Solar PV and Tesla Powerwall 2 90% self-powered May 2019 July 1, 2019 Geraldine Solar Energy Solar PV and Tesla Powerwall 2 90% self-powered May 2019 Tesla Powerwall 2 and Solar PV installation performance for May 2019 at 90% self-powered for the month. A monthly review of performance of our 4 kWh system based in the UK.
