Im a flip flop kinda guy, And in all seriousness, I have checked into ways to save costs, Its the initial costs thats a shocker. Just the solar water heater system alone will cost upwards of 3500. Im more intrigued by the wind mill, there was a guy in the old neighborhood that built one, a small one, it was an experiment of sorts, he ran his frig and standup freezer in the garage with it. It worked when we had a breeze, but those end of July and august days where we were stagnant, he had to switch back conventional.