They are larger in scale than backup generators such as the Bloom Energy Server and can be up to 60% efficient in converting hydrogen to electricity.
It opened in 2021 and is one of the first large scale fuel cell power plants for the grid, rather than just a backup generator.
[3][4] Fuel cells produce a lot of hot water and a cogeneration or combined cycle could be used for further benefit or to produce more electricity with a steam turbine, increasing the efficiency to >80% using a Phosphoric acid fuel cell.
[7][8] Another use would be to use the hot water by-product for High-temperature electrolysis for more hydrogen fuel.
[9] High-temperature electrolysis at nuclear power plants could produce hydrogen at scale and more efficiently.