Yoshito Hirai

Introduction Now, solar cell is used all over the world  Is it used in what kind of country?  How did it spread?  What kind of problem is there?

Solar cells in the World

The policy over photovoltaic power generation in Spain  Spain aimed at the big increase in renewable energy, and proclaimed the government ordinance in 2004 and  The contents of the government ordinance are buying the electricity generated by photovoltaic power generation.  Spain extracted Germanyin the installation capacity of photovoltaic power generation, and became the world's No.1.

The problem in photovoltaic power generation in Spain  Because the electric power acquisition policy went too far, the burden increased in finances.  It became impossible to increase new photovoltaic power generation.  Moreover, the damage caused by weeds etc. has occurred in the photovoltaic power plant using a fallow land.

Conclusion  Photovoltaic power generation is increasing slowly.  The rate of increase changes a lot by a policy.  Also technically and politically, photovoltaic power generation still needs to be improved.  We have to observe the policy of future Japan.