A SHIP WITH A FUEL CELL POWER PLANT

A ship comprising accommodation facilities having a first power demand, a propulsion system having a second power demand, and a power plant comprising: • a first high-temperature fuel cell unit having a first rated power corresponding to the first power demand, • a second high-temperature fuel cell unit having a second rated power corresponding to the second power demand, • a primary heating/cooling circuit comprising a non-reacting heating/cooling fluid and a flow control means controlling flow thereof, • a controller adapted to control reactant supply to the first fuel cell unit, reactant supply to the second fuel cell unit and to control the flow control means, wherein the controller is adapted to operate the power plant in a first operating mode in which the first fuel cell unit is operated at the first rated power, no reactants are supplied to the second fuel cell unit and the primary heating/cooling circuit transfers heat from the first fuel cell unit to the second fuel cell unit.