But they can’t absorb solar power generated in summer, say, and deliver it in winter. It’s long-lived enough to be hold solar power generated in the summer for use in the winter. Hydropower is renewable energy’s oldest technology and accounts for well over 90% of energy storage, according to the US Department of Energy. In April, Advanced Rail Energy Storage won approval from the Nevada Bureau of Land Management for a $55 million project using rail locomotives. Air storageCompressed air storage sequesters a gas underground so it can be released later to drive a generation turbine whenever needed.

Source: Mint September 08, 2016 08:48 UTC