are under progress This line along with Maheshwaram PG - Mahboobnagar 400 kv D/C line was recommended for implementation through tariff based competitive bidding (TBCB) route. Project was recommended to GoI for notification In the TCC Meeting, CTU had informed that regarding 765 kv Wardha- Nizamabad D/C lines, tenders had been floated In the Meeting, POWERGRID informed that the line from Wardha to Dichipally was under the scope of PGCIL while Nizamabad Sankarapalli under TBCB route. TSTRANSCO requested that the Nizamabad Sankarapalli line be executed by POWERGRID in view of its criticality. Minutes of the 26 th Meeting of SRPC held on 20 th December of 73

17 3.3.3 WR-SR 6000 MW HVDC Bipole Link [Raigarh (Chhatisgarh) -Pugalur/Trichur (TN/KER)] Transmission Element WR-SR HVDC Bipole Link [Raighar (Chhatisgarh) - Pugalur (Tamil Nadu)] Implementing Agency PGCIL Line length (ckm)/ MVA Capacity COD Sch. Ant / Act Constraints/ Remarks Raigarh (existing) - Raigarh (HVDC Stn) 400 kv 2xD/C (quad) lines 6000 MW, HVDC Terminal Station at Raigarh 6000 MW, HVDC terminal Station at Pugalur (or alternatively (i) with 4000 MW HVDC terminal, and (ii) 2000 MW HVDC terminal at Madakathara, and inter-connection with existing 400 kv AC Substation at Madakathara. Raigarh (HVDC Stn) - Pugalur(HVDC Stn) 6000 MW, +/- 800 kv HVDC bipole. Pugalur HVDC station-pugalur existing S/S 400 kv D/C(Q) Line Pugalur HVDC station-arasur S/S 400 kv D/C (Q) line with 80 MVAR switchable line reactor at Arasur end. Pugalur HVDC station-thiruvalam S/S 400 kv D/C (Q) line with 80 MVAR switchable line reactor at both ends Pugalur HVDC station- Edayarpalayam S/S400 kv D/C (Q) line with 63 MVAR switchable line reactor at Edayarpalayam end Edayarpalayam S/S-Udumalpet S/S400 kv D/C (Q) Line The scheme was originally designed for import of 4000 MW and put up before SCPSPSR- 36 for approval. However, to cater to the huge import requirement of power, the Committee suggested that studies for 6000 MW capacity and additional strengthening be carried out and put up for discussion in the next Standing Committee (37 th ) meeting. Accordingly the scheme has been modified and discussed in SCPSPSR- 37, when KSEB requested to construct this link as a multi-terminal HVDC with one Inverter station of 4000 MW at Pugalur and another Inverter station of 2000 MW capacity at Madakathara in Kerala by extending the same HVDC up to Madakathara to enable it to import power from outside. It was decided that the same would be explored and finalized in the next meeting of SCPSPSR. 400/230 kv, 2x500 MVA, Edayarpalayam S/S with 2x125 MVAR bus reactors. 2x500 Minutes of the 26 th Meeting of SRPC held on 20 th December of 73

18 The matter regarding proposed HVDC link between Raigarh - Pugalur had been discussed in the 25 th Meeting of SRPC. After discussions it had been felt prudent to recommend to Ministry of Power that this proposed link be developed by Power Grid Corporation at the earliest. Only Power Grid Corporation had the desired technical and financial expertise to take up the project in a timely manner. Accordingly, Chairperson, SRPC vide letter dated 25 th September 2014 (Annexure-IV) had taken up the matter with Secretary (Power), Government of India The following had been noted in the TCC Meeting: PGCIL had appraised the forum about the different configurations and technology options for Multi-Terminal HVDC Link. Decision on the configuration and technology option was critical. In one option, the voltage level from Pugalur to Madakathara could be brought down thereby considerably reducing the RoW requirement. Use of cable partially in Kerala portion could also be contemplated. On a query it was informed that this would be the third link of +/- 800 kv, the first being from North East to Agra and the second one from Champa to Kurukshetra. KPTCL had suggested that usage of Covered Conductor could be explored which would help considerably reduce the RoW requirement on the Pugalur - Madakathara Section. It was agreed that PGCIL would circulate different technology options/configurations for consideration. The matter would be further deliberated in the Standing Committee on Power System Planning In the Meeting, Director (O), PGCIL said that HVDC system upto Pugalur (6,000 MW) would be implemented by PGCIL. He however observed that construction of transmission lines within Kerala was rather difficult. PGCIL had been stuck up with one line in Kerala for the past 7 years or so. He suggested that Kerala may take care of evacuation within the state. Kerala could also consider transmission through cable for which the technology would be different. PGCIL would place the Order for the HVDC station (at Trichur) but execution would be after completion of line by Kerala. PGCIL would not like to jeopardize the HVDC link because of transmission constraints in Kerala Chief Engineer (Tr.), KSEB informed that they were exploring all possibilities and within one or two weeks, the option may get finalized. Reducing voltage from 800 kv to 266 kv and bringing in a new line at 266 kv level was one option. All possible options would be considered and in case required KSEB may also take up construction of the line. He requested full support from PGCIL in the design and engineering aspects. Minutes of the 26 th Meeting of SRPC held on 20 th December of 73

