The Central Electricity Regulatory Commission (CERC) has notified the draft Deviation Settlement Mechanism and Related Matters (Second Amendment) Regulations, 2025.
The draft amendment proposes to allow limited commercial payment for infirm power injected by thermal generating stations before the successful completion of trial runs. The payment will be made for power injected between first-time synchronisation and completion of the trial run, at the normal rate of charges for deviation, subject to a ceiling of Rs 2.86 per kWh—based on the mean energy charges for FY 2023-24 as per the CERC Annual Report. Further, the amendment stipulates that no payment will be made for any injection of infirm power (either before trial run completion or after, if scheduled) when the system frequency exceeds 50.05 Hz. These changes are aimed at refining the treatment of infirm power while maintaining grid discipline and system frequency stability.