There is also a Tesla/SolarCity solar+battery plant in Hawaii that opened earlier this year and is currently operational. It is 13 GWh and 52 GW, thus it provid

There is also a Tesla/SolarCity solar+battery plant in Hawaii that opened earlier this year and is currently operational. It is 13 GWh and 52 GW, thus it provides 13 GW of stored solar energy for 4 hours after the sun goes away. http://thegardenisland.com/business/energy/kiuc-opens-new-megawatt-hour-solar-farm/article_29e735ee-6cbc-5f64-b8d0-d34778144fb8.html?mode=jqm http://thegardenisland.com/business/energy/kiuc-opens-new-me...