By Fredrica Syren:
Grocery stores are a huge source of food waste, so when I heard about a supermarket chain in the U.K.that is planning to use food to generate energy power, it piqued my interest.
Sainsbury’s supermarket chain in the United Kingdom is working towards creating power from leftover foods and planning to disconnect itself from the national grid. To make this a reality, Sainsbury’s is partnering with U.K’s largest waste management company Biffa. The supermarket will transport its food waste from its stores nationwide to Biffa’s plant in Staffordshire, where it will be converted into biogas. The gas then will be burned to meet the energy needs of the Sainsbury Market located in the town of Cannock.
Biogas is created when bacteria breaks down wet organic matter like animal dung, human sewage or food waste. The gas is a mixture of methane and carbon dioxide, and also a semi-solid residue. It’s a sustainable way to create power that can be used as fuel for cooking, lighting or generating electricity. Biogas reduces dependency on fossil fuels, and the electricity produced from biogas generates much less carbon dioxide than conventional energy.
Sainsbury’s is becoming a landmark as the very first business ever to have a store (in Cannock) completely powered by its own food waste. Sainsbury’s, which already is committed to finding new ways to reuse and recycle, will send zero waste to landfills.