AmiMoJo writes In his press conference, Elon Musk stated that the factory will produce all of its own energy using a combination of solar, wind, and geothermal. Engineering.com looks at the feasibility of the plans. Spoiler alert: it looks possible, though some storage will be required. Fortunately, if there is one thing the Gigafactory won't be short of it's batteries. From the article: "The numbers don’t lie. The site could realistically produce more than 2900 MWh of renewable electricity each day ... 20% more than it needs. These are conservative estimates on production and worst-case estimates on consumption, and it’s clear that there’s enough renewable energy to run the plant with some to spare."