Programs that offered several paths for customers to upgrade their homes—for example through a choice of single or bundled measures, staged upgrades over time, or a comprehensive whole home upgrade—were found to motivate greater homeowner participation and generate higher energy savings, according...

Homeowners do not benefit from access to financing if they don’t know about or understand options available to them. Contractors are often the primary transaction point for selling upgrades, and many programs have found that ongoing collaboration with contractors through sales training, regular...

Programs that conducted one-on-one outreach found that community events provided good opportunities for the program and its partners to connect and build credibility with potential customers. Particularly successful events were ones that attracted the program’s target audience and aligned with their...