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Bradley NickellDirector of Transmission Planning
Incorporation of Water in Transmission PlanningApril 2, 2013
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• WECC Background• Transmission Expansion Planning• Incorporation of Water Information
RTEP UpdateToday’s Discussion
CaISO andCaliforniaTransmission Planning Group
CALIF
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• The Western Interconnection includes two Canadian provinces, a portion of Baja California Norte, Mexico, and all or part of the 14 Western stateso ~78 million peopleo ~229 GW of Generationo ~122 Thousand miles of Transmission lines
The Future of Electric Transmission in the WestWestern Interconnection Facts
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• Planning cooperation among Western Interconnection entitiesoCreate economic planning data setso Perform interconnection-wide transmission
expansion studieso Process consistent with applicable FERC Order
890 planning principles
• Governed by the WECC Transmission Expansion Planning Policy Committee (TEPPC)
Transmission Expansion PlanningHistory of Interconnection-wide planning in the West
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Transmission Expansion PlanningWhat are we planning for?
• Identify future infrastructure needs to 1. Serve the expected load reliably
2. Meet public policy directives
3. Minimize cost and environmental impact
• Accomplished by1. Maintaining a database of planning data and models
2. Facilitating an Interconnection-wide planning process
3. Performing economic analysis
4. Preparing Interconnection-wide transmission plans
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Transmission Expansion Planning Organizational Framework
VGSIntegration
Topic BWGA WIRAB/CREPC
Public Policy$12.0M
WREZPhases 3 & 4
NationalLabs
Technical Assistance/Coordination
Topic AWECC/TEPPC
Interconnection-wide Planning$14.5M
ColumbiaGrid
CA/MXCAISOWest
Connect
SWAT
Other SPG
NTTG
CCPG Sierra
SPGTransmission Planning
NGO Participation
State/ProvincialPolicy/Participation
LRS/LSEResource/Load Planning
Coordination
PCCReliability
UniversitiesTraining/Analysis
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Data – Tools – Models • Transmission Planners
and Developers• Generation Planners and
Developers• States and Provinces• Environmental groups
Analysis – Results – Plans • States and Provinces• Environmental groups• Advocacy Groups
TEPPC Stakeholders What do they value?
TEPPC’s diverse stakeholders value different products and processes
All Value the Information Sharing
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TEPPC Products – Analysis2022 expected generation resource mix
Conventional Hydro24%
Steam - Coal26%
Nuclear7%
Combined Cycle15%
Combustion Turbine1%
Cogeneration8%
Other1%
Biomass RPS 1%Geothermal 4%
Small Hydro RPS 1%Solar 3%
Wind 8%
WECC 2022 Energy Generation by Type
~60% use water for cooling
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TEPPC Products – Tools and ModelsLong-term Planning Tool
Capital Expansion model that co-optimizes generation and transmission expansion
Considers policy, cost, and environmental factors
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+ 166+ 92
+ 1318+ 1
+ 1360+ 599
+ 38
+767+ 18
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
Biomass RPS
Solar CSP6
Solar PV
Wind
Resource Additions 12,000 GWh
Wind Solar PV Solar Thermal Small Hydro Geothermal Biomass RPS
TEPPC Products – Data Generation Resource Availability
Source: Map excerpt - WREZ Phase I report, Numbers – WECC
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TEPPC Products – DataWater Availability for Future Generation
Source: Sandia National Laboratory, Resource Constraint and Cost Maps for WECC 20-yr Planning
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TEPPC Products – Data Generation Heat Rates
Source LocationWet Cooling(Btu/kWh)
Dry Cooling(Btu/kWh)
Penalty(Btu/kWh)
APS AZ 6,473 7,311 838
Avista NW 6,722 6,856 134
Pacificorp UT 6,885 6,963 78
Xcel CO 6,947 7,143 196
CEC CA (Desert) 6,596 6,795 199
CEC CA (Coast) 6,573 6.596 23
Combined Cycle Heat Rate Comparison for Wet and Dry Cooling
Source: E3 Cost and Performance Review of Generation Technologies, Recommendations for WECC.
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Source: Sandia National Laboratory, Resource Constraint and Cost Maps for WECC 20-yr Planning
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2013 Interconnection-wide PlanPlan Organization
Background
and Context
Data and Assumptions
10-Year Horizon
20-Year
Horizon
Plan Summary
Tools and Models
WECC Path Reports Appendices
Sections are layered from broad to detailed
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• Water usage in Production Cost Modeling• Water cost• Additional comparisons
oDroughtoWater withdraw and consumption
Opportunities
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?Questions
Brad NickellDirector of Transmission PlanningWestern Electricity Coordinating Council155 North 400 West, Suite 200Salt Lake City, Utah [email protected]
