The United States has the second largest electricity sector in the world, with 4,178 Terawatt-hours of generation in 2023. In 2023 the industry earned $491b in revenue (1.8% of GDP) at an average price of $0.127/kWh.
There are three major synchronous electrical grids in the continental US: the Eastern Interconnection, the Western Interconnection and the Texas Interconnection. Within these physical grids, there are Independent System Operators and Regional transmission organizations, which are not-for-profit organizations that operate an area of the grid and are obliged to provide indiscriminate access to various suppliers (e.g. power plant owners, transmission line providers) to promote competition. Some areas instead have a vertically integrated utility like Southern Company where everything is done by one company.