Without an incentive, homeowners and contractors may limit themselves to smaller upgrade projects. Programs in search of more energy savings have found that some homeowners already interested in an upgrade are amenable to a bigger upgrade when coupled with better financing terms or larger rebates...

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...

Measuring performance at key points in the upgrade process (e.g., assessments, conversion rates, and financing applications) has helped programs understand where their processes are working smoothly and where they are not. This information has helped them continuously improve their program design...

Complicated loan and program application processes have deterred many potential customers from following through with an upgrade. Delays and overly burdensome requirements raise barriers to participation. Many programs have successfully employed strategies to reduce the number of requirements that...