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What can be done to increase the use of solar cells in Japan ?

What can be done to increase the use of solar cells in Japan ?. 2011 October 18 Hikaru Anma. advantage of solar cell. Solar cell. electric energy. light energy. ・ greenhouse gas is not generated. ・ The surplus electricity can sell. ・ The electricity can be used at the time

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What can be done to increase the use of solar cells in Japan ?

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  1. What can be done to increase the use of solar cells in Japan ? 2011 October 18 Hikaru Anma

  2. advantage of solar cell Solar cell electric energy light energy ・ greenhouse gas is not generated ・ The surplus electricity can sell. ・The electricity can be used at the time of a disaster.

  3. The number of introduction But 1.1% The diffusion rate of the solar cell in Japan up The number of the introduction households (2008) 520,000 houses The increase in the number of introduction

  4. introduction cost ①An introductory cost is high The production of electricity for one month (3kW system) about 270 kWh 1kW system \600,000 ~\800,000 yen 3kW system \1800,000 ~\2400,000 yen Subsidy(2011) \ 48,000 yen/kW Power consumption of household per one month about 280 kWh The sum total of cost \1650,000~\2250,000 yen

  5. cost of solar cell \ 2000,000 ②To take time to get its money’s worth The rate of solar power The rate of solar power 0.2 % 2.0% Sales value of electric power Sales value of electric power \ 42 yen / kW \ 65 yen / kW take time to get my money's worth take time to get my money's worth 15 years 9 years

  6. Hokuriku regions 2908 kWh Silicon solar cell Shikoku regions 500 kWh 3450 kWh ③generating efficiency The best generating efficiency 18.6％ The rise of power generation efficiency becomes important.

  7. Subsidy Sales value of electric power Conclusion Present Development of a solar cell with high conversion efficiency large electric power can be obtained in a small area. reduction of cost Solar cells will spread in Japan

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