Several successful residential energy efficiency programs offered multiple types of home energy assessments to appeal to a wider spectrum of homeowner interests and needs. These ranged from online home assessments to brief walk-throughs to full diagnostic testing. A comprehensive evaluation of over...

Low-cost financing for home energy upgrades does not increase customer demand for upgrades on its own. A comprehensive evaluation of over 140 programs across the United States found that homeowners must be sold on the benefits of home energy upgrades before financing can become valuable to them...