So far, so factual. The unique element about the claim in this particular letter, however, was that wind farms draw electricity from the grid to keep the blades turning, so that we won’t realise that they’re not generating electricity at the time. The fact that some turbines can be seen turning on “windless” days is evidence, claimed the author, that the operators of wind farms reverse the turbines and use them as motors to turn the blades. His final ‘proof’ of the claim was that a retired meter reader had told him so. So now we know!
It’s not a new claim. I’ve seen it made a number of times before, and the Internet makes it easy to repeat such claims - usually cross-referencing each other as evidence. I don’t know how and where the claim originated, although that doesn’t seem to be important those repeating it. It suits their argument, and the extent to which the claim is repeated makes it commonplace; that’s quite enough for them.
It’s not enough for me, though. I want more than anecdotal repetition – but there is none to be found. It should surprise me how many people are willing to believe that the companies really would keep the turbine blades turning on still days just to try and convince us that they are working when they aren’t, but somehow it doesn’t. It’s akin to conspiracy theories, and much of the basis for most of those is the lack of trust (sadly not without justification) of officialdom in general. It doesn’t help progress though.