However now, with the fuel cells being so fuel efficient in small sizes, and their cost rapidly declining with volume manufacture, we seem to be coming to a tipping point where distributed fuel cell generation may be less expensive than conventional integrated generation, particularly when the cost of transmission and distribution is increasing so rapidly.

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Intelligent Energy is a global clean power systems company, with a range of leading fuel cell and hydrogen generation technologies.

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ReliOn, a fuel-cell manufacturer based in Spokane, WA and focused on emergency-generation applications, reported that one of its customers hit by Hurricane Irene had 56 cell towers with fuel cells installed for backup power.

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"Lots and lots of things are happening that indicate a worldwide interest, and most of the knowledgeable people are convinced that the next-generation replacement for the internal combustion engine is going to be a fuel cell, " Roan said.

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Bethesda, Maryland, is developing solid oxide fuel cell generators that will replace reliance on traditional battlefield power solutions and potentially reduce the fuel required for tactical generation of electric power by half or more.

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