NTPC Limited has launched carbon dioxide battery energy storage technology at its Kudgi power station to support decarbonisation and round-the-clock power supply.
Developed by NTPC’s research and development division, NETRA, in collaboration with Triveni Turbine Limited and Italy-based Energy Dome, the battery system will have an energy capacity of 160 MWh. Unlike conventional battery energy storage systems, the carbon dioxide battery operates on a closed Brayton thermodynamic cycle, using anhydrous carbon as the process fluid to charge and discharge electricity by shifting between vapor and liquid phases.