This case study features Better Buildings Residential Network members Elevate Energy and the International Center for Appropriate and Sustainable Technology (ICAST), nonprofit members that develop energy efficiency solutions for multifamily and affordable housing communities.

This case study addresses multifamily energy upgrade experiences by two members of the Better Buildings Residential Network—Elevate Energy and the International Center for Appropriate and Sustainable Technology (ICAST).

This case study discusses Energy Impact Illinois' marketing evolution from a broad outreach campaign to a Òhouse partyÓ approach that brought Chicago homeowners, neighbors, and friends together to learn about energy efficiency opportunities, while increasing demand for home energy assessments and upgrades.

Energy Impact Illinois (EI2) conducted 1,600 phone surveys of mid- to high-income households. Its aim was to test program messaging and gauge attitudes toward home improvements and energy efficiency upgrades. The surveys provided a number of insights on the target audience's decision process.