http://www.wired.com/wired/archive/13.05/solar.html
"Still, going hygrid remains a comparatively pricey proposition. Bell spent more than $15,000 on his solar modules, almost the same amount for the rest of the system, including the wind turbine, plus $5,000 for two inverters. But several states have stepped in to subsidize homeowners who want to deploy renewable energy. For instance, Illinois cut the Bells a $12,800 check. The Candeys bought $12,000 worth of solar panels but paid only $8,500 after a rebate from the state of Virginia, where the panels were manufactured. And the state of Maryland gave them a $3,600 grant, plus a 15 percent tax refund. All this brought the actual cost down to $3,625. At that price, their hygrid system will pay for itself in reduced utility bills in six years. "
