National Grid (India)

The National Grid is the high-voltage electricity transmission network in India, connecting power stations and major substations and ensuring that electricity generated anywhere in India can be used to satisfy demand elsewhere.^[1] The National Grid is owned, and maintained by state-owned Power Grid Corporation of India and operated by state-owned Power System Operation Corporation. It is one of the largest operational synchronous grids in the world with 417.68 GW of installed power generation capacity as of 31 May 2023. ^[2]

India's grid is connected as a wide area synchronous grid nominally running at 50 Hz. The permissible range of the frequency band is 49.5-50.5 Hz, effective 17 September 2012. The Union Government regulates grid frequency by requiring States to pay more when they draw power at low frequencies.^[3] There are also synchronous interconnections to Bhutan, and asynchronous links with Bangladesh, Myanmar, and Nepal.^[4] An undersea interconnection to Sri Lanka (India–Sri Lanka HVDC Interconnection) has also been proposed. A proposed interconnection between Myanmar and Thailand would facilitate the creation of a power pool and enable trading among all BIMSTEC nations.^[5]

^ "Areas of national grid". Archived from the original on 20 October 2016. Retrieved 19 October 2016.
^ "All India Installed Capacity of Utility Power Stations" (PDF). Retrieved 10 July 2020.
^ Bhaskar, Utpal (30 July 2013). "CERC plans to further narrow frequency band for national grid". Livemint. Retrieved 2 December 2016.
^ "Grid Security – Need For Tightening of Frequency Band & Other Measures" (PDF). Central Electricity Regulatory Commission. Retrieved 2 December 2016.
^ "BIMSTEC needs a 'power tool'; here's why it is time for a green energy revolution". The Financial Express. 3 January 2017. Retrieved 27 May 2017.