This report builds and expands off of previous research by collecting and evaluating data from 800 Illinois Home Performance (IHP) retrofits. This study investigates homeowner measure package choices in the Illinois Home Performance with ENERGY STAR® (IHP) program compared to cost-optimal choices determined through Building Energy Optimization (BEopt™) modeling software.

Presentation that provides an overview of the Energy Savers Program (Illinois), including services, benefits, and success stories.

This presentation describes the Illinois Home Performance program and marketing strategy lessons learned.

This presentation provides the results of a 1,600-person survey of mid- to high-income households conducted by Energy Impact Illinois (EI2) to gauge attitudes toward home improvements and energy efficiency upgrades.

An overview of tools and approaches used to transform the energy efficiency market in Chicago.