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Heat Storm: Update on CPUC Follow-up Actions Steve Larson Executive Director California Public Utilities Commission September 14, 2006
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2 PG&E highest temperatures in 34 years Peak load 13% higher than last year SCE one in ten year event Peak load 3.6% higher than last year SDG&E one in 25 year event Peak load 11% higher than last year ISO Peak: 50,270 MW – 11% higher than 2005. Reserves were at 5%. The Heat Storm Was an Extraordinary Event Throughout the State (1)
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3 Storm affected electricity grid during weeks of July 17 and July 24 138 deaths attributed to the heat storm The electric distribution infrastructure took a beating Transformers failed PG&E 1200 SCE 1375 SDG&E 170 Customers lost distribution service, most for short times PG&E 1.3 million SCE 1.1 million SDG&E 45,000 The Heat Storm Was an Extraordinary Event Throughout the State (2)
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4 ISO, Generators, Utilities, Firefighters, and Customers Rose to the Occasion ISO operated the grid efficiently and flexibly Generators kept the power plants operating Utility crews replaced blown transformers Firefighters protected the grid Customers responded to Flex Your Power calls Your Power calls
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5 PUC Action Plan Underway Now I.Increase Targeted Energy Efficiency II.Increase Demand Response III.New Local Generation
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6 Increase Targeted Energy Efficiency PG&E and SCE now soliciting additional third party programs using 2006-2008 program budgets. Looking for innovative, targeted energy efficiency programs focusing on high-demand areas.
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7 Increase Demand Response I. Increased Air Conditioner Cycling II. Demand Response Programs For This Summer III. Demand Response Programs For 2007 and Beyond Beyond
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8 Increase Air Conditioner Cycling Peevey Assigned Commissioner Ruling August 15 Directs Edison to bring 300 MW more online by Summer 2007 Directs PG&E, SDG&E to report on opportunities
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9 Increased Demand Response Programs for this Summer E-4009: No advice letter. Initiated by Energy Division. Adopts a new triggering mechanism for the Demand Reserves Partnership program for the purpose of increasing demand response for the remainder of this summer. E-4011: SDG&E AL 1811-E. Approves modifications to SDG&E’s C&I 20/20 Program for the purpose of increasing more demand response for the remainder of this summer. E-4012: PG&E AL 2870-E. Approves a modification to the Demand Bidding Program (PG&E/SCE/SDG&E) for the purpose of increasing demand response for the remainder of this summer. E-4018: PG&E AL 2880-E. Approves re-opening PG&E’s Interruptible tariff for remainder of 2006 but not 2007.
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10 Demand Response Programs for Next Summer and Beyond Peevey Assigned Commissioner Ruling August 9 Directed new demand response proposals August 30th. Received proposals for new and expanded existing programs. Commission decision in November.
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11 New Local Generation Five New Generators for Edison, and Requests by PG&E and SDG&E Peakers Dispatchable Supports local distribution system
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12 Increased Use of Cooling Centers (1) PG&E 31 Cooling Centers PG&E separately refers approximately 300 customers who self-identify as “heat sensitive” to Rotating Outages Cooling Stations. PG&E is also expanding its efforts to inform its customers about how to take care of themselves in the event of extreme heat.
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13 Increased Use of Cooling Centers (2) SCE 38 Cooling Centers SCE has outreach program for targeted populations through informational fliers, public service announcements, targeted mailings, targeted events, local newspapers, and through established partnerships with businesses and other community-based organizations. In response to lessons learned during the last heat wave, SCE contractors have implemented grass roots door-to- door outreach within farm-worker communities, senior housing, and low-income housing developments to inform vulnerable populations of the availability of Cool Center sites.
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14 Increased Use of Cooling Centers (3) SDG&E San Diego County has 150 Cooling Centers SDG&E provides partial support to San Diego County’s Cool Zones Program through its CARE program. Outreach for the Cool Zones program is a collaboration between SDG&E and the County of San Diego. A kick-off event was held which received local media attention, and the County also promotes Cool Zones through its own methods.
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15 Taking Stock and Planning for the Future Is our forecasting good enough? Are we out of the woods for this summer? What does next summer look like? What about the future?
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16 Temperature Trends in the Last 100 yrs Summer
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17 Distribution of Maximum Temperatures: June - September Pasadena Berkeley Fresno Maximum Temperature 0 50 100 150 200 250 5861646770737679828588919497 100103106109 Temperature (F) Number of Days 1950-19741975-2000 Maximum Temperature 0 50 100 150 200 250 300 53565962656871747780838689929598 102 Temperature (F) Number of Days 1925-19491950-19741975-2000
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