SIR - A topical update on the issue of hydro-electric power.
In a very timely announcement, it was revealed last week that 68 sites on Yorkshire and Lancashire rivers, including the Calder, Wharfe and Aire, have been identified as having potential for hydro-power generation from their natural flow.
These sites alone are estimated to have the capacity to power 18,000 homes, using a modern version of the Archimedes screw principle.
So, no "Niagara Falls" volume needed after all, and no allegedly "underpowered mill-race" issues either.
I think that's a green' game, set and match to me.
Graham Hoyle, Kirkbourne Grove, Baildon
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