This case study addresses multifamily energy upgrade experiences by two members of the Better Buildings Residential Network—Elevate Energy and the International Center for Appropriate and Sustainable Technology (ICAST).

This case study of Arizona Public Service (APS) and Arizona’s HPwES Sponsor, FSL Home Energy Solutions (FSL), focuses on their continuous improvements designed to elevate customer and contractor experience while boosting program cost-effectiveness.

This brief focuses on loan programs in 30 states that are currently providing low- to no-interest loans to finance energy efficiency improvements--from energy-efficient windows to replacement HVAC systems--in the residential, business, and public sectors.