The movement for clean energy i s spreading across major companies. Top companies include Google and companies form the Silicon Valley. Also Wal-Mart, Facebook, and Amazon. Business deals were made in order to move towards renewable energy. According to National Geographic the land size is estimated to half the size if North Dakota. This push for renewable energy was inspired due to all the greenhouse emissions going on throughout the world.
http://news.nationalgeographic.com/energy/2016/03/160307-top-companies-buying-wind-and-solar-energy/
http://news.nationalgeographic.com/energy/2016/03/160307-top-companies-buying-wind-and-solar-energy/