Tidal Energy

Scotrenewables

Scotrenewables: Floating tidal energy device with retractable turbines being launched in Kirkwall

This week Scotrenewables announced the successful operation of their SR2000 floating tidal energy device, operating at full 2MW capacity. The SR2000 weighs 500 tonnes, has a floating main body with two 1MW turbines that fold up while in transit and fold down while in use. Because they can be easily built and deployed without expensive specialist support vessels the overall costs should be kept down. This is the largest tidal stream energy device currently operating anywhere in the World. The initial site is in Lashy Sound between Eday and Sanday in the Orkneys where there are very strong tidal currents, but Scotrenewables claim the same technology can be easily adapted to areas with slower tidal currents or used in rivers, so opening up many diverse potential markets. Scotrenewables are based in Kirkwall and have worked closely with the European Marine Energy Centre (EMEC) in Stromness. I’ve blogged before about tidal energy and EMEC in 2010 and 2013.

MeyGen with their seabed mounted tidal stream turbines still seem to be progressing with their project in the Pentland Firth. The Hendry Review into tidal lagoon technology came out strongly in favour a few months back, and work on the Swansea Bay Tidal Lagoon project is due to start in 2018. Perhaps at long last the tide is turning in favour of tidal energy.

These three pioneering tidal energy companies offer great possibilities for helping meet UK energy needs and also represent a huge potential for exporting the technology globally. At least two of the three companies have been helped by EMEC, and EMEC continue to work with other pioneering and innovative wave and tidal start-up companies. It is tragic to think that if Brexit does indeed go ahead the UK may lose many global centres of excellence such as EMEC that have come to the UK only because our membership of the EU and depend on EU funding and collaboration.

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