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SDG&E’s Service Territory

The Growing Power Needs in Orange County Source: U.S. Census / SDG&E Energy demand in Orange County has more than tripled over the last 26 years: 141 MW in MW in 2010

South Orange County Needs Power Reliability

Goals for the South Orange County Reliability Enhancement Provides System Reliability Upgrades Outdated Equipment Meets Needs of Residents & Businesses Needed to Meet Federal and State Energy Regulations

Rebuild San Juan Capistrano Substation, which was built in the 1950’s Upgrade Transmission Lines 138 kV to 230 kV Replace existing structures with taller, new steel poles The South Orange County Reliability Enhancement

South OC Substation Arrangement – Today

Future South OC Substation Arrangement

Proposed Route Along Existing Transmission Corridor

Rancho Madrina - Today

Rancho Madrina - Concept

San Juan Capistrano Substation in the 1950’s

San Juan Capistrano Substation Today

San Juan Capistrano Substation - Concept

Proposed Permitting and Construction Schedule CPUC FilingMay 18, 2012 Scoping MeetingsJanuary 23 / Draft EIRQ3 – 2013 Final EIRQ4 – 2013 CPUC DecisionQ4 – – 2017Rebuild SJC Substation Transmission Line Replacement All Dates are Estimate

For More Information Duane Cave – External Relations Manager (949) or Visit our Project Outreach Office Camino Capistrano, Unit B San Juan Capistrano, Ca www. SDGE.com/Southcounty