|Company||Market Cap (USD)|
|NextEra Energy||$146.07 B|
|Duke Energy Corporation||$70.04 B|
|American Electric Power Company, Inc.||$44.29 B|
|PG&E Corporation||$41.59 B|
|Xcel Energy Inc.||$34.67 B|
Southern Company is an electric utility company. Through its subsidiaries, it serves 9 million natural gas and electric utility customers in Alabama, Georgia, Illinois, Mississippi, Tennessee, and Virginia. With origins dating back to 1924, it now operates multiple coal-fired, nuclear, and natural gas power plants as well as some renewable energy sources.
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.