Energy efficiency savings have grown substantially in the past ten years, and national leaders in program administration have emerged as savings levels have increased. This report reviews annual program performance for 14 leading energy efficiency program administrators, with a focus on costs, electricity savings, cost effectiveness, and portfolio design.

This report identifies opportunities for Connecticut's Home Energy Solutions program (HES) to increase savings related to air sealing, duct sealing, and insulation.

This report is the process evaluation of the Connecticut Multifamily (MF) Initiative, which leveraged the state's Home Energy Solutions (HES) and Home Energy Solutions-Income Eligible (HES-IE) programs. The objective of this process evaluation is to provide actionable recommendations about how to improve the design, delivery, and administration of the MF Initiative.

This report includes evaluation analysis and findings from the Eversource New Hampshire Home Energy Report pilot program.

This summary from a Better Buildings Residential Network peer exchange call focused on approaches organizations can use to improve the efficiency and effectiveness of home upgrade programs, including strategies to streamline data entry and make continuous process improvements.

This report summarizes the impact analyses of National Grid's and Eversource Energy's Home Energy Report (HER) programs. The evaluation team conducted three distinct impact analyses related to these HER programs: Cohort-Specific Impact Analysis; Mapping Analysis; and Dual Treatment Analysis.

This technical reference manual provides detailed, comprehensive documentation of resource and non-resource savings corresponding to the Energy Efficiency Fund program and individual Conservation and Load Management (C&LM) program technologies.

The study involved on-site visits to 180 single-family homes across Connecticut. The team assessed compliance with the weatherization standard using both the prescriptive and performance paths and made recommendations to improve program quality.