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24 February 2006 - FuelCell Energy's Direct FuelCell Turbine has achieved a benchmark of 56 per cent electrical efficiency in the sub-MW class for 800 continuous hours.

A statement released from the company read: "This significantly exceeds the electrical efficiency of other distributed generation technologies of similar size. For example, gas engines have an electrical efficiency of 30 to 42 per cent, low temperature fuel cells have an electrical efficiency of 30 to 35 per cent and microturbines have an electrical efficiency of 25 to 30 per cent."

FuelCell Energy has been developing the Direct FuelCell product since it was awarded a project contract from the US Department of Energy in 2000. The system is based on FuelCell Energy's 250 kW Direct FuelCell power plant and an integrated 60 kW microturbine from Capstone Turbine Corporation.

Heat generated by the fuel cell is used to drive a modified unfired microturbine to generate additional electricity. The supplemental microturbine power increases the electrical efficiency and reduces the cost of power generated without using additional fuel.

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