The Haryana Electricity Regulatory Commission (HERC) has released regulations for the deviation settlement mechanism to maintain grid security and discipline. These will apply to electricity conveyance transactions through short, medium, or long-term open access through intra-state transmission systems, including inter-state wheeling, provided that the capacity is at least 10 MW. The regulations cover both open access generators and regenerators, as well as buyers such as distribution licensees, deemed licensees, and fully open access consumers connected to the intra-state grid. State entities must inform the state load despatch centre (SLDC) of all energy contracts and operate their assets under the Indian and Haryana state electricity grid codes.
The framework includes provisions on scheduling and despatch, the measurement of deviations, and the operation of the state deviation pool account. Scheduling will follow a defined daily time block, starting from 00:00 and ending at 24:00 hours. The northern regional load despatch centre and northern regional power committee will adhere to the time blocks Buyers and sellers must comply with the procedures outlined by the SLDC, which will also compute deviations due to under/overdrawal or injection. These calculations will determine deviation charges for each scheduling period. Penalties for gaming are included, with the HERC empowered to conduct inquiries. The settlement mechanism will use the highest of three defined rates for deviation charges, based on weighted average area clearing prices from day-ahead and real-time market segments and ancillary service charges.
The SLDC will issue monthly energy account statements and weekly deviation charge statements. All collected payments and late payment interests will be credited to the state deviation pool account, for which the SLDC will maintain separate books. Deviation charges are a high priority and must be cleared within seven days. Within three months of the regulation’s notification, the SLDC must establish business rules and operating procedures for the state power committee. This Committee will monitor compliance, guide procedural adjustments, and advise on regulatory changes. The HERC retains authority to modify any regulation provisions as required.
