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Power from the waves

(4 Posts)
Elegran Tue 21-Aug-18 11:47:23

Orkney tidal turbine generating 'phenomenal result'
"A flagship tidal energy turbine has generated more electricity in its first year than Scotland's entire wave and tidal sector produced before it.
The Scotrenewables SR2000, with its 2MW turbine, was installed in the sea off Orkney in 2017. It can typically generate 7% of Orkney's electricity but at points has been able to power more than a quarter of the area's homes.
It is estimated the seas around the UK could one day be capable of generating 20% of electricity needs"

Grannyknot Tue 21-Aug-18 11:51:22

Fantastic. I love the ocean.

paddyann Tue 21-Aug-18 15:50:32

Scotland is already power self sufficient.We generated enough wind and water power to power the whole of Scotland AND sell some too .adly WM pulled the plug on a lot of our renewable projects in favour of nuclear power .That will change when we gain our independence and control of our own waters again .

M0nica Wed 22-Aug-18 12:04:58

As I understand tidal turbines currently are expensive to maintain and keep operating. There are not that many houses on Orkney, so producing 7% of their power is not much. The problem is scaling these prototype systems up for large scale use. It will also be necessary to have large exclusion zones for ships and other watercraft around them, which may cause problems.

Now, the Welsh had plans for huge tidal lagoons along the their southern coast where the tidal rise and fall is large. These could have generated huge quantities of electricity for hundreds of years, unfortunately it required some government money and they decided against it.

The technology for these tidal systems, using the rise and fall of the tide passing through static turbines has a long history and proven technology. The tidal barrage system across the Rance estuary in France was opened in 1964 by General de Gaulle. It is still in operation over 50 years later and likely to continue operating for the foreseeable future

I have visited it and it is most impressive.