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Largest U.S. utilities

Largest U.S. utilities

The Duke Energy-Progress Energy merge would create the largest U.S. utility by market capitalization ($36.5 billion), number of customers (7.1 million) and energy generation capacity (shown below).

Rank Utility Gigawatts
1 Southern 42.9
2 NextEra (parent of Florida Power & Light) 42.7
3 AEP (American Electric Power) 37
4 Duke 35.4
5 Calpine 28.3
6 Entergy 27.9
7 Dominion 25.6
8 Exelon 24.9
9 First Energy-Allegheny 23.7
10 Progress Energy 21.8

* Based on energy capacity owned as of Sept. 30 for Duke and Progress and as of Dec. 31, 2009, for all others on the list.

Source: Company filings

Residential customer service

Duke Energy delivered the best customer satisfaction to residents in the southeastern United States, the latest J.D. Power survey said. Progress Energy Florida was last. The rankings included 14 utilities that serve the Southeast.

Rank Utility Score
1 Duke Energy (Carolinas) 656
4 Progess Energy Carolinas 651
7 Florida Power & Light 645
13 Tampa Electric 610
14 Progress Energy Florida 598

Source: J.D. Power and Associates

Largest U.S. utilities 01/10/11 [Last modified: Monday, January 10, 2011 8:06pm]

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