Analyses the principles and main characteristics of fuelcell. Considers that phosphoricacidfuelcell(PAFC)is the ripest in technique and most commercialized civil fuel cell.
In 2007, Whole Foods market installed a 200-kilowatt phosphoricacidcell in a supermarket in Connecticut, where subsidies fund 25 to 40 percent of the cost of a fuel-cell system.