Determine the Energy Performance Rating for Design Energy Use
Target Finder will provide an EPA energy performance rating for your design’s calculated or simulated estimated energy use. The Results screen will display the associated rating for your design to determine if you met the target goal and achieved Design to Earn the ENERNGY STAR certification. Complete the steps below to rate and compare your project’s estimated energy use to the target and median building.
Step 1 - Facility Information:
Enter the ZIP code where the facility will be built. Target Finder selects the appropriate climate data and calculates the energy use typical of the specified location. Target Finder can only be used for US cities, states and territories.
Step 2 - Facility Characteristics:
Select the applicable space type from the drop down menu. The screen will refresh and display the space type form. Provide requested attribute information for all selected space type(s) in the design project.
Step 3 - The Target:
Select the desired energy use target using either method:
Target Rating: the EPA energy performance rating; ranging from 50 to 100, or
Percent Energy Reduction: from the median building energy use for the equivalent of a rating of 50; ranging from 30% - 95%.
Step 4 - Estimated Design Energy
Select the Energy Source (electricity must be included as one of the sources);
Enter the Unit of measure; kWh, Btu, etc.
Enter the Estimated Total Annual Energy Use for each energy type from calculations or simulation models.
Enter Energy Rates for each energy type to customize your results. If Energy Rate is left blank, DOE-EIA State Average Fuel Rate will be used (if available) to calculate total annual energy cost.
Select View Results
The Results screen will display the following information for your Design, Target, and the Median Building.
Results for Estimated Energy Use
Energy Performance Rating (1-100)
Energy Reduction (%)
Source Energy Use Intensity (kBtu/Sq. Ft. /yr)
Site Energy Use Intensity (kBtu/Sq. Ft./yr)
Total Annual Source Energy (kBtu)
Total Annual Site Energy (kBtu)
Total Annual Energy Cost ($)
CO2-eq Emissions (metric tons/year)
CO2-eq Emissions Reduction (%)
How Target Finder Calculates Design Rating and Energy Use Targets
The ENERGY STAR rating is based on source energy, which means that a specific source EUI value (e.g. your design) corresponds to a specific rating. The source EUI for the median building and for your target is derived directly from the energy performance scale. To convert these source energy values into site energy values, Target Finder will assume that the fuel breakdown in your building (e.g. percent electricity) is equivalent to the fuel breakdown for your design energy. For example, if you enter a design that is 100% electric, Target Finder will use an assumption of 100% electricity to convert the source energy of your target into the associated site energy.
For an energy source entered as "Other” kBtu is the only unit that can be used. The conversion table will assist with converting various units of measurement to kBtu.
Three energy sources can be entered in Target Finder. Users must choose one source as electricity and may choose from grid-purchased, on-site solar and on-site wind (electricity).
The attribute data varies by Space Type. For guidance on input parameters, select Space Use Definitions from the menu bar on the left.
More than 50% of the gross floor area must be allotted as a single primary Space Type.
Secondary Space Types include garages, open parking lots, swimming pools, and Other.
To remove a space type, select Delete (upper right corner of the form). The screen will refresh and delete the space type.
To change input data on Results screen, select the Edit link on the section (upper right corner) you want to make changes. The screen will refresh and return to the attribute form. Make desired changes and select View Results to recalculate data and display the revised results.
Using the browser's Back button to make edits may cause previously entered data to be deleted.
Users can override the default values in Target Finder by entering their own data.