The world’s largest pumped hydro energy storage facility is nearing completion in China. The megaproject will bring China one step closer to its goal of being the world’s first and preeminent electrostate, and will advance the nascent but rapidly growing long-duration energy storage sector. The storage project being built at the Lianghekou Dam in Western Sichuan plateau will have four units of 300 megawatts (MW) each when completed, making it the largest facility of its kind. The project will house a conventional hydropower plant in…