This article discusses an interesting strategy that several cities are embracing:
But last year, DeVries hit upon a brilliantly simple idea. What if, he asked, the city financed residents' solar rooftops, then levied a 20-year tax assessment on their properties to pay for it? The debt would follow the home, not the owner, and in one fell swoop, the two greatest impediments to home solar would be history.
His bosses ate it up, and Berkeley plans to roll out its new program this summer. City officials will float low-interest municipal bonds to cover the initial costs, and DeVries figures a solar setup factoring in rebates and tax deductions (which can be looked up at dsireusa.org) will cost a single-family household at least $65 a month. Once the system is paid for, the homeowner enjoys free electricity.
DeVries' phone has lately been ringing off the hook as dozens of municipalities look to follow Berkeley's lead.