Southern Transmission System Project

Southern Transmission System Project

Southern Transmission System Project

Participants: Anaheim (18%), Burbank (5%), Glendale (2%), Los Angeles (60%), Pasadena (6%), Riverside (10%)

About the Southern Transmission System

The Southern Transmission System Project (STS) is a 488 mile, 500kV DC bi-pole transmission line operated with near-perfect availability (97.2%). The STS project commenced commercial operations in July 1986. Construction to upgrade two AC/DC converter stations and increase their combined rating from 1,920 MW to 2,400 MW was completed in May 2011.

ABOUT US
Southern California Public Power Authority (SCPPA) is a Joint Powers Authority, created in 1980, for the purpose of providing joint planning, financing, construction, and operation of transmission and generation projects.
 
Comprised of eleven municipal utilities and one irrigation district, SCPPA's Members serve more than 5 million Californians (2 million customers) across a service area of 9,000 square miles. SCPPA's Members supply 16% of California's power.

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