Tidal power gets a boost from propeller and wind turbine techonology

Welsh renewables company teams up with ship propulsion experts to design robust new generation of marine turbine

Propellers on ships have been tried and tested for centuries in the rough and unforgiving environment of the sea: now this long-proven technology will be used in reverse to harness clean energy from the UK’s powerful tides.

The tides that surge around the UK’s coasts could provide up to a quarter of the nation’s electricity, without any carbon emissions. But life in the stormy seas is harsh and existing equipment