The City of Fort Collins, Colorado increased the number of homes that are energy efficient through the use of community-based social marketing. Strategies to maximize impact included identifying neighborhoods based on data analysis, simplifying the process for completing upgrades, and using trusted messengers for delivery of tailored messages on energy efficiency services.

When shopping for a new home, homebuyers look to real estate agents for advice on everything from the best school districts to the name of a good local plumber. Because new owners make many home improvements after purchase, real estate agents have the opportunity to continue as trusted messengers after the closing date. Nonprofit organization Build It Green (BIG) saw an opening: if real estate professionals understand the importance and benefits of energy efficiency, then they can advise clients on how to incorporate efficiency into their home improvements.

Focusing on Colorado Springs, Colorado, as a case study, the U.S. Department of Energy's Building America research team IBACOS suggests a win-win between a builder's investment in energy efficiency and that builder's ability to sell homes. Although this research did not ultimately determine why a correlation may exist, a builder's investment in voluntary energy-efficiency programs correlated with that builder's ability to survive the Great Recession of 2007 to 2009. This report explores the relationship between energy-efficiency ratings and the market performance of several builders in Colorado Springs.

This case study features a Massachusetts-based program that used an SUV-mounted thermal imaging camera to evaluate thermal leakage from homes.