NTPC has approved an investment proposal for a 4.7 GWh battery energy storage system (BESS) with an estimated project cost of ₹58.22 billion (~$623.22 million).

Recently, NTPC announced the winners of its auction to set up 2,334 MWh of BESS at its thermal power stations across Karnataka, Maharashtra, Bihar, Andhra Pradesh, and Telangana (Lot-I).

NTPC and its subsidiaries have issued several BESS project tenders since 2025 to augment its energy storage capacity.

In February, NTPC Renewable Energy issued an engineering, procurement, and construction (EPC) tender for a grid-connected 250 MW/1,000 MWh energy storage system at its Bikaner Solar project in Rajasthan.

Last December, NTPC floated an EPC tender to set up 2,670 MWh of BESS at nine of its thermal power stations across six states under Lot-2.

In the same month, NTPC Vidyut Vyapar Nigam issued a request for selection for BESS developers to establish a 125 MW/500 MWh standalone BESS project in Chhattisgarh.

In August, NTPC Green Energy invited bids for the EPC of 80 MW/320 MWh BESS at Kerala State Electricity Board’s Pothencode and Sreekantapuram substations.

In February 2025, the Ministry of Power mandated that all Renewable Energy Implementing Agencies (REIAs), including NTPC,  and state utilities incorporate a minimum two-hour co-located energy storage system equivalent to 10% of the installed solar capacity in all solar tenders.

In an advisory to REIAs, state governments, and generating stations, MoP said distribution licensees could also consider mandating two-hour storage with rooftop solar installations. If the proposed mandates are implemented, the government expects approximately 14 GW/28 GWh of storage to be installed by 2030.

India added nearly 547 MWh of battery energy storage capacity in 2025, around 26% year-over-year increase from over 433 MWh, according to the newly released 2H & Annual 2025 India’s Energy Storage Landscape Report by Mercom India Research. India’s cumulative installed battery energy storage capacity reached almost 1,082 MWh as of December 2025.