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Phone: (801) 972-2455

Ceramatec, Inc.
2425 South 900 West
Salt Lake City, UT 84119

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Solid Oxide Electrolysis Cells

When a high temperature solid oxide fuel cell (SOFC) is operated in a reverse mode to electrolyze steam to generate hydrogen, then it is called a Solid Oxide Electrolysis Cell (SOEC).

Electrolysis of water produces high purity hydrogen directly, with no need for additional clean up. High temperature steam electrolysis, where a portion of the required energy can be supplied as thermal energy, is more efficient than low temperature water electrolysis.

A high temperature electrolysis system will produce about 40% more hydrogen from a given energy input than a conventional water electrolysis system.

With two decades of fuel cell experience, Ceramatec has worked on high temperature Solid Oxide Electrolysis Cells (SOEC) since 2003. A 4-kW steam electrolyzer stack module was operated for more than 2000 hours, and a 17-kW steam electrolyzer was demonstrated at the Idaho National Laboratory using stacks fabricated at Ceramatec.


  • Refineries for oil upgrading
  • Ammonia and other chemicals synthesis
  • Energy Storage