NTPC has invited expressions of interest (EoI) to develop a pilot or utility-scale project for a compressed air-based, including liquified air-based, long-duration energy storage system (LDES) with a storage capacity of up to 1,000 MWh. The last date to submit the bids is February 23, 2026, and bids will be opened the following day. The EoI does not require any earnest money deposit or bank guarantee at this stage.
