This report, informed by leading research and real-world examples, highlights practical online and in-person tactics that contractors can use to promote social interaction and social comparison among homeowners to make energy upgrades a "must-have" in U.S. homes.

The multifamily sector can be hard to reach when it comes to energy efficiency programs. Besides being diverse and complex, the sector presents a unique set of challenges to efficiency investments. The result is that multifamily customers are often underserved by energy efficiency programs. Drawing on data requests and interviews with program administrators, this report summarizes the challenges to program participation and identifies best practices that programs can use to reach and retain large numbers of multifamily participants.

This report presents the results of ACEEE's third national review or utility-funded energy efficiency programs, completed in 2013. The report identifies and profiles 63 leading programs that span the wide array of program types offered to utility customers, and highlights key trends and observations that emerged from reviewing these programs.

This report explores the approaches and research needs identified in the Building Retrofit Industry and Market (BRIM) Initiative through in-depth discussion with residential energy upgrade experts including a discussion of Marketing & Outreach and the program/contractor interface.

This report describes ACEEE's Deep South Ethnographic Project, which aimed to answer an overarching question: are end-users of energy in the Southeastern states interested in energy efficiency? This report includes the demographics of ACEEE's informants and responses to a set of questions about energy usage, bills, and money. The report also includes individual case studies from five different sites.

The lack of documented value of retrofit measures is a barrier to many homeowners doing upgrades - as most appraisals do not include energy improvements in their comparables, and the home’s future sale can prevent the homeowner from earning a return on their investment via lower energy costs. Once the industry develops a process for valuing the energy improvements, it can unlock the significant potential for retrofit work through market pricing signals (energy efficient homes are worth more) and enhanced access to capital for those purchasing a more efficient home (energy efficient homes improve borrowers’ cashflow because they cost less to operate).