19 Director (O), PGCIL said any option proposed by KSEB would need to be put up to Standing Committee for further deliberations. He added that N-1 contingency had already been factored in and 6,000 MW of power would be available even after outage of one block Director (Tr.), KPTCL suggested that on account of severe RoW issues in Kerala, the proposed terminal at Trichur could instead be located at Mysore. The power deficit northern part of Kerala could then be fed from Mysore. He stated that system studies could help decide the location of the terminal Chief Engineer (Tr.), KSEB observed that the terminal location at Trichur had already been frozen and should not be reopened MD, TANTRANSCO stated that 4,000 MW of power evacuation at Pugalur end was needed to be ensured, irrespective of location of the other landing point CTU pointed that the scheme (landing point etc) had already been deliberated and agreed in the 37 th Standing Committee on Power System Planning The Committee observed that the scheme / technology option etc. would be finalized by the Standing Committee Angul - Srikakulam PS 765 kv D/C line Transmission Element Implementing Agency Line length (ckm)/ MVA Capacity Sch. COD Ant / Act Constraints / Remarks Angul - Srikakulam PS 765 kv D/C line Extn. 765/400 kv Angul Sub station 765 kv D/C Angul- Jharsuguda line 765 kv D/C Jharshuguda- Dharamjayagarh line Extn. of 765/ 400 kv Angul SS PGCIL 552 Jun'15 Jun'15 PGCIL 1x1500 Jun'15 Jun'15 PGCIL 570 Dec'15 Dec'15 PGCIL 230 Dec'15 Dec 15 PGCIL Dec'15 Dec 15 Processing of forest case very slow at state govt. level; Critical. Engineering, Civil works under progress. RoW being faced Award placed in May 14. Foundation commenced from Sept 14. Award placed in Aug,13. Engineering & Civil works under progress Minutes of the 26 th Meeting of SRPC held on 20 th December of 73

20 Extn. of 765/ 400 kv Jharshuguda SS Extn. of 765/ 400 kv Dharamjaigarh SS Srikakulam P P- Vemagiri- II Pooling station 765 kv D/C line Srikakulam Pooling Station 765/ 400 kv, 2x1500 MVA PS (400 kv - AIS & 765 kv GIS) PGCIL Dec'15 Dec 15 PGCIL Dec'15 Dec 15 M/s Vizag Transmission Limited (A subsidiary of PGCIL) July 16 PGCIL 2x1500 Jun'15 Jun'15 Award placed in Aug,13. Engineering & Civil works under progress Award placed in Aug,13. Engineering & Civil works under progress Under implementation Engineering, Civil works & supply under progress. Srikakulam Pooling Station Garividi 400 kv (Quad) D/C line with 80 MVAR switchable line reactor at Garividi end. PGCIL The line has been approved as ISTS scheme for implementation in SCPSPSR /220 kv S/S at Maradam (Garividi) APTRANSCO Tenders will be called for shortly Behrampur- Gazuwaka 400 kv D/C line Talcher II Behrampur 400 kv D/C line Talcher II- Rourkela 400 kv D/C Quad line Behrampur 400/220 kv, 2x315 MVA S/S M/s Talcher Transmission Company Limited (Subsidiary of M/s Reliance Power Transmission Company Limited) x315 CERC ROP (for ) enclosed CEA letter : No physical progress visible on ground. The scheme needed to be implemented without any further delay The following had been noted in the TCC Meeting: APTRANSCO had stated that 400 kv Srikakulam Garividi D/C line needs to be expedited. CTU had informed that this line is under TBCB route and APTRANSCO could recommend it to be executed by PGCIL, if so desired. Regarding Talcher-II back up scheme, it was noted that a Petition in this regard was being heard by Hon ble CERC In the Meeting, TSTRANSCO stated that possibility of drawing power by Telangana through Angul- Srikakulam line needed to be examined. CTU clarified that an interregional line would generally help increase the ATC, irrespective of its actual Minutes of the 26 th Meeting of SRPC held on 20 th December of 73

