Tesla started testing the Powewall, its home battery system, with “pilot customers” last summer. At the time, a Tesla spokesperson told Electrek that the 7 kWh version of the battery pack was in production and that over the next few weeks they would “continue to ramp up to volume production”, but a few weeks later, the company moved the production line of its Tesla Energy products to the Gigafactory in Nevada, which delayed the ramp up of production. expand full story