incorporating water into electricity planning doug larson executive director western interstate...
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Incorporating Water into Electricity Planning
Doug LarsonExecutive DirectorWestern Interstate Energy Board
WSWC-WGA Water/Energy WorkshopApril 2, 2013
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Outline
• Western Interconnection electrical context• Value of water info for --
• Electric transmission planners and policy makers• Utility resource plan developers and reviewers• Generation developers
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Western Interconnection context
• Load growth• Generation resources• Generation retirements and additions• Technology trends• Drivers
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Load growth – low and could be lower
-1.0%
0.0%
1.0%
2.0%
3.0%
4.0%
5.0%
AB AZ BC CA CO ID MT NV NM OR UT WA WY WECC
WECC Reference CaseSPSC High DSM Case
Compound Annual Growth Rates (Annual Energy, 2010-2032)
Source: Lawrence-Berkeley National Laboratory work for SPSC
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Generating resources – Renewables, coal
Renewable Resources
Coal demand and resources
Solar Geothermal Wind
Coal plant retirements
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Generating resources – natural gas
6
227,386 GWh
234,683 GWh
Source: Western Electricity Coordinating Council
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Source: Western Electricity Coordinating Council
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Factors driving generation procurement decisions
• Cost• State policies
• Renewable Portfolio Standards• Greenhouse gas emissions
• Resource flexibility
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Source: Western Electricity Coordinating Council
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80% Renewables in 2050
Concentrating solar power Geothermal
Source: NREL Electricity Futures Study
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(insert really cool image/supergraphic from your work)
Caption or heading (if you have one)
Operational water consumption factors for electricity generating technologies
CSP and PV Biopower Nuclear Natural Gas Coal
Recirculating Cooling Once-through Cooling Pond Cooling Dry Cooling Hybrid Cooling
No Cooling Required
Source: Macknick et al. 2011
Ope
ratio
nal w
ater
con
sum
ption
(Gal
/MW
h)
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Geothermal
Concentrating Solar Power
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Users of water information: Electric transmission planners Policy makers
1. Transmission planners• WECC planning• Regional planning groups
2. Utility integrated resource plans• Utility resource planners• PUC reviewers of utility resource plans
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Users (cont’d)
4. Generation and transmission developers• Screening tool for where regulators and policy makers may have
concerns
5. Policy makers • State energy policy offices and PUCs• Federal land management agencies
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