China’s largest integrated PV-hydrogen-storage project has completed construction in east China’s Jiangsu Province. The project, with a total photovoltaic capacity of 400 MW, includes a newly built 220 kV onshore booster station, a hydrogen production facility with a capacity of 1,500 standard cubic metres per hour, and an electrochemical energy storage station.
The project has achieved two major milestones for the first time: 50% green hydrogen co-firing and 100% pure hydrogen combustion. The facility enables hydrogen and pulverised coal to be thoroughly mixed and combusted within the boiler, achieving hydrogen co-firing at a 50% heat input ratio in a 40 MW coal-fired boiler—a world-first application of its kind. The technology can reduce coal consumption and carbon emissions by up to 50%, while also significantly lowering nitrogen oxide (NOx) emissions. With onsite solar and storage, it can also allow use of green hydrogen if required.
Building On Pilot Projects
The latest development follows a large-capacity pilot-scale hydrogen-coal co-firing test conducted on June 7 by Yantai Longyuan Power Technology, a subsidiary of CHN Energy Technology & Environment Limited. The test was carried out at the company’s 40 MW Boiler Clean Combustion Engineering Laboratory.
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The project utilises a fully self-developed low-NOx burner designed for hydrogen-coal co-firing and incorporates a safety protection system covering the entire process, from hydrogen delivery to in-furnace combustion.
Produced using electricity generated from renewable energy sources such as wind and solar power, green hydrogen emits only water when combusted, making it a zero-carbon fuel. According to the project developers, this achievement provides a viable technological pathway for large-scale carbon reduction at China’s existing coal-fired power plants.
The project is also expected to play a significant role in advancing the green and low-carbon transformation of coal-fired power generation while promoting the integrated development of coal power and renewable energy.
