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Study Results Northwest Firmed Resource Option

Study Results Northwest Firmed Resource Option.

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Study Results Northwest Firmed Resource Option

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  1. Study ResultsNorthwest Firmed Resource Option This slide deck contains results from the 2012 TEPPC Study Program related to the Northwest Firmed Resource Option Studies. The generation results for the associated transmission expansion projects follow immediately along with flow information for the added transmission.

  2. Hydro Firming Modeling Goal • Compare different hydro dispatches in different wind conditions given various modeling techniques • Compare path flows and production costs • Implementation Steps • Start with 2022 PC23 NW Resource Option (+12,000 GWh) • Increase WECC annual energy demand 8% • Add 12,000 GWh of renewables to NW • Under the purview of high wind in a particular region, investigate how a nearby region’s hydro responds based on different types of modeling • Investigate how the changes listed above impact path flows

  3. Renewable Options Under High Load • Firmed Cases Increase WECC-wide load 8% 1 Hydro Add: 12,000 GWh to meet WECC RPS Gas 2 3 Add: firming resource 4 Pumped storage 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. 10-Year Study ResultsEC27a – NW Firming Study AEC27b – NW Firming Study B Hydro

  7. NW Firmed Resource Cases • Comparing Four Cases PC1-5 High Load PC23 NW Resource Option PC27a NW Firmed Resource PC27b NW Firmed Resource Shrum Shrum Shrum Shrum Mica Mica Mica Mica Revelstoke Revelstoke Revelstoke Revelstoke +12,000 GWh (mostly wind) +12,000 GWh (mostly wind) +12,000 GWh (mostly wind) +12,000 GWh resources No added resources +12,000 GWh resources +12,000 GWh resources Standard HTC modeling Standard HTC modeling Fixed shape hydro from PC1-5 (no resources) HTC modeling with price signals from a windy Northwest Compare Results Generation Hydro impact Path Flows Compare Compare

  8. AZ, OR, CA, WA Production cost decreased $27 M (.15%) Dump energy increased 397 GWh (93%) Emergency Energy decreased 6% CO2 Emissions decreased 0%

  9. AL, BC Production cost decreased $6 M (.032%) Dump energy increased 80 GWh (19%) Emergency Energy decreased 0% CO2 Emissions decreased 0%

  10. PC23 vs. PC27b Normal hydro NW $ Hydro

  11. Production cost decreased $22 M (.125%) Dump energy increased 478 GWh (1649%) Emergency Energy decreased 6% CO2 Emissions decreased 0%

  12. PC27a vs. PC27b Fixed hydro NW $ hydro

  13. Energy moved

  14. S-N Less S-N flow Congestion

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  17. 2-weeks in April 2-weeks in October

  18. Questions or thoughts on this study?

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