Most companies are targeting hydrogen gas turbines to be produced in 2030 or 2040: https://www.siemens-energy.com/global/en/news/magazine/2019/hydrogen-capable-

Most companies are targeting hydrogen gas turbines to be produced in 2030 or 2040: https://www.siemens-energy.com/global/en/news/magazine/2019/hydrogen-capable-gas-turbine.html https://www.siemens-energy.com/global/en/news/magazine/2019/... They aren't "off the shelf" technology yet.