Next time you flush the toilet, you could be doing your bit for green energy. After being stored for 18 days, human waste will from today be returning to homes in the form of renewable gas.

Centrica is opening a plant at Didcot sewage works which will be the first in the UK to produce renewable gas for households to use.

National Grid believes that at least 15% of all gas consumed could be made from sewage slurry, old sandwiches and other food thrown away by supermarkets, as well as organic waste created by businesses such as breweries.

Good idea although it is taking it a bit far thinking that I will have to pay somebody to give me back my own sh!t.