Tag Archives: solar

RoofRay solar calculator.

Even with all of the great tools out there, it’s surprisingly difficult to just figure out if it’s worth the money to install solar panels on your home. Between calculations of latitude, historical cloud cover rates, degree days, and PV effectiveness, it’s just plain confusing. Which is why I’m so pleased to see RoofRay, a site that will do the math for you. Enter your address, answer a series of questions, and you’ll get all the details, including an ROI analysis. Beware, Virginians: the site will claim that the state offers a significant tax rebate when, sadly, no such thing exists. (Via MeFi)