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.
Salient features of OA
- Commercial mechanism for transmission pricing for long , medium and short term open access including UI and transactions through exchange.
- Approval of open access for the desired quantum and period of supply.
- Non-discriminatory open access.
- Freedom for scheduling of power.
- Freedom to revise the open access or cancellation thereof.
- Policies could be different for ‘Advance Scheduling’, ‘Day-ahead Scheduling’ or ‘Booking of Open access’, as the case may be.
- Freedom to market that could boost the growth.
- Appropriate settlement mechanism.
Categorization of open access customers
1. Long-term access customer
A long-term open access customer is one who avails open access for a period of 12 years to 25 years.
2. Medium-term open access customer
A medium-term open access customer is one who avails open access for a period of 3 months to 3 years.
3. Short-term open access customer
A short-term open access customer is one who avails open access for a period upto one month at one time.
Open Access: Key Success Factors
- Control area demarcation & boundary metering
- Robust transmission system
- Assessment of Transfer Capability
- Balancing mechanism
- Methodology for transmission charge sharing
- Treatment of transmission losses
- Streamlined scheduling and settlement mechanism
- Transparency and non-discriminatory implementation
- Dispute redressal mechanism
- Congestion management
Inter-State Transmission System
- Any system for conveyance of electricity by means of main transmission line from the territory of one State to another State.
- The conveyance of electricity across the territory of an intervening State which is incidental to such inter-State transmission of electricity.
- The transmission of electricity within a State on a system built, owned, operated, maintained or controlled by CTU.
Intra-State Transmission System
- Other than inter-State transmission
OPEN ACCESS CHARGES
- Charges in case of complete or partial approval
- Transmission Charges (as determined by CERC)
- Wheeling Charges (as determined by CERC)
- Imbalance (UI) Charges
- Reactive Energy Charges
- Interconnection Charges
- Connectivity Charges
- Operating Charges (SLDC charges)
- Charges irrespective of whether approval is granted or not
- Application Process fees of respective RLDCs and SLDCs (if any)
Agencies involved in Open Access Transaction
- National Load Dispatch Centre
- Regional Load Dispatch Centre(s)
- State Load Dispatch Centre(s)
- Central Transmission Utility
- State Transmission Utility(s)
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