Tesla Powerwall

The Tesla Powerwall is a rechargeable lithium-ion battery stationary home energy storage product manufactured by Tesla Energy. The Powerwall stores electricity for solar self-consumption, time of use load shifting, and backup power. The Powerwall was introduced in 2015 with limited production. Mass production started in early 2017 at Tesla's Giga Nevada factory. As of May 2021, Tesla has installed 200,000 Powerwalls. Tesla Energy also offers the Megapack, a large battery energy storage device intended for electrical grid use. History As Tesla Motors (now Tesla, Inc.) developed batteries for its electric car business, the company also started experimenting with using batteries for energy storage. Starting in 2012, Tesla installed prototype battery packs (later developed into the Tesla Powerpack) at the locations of a few industrial customers. In November 2013, Tesla announced that it would build Giga Nevada, a factory to produce lithium-ion batteries.