A prototype system of dams and turbines in Swansea Bay could provide Britain with a major zero-carbon source of power
Backers of an ambitious proposal to transform the UK’s power supply will learn in the next few weeks if they are to be given the go-ahead to build tidal lagoons to generate electricity. The green light could see a series of major lagoon projects costing more than £15bn being constructed around the coast of Britain.
A tidal lagoon generates electricity from the natural rise and fall of the tides. Rising water flows into dams many miles in length, driving turbines. It is then held back behind walls as the tide recedes before being released to drive the turbines again, generating thousands of megawatts of power.