|Company||Market Cap (USD)|
|NextEra Energy||$165.53 B|
|The Southern Company||$78.38 B|
|American Electric Power Company, Inc.||$50.95 B|
|Xcel Energy Inc.||$39.76 B|
|Consolidated Edison, Inc.||$34.89 B|
Duke Energy Corporation is an electric and natural gas utility company. Tracing its origins to 1900, Duke Energy now manages a number of nuclear, coal-fired, hydroelectric, oil and gas-fired plants, solar and wind farms, with more than 51,000 megawatts of capacity, and distributes electricity to 7.7 million customers in Ohio, Kentucky, Indiana, North and South Carolina, Florida, Tennessee, and Puerto Rico. It also serves more than 1.6 million natural gas customers in Ohio, Kentucky, Tennessee, and the Carolinas.
The market capitalization of a company, more simply referred to as "market cap", is the total market value of a publicly traded company's outstanding shares. It is often considered as a key indicator of what a company is worth.