Abstract: The invention is directed to a process for generating electricity from a fuel on the basis of one or more hydrocarbons, which comprisescatalytically converting said fuel into a CO and H.sub.2 containing gas,supplying the resulting gas to at least one shift reactor, in which at least part of the CO present is converted into H.sub.2 to form a H.sub.2 containing gas,supplying the H.sub.2 containing gas to the anode spaces of at least one fuel cell unit, the difference between the operating temperature of the fuel cell unit and the temperature of the gas supplied to the shift reactor being not more than 50.degree. C.,using a fuel cell unit having an operating temperature of at least 125.degree. C., andmaintaining the temperature of the fuel cell unit to form process steam, which process steam is also used to heat the feeds to the fuel cell.