|
Not to hijack the thread, but I would just like to point out. Before you spend your eco-dollars on this kind of thing you should first consider caulking, insulation, CFL lamps, water heater blankets, insulating your pipes and so on.
These mods pay for themselves quickly and frequently improve the comfort of your dwelling. At $4W for a solar panel you get about 1.6kWH per year with a retail value of 25c or so. So in 16 yrs it pays for itself. In fact with all the various rebates and so forth your cost will be lower so the payback improves, but it still isn't super.
|