Biogases emitted from the fermented slurry would be used to produce up to two megawatts of electricity for the national grid.

The countryside provides raw materials

The plant's processes will also produce hot water for use in a community heating scheme, and organic manure which farmers can use on their land.

Director, Charles Clarke, said the plant was virtually complete, but they were waiting for an integrated pollution prevention control licence from the Environment Agency.

"As soon as we get the licence we will start collecting slurry and get the process going," said Mr Clarke, a retired farmer.

"We are looking to be in full production in early May."