The campus is one of the most energy-efficient buildings in the world,[2] and the main building,[45] Steve Jobs Theater,[46] and fitness center[47] are all LEED Platinum certified. In an April 2018 press release, Apple announced that it had switched to being powered entirely by renewable energy.[48] The solar panels installed on the roof of the campus can generate 17 megawatts of power, sufficient to power 75% during peak daytime,[49] and making it one of the biggest solar roofs of the world.