Tesla CEO, Elon Musk, has long expressed his admiration for heat pump technology. In fact, he likes it so much that he incorporated it into the Tesla lineup, starting with the Model Y, then rolling it out to other models. Heat pumps are also an integral part of Musk’s “Master Plan 3,” which he recently unveiled at Tesla’s Investor Day at the company’s Gigafactory in Austin, Texas (video below).

This third part of the Master Plan essentially outlines Tesla’s mission to accelerate the worldwide transition to sustainable energy and eradicate the use of fossil fuels (Part 1 centered around electric vehicles, while Part 2 covered solar roofs and battery storage). According to Musk, “There is a clear path to a fully sustainable Earth with abundance. In fact, you could support a civilization much bigger than Earth sustainably. I'm just often shocked and surprised by how few people realize this.”