Central Electricity Regulatory Commission recently announced draft notification for the sharing of the inter-state transmission charges and losses regulations, 2019. These regulations will be applicable to all Designated ISTS Customers, Inter-State Transmission Licensees, National Load Despatch Centre (NLDC), Regional Load Despatch Centres (RLDCs), State Load Despatch Centres (SLDCs) and Regional Power Committees (RPCs). The proposed changes from the previous amendment are as follows:

If the Long-term Access ISTS granted to a generating station on existing margins and COD of the generating station is delayed, transmission charges at 10% of transmission charge for the State where it is located for the quantum of such Long Term Access need to be paid by the generating stations.

Generating stations drawing start-up power will have to pay the transmission charges at the Transmission Deviation rate for the State in which they are physically located.

A generating station which is connected to both ISTS and intra-State Transmission System, the ISTS charges and losses will be applicable only on the quantum of Long Term Access and Medium Term Open Access connected through ISTS and STU charges & losses will not be applicable on such capacity connected through ISTS. This will be applicable only when adequate capacity is available to be drawn.

The notification is still a draft document and will come into effect after getting notified in the gazette. Apart from this development, the Ministry of Power in a recent order has waived off the interstate transmission charges & losses for all the wind & solar plants for sale of power from such projects commissioned to 31st March 2022. This waiver is only applicable to wind & solar plants awarded through competitive bidding.