SOFC in dispersed power generation

Fuel cells are seen as a significant innovation for energy generation of the future since they are both environmentally friendly and can convert natural gas to electric current with comparatively high degrees of efficiency. Its introduction is especially suited for the decentralized provision of electricity and heat. The SOFC-technology is still at the beginning of its development, although a 100 kW-plant was already demonstrated using Westinghouse's tubular concept. The alternate to this, the planar SOFC is still in the development stages of units between 10 and 20 kW. Siemens wants to put a 50 kW-test plant for the planar system into operation next year. The introduction of high-temperature fuel cells will follow conventional combined heat and power plants (CHP) in competition. To be successful, competitive life-cycle costs are required. Hence, considerable efforts will be needed from the supplier in the coming year given the present position. (C) 1999 Published by Elsevier Science Limited. All rights reserved.