A former Minister has urged the Government to get behind the Severn Barrage project.
It would cost a staggering twenty five billion pounds - of private sector money - and according to former Welsh Secretary Peter Hain, would generate five per cent of the country's entire electricity from tidal power.
However it's strongly opposed by conservation groups - who say it would damage internationally-protected mudflats - and by the port of Bristol. Today MPs heard both sides of the argument, as our political correspondent Bob Constantine reports.
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The fourth batch of Bristol Shauns are rolled out at The Grand Appeal auction.
The third batch of Bristol Shauns are rolled out at The Grand Appeal auction.
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