Baseline Energy Calculator*
The Baseline Energy Calculator yields the estimated energy use and CO2 emissions associated with losses through the building envelope, 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, 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. Follow the numbered steps below, making the desired selections at each step. Once selections have been made in each category, click the 'Calculate' button at the bottom right of the screen to obtain the energy use and associated CO2 emissions results. Initial results may cleared by clicking the 'Reset' button or updated by clicking the 'Calculate' button again.
The underlying data for this calculator are from the 2019 Annual Energy Outlook (AEO) released by the U.S. Energy Information Administration (EIA).