Determine the energy use associated with building components, equipment, and other end uses in residential and commercial buildings.
The Baseline Energy Calculator yields the estimated energy use and CO2 emissions associated with losses through the building envelope and appliances and devices within residential and commercial buildings in the United States. The energy use and CO2 emissions can be divided by building type, climate zone, technology type, and other factors indicated below. CO2 emissions reported here do not include direct emissions associated with losses of working fluids from heating, cooling, water heating, and refrigeration systems.
To obtain an estimate for an energy use segment of interest, the applicable category selections must be made below. In each category shown, at least one selection is required. In some categories, multiple selections are permitted. Categories where multiple selections are allowed are indicated as such. Selections for the relevant groups are made by simply clicking the appropriate terms. Selected terms are highlighted, and clicking them again will remove them. Follow the numbered steps below, making the desired selections at each step. Once selections have been made in each category, click the 'Update' button in the Segment Size box on the right side of the screen (or the bottom of the page on mobile devices) to obtain the energy use and the associated CO2 emissions.If you are using this page with a screen reader and aural output, the content may be easier to understand if you change your screen reader settings so that numbers are read as words and not individual numerals.