DEMONSTRATION OF ELECTROLYZER OPERATION AT A NUCLEAR PLANT TO ALLOW FOR DYNAMIC PARTICIPATION IN AN ORGANIZED ELECTRICITY MARKET AND IN-HOUSE HYDROGEN SUPPLY

Summary

Constellation Energy Generation, with support from the U.S. Department of Energy (DOE), successfully completed a project demonstrating a 1.25 MW PEM electrolyzer at its Nine Mile Point Nuclear Plant in New York. The facility, which started production on March 7, 2023, produces 560 kilograms of clean hydrogen daily and saves the plant over $800,000 annually in hydrogen purchase costs. The project, costing approximately $13.4 million, proved the viability of using nuclear energy for dynamic hydrogen production, with simulations showing 300 MW and 500 MW electrolyzers could reduce grid frequency deviations by 50.7% and 63% respectively during contingencies. These learnings are being applied to a planned $900 million facility at the LaSalle Clean Energy Center, targeting 33,450 tons of clean hydrogen annually, as part of the MachH2 hydrogen hub, which secured up to $1 billion in DOE funding.

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