Wind generated power is the way to go, but vertical propeller type blades are not physically OR cost effective. Takes too much wind to get them started and the tips of the blades can reach supersonic speed, which they are not engineered for the extreme stresses they are put under. They have a very high maintanance and poor time before replacement ratio. They usually don't operate in less than 10 - 15 miles per hour, plus, they must chase the wind when it changes direction and frequently miss the most effective gusts.
The best windmill is a verticle cylinder shaped turbine, that will initiate turning and generating power in less than 3 miles per hour AND will turn no matter which direction the wind is moving thereby eliminating the need to "chase" the wind.
Besides, because of those "tree huggers" out there, the propeller driven windmill is known for killing little birdies and have been known to be shut down on the left coast for fowl genocide where the turbine style wind generators do not endanger such fowl creatures.
BTW lofty, even if it's a "bad" picture, your wife is lovely.
Purp