1. Fuel cells are available in Japan １１７８０１５１ Kanae Kuno

2. 1806 Lord Devi discovers the principle of the fuel cell (UK). 1965 A Spaceship is loaded with a fuel cell and goes to the space(USA). 2002 Limited sale of the fuel cell-powered car (Japan). 2005 Started a proof experiment of household fuel cell (Japan). History

3. AF-M3000 makerAquafairy typepolymer electrolyte fuel cell (PEFC) price 26,250 yen size H 67.6 × W 118.6 × D 21.0 mm weight 129 g

4. merit  It is small and light.  Generation is possible anytime.  This charges a cell phone, a smartphone, a portable game player ect. demerit  It is necessary to buy dedicated fuel cartridges.  Be careful about burns, because temperature occurs.

5. Industrial Fuel Cell makerFuji Electric Corporation typephosphoric acid fuel cell (PAFC) price 80,000,000 yen ~ generating efficiencygeneration 42 % heat recycle 20 % (high), 49 % (moderate) total 62 % (high), 91 % (moderate)

6. merit  The fuel uses natural gas, a biogas, pure hydrogen and excessive gas.  Output adjustment driving is possible.  It maintains high generation efficiency even if I lower the output. demerit  It needs to put space.  Cost is high.

7. ENE FARM makerJX Nippon Oil & Energy Corporation typesolid oxide fuel cell (SOFC) price 2,700,000 yen generating efficiencygeneration 45 % heat recycle 42 % total 87 %

8. merit  It uses a temperature to supply for hot water.  It doesn’t corrode to use ceramics to an electrolyte.  The price is very low.  The noise is very quiet in less than 40dB. demerit  It cannot generate electricity when blackout.  It doesn’t put near the sea.