21 connectivity in this region. Increase in Drawal capability of any utility may however depend on the quantity of additional access granted to it CTU informed that evacuation schemes had been discussed and finalized in a comprehensive manner in the 37 th Meeting of Standing Committee. Hyderabad was getting well connected to Wardha and Warora, while evacuation beyond Vemagiri to Chilkalurupeta/Cuddapah was through the TBCB route APTRANSCO suggested that CTU may take up execution of 400 KV Srikakulam Garividi line. They informed that they would take up the matter with Empowered Committee regarding execution by CTU of this line keeping in view the urgency Warora Pool Warangal 765 kv D/C line Transmission Element Warora Pool Warangal 765 kv D/C line Implementing Agency Line length (ckm)/ MVA Capacity Sch. COD Ant / Act Constraints / Remarks This line has been approved as additional inter-regional link for importing power into Southern Region, and recommended for implementation in Southern Region s Standing Committee on Power System Planning in its 37 th meeting held on Warangal (New) Hyderabad 765 kv D/C line Warangal (New) Warangal (existing) 400 kv (quad) D/C line. Warangal (New) Chilakaluripeta 765 kv D/C line Warora 765/400 kv, 2x1500 MVA S/S PGCIL 2x1500 Warangal (New) 765/400 kv, 2x1500 MVA S/S PGCIL 2x1500 Minutes of the 26 th Meeting of SRPC held on 20 th December of 73

22 In the TCC Meeting, CTU had informed that the scheme was discussed in the Empowered Committee and is coming through TBCB route In the Meeting, CMD, TSTRANSCO requested that Warora Warangal Line be kindly expedited. ED, SRTS-I, PGCIL clarified that the lines were to be executed under TBCB route. It was also noted that matter regarding Vemagiri Khammam Hyderabad line was before Hon ble CERC. 3.4 Status of upcoming links having impact on S1-S Following is the updated status of the links having impact on S1-S2 ATC: Sl. No. 1 Transmission Element Schedule Remarks 400/230 kv Thiruvalam S/S and associated LILOs Both the ICTs and LILOs completed by October kv Thiruvalam - Melakottaiyur kv Somanahalli- New Salem June Commissioned on Approval for enhanced compensation is awaited from CC,PGCIL kv Pugalur- Kalavindapattu Both ckts commissioned kv Kurnool-Thiruvalam Commissioned on kv Mettur- Singarapet- Thiruvalam Jan LILO of Kolar- Sriperumbudur at Thiruvalam Commissioned in March kv Mysore-Kozhikode May Held up due to ROW issue kv Mangalore (UPCL ) -Kasargode- Kozhikode Approved by Standing Committee & SRPC. KPTCL stated that they had furnished load flow studies and their comments keeping in view of 2000 MW HVDC link at Madakathara and hence the necessity of the line to be reexamined. KSEB, CTU & SRLDC stated that the line was absolutely essential. Minutes of the 26 th Meeting of SRPC held on 20 th December of 73

