|Company||Market Cap (USD)|
|NextEra Energy||$146.07 B|
|The Southern Company||$77.43 B|
|Duke Energy Corporation||$70.04 B|
|American Electric Power Company, Inc.||$44.29 B|
|PG&E Corporation||$41.59 B|
Xcel Energy Inc. is an electric utility company. Through its subsidiaries, Xcel Energy operates coal, hydro, nuclear, and biomass power plants, serving more than 3.3 million electricity customers, and delivers natural gas to 1.8 customers in Minnesota, Michigan, Wisconsin, North Dakota, South Dakota, Colorado, Texas, and New Mexico.
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.