Earthquake Risk Management Program Pacific Gas & Electric Company Kent Ferre, SE Manager Geosciences Department Northern California Earthquake Hazards Workshop 12 February 2014

PG&E’s Service Territory Fun Facts: 70,000 Square Miles 15 Million People Served 4.3 Million Gas Customers 5.1 Million Electric Customers 3,400 Buildings

Mega Infrastructure!

Fault Crossing Mitigation Line 103 San Andreas Fault Crossing – Creeping Section Installed in 1930 – 44” total displacement after 83 years!

Lifelines Research Qualification Testing of High Voltage Electrical Equipment Transformer Bushings Switches CCVTs Circuit Breakers

Lifelines Research – Advanced Assessments 8-story steel moment frame Pre-Northridge connections Performance evaluated using a probabilistic approach Predicted tagging based on capacity to withstand aftershocks

Lifelines Research Non-code compliant - out-of-plane anchorage testing

Vacaville GCC Iso-Base

Restoration Concept—SF Potrero A Martin H Mission X Embarcadero Z Larkin Y 3.8 mi, 230kV single circuit 4th at Folsom 2.3 mi, 230kV single circuit 115kV single circuit (on common poles) 0.6 mi, 230kV single circuit 0.6 mi, 115kV single circuit 1.2 mi, 115kV single circuit H-Z (230kV) A-X (115kV) A-Y (115kV)

Oakland Underground Cable Restoration KD-1 (Option B, New OH Line), 0.3 mi Clairemont K KD-2 (Option B, New OH Line), 0.5 mi Hayward Fault Transition point, Typ. KD-1 (Existing UG) KD (Option A, New OH full distance), 2.6 mi KD-2 (Existing UG) Oakland D

DASH for Corporate Real Estate Emergency Response DASH for Corporate Real Estate

In Conclusion: An effective seismic risk management program + highly technical, dedicated staff + accountability + management support + effective communication = An acceptable level of earthquake risk