David Steeb, of the 120-turbine, 5,237-acre Desert Claim wind power project proposed in Kittitas County, Washington, said at a public hearing Tuesday that noise would indeed be a problem 22% of the time (avge. 5-1/4 hours a day).
One wonders where he got that figure, which is suspiciously similar to the expected actual output of the facility.
He said that when the wind blows enough to make the turbine blades turn it also makes other noise to mask the machine's. Wind promoters claim, however, in answer to the charge that a site isn't really that windy to rely on it as a source of electricity, that up at the top of the tower it's a lot windier. So a lot of the time when the turbines are doing their thing, the wind isn't whipping things up around your house. Result (as if rustling leaves (or bare twigs in the winter) could mask the whumping of 120 turbines): turbine noise.
Steeb also pleaded that his massive power plant was essential to preserving the county's rural character. The planning commission unanimously rejected the proposal. Congratulations, citizens of Kittitas County!