NTPC Issues 4 GWh BESS Tender For Thermal Stations

NTPC Limited has invited bids for a 4,000 MWh battery energy storage system (BESS) at its thermal power stations. The last date to submit the tenders is September 19, 2025.

The tender allocates 300 MW/1,200 MWh and 1,400 MW/2,800 MWh capacities across 11 locations, all at 400 kV/220 kV/132 kV Points of Interconnection. The BESS will have a designed service life of 12 years. The tender said that it should be capable of two operational cycles per day.

The tender explained that the BESS will include Battery System, Battery Management System (BMS), Energy Management System (EMS) and SCADA, Power Conversion System (PCS).

Additionally, the NTPC tender also included a protection system, a Communication System, an  HT & LT System, an Auxiliary power system, Fire Fighting, remote control and monitoring, and all other associated materials and accessories necessary for trouble-free operation and maintenance of the BESS system.

The tender also offers a Comprehensive Annual Maintenance Contract (CAMC) of the BESS system for 12 years from the date of completion of the Performance Guarantee (PG) Test.

NTPC Previous BESS Projects

Last fiscal year, NTPC Group reported 20 GW of pumped storage projects in the pipeline. In an investors’ call, NTPC and NTPC Green Energy Ltd Director (Finance) Jaikumar Srinivasan said preliminary feasibility reports had been completed for 18 projects, with detailed project reports underway for four of them.

NTPC has also been expanding its BESS portfolio through multiple tenders. Its renewable energy arm, NTPC REL, recently called bids for a 2,500 MW/10,000 MWh BESS project at thermal power stations. Additionally, earlier, NTPC had also issued a tender to develop and test a pilot BESS to replace diesel generators at the Dadri Thermal Plant.