Japan was among the countries with the highest proportion of nuclear armed world long time. Since the nuclear disaster by Fukushima however are the most power plants out of service. Since then, the isolated nearby island is dependent on the import of fossil fuels. This is however not only comparatively expensive, but is also accompanied by an enormous environmental impact. The country is trying to increase the share of renewables in the energy mix therefore for some time. This is a densely populated island like Japan but not so easy. So, some unused golf courses were already transformed into solar parks. Now, a reservoir of Yamakura dam in the vicinity of Tokyo with solar panels to be fitted.
The idea to cover areas of water with solar panels, is doing nothing new. A project was implemented in the United Kingdom, for example, already. In Japan, thinks it now but in considerably larger dimensions and want to contribute to, that solar energy is a significant part of the energy supply of the country. The first project on the Yamakura dam this includes approximately 51,000 solar panels and covers an area of 18 hectares. This is sufficient to produce 13.7 mega watt hours of electricity, which roughly corresponds to the consumption of 5000 homes. The savings for the climate are nothing to sneeze at: the solar power saves about 8.170 metric tons of air emissions.