Southern California Edison`s power grid is connected to pg-E by Path 26 wires, which typically follow Interstate 5 via the Tejon Pass. The connection is in a large substation in Buttonwillow. Buttonwillow North`s Path 15 and Path 66 and WAPA eventually connect to the BPA network in the Pacific Northwest. There are several other connections with local and non-government services, z.B. Path 46. Southern California Edison (or SCE Corp),200, Edison International`s largest subsidiary, is the largest electricity supply company for much of Southern California. It provides electricity to 15 million people in a service area of about 50,000 square kilometres. However, the Los Angeles Department of Water and Power, San Diego Gas-Electric (SDG-E), Imperial Irrigation District and a few small municipal plants operate large parts of Southern California. The northern part of the state is generally served by the San Francisco Gas and Electricity Company. Other utilities in California are SDG-E, PacifiCorp, Bear Valley Electric and Liberty Utilities.
 Southern California Edison has a long history of researching in the energy arena. This often includes cooperation with other companies and public bodies. One example is the Solar Feasibility Generator, a solar-powered power plant that could generate electricity 24 hours a day. This was done by heating molten salts that would maintain heat during the day and be used to generate electricity at night. [Citation required] Southern California Edison has agreed to pay a $650,000 deal for the 2011 blackout with FERC and NERC.   In 2014, SCE had a 23% renewable energy mix.  Until 2016, 28.2% of SCE`s energy sources were renewable.  In addition, SCE operates a regulated gas and water supplier. SCE is the only commercial supplier of natural gas and fresh water to Santa Catalina Island, including the city of Avalon, California. SCE operates utilities under the name Catalina Island Gas Company and Catalina Island Water Company.