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There's been one in Brittany since the mid-sixties: http://en.wikipedia.org/wiki/Rance_Tidal_Power_Station http://en.wikipedia.org/wiki/Rance_Tidal_Power_Statio
by achamayou 12y ago
There's been one in Brittany since the mid-sixties: http://en.wikipedia.org/wiki/Rance_Tidal_Power_Station http://en.wikipedia.org/wiki/Rance_Tidal_Power_Station
It works alright, but unless you have a very luckily shaped coastline, it doesn't scale all that well. It's also subject to silting in the long run, which isn't great for the yield, or the local eco-system.
- arethuza 12y agoThat's a barrage - like the scheme discussed in the original article. The NI and Pendland Firth schemes don't rely on a barrage but on the very strong tidal streams naturally found in those areas.
- achamayou 12y agoYes I know, I was responding to the OP mostly, since you'd already provided a reference to underwater turbine schemes.
- monk_e_boy 12y agoRe silting. If you split the pool into two or three, when one was empty (at low tide) you could use the water from a full one to flush the silt out. There is a system similar to this where I live, they use a tidal pool to flush the harbor.