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  1. OPEN ACCESS EXPERIENCES ANDWAY-AHEAD WORKSHOP ON GRID SECURITY AND MANAGEMENT28th and 29th April, 2008 V K Agrawal, General Manager, SRLDC

  2. OPEN ACCESS: DEFINITION AS PER ELECTRICITY ACT, 2003 Section 2 (47) “Open access” means the non-discriminatory provision for the use of transmission lines or distribution system or associated facilities with such lines or system by any licensee or consumer or a person engaged in generation in accordance with the regulations specified by the Appropriate Commission;”

  3. CERC Open Access Regulations, 2008 3.Subject to any other regulations specified by the Commission, the long-term customer shall have first priority for using the inter-State transmission system for the designated use. These Regulations shall apply for utilization of surplus capacity available thereafter on the inter-State transmission system by virtue of- (a)Inherent design margins; (b) Margins available due to variations in power flows; (c ) Margins available due to in-built spare transmission capacity created to cater to future load growth or generation addition:

  4. CERC Open Access Regulations, 2008 Effective 01.04.2008 Regulations cover only Short-term Open Access Transactions categorized as Bilateral and Collective (through PX) Earlier Products of Short-Term retained under Bilateral Transactions Nodal Agency Bilateral : RLDCs Collective : NLDC

  5. CERC Open Access Regulations, 2008 Transmission Charges moved from “Contract Path” to “Point of Connection” Both Buyers and Sellers of Collective transactions to bear transmission charges and absorb transmission losses Inter-Regional links -No Separate treatment. Emphasis on “Scheduling” rather than “Reservation” SLDC consent mandated along with application In case of Congestion – e-Bidding without Price Cap Exit Option provided with payment of up to 5 days open access charges. Moving towards empowerment of SLDCs

  6. Regulation 2004 of CERC Regulations on Short-Term Open Access (06.05.2004 to 31.03.2005) • Open Access Duration • - Up to One year maximum -single application possible • ST Rate • - in Rs/MW/Day - Min. Charges for one day • Transmission Charges • a. Intra Regional – 25% of Long Term Charges • b. Inter Regional – 25% of Long Term Charges • Operating Charges • a. Application fee – Rs. 5000/- • b. Scheduling Charges • – Rs. 3000/day for each RLDC involved • – Rs. 3000/day for each SLDC involved • c. Handling &Service Charges - 2% of total charges

  7. Regulation 2004 (Amendment 2005)of CERC Regulations on Short Term Open Access (01.04.2005 to 31.03.2008) • Open Access Duration • - Up to three months -single application possible • ST Rate • - in Rs/MW/Day • - Charges as per continuous block of up to 6 hours, 12 hours, • and more than 12 hours • Transmission Charges • a. Intra Regional – 25% of Long Term Charges • b. Inter Regional – 50% of Long Term Charges • Operating Charges • a. Application fee – Rs. 5000/- • b. Scheduling Charges • – Rs. 3000/day for each RLDC involved • – Rs. 1000/day for each RLDC involved • c. Handling &Service Charges - Nil

  8. Regulation 2008 of CERC Regulationson Short Term Open Access (From 01.04.2008) • Open Access Duration • - Bilateral -Up to 3 months separate application for each month • Collective: -Only Day ahead • ST Rate • - in Rs/MWh - Based on Scheduled Energy • Transmission Charges • Bilateral: • Rs.30/MWh – intra- regional • Rs.60/MWh – Between adjacent regions • Rs90/MWh – Wheeling through one or more region • Collective Transactions (Px): • -Rs. 30/MWh for each point of injection and drawal

  9. Regulation 2008 of CERC Regulationson Short Term Open Access Contd … Operating Charges Bilateral: a. Application fee – Rs. 5000/- b. Scheduling Charges – Rs. 2000/day for each RLDC involved – Rs. 2000/day for each SLDC involved c. Handling & Service Charges –Nil Collective Transactions: a. Application fee – Rs. 5000/- b. Scheduling Charges – Rs. 5000/day to NLDC for each State involved ; -NLDC to Share with RLDCs

  10. Comparison of CERC Regulations on Short-Term Open Access (Regulation 2004, Amendment 2005 and Regulations 2008)

  11. Comparison of CERC Regulations on Short-Term Open Access (Regulation 2004, Amendment 2005 and Regulations 2008)

  12. UI vs STOA market (All regions) 100% power market 92% long term market 5% UI market 3% STOA market

  13. All India basis

  14. STOA – EXPERIENCES Applications Processed (Since Beginning) > 20,000 No. Volume (Approved Energy) (Since Beginning) > 90BUs Applications Approved > 95 % Refusal/Non-consent by SLDCs > 3 - 4% Refusal due to system constraints < 0.5 %

  15. STOA – EXPERIENCES Transactions between extreme corners of the country RGCCPP ( Kayamkulam) to PSEB Arunachal Pradesh(NER) to PSEB TNEB to J&K Large number of Captive Generating plants used STOA and helped in enhancing the power availability in grid. Ugar Sugars (KAR) - JAIPUR (RAJASTHAN) Godavari Sugars (KAR) - MSEDCL NCS Sugar(ANDHRA) – GUVNL Indorama ( MAH) – APPCC ( ANDHRA)

  16. STOA – EXPERIENCES Due to High demand in the regions, the costly power has been traded through STOA RGCCPP ( Kayamkulam) (NAPTHA) to PSEB BSES(KERALA) (DIESEL) to NDMC (DELHI) Diversity being gainfully utilised by Market players under STOA Generators PLF has also increased.

