Frequently Asked Questions

How much electricity is lost in transmission and distribution in the United States?

The U.S. Energy Information Administration (EIA) estimates that electricity transmission and distribution losses average about 6% of the electricity that is transmitted and distributed annually in the United States.1
 
EIA has estimates for total annual losses related to electricity transmission and distribution (T&D) and other losses in the State Electricity Profiles. Data for each state and for the United States are in Table 10: Supply and Disposition of Electricity of each profle. See the row for Estimated Losses in the table.
 
To calculate T&D losses as a percentage, divide Estimated Losses by the result of Total Disposition minus Direct Use. Direct Use electricity is the electricity that is generated at facilities and that is not put onto the electricity transmission and distribution grid, and therefore does not contribute to T&D losses.
 
1Average of annual losses in 2004 through 2013; estimated losses were 5% in 2013.
 
 
Last updated: July 10, 2015

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