1 March 2021 16:32 GMT Updated 2 March 2021 13:07 GMT Siemens Energy has teamed up with the Intermountain Power Agency cooperative to carry out a conceptual design study on integrating a green hydrogen storage system into a combined cycle power plant in the US and use H2 in gas turbines. The project that won a $200,000 grant from the US Department of Energy late last year is set to begin in March at the 840MW Intermountain Generating Station in Delta, Utah. It will analyse the efficiency and reliability of CO2-free power supply involving large-scale production and storage of hydrogen, and integrate that system into an existing power plant and transmission grid.