WECC 2026 Studies Program: Sec. 368 Energy Corridors Spatial Assessment Status Update Jim Gazewood, PM, Sec. 368 Reviews, BLM WO Jon Jensen, Staff Engineer, WECC Jim Kuiper, Geospatial Engineer, Argonne Nat. Lab, Sec. 368 W E C C E S T E R N L E C T R I C I T Y O O R D I N A T I N G O U N C I L
2 WECC Sec. 368 Spatial Assessment – Update Outline • Background: Ongoing Sec. 368 Regional Reviews • How the WECC 2026 Study Program Results Drive the Spatial Assessment and Can Provide Benefit to the Regional Reviews • Reasonable Foreseeable Development Insights for Future Land Use Planning Gained from this Assessment • Remaining Action to Complete this Collaborative Work W E C C E S T E R N L E C T R I C I T Y O O R D I N A T I N G O U N C I L
3 W E C C E S T E R N L E C T R I C I T Y O O R D I N A T I N G O U N C I L
4 R1 has 26 Existing Corridors W E C C E S T E R N L E C T R I C I T Y O O R D I N A T I N G O U N C I L
5 R2 has 27 Existing Corridors W E C C E S T E R N L E C T R I C I T Y O O R D I N A T I N G O U N C I L
6 Regional Review Schedule and The Two Phase Approach Each Review will take 9 ‐ 12 Months Dependent upon Complexity Each Regional Review is Composed of Two Phases W E C C E S T E R N L E C T R I C I T Y O O R D I N A T I N G O U N C I L
7 Tool 1: Developed Sec. 368 Energy Corridor Internet Mapper Corridor Mapping Tool used to: • Ensure Stakeholder Understanding of Known Corridor Concerns / Opportunities • Facilitate Stakeholder Online Corridor Input to Specific Mileposts or Line Segments • Leverage Our Developed Geospatial Data for the Final Corridor Recommendations Identify Corridor Adds, Edits or Deletes to Minimize Constraints and Maximize Opportunities W E C C E S T E R N L E C T R I C I T Y O O R D I N A T I N G O U N C I L
8 Tool 2: Developed Corridor Abstracts to Document Known Concerns Corridor Abstracts used to: • Ensure Stakeholder Understanding of Known Corridor Concerns / Opportunities • Focus Stakeholder Corridor Input to Specific Mileposts or Line Segments • Document Our Analysis with the Geospatial Data for Final Corridor Recommendations W E C C E S T E R N L E C T R I C I T Y O O R D I N A T I N G O U N C I L
9 Overview of the Draft Region 1 Recommendations Report Executive Summary 1. Introduction and Background 2. Region 1 Review 2.1 Current Conditions and Projected Growth 2.2 Land Use Planning Process and Regional Reviews 2.3 Summary of Stakeholder Input 2.4 Regional Review and Analysis Process 2.5 Recommendations 2.6 Next Steps / Lessons Learned W E C C E S T E R N L E C T R I C I T Y O O R D I N A T I N G O U N C I L
10 Overview of the Draft Region 1 Report (Cont’d) 3. Region 1 Corridor Summaries & Recommendations 3.1 General Recommendations for Future Development 3.2 Interagency Operating Procedures (IOPs) 3.3 Corridor Summaries, Recommendations, and Abstracts 4. References 5. Glossary Index Appendix A: GIS Data Layers in Sec. 368 Corridor Mapping Tool Appendix B: Stakeholder Input W E C C E S T E R N L E C T R I C I T Y O O R D I N A T I N G O U N C I L
11 Overview of the Draft Region 1 Report (Cont’d) Executive Summary Introduction and Background Region 1 Review Region 1 Corridor Summaries & Recommendations References / Glossary / Index / Appendices Anticipated Additions to R1 Review (Administrative) Record Due to Later Work Completion Timing. For R2 ‐ R6 Reviews will Utilize from Onset: NREL Energy Future Studies Synthesis/Analyses for Regional Reviews WECC Sec. 368 Spatial Assessment of High Utilization Pathways / Lines Lessons Learned with Input from Regional Review Stakeholders W E C C E S T E R N L E C T R I C I T Y O O R D I N A T I N G O U N C I L
12 WECC Sec. 368 Spatial Assessment – Update Outline Background: Ongoing Sec. 368 Regional Reviews • How the WECC 2026 Study Program Results Drive the Spatial Assessment and Can Provide Benefit to the Regional Reviews • Reasonable Foreseeable Development Insights for Future Land Use Planning Gained from this Assessment • Remaining Action to Complete this Collaborative Work W E C C E S T E R N L E C T R I C I T Y O O R D I N A T I N G O U N C I L
13 2026 Study Program Results Driving the Spatial Assessment W E C C E S T E R N L E C T R I C I T Y O O R D I N A T I N G O U N C I L
