State-run power producer NTPC has invited an Expression of Interest (EoI) from Indian and global firms to set up 1 GWh of grid-scale battery energy storage system (BESS) at its power plants in India. The BESS may be deployed at a single location or split across multiple NTPC power plants.
The applicants identified through the EoI shall be asked to submit proposals for undertaking projects.
NTPC Limited produces around 300 billion units of electricity annually through its more than 65 GW capacity comprising gas, coal, hydro and renewable energy based power stations across the country. Further, it plans to reach an installed power generation capacity of 130 GW by 2032, with 60 GW from renewables.
NTPC will increasingly be required to operate its conventional fleet flexibly to support the grid as the penetration of variable renewable energy invariably increases in India’s power system. Taking the first move, NTPC is looking to pursue grid-scale BESS in due consultation with POSOCO (an arm of Powergrid Corporation of India Ltd) and the Ministry of Power. The aim is to provide the Indian grid with a flexible storage system, test NTPC’s ability to integrate BESS into its future operational regime, and simultaneously extend the facility for ancillary operations by POSOCO to enhance grid reliability.
The BESS may be deployed along with thermal/RE generators for one or more of the following applications at a time: Store surplus energy during low demand periods and supply stored energy during peak demand hours; supplement thermal generation in meeting the statutory ramp up and ramp down requirements; ancillary services as per grid requirement; and minimize unscheduled interchange (UI) and optimize UI returns.
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