  17. Issues Skewed load – generation scenario Increased line loading Consents by STU/SLDC for injection of power by embedded customers Telemetry Metering Scheduling PPAs

  18. Empowering SLDCs UI Settlement of Intra state entities Before the Implementation of Open Access Regulations 2008, for deviations Various STU/SLDCs are charging differently for embedded customers. In the New Open Access Regulations the issue is addressed Functional Autonomy of SLDC

  19. TYPICALSTOA CASE - 1 APTRANSCO to MPSEB 100 MW for One day from 0000 to 0600 hrs.

  20. MP WR GRID HVDC BACK TO BACK AT BHADRWATHI IN WR AP APTRANSCO - MPSEB THROUGH NVVNL (0000 HRS – 0600 HRS ) 100MW AT INJECTION POINT for 1 day CUSTOMER: NVVNL TRADER: NVVNL INJECTING UTILITY APTRANSCO DRAWEE UTILITY MPSEB • INTERVENING REGIONAL LINK • SR-WR CAPACITY APPROVED 100 MW DAILY PERIOD 0000-0600HRS

  21. MP WR GRID HVDC BACK TO BACK AT BHADRWATHI IN WR AP APTRANSCO - MPSEB THROUGH NVVNL (0000 HRS – 0600 HRS ) 100MW AT INJECTION POINT for 1 day EXPORT AT AP 100 MW LOSSES IN SR 3.12% AT SR PERIPHERY 96.9 MW CTU LOSSES IN WR 4% MP RECIEVES 93.0 MW TOTAL LOSSES FOR TRANSACTION 7.0 MW

  22. MP WR GRID HVDC BACK TO BACK AT BHADRWATHI IN WR AP APTRANSCO - MPSEB THROUGH NVVNL (0000 HRS – 0600 HRS ) 100MW AT INJECTION POINT for 1 day Payments as per Regulation 2004 of CERC APPLICATION PROCESSING FEE Rs 5000 PER TRANSACTION • SCHEDULING CHARGES PER DAY • Rs 3000 FOR SRLDC • Rs 3000 FOR WRLDC • TRANSMISSION CHARGES PER MW PER DAY • Rs 700.91 FOR CTU-SR • Rs 881.49 FOR SR-WR LINK • Rs 339.98 FOR CTU-WR TOTAL TRANSMISSION CHARGE PER UNIT 34.53Ps/.

  23. MP WR GRID HVDC BACK TO BACK AT BHADRWATHI IN WR AP APTRANSCO - MPSEB THROUGH NVVNL (0000 HRS – 0600 HRS ) 100MW AT INJECTION POINT for 1 day Payments as per Regulation 2004 Amendment 2005) of CERC APPLICATION PROCESSING FEE Rs 5000 PER TRANSACTION • SCHEDULING CHARGES PER DAY • Rs 3000 FOR SRLDC • Rs 3000 FOR WRLDC • TRANSMISSION CHARGES PER MW PER DAY • Rs 700.91 FOR CTU-SR • Rs 881.49 FOR SR-WR LINK • Rs 339.98 FOR CTU-WR TOTAL TRANSMISSION CHARGE PER UNIT 13.52Ps/.

  24. MP WR GRID HVDC BACK TO BACK AT BHADRWATHI IN WR AP APTRANSCO - MPSEB THROUGH NVVNL (0000 HRS – 0600 HRS ) 100MW AT INJECTION POINT for 1 day Payments as per Regulation 2008 of CERC APPLICATION PROCESSING FEE Rs 5000 PER TRANSACTION • SCHEDULING CHARGES PER DAY • Rs 2000 FOR SRLDC • Rs 2000 FOR WRLDC • TRANSMISSION CHARGES • Rs 90 /MWH FOR WHEELING TOTAL TRANSMISSION CHARGE PER UNIT 7.83Ps/.