14 Study Results Driving the Spatial Assessment: ID High Paths W E C C E S T E R N L E C T R I C I T Y O O R D I N A T I N G O U N C I L
15 Study Results Driving the Spatial Assessment: High Paths To 368 Regions W E C C E S T E R N L E C T R I C I T Y O O R D I N A T I N G O U N C I L
16 Study Results Driving the Spatial Assessment: ID Cut Plane Trans Lines 2 1 3 4 W E C C E S T E R N L E C T R I C I T Y O O R D I N A T I N G O U N C I L
17 Study Results Driving the Spatial Assessment: R1 Buses to Platts GIS Data W E C C E S T E R N L E C T R I C I T Y O O R D I N A T I N G O U N C I L
18 Study Results Driving the Spatial Assessment: R2 Buses to Platts GIS Data W E C C E S T E R N L E C T R I C I T Y O O R D I N A T I N G O U N C I L
19 WECC Sec. 368 Spatial Assessment – Update Outline Background: Ongoing Sec. 368 Regional Reviews How the WECC 2026 Study Program Results Drive the Spatial Assessment and Can Provide Benefit to the Regional Reviews • Reasonable Foreseeable Development Insights for Future Land Use Planning Gained from this Assessment • Remaining Action to Complete this Collaborative Work W E C C E S T E R N L E C T R I C I T Y O O R D I N A T I N G O U N C I L
20 Results Driving the Spatial Assessment: LUP Foreseeable Development Spatial Proximity to Sec. 368 Corridors: For Path 47, the WECC 2026 Study In, Out or Near Program indicates in the general area of Sec. 368 Corridors 81 ‐ 213 & 81 ‐ 272 that: U90 > 20% 27.47% 22.10% 19.42% PC11 Coal Retirements WECC 2026 Common Case Version 1.2 U90 > 20% 29.27% 25.88% 24.42% PC12 High RPS (Version 5) WECC 2026 Common Case Version 1.7 U90 > 20% 27.43% 24.26% 22.74% PC22 NS Flows, Increased RE So CA WECC 2026 Common Case Version 1.6 WECC 10 ‐ Year Power Flow Engineering Studies Indicate Potential Infrastructure Constraints / Needs – Useful for LUP RFDs W E C C E S T E R N L E C T R I C I T Y O O R D I N A T I N G O U N C I L
21 WECC 2026 Studies Program Results: Provides Insights Needed for R2 ‐ R6 W E C C E S T E R N L E C T R I C I T Y O O R D I N A T I N G O U N C I L
22 RFD Insights for Future LUP Action Gained from Assessment Can Only Be Used for General Insight on Western Interconnect Potential System Utilization as Derived from WECC’s 10 ‐ Year Study Program: – Through the planned Sec. 368 Regional Review Reports, communicates to a wider array of Stakeholders the general importance of WECC 10 ‐ Year Studies; – Provides the Sec. 368 Energy Corridor Review Program with Critical Energy Future Insights which have not been readily available in the past; – Emphasizes the Importance of Continued DOI, BLM and USFS Engagement / Participation within WECC Activities and Associated Data Sharing Initiatives W E C C E S T E R N L E C T R I C I T Y O O R D I N A T I N G O U N C I L
23 WECC Sec. 368 Spatial Assessment – Update Outline Background: Ongoing Sec. 368 Regional Reviews How the WECC 2026 Study Program Results Drive the Spatial Assessment and Can Provide Benefit to the Regional Reviews Reasonable Foreseeable Development Insights for Future Land Use Planning Gained from this Assessment • Remaining Action to Complete this Collaborative Work W E C C E S T E R N L E C T R I C I T Y O O R D I N A T I N G O U N C I L
24 Remaining Actions to Complete Collaborative Work Obtain R3 ‐ R6 Cut ‐ Plane Bus Lat / Long Coordinates from WECC • Need to Update Spreadsheet for Compressed Air & High Wind • Results will be Posted on the WECC TEPPC Study Program Page • BLM / ANL to Develop Simple R1 Report Summary Narratives for Path 61 (Lugo to Victorville 500 kV) and Path 60 (Inyo to Control 115 kV) High Utilization Study Case Results; Involve WECC Staff with a Review of the Simple Narratives to be Used • Potential Need for Other WECC Briefings on this Work? W E C C E S T E R N L E C T R I C I T Y O O R D I N A T I N G O U N C I L
25 Special Thanks to: Jon Jensen, Hobie Willis and Vijay Satyal of WECC Jim Kuiper and Bob Moore of ANL and Others Who Have Supported the Concept … W E C C E S T E R N L E C T R I C I T Y O O R D I N A T I N G O U N C I L
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