Quote:
Originally Posted by Neil
Isnt the biggest hydroelectric we have the one in Wales that is not really a power station as such but more of a big water battery?
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I had a tour around the hydroelectric power station at llanberis a couple of years ago. It is consists of two big lakes, one at the top of a mountain and one at the bottom. The turbines are hdden in the mountain and water rushes through during the day to produce electricty. At night, when electricity is cheaper the water is pumped back up again. There are no pylons to be seen anywhere and apart from a Visitors centre you wouldn't know about it. The tour takes you right around the underground installations in coaches, full size ones, that's how big the workings are.
The pictures below were scanned from the brochure they give you with your entrance ticket.
You get chance to get right alongside the machinery and we all had to wear hard hats.
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