How much is it worth to a home buyer to invest in energy efficiency improvements? A minimum estimate is that the annual savings on the energy bill pay for the annual cost of the investment when financed. This removes the primary reason for home buyers not to invest in energy efficiency -- lack of money. When faced with a choice of continuing to pay for wasted energy or making improvements that will make the house more comfortable and more valuable, buyers will opt for the improvements.
It is essential that the appraisal of the value of energy savings are based on the existing features of the house modified by the improvements to be made. Otherwise, the energy savings will be too high since additional improvements can only reduce the savings of related improvements.
By obtaining a dollar appraisal that shows the group of improvements that save more than they cost, the house is easier to sell than with an appraisal that lists which efficiency features the house has, or lacks. The latter shows the problem, the former gives the solution. (See my first Home Energy Pros article for more details).