TL;DR On 12 March 2026, Ofgem officially granted Tesla a full retail electricity supply licence. Tesla Electric is coming to the UK. Anyone can sign up – you do not need a Tesla car or a Powerwall. But the more Tesla hardware you have, the more the system works in your favour. Powerwall owners can realistically reduce their annual electricity bill by £700 or more, and earn additional income through a Virtual Power Plant – before Tesla Electric has even launched, using tariffs available today.
