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.

Descriptions of eight county-level and city-level energy efficiency programs in the Southwest.