Lets talk about solar power. A 5 to 6 kw grid tie system will run you about 55,000 dollars. That's hardware only, not installation, which can add another 5 to 10 thousand dollars to the cost. That type of system can replace most electrical power you pull off the grid daily. When you're away from home during the day, that power is fed back to the grid, essentially running your meter backwards....you sell that power to the electric company. Sounds great...and assuming that system saves you 200 dollars a month, it will take you approx 25 years just to recoup the cost. Which also happens to be the design life of your system. See the problems yet?

Outside of the few boutique envirofrauds out there, like Algore, not many people have 60 to 65 thousand dollars lying around to spend on crap like that.