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Largest sized hydro unit (180 MW at Chamera) in the country

Salient Features Northern Regional Power System Welcome. Reforms Within The State, Trading And Other Issues by ALOK ROY General Manager (NRLDC) POWERGRID, New Delhi. Largest sized hydro unit (180 MW at Chamera) in the country. CS - 2. CS - 1. MPP. Regional Grid. RLDC

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Largest sized hydro unit (180 MW at Chamera) in the country

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  1. Salient Features Northern Regional Power System Welcome Reforms Within The State, Trading And Other Issues by ALOK ROY General Manager (NRLDC) POWERGRID, New Delhi • Largest sized hydro unit (180 MW at Chamera) in the country

  2. CS - 2 CS - 1 MPP Regional Grid RLDC Coordinates State - C State - A State - B Control Areas

  3. STATE GENR. STATE IPP TRADE CENTRAL SHARE SEB’s Grid SLDC Coordinates Directs Trading Trading Discom - A Discom - C Consumer Discom - B Control Areas

  4. I E G C Central Govt.CEA RPC State Govt. SLDC CERC SEB/STU SERC CTU G1 G2 RLDC Intra State System IEGC to Operate on the periphery ISTS ISGS Load X= L - G G L1 L2

  5. Orissa Model G G BC G T D G RC G G : Genco BC : Bulk Consumer T : Transco RC : Retail Consumer D : Discom

  6. Recommended Model NG NG BC D OG OG RC OG OG : Old Genco BC : Bulk Consumer NG : New Genco RC : Retail Consumer D : Discom

  7. How do you buy or sell a commodity • which can not be seen, counted in numbers, or measured in kg, litres or metres, • which can not be put in a container with a forwarding address, on a particular truck taking a particular route, but flows as per laws of physics, • which can not be stored, and whose availability and cost keep changing widely,

  8. which intermingles with all other supplies in an inevitable pool, and can not have an owner’s name tag ? • There is another peculiarity: the buyer has no control over what the seller supplies, and the seller has no control over what the buyer draws from the pool, and the two may not match ! It is crucial to have mechanism for commercial handling of mismatches

  9. 1) Power trading has to be notional : buyer to pay the agreed amount to the supplier for scheduled quantum of power. 2) Payment for variations from the schedule through a common mechanism, e.g. U.I. TO AVOID DISPUTES

  10. TRADER 10 MW 10 MW @ Rs. 2.00/ u @ Rs. 2.20/ u A B AGREEMENTS B ACTUAL FLOW A 12 MW 8 MW GRID

  11. TRADER Rs. 2.20/ u for 10 MW Rs. 2.00/ u for 10 MW PAYMENTS A B UI for 2 MW UI for 2 MW UI POOL A/C

  12. An Example: Suppose TATA POWER want to sell 100 MW to Discom- A in Andhra Pradesh STEPS : • TPC and Discom-A to agree on terms and conditions of sale • TPC to get the consent of MSEB and “no-objection” of MSERC • Discom-A to get the consent of APTransco and “no- objection” of APSERC

  13. MSLDC and APSLDC to ascertain transmission adequacy, and agree to arrange necessary metering, scheduling, energy accounting and UI settlement • WRLDC and SRLDC to ascertain transmission adequacy in their regional transmission systems • All concerned to have a common understanding about treatment / sharing of transmission losses, and levy of transmission/ wheeling charges for the use of intra-State and inter-State systems

  14. WRLDC SRLDC SCHEDULING, METERING, UI SETTLEMENT MSEB / MSLDC AP TRANSCO/ APLDC TATA POWER DISCOM-A AGREEMENT & PAYMENT FOR SCHEDULED QUANTUM

  15. “Open Access’ means • Nondiscriminatory provision for use of transmission line or distribution system or associated facilities with such line or system by any licensee or consumer or a person engaged in generation in accordance with the regulations specified by the Appropriate Commission. • Under sub-section (2) of Section 38, CTU is obliged to provide nondiscriminatory open access to its transmission system for use by • (i) any licensee or generating company on payment of transmission charges; or • (ii) any consumer as and when such open access is provided by the State Commission under sub-section (2) of Section 42, on payment of transmission charges and a surcharge thereon as may be specified by the Central Commission

  16. A MORE GENERAL DEFINITION OF “OPEN ACCESS” “Enabling of non-discriminatory sale/ purchase of electric power/energy between two parties utilizing the system of an in- between (third party), and not blocking it on unreasonable grounds”

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