Rapid growth of the anaerobic digestion sector has been highlighted by the adoption of the technology by a Suffolk brewery.
Adnams Brewery has introduced anaerobic digestors to its Southwold plant to turn waste from the site and surrounding companies into biogas for the national grid.
Climate change minister Greg Barker expressed his delight at the move as it follows the announcement that Thames Water and British Gas will turn sewage into biogas.
He said: "This has been an excellent week for progress in renewable energy. As well as the waste from making beer, Adnams Bio Energy is taking in food waste from local businesses large and small."
Adnams claimed that the waste by-products generated from brewing 600 pints of beer could generate enough gas for one home a day.
In addition to producing power for the local community, the gas will also be used to power the Southwold brewery and run its fleet of vehicles.