Understanding Your Energy Performance Score

The Energy Performance Score (EPS) is a miles-per-gallon type rating for homes. It represents a home’s energy use and carbon emissions. It compares energy use of your house as it is now versus what it could be like after energy upgrades.

How numbers are created

The score and related numbers are based on the assessment of your home’s energy efficient features. Factors include attic, floor and wall insulation, leakiness (total size of holes and gaps), windows, lighting, heating system and the water heater. More information about each calculation is listed below or next to each number and on the back side of the certificate.

What each of the numbers mean

1. Estimated energy costs

The home factors are combined with known, standardized energy use figures to calculate monthly and annual use of electricity and natural gas.

Your actual energy use might be different than what’s shown. Anything that you do differently than what is deemed average for your size home will make the difference larger. The two biggest factors are the number of occupants in the home (i.e. 2 people living in a 5 bedroom home would have a lower actual use than their home’s EPS), and thermostat settings (i.e. setting the thermostat to 74 degrees in the winter will cause your actual energy use to be much higher than your home’s EPS).

2. The score

A lower number is better! The “score” is a number ranging from 0 to 200+, with 0 being the best (most efficient) and 200 being the worst. Say your score is 55. That means that you’re doing much better than the least efficient homes, but there’s still room for improvement. There are likely to be some home upgrades can help you use even less energy.

3. Energy scale

The energy scale shows where you home is relative to the best and worst homes. It helps you visualize how much room for improvement exists.

4. Carbon footprint

Some homeowners are concerned about climate change and want to reduce emissions generated by the home. The footprint is calculated from the estimated annual energy usage for your home.

5. Why these numbers are useful

Homes that are energy efficient cost less to operate, making these homes more affordable over the long term. Energy-efficient homes also are more livable, more comfortable and healthier. Knowing your score can help you make decisions about energy saving improvements.

A score is also helpful when selling or buying a home. It provides a standardized measure that accounts for differences in lifestyle and comfort preferences.

We want you to have a more comfortable, safe, and energy efficient home. Enhabit can match you with a contractor, answer your questions and connect you with financing options to make your home more efficient, comfortable and safe.

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