Heat Storm: Update on CPUC Follow-up Actions

1
Heat Storm Update on CPUC Follow-up Actions
September 14, 2006

• Steve Larson
• Executive Director
• California Public Utilities Commission

2
The Heat Storm Was an Extraordinary Event
Throughout the State (1)

• PGE 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
• SDGE 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.

3
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
• PGE 1200
• SCE 1375
• SDGE 170
• Customers lost distribution service, most for
  short times
• PGE 1.3 million
• SCE 1.1 million
• SDGE 45,000

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

5
PUC Action Plan Underway Now

1. Increase Targeted Energy Efficiency
2. Increase Demand Response
3. New Local Generation

6
Increase Targeted Energy Efficiency

• PGE 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.

7
Increase Demand Response

• Increased Air Conditioner Cycling
• Demand Response Programs For This Summer
• Demand Response Programs For 2007 and
• Beyond

8
Increase Air Conditioner Cycling

• Peevey Assigned Commissioner Ruling August 15
• Directs Edison to bring 300 MW more online by
  Summer 2007
• Directs PGE, SDGE to report on opportunities

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 SDGE AL 1811-E.  Approves modifications
  to SDGEs CI 20/20 Program for the purpose of
  increasing more demand response for the remainder
  of this summer.
• E-4012 PGE AL 2870-E.  Approves a modification
  to the Demand Bidding Program (PGE/SCE/SDGE)
  for the purpose of increasing demand response for
  the remainder of this summer.
• E-4018 PGE AL 2880-E.  Approves re-opening
  PGEs Interruptible tariff for remainder of 2006
  but not 2007.

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.

11
New Local Generation

• Five New Generators for Edison, and
• Requests by PGE and SDGE
• Peakers
• Dispatchable
• Supports local distribution system

12
Increased Use of Cooling Centers (1)

• PGE
• 31 Cooling Centers
• PGE separately refers approximately 300
  customers who self-identify
• as heat sensitive to Rotating
• Outages Cooling Stations.
• PGE 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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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.

14
Increased Use of Cooling Centers (3)

• SDGE
• San Diego County has 150 Cooling Centers
• SDGE provides partial support to San Diego
  Countys Cool Zones Program through its CARE
  program.
• Outreach for the Cool Zones program is a
  collaboration between SDGE 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.

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?

16
Temperature Trends in the Last 100 yrs
Summer
17
Distribution of Maximum Temperatures June -
September
Pasadena
Berkeley
Fresno