Sunfire's key technology is the Solid Oxide Power Core – a stack of high-temperature Solid Oxide Cells (SOCs).
Solid Oxide Cells convert chemical energy from a gaseous fuel into electricity and heat through a chemical reaction with an oxidizing agent (oxygen from air) in a continuous process. Unlike conventional fuel cells, which only run on hydrogen, Sunfire fuel cells can also be operated with different hydrocarbons, such as natural gas, bio gas, liquid petroleum gas (LPG) and several liquid hydrocarbon fuels (methanol, ethanol, diesel).
Furthermore, the stack is designed to match the needs of highly efficient fuel cell systems by providing very low pressure drops (both on the fuel and the air side) and a high fuel utilization by its optimized gas distribution.
The customer benefits from a long experience with more than two million hours of operation experience in the field and a cost-optimized stack design consists of electrolyte supported, planar cells, using a sheet metal cassette as an interconnector. The Sunfire stack design is best suited for a large scale industrialized production due to its composition of easy to source materials and its producibility in simple standard manufacturing processes.