Living off the national power grid is difficult for individuals, and nearly impossible for commercial stores—but that’s exactly what Sainsbury’s in the UK is looking to do. Sainsbury’s is working with local recycling company Biffa to run their Cannock store completely of anaerobic digestion, or electricity generated from organic food waste. Sainsbury’s is already the UK’s biggest consumer of anaerobic digestion, drawing enough power from the alternative energy source to take 2,500 homes off the power grid per year. The Sainsbury initiative is about just one store. But the example shows what business can do to protect the environment.