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OPEN ACCES IN INTER-STATE TRANSMISSION. Salient Features of CERC Order / Regulations. Open Access customers categorized : Short-Term STOA - Upto Three Months. Medium –Term MTO - 3 months - Three years Long-Term LTOA - 12- 25 years
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OPEN ACCES IN INTER-STATE TRANSMISSION
Salient Features of CERC Order / Regulations • Open Access customers categorized : Short-Term STOA - Upto Three Months. Medium –Term MTO - 3 months - Three years Long-Term LTOA - 12- 25 years • All Open Access customers to abide by Indian Electricity Grid Code.
INTRODUCTION • Open Access is necessary for utilisation of short time surpluses. • Open Access will create options for distribution companies to buy power. • Open Access will create opportunities for Generators to sell power. • Open Access will provide means to the traders/buyers/sellers.
Agencies involved in Open Access Transaction • RLDC (s) • SLDC (s) • CTU • STU (s) • Buyer • Seller • Trader
Trader Buyer seller
Trader Application (Rs.5000/-) Region 1 Region 2 RLDC SLDC1 Nodal RLDC SLDC2 Req for Consent
Trader CONSENT Region 1 Region 2 Consent SLDC1 RLDC Consent SLDC2 Nodal RLDC Consent
Trader APPROVAL Region 1 Region 2 SLDC1 RLDC Acceptance for scheduling SLDC2 Nodal RLDC
Trader Region 1 Region 2 Stoa charges SLDC1 RLDC SLDC2 Nodal RLDC
Nodal RLDC RLDC Trader Scheduling of power SLDC1 SLDC2 power flow
Type of Application (ADV/FCFS/SD/DA) TRADER /APPLICANT Name Application No. & Date INJECTING Utility DRAWEE Utility TIME duration Quantity Applied ROUTE Intervening States/ Region Application Details Period of transaction FROM Date TO Date
ER STOA TRANSACTIONS WBSEB WR MPSEB WHEELING SR IMPORT TNEB INTRA EXPORT KSEB RGCCPP
ERTS STOA CHARGES (up to Jun’11) WBSEB SLDC WRTS RLDC MPSEB RLDC SRTS RLDC TNEB KSEB CTU SLDC STU RGCCPP
NRTS J&k ERTS RLDC WB WRTS RLDC RLDC MPSEB SRTS AP KSEB POC Charges
NR J&k 1OOMW ER WB WR 1OOMW 1OOMW MPSEB SR 1OOMW AP KSEB 1OOMW POC Charges
Import of APTRANSCO from various Regions HVDC BACK TO BACK AT VINDHYACHAL IN WR RAJASTHAN NR WB DVC AJMER ER WR HVDC BACK TO BACK AT BHADRWATHI IN WR SR HVDC BACK TO BACK AT GAZUWAKA IN SR
POC charges for Import by Aptransco from various locations NR RAJASTHAN NR WB DVC ER POC CHARGES (Rs/MWH) Inj.Withdrawal RAJASTAN 100 150 DVC 140 100 CSPTCL 140 100 KERALA 110 110 APTRANSCO 150 110 WR CSPTCL-WR ER APTRANSCO SR SR KERALA POC
POC Transmission Losses for the Import by Aptransco NR 2.72% RAJASTHAN NR DVC ER WB POC losses (Zonal) applicable RAJASTAN 1.03% DVC 1.20% CSPTCL 2.20% KERALA 2.00% APTRANSCO 2.30% 3.80% 2.40% WR CSPTCL-WR ER APTRANSCO SR SR 4.6% KERALA POC charges..\nrc
Import of 100MW by Aptransco NR 2.72% RAJASTHAN NR DVC ER WB POC / STOA CHARGES(Rs) RAJASTAN 15120000 / 21711800 DVC 18000000 / 30351800 CSPTCL 18000000 / 44031800 KERALA 15840000 / 22311800 3.80% 2.40% WR CSPTCL-WR ER APTRANSCO SR SR 4.6% KERALA POC/ STOA charges..\nrc