Direct Fuel Cell DFC® Durability Progress

FuelCell Energy, Inc. (FCE) is a global leader in providing ultra-clean baseload distributed generation at more than 50 locations worldwide. These plants have generated more than one billion kilowatt hours of ultra-clean power using a variety of fuels including renewable biogas, coal-bed methane, propane, and natural gas. The generator design is based on the internal reforming direct carbonate fuel cell (DFC (R)) concept. The key to widespread fuel cell commercial acceptance is grid competitive cost of electricity (COE). The prime contributor to the fuel cell COE is first-time and most importantly, periodic replacement costs of the fuel cell stack. As such, the focus of technology development is on reducing fuel cell cost as well as extending service. This paper reports on the progress on understanding and extending the carbonate fuel cell durability.