Offer your thoughts or opinion on the input financial query or topic using your financial background.

Are solar cell panels and wind mills worth the money?
Solar water heaters are definitely questionable in the Northeast -- the season when you most need them is also the season when they are least effective. Solar electric isn't a huge moneymaker, but with rebates on installation and carbon-reduction credits (SRECs) -- and a group purchase discount if you can get one, either at a town level or through organizations like One Block Off The Grid -- it can definitely turn a profit. Early estimate was that my setup would pay its initial costs back in 4 years, and the panels are generally considered to be good for a decade before the cells have degraded enough that the panels should be replaced. I haven't had a negative electric bill yet, but I've gotten close, and my setup is a relatively small one (eight panels facing SSE on a 45-degree roof). Admittedly I've also been working to reduce electricity use; I don't think I have an incandescent bulb left in the house.