Hydrogen fuel cell power plant

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.

Theoretical thermal water splitting efficiencies. [ 10 ]
60% efficient at 1000° C
Steam reforming of hydrocarbons to hydrogen is 70-85% efficient [ 11 ]