According to Kyocera, the electronics manufacturer behind the floating solar systems, the two new stations in Kato City are expected to generate 3,300 megawatt hours annually, providing enough electricity to power about 920 typical households. The company is also behind another floating solar farm just east of Tokyo, slated to open next March, that will be even larger, powering almost 5,000 households.
The “mega-plants” have a number of benefits compared to traditional land-based solar plants. As Wired previously reported, the floating plants generate power more efficiently because of the cooling effect of the water underneath the system. In addition, the shade generated by the stations helps reduce both water evaporation and algae growth, and the systems overall are also drought-friendly thanks to how much water they conserve.
Source: Huffington Post