Many program administrators have found that launching and scaling up a program often takes longer than planned for, especially when forming partnerships with contractors and lenders. New energy efficiency programs often need at least 2-3 years to launch and become fully operational. Across programs...

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...

Some lenders perceive home energy lending to be too risky or not profitable enough for them to get involved. Programs have found that engaging potential lending partners early in the program design process, especially in face-to-face meetings, helped them understand both lender needs and the risks...