The US EPA came out with a study this week showing the financial feasibility of transitioning to renewable energy sources for the average American family.  According to the analysis cited in Renewable Energy World, a small investment of between $79 to $146 annually per household can meet the clean energy development goals of the American Power Act (sponsored by Senators John Kerry and Joe Lieberman).  Furthermore, the energy efficiency improvements resulting from these changes should lead to lower energy bills over the next two decades.  Additional benefits include a reduction in our dependence on foreign oil, job creation for the clean energy economy, and reduced greenhouse gas emissions.