Mumbai, 29 January 2025

 

NTPC announces the launch of CO2 battery energy storage technology - a pioneering step towards sustainable and innovative energy solutions. This cutting-edge project is spearheaded by NETRA, the R&D wing of NTPC, in collaboration with M/s Triveni Turbine Limited and M/s Energy Dome, Italy.

Shri Gurdeep Singh, Chairman & Managing Director, NTPC, stated, “This is a landmark development in the domain of ‘Long Duration Energy Storage’ (LDES). NTPC is proud to be at the technology forefront, setting up the CO2 Battery at its Kudgi station. With numerous advantages such as a very long operational life (>25 years), no requirement for critical minerals like lithium and cobalt, topography agnosticism, minimal performance degradation and 100% depth of discharge this project will open new avenues in the field of electrical energy storage.” Claudio Spadacini, Founder & CEO of Energy Dome, further added that the CO2 Battery will significantly contribute to NTPC’s decarbonization goals and round-the-clock (RTC) power delivery while strengthening India’s local supply chain through domestic sourcing.

A CO2 Battery with an energy capacity of 160 MWh will be set up at NTPC Kudgi. This initiative is a part of NTPC’s broader strategy to diversify its energy portfolio and enhance renewable power generation. Additionally, the CO2 Battery aligns with the Government of India’s ‘Make in India’ and ‘Atmanirbhar Bharat’ initiatives, reinforcing NTPC’s commitment to energy security and self-reliance. Unlike Battery Energy Storage Systems (BESS), which operate on electrochemistry, the CO2 Battery is based on specialized electro-mechanical turbomachinery. It functions on a ‘Closed Brayton Thermodynamic Cycle’ using anhydrous CO2 as the process fluid. The charging and discharging of electricity occur by manipulating the physical parameters of CO2 from vapor to liquid state and vice versa. NTPC remains committed to driving innovation and advancing clean energy solutions, reinforcing its position as a leader in India’s power sector transformation.

 

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