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.

Quick summaries of strategies various programs have used to improve the efficiency of delivering efficiency.

STEP was developed with a mission to "create a model community energy transformation program that serves as a roadmap for other small towns across the U.S." This final technical report summarizes the program's comprehensive energy evaluations for homes.

This report presents key findings and recommendations from the process evaluation of Clean Energy Works Oregon's (now Enhabit's) energy efficiency financing program. Table 1 provides a good list of key process evaluation research questions which may help others scope comprehensive process evaluations.

This report summarizes a home segmentation study conducted by New York State Energy Research and Development Authority (NYSERDA). The study looked at 1,012 homeowners across New York to evaluate how they view home energy consumption, the importance they place on energy saving solutions, and why they would consider taking advantage of programs that increase energy efficiency.

This report describes the process evaluation of a pilot project in Portland Oregon that informed the refinement and expansion of the program statewide into Clean Energy Works Oregon (now Enhabit).