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10-Year Study Results California Resource Option

10-Year Study Results California Resource Option. Study Concept Starting case: 2022 High Load (PC1-5) Increase WECC annual energy demand 8% Results in additional 12,000 GWh of RPS resource requirements (per statutes) Model added 12,000 GWh in regions throughout WECC (w/ transmission) Goal

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10-Year Study Results California Resource Option

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  1. 10-Year Study ResultsCalifornia Resource Option

  2. Study Concept Starting case: 2022 High Load (PC1-5) Increase WECC annual energy demand 8% Results in additional 12,000 GWh of RPS resource requirements (per statutes) Model added 12,000 GWh in regions throughout WECC (w/ transmission) Goal Compare different resource and transmission options Total (capital and production) cost comparisons Will be shown at a later date Renewable Options Under High Load CasesThe Basics

  3. Renewable Options Under High Load Cases Increase WECC-wide load 8% 1 Add: 12,000 GWh to meet WECC RPS 2 3 Add transmission For these regions

  4. Increase WECC-wide load 8% 1 8% 8% increase to peak and energy 10% 10% decrease to energy Higher Load = Additional RPS Energy

  5. Add 12,000 GWh to meet WECC RPS 2 Extrapolation Method

  6. Resource Option StudiesBreakdown of Incremental 12,000 GWh Wind Solar PV Solar Thermal Small Hydro Geothermal Biomass RPS

  7. 1- Check PRM 2 - Add CTs (if needed) = Higher load and new resources

  8. PC1-5 High Load PRM Gap 1) Added CTs in 100 MW increments to make up this 11,426 MW PRM Gap 2) CT’s were adjusted in Renewable Options Under High Load studies

  9. Additional resources change this number

  10. 3 fewer CTs needed in Basin This makes sense: 3,000 MW wind × 10% = 300 MW to peak = 3 fewer CTs

  11. 3 Add transmission • Transmission Expansion Projects Path 8 Upgrade MSTI + SWIP N Selkirk – Bell – Ashe Nicola – Chief Joe Selkirk – Ashe DC Selkirk – Buckley DC WY-CO Intertie TransWest Express Zephyr A /B/C/D High Plains Express SSPG East SSPG North SSPG South High Plains Express None Centennial West

  12. Now to the results… • Resource assumption overview • Portfolio Case generation results (versus PC1-5 High Load) • Transmission projects overview • Expansion case generation results (versus PC1-5 High Load and Portfolio Case) • Path flow results - Reviewed duration plots for key WECC paths. Will show some that are interesting in this presentation.

  13. CaliforniaResource Assumptions Gates + 697 Tehachapi + 1078 + 100 + 60 Lugo + 646 + 371 Imperial Valley +299 + 1121 Wind Solar PV Solar Thermal Small Hydro Geothermal Biomass RPS

  14. AZ, NV, CA Production cost decreased $413 M (2.4%) Dump energy increased 3 GWh (.9%) Emergency Energy decreased 0% CO2 Emissions decreased 1.1%

  15. Decrease from PC1 Increase from CC

  16. Decrease from CC No change

  17. No change Decrease from CC

  18. No change No change

  19. Results at next SWG meeting

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