At the KidsDom Playground in Shimabara, Chiba Prefecture, Japan, the playground is surrounded by the Yamakura Reservoir, which is building the largest aquatic solar photovoltaic power generation system in Japan. The waterborne solar photovoltaic power generation system under construction is 180,000 square meters. About the size of 25 standard football fields, it can generate more than 16 million kWh of electricity and supply about 5,000 households, which is the total electricity consumption of a public housing estate in Hong Kong for one year. With these clean energy sources, it can be reduced by one. With a thousand tons of carbon emissions, and the construction of solar panels on the water, in addition to not occupying the land, the cooling effect of the water can increase the power generation by 10%, and the solar panels cover the water surface, which can reduce the evaporation of water. Water resources are not easy to lose.