The multi-year effort was created to enhance electric service for customers by focusing on reducing both the frequency and duration of customer outages.

PG&E Electric Operations Asset Management vice president Patrick Hogan said, "The technology and the upgrades we have invested in allow us to deliver the safe, reliable and affordable service our customers expect and deserve."

PG&E was authorized by the California Public Utilities Commission (PUC) to invest $357m to improve electric distribution system reliability for customers through a three-year program in 2010.

The program focused on installation of intelligent switches on more than 500 electrical circuits, upgrade of rural circuits to help isolate service interruptions and minimize their impact on customers, as well as improvement of substations and circuit interconnectivity.