In June, a 1.18-MW PV system floating on a water reservoir became operational in Japan. The system called “Solar on the Water Okegawa” in Saitama prefecture is currently the biggest system of its kind in Japan. It was developed by Ciel el Terre (France), which has been developing large-scale PV systems mainly in France since 2006. Having recognized the issues of land shortage and of protecting natural and agricultural lands, the company noticed many inland water reservoirs, which are located near grid-connection, but under-utilized.