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Renewable Devices Marine Power has recently been founded as a sister company to RD, combining our group’s extensive experience in the fields of renewable energy consultancy, turbine design and remote power design in the development of a device that can harness the power of the sea.


Tidal streams are caused by the motion of the world’s seas and oceans around headlands and islands. Power can be extracted from these using tidal turbines or tidal fences mounted on the sea bed. This is a promising new renewable technology which is at an early stage of development and can offer some advantages over other renewable technologies due to the predictability and reliability of the tidal streams and the ability to hold a much lower visual impact on the surrounding environment.

RD Marine is currently developing the OtterTM range of turbines – by using our expertise in generating power from fluid flow we are prototyping scaled systems in rivers to eliminate all technical risks before launching the off-shore tidal system.
The 10kW River OtterTM will provide electricity generation in medium sized hydro flows using the same technology as the larger 1MW Sea OtterTM turbine which will operate in deep sea marine tidal stream flows.
We are currently raising investment to take the OtterTM beyond prototype phase. If you are interested in helping out or becoming a partner please contact us.