  25. Comparison of CERC Regulations on Short-Term Open Access (Regulation 2004, Amendment 2005 and Regulations 2008)

  26. TYPICALSTOA CASE - 2 KAYAMKULAM RGCCPP, NTPC to PSEB 150 MW for 31 days on Round the Clock basis

  27. SR STOA OF KSEB(RGCCPP) - PSEB 0000 HRS – 2400 HRS150MW AT RGCCPP EXBUS POINT for 31 days PSEB NR CUSTOMER: NVVNL TRADER: NVVNL HVDC BACK TO BACK AT VINDHYACHAL IN WR INJECTING UTILITY KYCPP,KSEB DRAWEE UTILITY PSEB WR INTERVENING REGION WR HVDC BACK TO BACK AT BHADRWATHI IN WR • INTERVENING REGIONAL LINK • SR-WR • WR-NR INTERVENING STATE TRANSMISSION UTILITYKSEB KERALA CAPACITY APPROVED 150 MW DAILY PERIOD 0000-2400 HRS KAYAMKULAM RGCCPP NTPC)

  28. LOSSES IN KERALA 0.75% AT KERALA PERIPHERY 148.9 MW LOSSES IN SR 3.12% AT SR-WR PERIPHERY 144.3 MW SR LOSSES IN WR 4.0% AT WR-NR PERIPHERY 138.5 MW STOA OF KSEB(RGCCPP) - PSEB 0000 HRS – 2400 HRS150MW AT RGCCPP EXBUS POINT for 31 days PSEB NR EXPORT AT RGCCPP BUS 150 MW HVDC BACK TO BACK AT VINDHYACHAL IN WR WR HVDC BACK TO BACK AT BHADRWATHI IN WR KERALA LOSSES IN NR 3.0% PSEB RECIEVES 134.4 MW KAYAMKULAM RGCCPP(NTPC)

  29. SR STOA OF KSEB(RGCCPP) - PSEB 0000 HRS – 2400 HRS150MW AT RGCCPP EXBUS POINT for 31 days Payments as per Regulation 2004 of CERC PSEB APPLICATION PROCESSING FEE Rs 5000 PER TRANSACTION NR • SCHEDULING CHARGES PER DAY • Rs 3000 FOR SRLDC • Rs 3000 FOR WRLDC • Rs 3000 FOR NRLDC • Rs 3000 FOR KSEB HVDC BACK TO BACK AT VINDHYACHAL IN WR WR HVDC BACK TO BACK AT BHADRWATHI IN WR • TRANSMISSION CHARGES PER MW PER DAY • Rs 700.91 FOR CTU-SR • Rs 881.49 FOR SR-WR LINK • Rs 339.98 FOR CTU-WR • Rs 233.32 FOR WR-NR LINK • Rs 649.86 FOR CTU-NR • Rs 672.07 FOR KSEB KERALA TOTAL TRANSMISSION CHARGES PER UNIT 15.12Ps KAYAMKULAM RGCCPP(NTPC)

  30. STOA OF KSEB(RGCCPP) - PSEB 0000 HRS – 2400 HRS150MW AT RGCCPP EXBUS POINT for 31 days SR Payments as per Regulation 2004 Amendment 2005) of CERC PSEB NR APPLICATION PROCESSING FEE Rs 5000 PER TRANSACTION • SCHEDULING CHARGES PER DAY • Rs 3000 FOR SRLDC • Rs 3000 FOR WRLDC • Rs 3000 FOR NRLDC • Rs 1000 FOR KSEB HVDC BACK TO BACK AT VINDHYACHAL IN WR WR HVDC BACK TO BACK AT BHADRWATHI IN WR • TRANSMISSION CHARGES PER MW PER DAY • Rs 843 FOR CTU-SR • Rs 1311 FOR SR-WR LINK • Rs 357 FOR CTU-WR • Rs 600 FOR WR-NR LINK • Rs 594 FOR CTU-NR • Rs 672.07 FOR KSEB KERALA TOTAL TRANSMISSION CHARGES PER UNIT 18.5Ps KAYAMKULAM RGCCPP(NTPC)

  31. STOA OF KSEB(RGCCPP) - PSEB 0000 HRS – 2400 HRS150MW AT RGCCPP EXBUS POINT for 31 days SR Payments as per Regulation 2008 of CERC PSEB NR APPLICATION PROCESSING FEE Rs 5000 PER TRANSACTION HVDC BACK TO BACK AT VINDHYACHAL IN WR • SCHEDULING CHARGES PER DAY • Rs 2000 FOR SRLDC • Rs 2000 FOR WRLDC • Rs 2000 FOR NRLDC • Rs 2000 FOR KSEB WR HVDC BACK TO BACK AT BHADRWATHI IN WR • TRANSMISSION CHARGES PER MWHR • Rs 90 FOR Bilateral Wheeling • through one or more region • Rs 30 FOR KSEB KERALA TOTAL TRANSMISSION CHARGES PER UNIT 12.2Ps KAYAMKULAM RGCCPP(NTPC)

  32. Comparison of CERC Regulations on Short-Term Open Access (Regulation 2004, Amendment 2005 and Regulations 2008)

  33. THANK YOU