Economic Considerations
It is easy to measure energy efficiency. Using an energy rating tool, we can predict how much energy a home should use. With that information, we can examine a number of economic means to assess an improvement or a set of improvements.
However, before we do that, it is important to discuss things that are more difficult to measure. How do we put a price tag on comfort? What is the rate of return for greater durability? What is the simple payback for a safe home?
All of these things are part of a high-performing home. It is peace of mind that is difficult to quantify.
Energy Efficiency Economics 101
Factors
Money spent on improvements = Increase in monthly payments
Money saved by improving home = Decrease in utility bills
Some people ask about the payback on an efficiency-improvement measure. From our perspective, that's an odd question to ask. What is the payback on a fancy countertop or a jetted tub? We do know that, with the documentation of an energy rating, an appraiser may add value to the appraisal of your home.
Perhaps a better question to ask is about the rate of return on a given improvement or set of improvements. This allows you to compare the investment of improving the efficiency of your home with any other investment.
For example, consider a $250,000 home with a $2500 investment in energy efficiency which yields a modest $25 reduction in energy bills each month. Let's use a 30-year mortgage at 6%.
| Initial purchase price | $250,000 |
| High-performance cost | $2500 (a 1% increase in price) |
| Utility Savings | $25/month |
| Monthly payments with no improvements |
$1500 + $100 = $1600 |
| Monthly payments with improvements | $1515 + $75 = $1590 |
You have a positive cash flow of $10 from the first day.
We know of no other feature that you could select for your new home that could make a similar claim.








