CCEF’s Residential Energy Upgrade loan program, known simply as “RENU,” features no money down and below-market interest rates, with financing available for upgrades such as solar panels, heat pumps, energy-efficient windows and doors, and air sealing and insulation.

Property owners of existing, single-family homes in Colorado including primary, secondary or income properties, as well as townhomes and condos that don’t have shared heating or cooling systems.