23 3.4.2 It had been noted that CTU had not been specifying the ATC of S1 S2 corridor. CTU/POSOCO were to appraise the forum of the schedule of release of ATC. TANTRANSCO vide letter dated 29 th November 2014 (refer Annexure-II) had stated that the present status of erection work of lines to relieve S1-S2 corridor congestion may please be discussed. In addition, Karnataka had to cater their Yerandahalli load of 80 MW from Somanahalli itself. It had also been stated that though SPS on 400 kv Hosur-Salem D/C line had been provided by Tamil Nadu, the ATC had not been increased. Further, due to drawal of KSEB, the flow on 400 kv Kolar-Hosur D/C line was always maintained high The following had been noted in the TCC Meeting: KPTCL had stated that with regard to proposed UPCL-Kozhikode line, they had furnished their comments, keeping in view the planned 2,000 MW HVDC terminal at Madakathara. It had been opined that the scheme needed to be justified technically before looking into any commercial issue. SRLDC had stated that the UPCL-Kozhikode line was necessary from the reliability point of view. Under PoC regime, transmission charges would be borne by the concerned utility using the system. CTU stated that the scheme had been planned keeping in view comprehensive perspective LGB scenario. PGCIL also observed that presently there was no N-1 reliability for the UPCL plant. This link would thus improve reliability under N-1 contingency. They also informed that a site survey had been carried out recently with the participation of CEA. MS, SRPC noted that the scheme had been agreed in the Standing Committee and also by SRPC. KSEB had observed that all concerned issues had been studied and subsequently only the scheme had been approved. The line was absolutely necessary for connectivity to North Kerala. Two more units were also likely to come up in the UPCL complex; hence the requirement of the line is more justified. Regarding Thiruvalam- Mettur line, MD, TANTRANSCO informed that the line was held up at 14 towers due to NGT clearances. They were hopeful of getting the line through by January In the Meeting, ED, SRTS- II, PGCIL informed that order regarding enhanced compensation in respect of 400 kv Somanahalli- New Salem line was awaited. PGCIL Management would take a suitable decision in this regard MD, TANTRANSCO stated that shut down of 45 days in respect of Somanahalli Salem line could be allowed during wind season in TN (after April / May 2015) Director (Tr.), KPTCL informed that in view of the changed scenario ( HVDC at Trichur), a letter had been addressed in respect of UPCL- Kasargode Kozhikode line. Minutes of the 26 th Meeting of SRPC held on 20 th December of 73

24 3.4.7 ED, SRLDC said that from the reliability point of view UPCL- Kasargode Kozhikode line was highly essential Chief Engineer (Tr.), KSEB said that the proposed link (UPCL- Kasargode Kozhikode) would help KPTCL also in smooth evacuation of power from UPCL, even under outage of UPCL- Hassan line. He added that joint inspection with participation of CEA had already been carried out. Additional units were also being planned in UPCL. Space for 400 kv substation at Mylatti had been identified. No RoW constraints were anticipated in the Kerala portion of the line. The scheme had already been approved in Standing Committee. He stated that KSEB was not aware of KPTCL letter in this regard and requested for a copy of the same RoW of 400 kv Mysore-Kozhikode D/C line In the 25 th Meeting of SRPC the following had been noted: KSEB had stated that the completion of 400 kv Mysore-Kozhikode (Areakode) D/C line is urgently required since Northern Kerala was facing acute power shortage. Due to forest clearance and RoW disputes, the line work was held up in Karnataka. 400 kv line works in Kerala and construction of 400 kv substation at Areakode had been completed and kept idle for want of this line. KPTCL had informed that Karnataka State Government had constituted an Expert Committee to examine alternative possibilities for this line. The Committee had almost finalized the Report which was expected to be submitted shortly In the 101 st OCC Meeting on 11 th November 2014, SR-II, PGCIL had informed that the works on this line had resumed. The status may please be appraised by POWERGRID. Petition No. 120/MP/2014 was heard by Hon ble CERC on 13 th November The Commission had reserved order in the petition The following had been noted in the TCC Meeting: PGCIL had informed that they had resumed work with support of State Govt. In case conducive environment persisted, they would complete this line by June KSEB had stated that the line was extremely critical for North Kerala. They suggested that PGCIL may deploy multiple agencies to expedite the works. KPTCL had assured that they would continue to support PGCIL for completion of works on this line In the Meeting, CE (Tr. & SO), KSEB reiterated that Mysore Kozhikode line was needed to be commissioned at the earliest, since northern part of Kerala was facing acute constraint. Minutes of the 26 th Meeting of SRPC held on 20 th December of 73

