Pennsylvanians have embraced green energy in a big way, and thanks to deregulation, they've been able to shop for the best deals to cut their bills along with their carbon emissions.

In some areas of the state, the most affordable electricity on the market is a 100 percent wind product. A Pittsburgh-based non-profit teamed up with energy companies last year to offer a 100 percent renewable wind electricity plan to residential customers in specific areas, including most of Allegheny and Beaver counties.

"Our mission is the promotion of renewable energy, and we believe that this is the most effective way to do so," said Titus North, executive director of the non-profit, Citizen Power. "People want to do something positive, but in this economy not many people can afford to purchase a hybrid car or put solar panels on their roof. However, this is something that helps the environment and saves consumers money at the same time."

According to Titus, Citizen Power saw a need for low-priced wind alternatives, for consumers who were looking for ways to become more energy efficient.

Despite what North said about the affordability of solar systems, distributed solar photovoltaic systems were the fastest  growing renewable energy technology worldwide between 2006 and 2010, according to CleanTechnica. Solar energy is expected to increase rapidly in Pennsylvania in addition to wind power in the coming years.