Dongfang Steam Turbine releases China’s first 15-megawatt pure hydrogen gas turbine

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On September 17, the 2025 World Clean Energy Equipment Conference opened in Deyang. At the opening ceremony, the 15-megawatt pure hydrogen gas turbine (G15H) developed by Dongfang Steam Turbine, a subsidiary of Dongfang Electric Group, was officially unveiled. This achievement represents a dual breakthrough in \"zero-carbon combustion + stable and efficient performance\", and it is also the first fully domestically developed F-class pure hydrogen heavy-duty gas turbine in China. Pure hydrogen gas turbines are high-end power equipment in the energy sector, and they play a key role in enabling the conversion of hydrogen into electricity. They feature zero carbon emissions, low investment per kilowatt, rapid start-up and shutdown, a wide range of regulation time scales, a broad range of adjustable power levels, and the ability to provide deep reactive power compensation. In 2024, the natural gas version of the G15 gas turbine, independently developed by Dongfang Steam Turbine, was successfully manufactured. It has now passed full-load operation tests, providing valuable experience for the application of hydrogen energy technology. Switching the fuel from natural gas to pure hydrogen is equivalent to a heart transplant for a gas turbine. After years of intensive effort by the research and development team at Dongfang Steam Turbines, from development to actual implementation, the product has always adhered to the standard of \"industrial-grade reliability,\" undergoing numerous rounds of rigorous testing. In 2023, visualization tests of pure hydrogen nozzles were completed, overcoming the challenges related to the adaptation of key components ； In the \"full-temperature and full-pressure actual operating condition tests\" conducted in 2024, extreme operating conditions of the unit were simulated, resulting in no backfire or thermoacoustic oscillations throughout the process from ignition to full load operation; its stability reached the level of mature natural gas turbines. Tian Xiaojing, deputy director of the National Key Laboratory of Clean and Efficient Turbine Power Equipment at Dongfang Steam Turbine Co., Ltd., explained that the G15H has the capability to adapt to various applications. In terms of short-term application, G15H features moderate power output and flexible control, enabling it to be used directly in distributed energy stations and cogeneration systems in industrial parks, thereby providing clean and efficient power support for urban development and industrial production ； From a long-term perspective, G15H is the key to overcoming the \"fluctuation problem\" associated with renewable energy; it can work in conjunction with hydrogen storage systems to create a clean \"electricity-hydrogen-electricity\" cycle. Currently, Dongfang Steam Turbine has launched a follow-up testing plan for the G15H, aiming to accelerate the transition of this \"zero-carbon gas turbine\" from a technical achievement to industrial application.