Fuel Cell

The greatest advantage of STS over Fuel Cells is operational cost.

• Fuel Cell systems cost about $6/Watt.  
• Fuel cost will exceed capital cost every 5-6 years
• High maintenance / consumables costs
• Output declines rapidly with time
• Manufacture is energy intensive
• Toxic chemicals required during manufacture
• Clean-room product
• Fragile components, susceptible to fuel impurities. 
• Replacement components must be matched to existing components

In all fairness, Fuel Cells have some advantages too.

• Quiet / Silent
• Few moving parts
• Efficiency is about 90% in the cores, and about 92% at the inverter.
• On demand, emergency, and high reliability applications

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Updated: 09/11/10 19:31