PG&E Corporation is a holding company. The Company's primary operating subsidiary is Pacific Gas and Electric Company (the Utility), a public utility operating in Northern and Central California. The Utility is engaged in the sale and delivery of electricity and natural gas to customers. The Utility generates electricity and provides electric transmission and distribution services throughout its service area in northern and central California to residential, commercial, industrial, and agricultural customers. The Utility provides electricity, transmission, and distribution services in its service area. The Utility owns approximately 18,000 circuit miles of interconnected transmission lines operating at voltages ranging from 60 kilovolts (kV) to 500 kV. The Utility also operates 33 electric transmission substations with a capacity of approximately 67,000 megavolt amperes (MVA). Customers can also obtain electricity from alternative providers such as municipalities (CCAs).