Plans for a huge dam across the Severn Estuary between Weston and Cardiff - which could generate up to 5 percent of Britain's electricity - are to be discussed at a public meeting this evening.

The barrage would harness tidal power to create the energy - and would be paid for entirely by private money ... at a cost of up to fifty billion pounds.

The developers and industry experts will provide more information at tonight's public Chamber of Commerce meeting  - at The Royal Hotel in Weston at seven o'clock.