Links to Regional Solar Resources:

Installing solar panels on your roof is an investment in the future. There are many options out there, regardless of how big your budget is. The following links are companies local to the DC Metro region:
Chesapeake Wind and Solar
This company will install an entire solar system for you for a fee, but doesn’t require afterwards that you pay for the electricity produced. From then on, you only pay the difference between the energy you use and the energy produced, drastically lowering bills.
Standard Solar
Program is very similar to Chesapeake Wind and Solar.
Beyond Petroleum
http://www.bp.com/genericsection.do?categoryId=3050485&contentId=3050766
BP has some of the largest solar capabilities in the country and even the largest solar plant in the U.S. in Frederick, Md! For local homeowners they offer several do-it-yourself options for solar power. See the web site for more information.
Dsire USA
This web site has an extensive list of different government incentives to help promote solar installations. In many cases, local and federal institutions can help you fund the cost of a solar transition.
"Don't get me wrong: I love nuclear energy! It's just that I prefer fusion to fission. And it just so happens that there's an enormous fusion reactor safely banked a few million miles from us. It delivers more than we could ever use in just about 8 minutes. And it's wireless!"
--William McDonough