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

2. 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

3. Mega Infrastructure!

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

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

8. 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

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

10. Vacaville GCC
Iso-Base

11. 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)

12. 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

13. DASH for Corporate Real Estate
Emergency Response
DASH for Corporate Real Estate

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