LONDON — Harvesting energy from the tides is hard to do, and the development of a new generation of sea-based power arrays lags far behind more widely used renewable technologies like wind and solar.
But the company pushing a new project on the coast of Wales thinks its twist — a 21st-century update of traditional dam-based hydropower — will be much easier to bring to fruition. If it wins government permission to go forward, Tidal Lagoon Power Limited says the approach, known as tidal lagoon generation, could provide as much as 10 percent of Britain’s power from six of its projects within a decade.
That is an optimistic assessment. Still, those hoping the seas will become a big contributor to the world’s future energy needs will be watching to see what happens in Swansea Bay, Wales.