Seite - 66 - in Our Car as Power Plant

66 An averaged sized car park with 500 cars with a fuel cell capacity each of 100 kW is a power plant of 50 MW. When we operate such a power plant with a load factor of 4,000 hours such a car-park power plant generates 200,000,000 kWh, which is 200 GWh. In 2010 a German household uses a little over 3,500 kWh per year, while a French household uses over 6,300 kWh and a household in the US uses nearly 12,000 kWh (32). Let us assume that a typical household consumes 4,000 kWh. Then a car park with 500 cars is able to generate all the electricity for 50,000 houses. Or in other words every fuel cell car with a 100 kW fuel cell can easily produce the electricity for 100 houses. OUR CAR AS POWER PLANT CAR-PARK POWER PLANT NUMBER OF CARS 500 cars FUEL CELL CAPACITY PER CAR 100 kW ELECTRICITY PRODUCTION CAPACITY CAR PARK 50 MW ELECTRICITY PRODUCED PER HOUR AT FULL CAPACITY 50,000 kWh HEAT PRODUCED PER HOUR AT FULL CAPACITY 25,000 kWhth DE-MINERALIZED WATER PRODUCED PER HOUR AT FULL CAPACITY 22,500 liter HYDROGEN CONSUMPTION PER HOUR AT FULL CAPACITY 83,333 kWh GAS NECESSARY TO PRODUCE HYDROGEN FOR ONE HOUR 3,300 m3