Edison International generates its primary revenues through its principal subsidiary, Southern California Edison, which operates as a regulated electric utility serving millions of residential, commercial, and industrial customers. The business model relies on earning authorized rates of return on approved capital investments made into electrical grid infrastructure, transmission lines, and distribution networks. Under this regulatory framework, the company recovers its prudently incurred operational and maintenance costs through approved tariffs and rates authorized by regulatory bodies like the California Public Utilities Commission. By continuously expanding, modernizing, and maintaining its extensive electrical delivery system to support rising electricity demand and building electrification trends, the utility secures steady and predictable financial returns for its investors.