NTPC rolls out CO2 Battery storage project at Kudgi

NTPC Ltd has launched a CO2 battery energy storage project at its Kudgi superthermal power station in Bijapur district, Karnataka, India.

NETRA, NTPC’s R&D division, will oversee the project in collaboration with Triveni Turbine and Italian CO2 battery technology company Energy Dome. NTPC Kudgi will host a CO2 battery with a 160 MWh of energy storage capacity. The project will support NTPC’s strategy to adopt long-duration energy storage (LDES) technologies for cost-effective, round-the-clock green power as it expands its renewable energy capacity. Unlike electrochemical battery energy storage systems, the CO2 battery operates on specialized electro-mechanical turbomachinery. It follows a “Closed Brayton Thermodynamic Cycle,” using anhydrous CO2 as the process fluid. The system stores and releases electricity by shifting CO2 between vapor and liquid states.