25 3.5 Other upcoming Intra-regional transmission elements Updated status of other critical upcoming lines is given below: Sl. No. Transmission Element Schedule Remarks kv Salem- Madhugiri December 2015 Severe RoW problem near Madhugiri kV Krishnapattanam- Chittoor March 2015 APTRANSCO was requested to expedite commissioning to avoid evacuation constraints. SRLDC had stated evacuation should be restricted to 800 MW kV Almathy-Thiruvalam D/C line Jan.2015 ROW issues at 17 locations kv Edamon-Kochi Held up due to RoW issue. KSEB informed that GO for compensation is awaited. KSEB was requested to settle the compensation issues within one month to enable PGCIL to initiate works In the TCC Meeting, regarding Krishnapattanam - Chittoor, APTRANSCO had informed that they would commission the planned evacuation system by March SRLDC had stated that during the interim period, evacuation had to be restricted to 800 MW from Krishnapattanam JV The Committee noted the above kv Edamon-Kochi line In the 25 th Meeting of SRPC, the following had been noted: POWERGRID had filed a petition before Hon ble CERC seeking provisional tariff on the expenditure incurred on construction of Edamon - Cochin 400 kv D/C (Quad) line till and adjudication of dispute between the petitioner and Govt. of Kerala with regard to the compensation determined by the latter in terms of Section 67 (4) of the Electricity Act. Hon ble CERC had issued RoP in respect of Petition No. MP/083/2014 (date of hearing 17 th June 2014) wherein the following was stated: (d) Under the circumstances, the petitioner finds no way to complete the Projects and seeks recovery of expenditure already incurred in a suitable manner. KSEB had informed that it had been decided that additional compensation of about Rs. 341 Crores would be borne by the Government of Kerala. They were in discussion with PGCIL to work out the schedule and works were likely to commence by mid-august Minutes of the 26 th Meeting of SRPC held on 20 th December of 73

26 In the 101 st OCCM, KSEB had informed that they are extending all support for the early completion of Tirunelveli- Kochi line in Edamon Kochi portion. KSEB had already taken up the task of liaisoning and a senior Executive Engineer has been assigned the dedicated task Petition No. MP/083/2014 was heard by Hon ble CERC on 13 th November The Commission had reserved order in the Petition The following had been noted in the TCC Meeting: PGCIL had expressed concern that despite several Meetings, assurance on compensation issues being settled by Kerala Govt etc. there had virtually been no progress at ground level. Around one and half year ago, PGCIL had stated that they were ready to abandon this line and that KSEB could take over and execute the pending works. KSEB had informed that the G.O. of Kerala Govt. on enhanced compensation was awaited and the same was expected within a month. KSEB assured that RoW issues would be settled enabling PGCIL to take up the works. KSEB was again requested to settle the compensation issues within one month in the interest of speedy completion of pending works In the Meeting, ED, SRTS-II, PGCIL informed that it was becoming extremely difficult for PGCIL to continue with the project. They were willing to wind up the project or else Kerala could take over the line On a query from Chairperson, SRPC on compensation, CE, KSEB informed that compensation at higher rate amounting to Rs.321 Crores would be paid by Government of Kerala for tower foot print as well as corridor also. Steps had been initiated and once GO is issued, compensation issue would get settled kv Trichur-Kozhikode line (Madakkathara- Areakode) The following had been noted till 25 th Meeting of SRPC: KSEB had stated that this line had already been approved as Regional System Strengthening Scheme. North Kerala would benefit since 400 kv supply could be availed either from Udumalpet or from Mysore for all the 400 kv substations in Kerala. Multi circuit & multi-level circuit was their requirement for surrender of corridor. PGCIL had sought utilization of existing 220 kv Madakkathara- Malaparamba-Areakode S/C feeder. There was no possibility of surrender of RoW of KSEB line presently since energy security of Malabar region was involved. Line works could be taken up only after commissioning of the 400 kv Mysore-Kozhikode line. PGCIL had been requested to initiate the process so that construction could commence immediately after 400 kv Mysore-Kozhikode line was commissioned. Minutes of the 26 th Meeting of SRPC held on 20 th December of 73