It's a new form of power that could become a valuable source of renewable energy. Thames Water is investing £250m in a plant that will process human waste.
There's no shortage of supply and, if it works, the plant in Oxford will generate enough electricty to supply 37,000 homes. Kate Bunkall takes up the story.
More top news
The Airports Commission is to publish its report and recommendations on whether an extra runway should be built at Gatwick or Heathrow.
Wednesday morning's weather for the east of the region
Wednesday morning's weather for the west of the region