Energy Revolution The Top 10 Energy Efficient Cities in the U.S. Explore America's biggest savers Share Read Later prev12 of 12nextView AllMore Lists Full List Energy Efficient CitiesBoston – 76.75Portland – 70New York City – 69.75San Francisco – 69.75Seattle – 65.25Austin – 62Washington, DC – 56Minneapolis – 55.25Chicago – 54.75Philadelphia – 54.5