New Delhi, June 16
THE Central Electricity Regulatory Commission (CERC) has added a new chapter on Inter-Regional Energy Exchange in the revised draft of the Indian Electricity Grid Code to enhance grid security and ensure energy balance among the five regions of the country.
The Commission has invited public comments on the proposed changes up to July 15.The Grid Code has been revised in the light of the various provisions of the Electricity Act 2003 and the operational experience gained since February 2000 when the Grid Code was first implemented by CERC for inter-State transmission, a CERC release said.
The release said that with the improvement in the frequency regime after implementation of availability-based tariff in all regions of the country, it has become possible to introduce free governor mode of operation of generating units, which automatically corrects the frequency fluctuations.
The revised grid code has set out a time table from October 1 for implementation of Free Governor Mode of Operation of various generating units in thermal generating units of installed capacity of 200 MW and above and reservoir-based hydro units of installed capacity of 50 MW and above in the southern, eastern, northern and western regions and all thermal and reservoir-based generating installed capacity of 10 MW and above in the north-eastern region.
In order to improve voltages, the revised Grid Code proposes to levy reactive energy charges on power flows on all inter-State transmission lines, the release added.