How many people do you think are going to study "clean" energy enough to understand it?
We are not far enough advanced in what is called "clean" energy to make it pay for itself. For example: Jim and I had solar energy for heating and cooling in FL at Jim's house. Didn't work. It was pathetic. We were always working on it to try to make it work, so it was expensive. Wind energy is expensive...and doesn't work in some areas (there is no wind in many areas). And my goodness, have you ever seen the gigantic wind turbines that take up thousands of acres? West Texas is full of 'em...talk about pollution! They're also very noisy. And birds run into them and get killed. Geothermal energy has to be"mined" (for lack of a better word) just like other forms of energy, and it's also expensive and relegated to certain areas of the earth that have teutonic plates.
http://www.windustry.org/how-much-do-wind-turbines-cost
The costs for a commercial scale wind turbine in 2007 ranged from $1.2 million to $2.6 million, per MW of nameplate capacity installed.
Most of the commercial-scale turbines installed today are 2 MW in size and cost roughly $3.5 Million installed. Wind turbines have significant economies of scale. Smaller farm or residential scale turbines cost less overall, but are more expensive per kilowatt of energy producing capacity. Wind turbines under 100 kilowatts cost roughly $3,000 to $5,000 per kilowatt of capacity. That means a 10 kilowatt machine (the size needed to power an average home) might cost $35,000-$50,000.
http://www1.eere.energy.gov/geothermal/faqs.html
