This report provides a comprehensive review and analysis of home energy upgrade programs with proven track records, focusing on those with robustly verified savings and constituting good examples for replication. This meta-analysis describes program models and implementation strategies for direct install upgrades; heating, HVAC replacement and early retirement; and comprehensive, whole-home upgrades.

The document provides best practices and guidance for conducting the energy analysis required for multifamily (MF) building energy improvement projects funded by the various programs of the Maryland Department of Housing and Community Development. The intended audience includes energy auditors, building owners and operators, contractors, designers, architects, engineers, and energy efficiency consultants and program staff.