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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Heat storm update on cpuc follow up actions

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

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

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, 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

PUC Action Plan Underway Now

  • Increase Targeted Energy Efficiency

  • Increase Demand Response

  • New Local Generation


Increase targeted energy efficiency

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

Increase Demand Response

  • Increased Air Conditioner Cycling

  • Demand Response Programs For This Summer

  • Demand Response Programs For 2007 and

    Beyond


Increase air conditioner cycling

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

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

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

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

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

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

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

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

Temperature Trends in the Last 100 yrs

Summer


Distribution of maximum temperatures june september

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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