Tesla’s robotaxi and humanoid-robot promises remain unproven businesses. Its energy division isn’t. And therein lies the company’s next bright idea.

Tesla says the Powerwall 3 is "designed to accelerate the transition to sustainable energy." While both designs aim to provide a simple installation process and solar panel system compatibility, the Tesla Powerwall 3 design packs more of a punch.

Homeowners are increasingly deciding that it makes more sense to hold on to that excess power from home solar for themselves.

UK energy regulator grants Tesla license to supply electricity, as it moves beyond EVs and into the energy market.