Daily Overviewさんのインスタグラム写真 - (Daily OverviewInstagram)「The Crescent Dunes Solar Energy Project near Tonopah, Nevada, uses 17,500 heliostat mirrors that collect and focus the sun’s thermal energy to heat molten salt flowing through a 540-foot (160 m) tall solar power tower. Seen here during its construction in 2015, the molten salt at its center then circulates from the tower to a storage tank, where it is used to produce steam and generate electricity. - In a recent report, the International Energy Agency (IEA) declared solar to be the cheapest means of generating electricity worldwide, saying the cost per megawatt to build a solar plant is now cheaper than any fossil fuel facility. - Created by @overview, source imagery: @maxartechnologies」10月26日 2時14分