Google is investing $1billion in renewable energy, like solar energy and wind farms. It wants to become totally green. Google's Director of Energy and Sustainability (DES) said: "We've invested over a billion dollars in 15 projects that have the capacity to produce two giga-watts of power." He added: "Investing in…renewable power plants…all make business sense… .We rely on power for our business."

Google still has a long way to go before it reaches its goal to be fuelled by renewable energy 100 per cent. Currently, about 34 per cent is from renewables. The DES said: "There are lots of challenges in getting there, not the least of which is operating in many [legal systems in] different parts of the world." The DES added Google's innovative projects may transform energy and provide clean power to businesses and homes around the world.