environmental data in transmission planning august 3, 2015 carl zichella director of western...
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ENVIRONMENTAL DATA IN
TRANSMISSION PLANNING
AUGUST 3, 2015Carl Zichella
DIRECTOR OF WESTERN TRANSMISSION
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• NRDC Overview• WECC Overview• Environmental Resource Data• Zoning and Master Panning
Presentation Overview
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Who is NRDC?
http://www.nrdc.org
NRDC uses law, science and the support of 1.3 million
members and online activists to protect the planet's
wildlife and wild places and to ensure a safe and healthy
environment for all living
things.
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System Adequacy at WECC
• Lead transmission expansion planning for the Western Interconnection
• Annual study program• Congestion studies
Transmission Expansion Planning
Policy Committee
(TEPPC)
• Technical analysis• Studies• Data• Scenarios
Subcommittees and Work
Groups
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TEPPCMembers
Transmission
Stakeholders
State & Provincial Entities
Environmental
Stakeholders
Tribes
Other Stakeholder
s
Who Does TEPPC Serve?
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Environmental Data Work Group
• Environmental Data Task Force (Now the Environmental Data Work Group EDWG)
• Formed in June, 2010• Includes representation by broad
stakeholders• Provides input to transmission
expansion planning process
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Primary EDWG Products
• Available• Reviewed for Quality• Relevant to Transmission Planning
Preferred Data Sets
• Four Risk Levels• Low Risk (1) to Exclusion Area (4)Risk Classification System
• Compares relative risks of transmission alternatives
• Alternatives identified in long-term study cases
• Available for use outside of WECC
Comparison Methodology
• Considers “environmental risk contours”• Also considers cultural risks• Considers capital costs of “bending lines”
Review of Study Case Results
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Environmental/Cultural Data (Samples)
Preferred Data
Sensitive Species Areas
Tribal Lands
Conservation Areas
Wilderness Areas
Scenic Manageme
nt Areas
Historic Trails
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Risk Classification
Category 4• Exclusion Areas
Category 3• High Risk
Category 2• Low-to-moderate risk
Category 1• Lowest Risk
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Benefits of Environmental Data
• Decrease cost and conflict• Avoid delaysUse of Data at
Planning Stage
• Avoid or mitigate risks at planning levelEnsure Data
Quality
• Use by federal/state/provincial/ regional entities
Public Availability of
Tools
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12Example of Use: WECC Long-
Term Planning ToolCreates transmission expansion options based on study case inputs
• Loads, resource costs, fuel prices, carbon cost
Options are “point-to-point”• Need to “bend the lines”
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Environmental Risk Classes 1-4
Blue line connects endpoints
Darker areas = higher risk category
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LTPT With Environmental Overlay
Semi-transparent EDWG overlay on terrain map
Semi-transparent corridor over EDWG and terrain maps
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How Can You See the Data?
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ZONING AND MASTER PLANNING
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• Goals long term/ Plan Long Term• Orderly development over time• Renewable Resource Zoning
• Low Impact Lands (ex. Parts of Central Valley)
• Scalable Infrastructure• Avoid unnecessary ROWs• Reduce costs
Planning for Present and Future Needs
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• Plan together with Generation• RETI-style Zones
• Scale Transmission to meet expected needs
• Use Risk Methodology to avoid conflicts
• Realign Transmission Planning• Prioritize Transmission that meets
System Needs
Transmission Planning
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FOR MORE INFORMATION
Carl Zichella
Natural Resources Defense Council
(415) 875-6100
(916) 837-7127
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QUESTIONS?