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 report highlights program and policy attributes that enable successful on-bill programs based on analysis of four program case studies.

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.