Residential Energy Use Map

Why Does This Map Exist

As part of our energy independence plan, we want to reduce total energy consumption by 25% throughout the community. To reduce energy consumption, you first have to know where energy consumption is highest. It’s easier and cheaper to reduce energy consumption in buildings that are inefficient.

The average age of homes in Bloomfield is over 80 years old. These homes were built at a time when not much thought was given to energy efficiency. Many older homes still do not have adequate insulation and air sealing. Consequently, they use more energy than newer built homes.

Your home’s energy consumption is affected by several factors. In addition the condition of your house; your appliances, your light bulbs, and how you live all impact how much energy your house uses.

One measure of energy is called the Energy Use Intensity (EUI). EUI measures the total energy used over a year and divides it by your home’s living area. Think of EUI like the miles per gallon (MPG) rating of your car, except applied to your home. In the case of EUI, a lower number is ideal. Many factors influence a home’s EUI rating, just as an MPG rating is impacted by driving habits, engine size, vehicle size, age, etc.

A standard we use to evaluate the cost of energy used by your house is Energy Cost Intensity (ECI). Energy Cost Intensity is the yearly cost of energy per square foot of a residence.  Different sources of energy have different costs. Your home’s energy cost (ECI) is affected by the type of energy used (electricity vs natural gas vs wood, etc.) and the total amount of energy consumed in your home. A lower ECI number is good.

How to Use the Map

Use the search bar to locate a specific address or just click around on the map to view the EUI and energy consumption details of many single-family homes in town. The current energy data covers the twelve-month period from March 2018 through February 2019.

Click here to see the map.