Windmill Economics 101...

The concept of net energy must be applied to renewable sources of energy, such as windmills and photovoltaics. A two-megawatt windmill contains 260 tonnes of steel requiring 170 tonnes of coking coal and 300 tonnes of iron ore, all mined, transported and produced by hydrocarbons. The question is: how long must a windmill generate energy before it creates more energy than it took to build it? At a good wind site, the energy payback day could be in three years or less; in a poor location, energy payback may be never. That is, a windmill could spin until it falls apart and never generate as much energy as was invested in building it.

Clearly, the concept of net energy is crucial if we want to find a policy that will see us through the Energy Sustainability Dilemma.”

One minor problem, people generally don't live in places where the fricking wind blows at 50 mph all the time.....

I mean, I occasionally drive past all those hideous windmills in North Texas, mile after mile after mile of the stinking things and God help any bird that ever has to fly through all of that,

Reason I prefer solar:
According to the current literature somewhere between 140,000 and 328,000 birds die each year from collisions with wind turbines. That's not all, explains the blog Natural Reactions: In addition, it appears that there is a greater risk of fatal collisions with taller turbines.