Largest energy utility companies in the U.S. based on market value 2019

This statistic shows the largest electric utilities in the United States as of April 2019, based on market value. With a market value of around 64.9 billion US dollars, North Carolina-based electric utility Duke Energy was ranked second in 2019. Follow this link to get access to the top 400 U.S. utility companies list.

Electric utilities in the United States

Utilities provide the public with vital commodities or services such as power, natural gas and water. The number of electric utility companies operating in the United States is estimated at over 3,300, with around 200 of them providing power to the majority of users. The U.S. power grid connects about 2.5 million miles of feeder lines and over 450,000 miles of high-voltage transmission lines. The consumers of utility companies can be segmented into industrial, commercial and residential users, the latter of which account for the bulk of retail electricity sales. U.S. residential electricity users bought some 1.46 petawatt hours worth of power in 2018.

Following its merger with Progress Energy, Duke Energy became the one of the largest U.S. energy companies in terms of market value* and was ranked second in the 2018 list of leading electric utilities in the United States. As is the case with 17th-ranked Wisconsin Energy, a utility’s name often indicates its main region of operation in a market which used to be highly regulated. Over the past decades, the generation, transmission and distribution of electricity has been deregulated in various states, including Texas, New York and California. The extent to which the local electricity market is regulated also determines the level of power rates paid by consumers. The structure and design of electricity tariffs may vary greatly throughout the country. While electricity prices in Hawaii and Connecticut are considerably higher than the national average retail price, customers in Louisiana and Idaho are asked to pay the lowest rates.

Largest gas and electric utilities in the U.S. as of April 2019, based on market value

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Release date

May 2019


North America

Survey time period

as of April 18, 2019

Supplementary notes

Including only public companies

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Statistics on "Electric utilities in the United States"

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