Going green has been a term that has been floating around for some time the past few years. As fears of global warming and overall global awareness have increased rapidly, the ideas soon follow. It's an interesting and empowering idea, reduce your global footprint and preserve the earth.
The best part is that in some cases, you can save money even with little to no investment. If you are looking to install something like solar panels on your house, there is a federal program for both a business or a person that provides an investment tax credit of 30%.
Depending on the state there are state funded programs that are similar and even programs. The state programs are similar to the electric car incentives in that they are slowly disappearing, which makes now a good time to make a decision. Energystar.gov has more information on the specifics. As mentioned that is only one path, there have been companies that claim to decrease your electric bills. This is achieved through leasing. A low monthly fee to lease the solar panels and a reduction on your total monthly bill - at least that is the idea.
There are many knowledgeable professionals in the New England and surrounding areas, who may be able to assist you further. For example SolarCity provides exactly what was described above. Keep in mind the results will vary depending on where you live and even the seasons. A free consultation never hurt anyone though, you could spend less and go green in the process.