As noted, however, many investors haven't stuck around while FuelCell Energy tinkers with engineering.
If all this sounds interesting, remember that investing in a company like FuelCell Energy is no picnic.
FuelCell Energy's niche is stationary fuel cells, or those big enough to power offices, factories, homes or even neighborhoods.
For investors looking at long-term energy plays, don't rule out FuelCell Energy .
Brdar, who visits Washington at least once a quarter, says FuelCell Energy will push its Connecticut representatives to support the legislation.
For investors looking at long-term energy plays, don't rule out FuelCell Energy (nasdaq: FCEL - news - people ).
In 2004, 60% of FuelCell Energy's top line came from government sources.
And the commercialization prospects are what delight bulls on FuelCell Energy's stock.
On the positive side, our timing was good with bullish calls on green power play FuelCell Energy and satellite imagery provider GeoEye.
FuelCell Energy touts the ability of its fuel cells to directly process a hydrocarbon, such as natural gas or waste gas from a sewage treatment facility.
FuelCell Energy also installed a 1MW unit at California State University, Northridge, in 2007 in partnership with Southern California Gas Company and the Los Angeles Department of Water and Power.
FORBES: Never Mind Solyndra: Fuel Cell Industry Growing with Government Support
He cites FuelCell Energy's work for the Department of Energy on a technology known as the fuel cell hybrids, or power plants that cut emissions by combining fuel cells with conventional gas turbines.
Another interesting play is FuelCell Energy (nasdaq: FCEL - news - people ), whose main business is fuel cells for stationary power generation, such as in a factory or large building.
Canadian inventor Louis Michaud has created the Atmospheric Vortex Engine, which harnesses the energy of tornados to produce clean energy, and energy companies Dominion and FuelCell Energy Inc. announced plans to build the largest fuel cell power plant in North America.
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