I’ve always thought windmills were pretty cool. I think I just like the idea of free power. When I drove out to Los Angeles, I wanted to try and drive through one of the biggest wind farms in the country that is near there, but didn’t make it. On a windjammer cruise there was a windmill up on top of a hill of one of the islands we visited (great idea for an island since otherwise they would have to import fuel and they already have plenty of wind). When I went to Ireland, there were windmills all over the place and I took pictures and video of them. As part of the European Union, Ireland has a goal of producing 22% of its power from renewable sources which would include wind, solar, and hyro, but the biggest renewable source would be wind. They never made 22%, but they had an intermediate goal of 13.2% and in 2010, got to 11%. But since power demand and wind are not consistent, wind has sometimes supplied as much of 50% of their demand at one particular moment (probably of low demand and a nice wind).
Some of the biggest wind farms in the world are in the US. California started some massive wind farms in the 70’s that are still operating. The one near LA is called San Gorgonio Pass, with 3,218 windmills producing 615 megawatts of power. The Tehacapi Pass Wind Farm produces 705 megawatts. But the biggest concentration of windmills is the Altamont Pass with 4,930 windmills producing 576 MW. The older windmills are much smaller and produce less power each. They were trying a lot of things early on including egg beater windmills that spin no matter which way the wind is blowing, one-armed giants, and variable pitch blades that adjust to the strength of the wind and can withstand potentially damaging winds by slicing through the wind instead of catching it. The fast-spinning older windmills also made a lot of noise and kill a lot of birds.
