http://www.sd-commission.org.uk/pages/tidal.htmlTidal Power
The UK’s outstanding tidal resources could provide at least 10% of the country’s electricity. The Sustainable Development Commission (SDC) has carried out a comprehensive study of tidal power in the UK, including an evaluation of proposals for a Severn barrage. Our report, ‘Tidal Power in the UK’, includes a series of recommendations to Government on how to develop our tidal resource, and emerging tidal technologies, to provide secure, low carbon electricity for the long term.
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Tidal Power in the UKA Severn Barrage
A barrage in the Severn Estuary could supply 4.4% of UK electricity supply (17TWh) from the second greatest tidal range resource in the world, generating electricity for over 120 years. Developing a Severn barrage would result in significant climate change and energy security benefits.
However, it would have a major impact on the local environment, with the loss of up to 75% of the existing intertidal habitat, which is internationally protected. There would also be a number of impacts on local communities and the regional economy, and a high risk that unsustainable ancillary development would take place alongside any barrage project. The SDC has therefore laid down a series of tough conditions which a Severn barrage would have to meet in order to be considered sustainable.
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