Heat storm update on cpuc follow up actions
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September 14, 2006. Heat Storm: Update on CPUC Follow-up Actions. Steve Larson Executive Director California Public Utilities Commission. The Heat Storm Was an Extraordinary Event Throughout the State (1). PG&E highest temperatures in 34 years Peak load 13% higher than last year

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Heat Storm: Update on CPUC Follow-up Actions

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September 14, 2006

Heat Storm: Update on CPUC Follow-up Actions

Steve Larson

Executive Director

California Public Utilities Commission


The Heat Storm Was an Extraordinary Event Throughout the State (1)

  • 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 (2)

  • 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


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


PUC Action Plan Underway Now

  • Increase Targeted Energy Efficiency

  • Increase Demand Response

  • New Local Generation


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.


Increase Demand Response

  • Increased Air Conditioner Cycling

  • Demand Response Programs For This Summer

  • Demand Response Programs For 2007 and

    Beyond


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


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.


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.


New Local Generation

  • Five New Generators for Edison, and

    Requests by PG&E and SDG&E

    • Peakers

    • Dispatchable

    • Supports local distribution system


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.


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.


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.


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?


Temperature Trends in the Last 100 yrs

Summer


Maximum Temperature

250

200

150

Number of Days

100

50

0

58

61

64

67

70

73

76

79

82

85

88

91

94

97

100

103

106

109

Temperature (F)

1950-1974

1975-2000

Maximum Temperature

300

250

200

150

Number of Days

100

50

0

53

56

59

62

65

68

71

74

77

80

83

86

89

92

95

98

102

Temperature (F)

1925-1949

1950-1974

1975-2000

Maximum Temperature

200

180

160

140

120

Number of Days

100

80

60

40

20

0

60

67

70

73

76

79

82

85

88

91

94

97

100

103

106

109

112

Temperature (F)

1950 - 1974

1975 - 2000

Distribution of Maximum Temperatures: June - September

Pasadena

Berkeley

Fresno


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