Transcript No Slide Title

California Energy Commission
Water, Power
and California’s Future
Commissioner
Karen Douglas, J.D.
Water, Energy and Climate Change
North Bay Watershed Association 2008 Conference
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California Energy Commission
Common System Issues
• Growing Demand
• Adequate Supplies
• Resource Quality
• Infrastructure
• Cost
• Environmental Protection
• Long-term Uncertainty
Climate Change forces us
to examine the nexus
between
water & energy!
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California Energy Commission
Intersection of Water-Energy
• Electricity Generation
–
–
–
–
Hydro-electric Generation
Biogas and Other Renewable Generation
Power Plant Cooling
21 % of California’s Electricity Supply
• Water Conveyance, Treatment and Delivery Systems
– Natural and Manmade Systems to Move Water to Where it is
Demanded
– 27 % of total energy demand
• Water-related End Uses
– 73 % of total energy demand
• Water Supplies
– Efficiency and Conservation
– New Sources: Desalination, Stormwater Capture; Recycled
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California Energy Commission
Water as Power
Other Renewable
9%
Nuclear
13%
Natural Gas
41%
Coal
16%
Hydroelectric
21%
CEC – California’s Generation Mix, 2006
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California Energy Commission
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California Energy Commission
55000
Patterns of Peak Demand
Demand is volatile in the summer
50000
45000
40000
35000
30000
Low points are weekend or holidays
25000
Summer (May - Sept)
20000
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California Energy Commission
Peak is Important
6,000
Increase in Peak Demand 2012-2018
5,000
Increase in Peak Demand 2007-2012
Megawatts
4,000
3,000
2,000
1,000
Bay Area, North and
Central Coast
South Coast/San
Diego
Non-Coastal LA
Basin
Valley/Desert
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California Energy Commission
Energy Demand of New Water
Ocean Desalter
13,503
9,820
Source of Water
East Branch State Water Project
West Branch State Water Project
7,672
6,138
Colorado River Aqueduct
Chino Desalter
5,217
3,222
Ion Exchange
kWh/MG
Groundw ater Pumping
Recycling
2,915
1,228
Source: Dr. Robert Wilkinson, Environmental Studies Program, University of California, Santa Barbara, and Martha
Davis, IEUA
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California Energy Commission
Energy in the Water-Use Cycle
Source
Water
Conveyance
Outside the retail meter
Water
Treatment
Water
Distribution
End-Use
Wastewater
Discharge
Recycled Water
Treatment
Recycled
Water
Distribution
Wastewater
Treatment
Wastewater
Collection
Agricultural
Residential
Commercial
Industrial
Source
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California Energy Commission
California’s Greenhouse Gas
Emissions
ARB - Emission Inventory for 2004
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California Energy Commission
Regional Issues and Differences
Water Supply and Conveyance
Water Treatment
Water Distribution
Wastewater Treatment
Regional Total
Indoor Uses
Northern
Southern
California
California
kWh/MG
kWh/MG
2,117
9,727
111
111
1,272
1,272
1,911
1,911
5,411
13,022
Outdoor Uses
Northern
Southern
California
California
kWh/MG
kWh/MG
2,117
9,727
111
111
1,272
1,272
0
0
3,500
11,111
One solution may not be appropriate for
everyone.
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California Energy Commission
WET CAT Strategies
• Require Recycle Water Programs at all
Wastewater Treatment Plants
• Develop Urban Runoff and Expanded
Stormwater Capture Programs
• Promote Greater End Use Water
Efficiency through Mandates and
Incentives
• Lower the Energy Intensity of the
California’s Water Systems
• Develop Renewable Electric
Generation at Water-related Sites
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California Energy Commission
Achieve AB 32 Goals
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California Energy Commission
“Anyone who can solve the problems
of water will be worthy of
two Nobel Prizes –
one for peace and
one for science.”
John F. Kennedy
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California Energy Commission
Global Warming Solutions Act
“The debate is over.
We know the
science. We see the
threat. And we know
that the time for
action is now.”
Executive Order S-3-05
– Governor Arnold
Schwarzenegger
AB 32 (Nunez), Statutes of 2006
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California Energy Commission
Information
• Energy Commission’s Website:
http://www.energy.ca.gov/
– California Water-Energy Relationship
• Climate Action Team and Initiatives
http://www.climatechange.ca.gov/climate_action_t
eam/index.html
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