Scoring Tool Default Values and Fixed Assumptions

For an asset rating to have meaning in the marketplace, one home must be comparable to another. For home characteristics NOT individually recorded and entered into the Scoring Tool, non-asset related inputs are standardized to a nationally consistent set.

Important differences from Home Energy Saver defaults include:

In keeping with the standardized nature of the assessment, predicted energy costs and savings assume state-average energy prices. The Scoring Tool applies a standardized retrofit cost from the NREL National Residential Efficiency Measures Database and limits recommendations to those achieving a payback time of 10 years or less. As a result, predicted energy use may be different from actual utility bills. The extent of these variations will depend on additional factors such as how the occupant maintains their home, appliance ownership and use, actual number of occupants, and year-to-year weather variations.