1 / 37

AB32 MWG Activities Discussion

In the TAS meeting, the MWG discussed Test ReRuns and the AB32 MWG Meeting agenda from August 19, 2013, covering various updates, test cases, carbon taxes, and generation changes. The discussion included the need for re-running tests, adjustments in hurdle rates, CO2 cost estimates, and sensitivity analyses. The results of different test cases and their impacts on regional transfers and emissions levels were outlined. Suggestions for further analysis on biomass, reserves, and data modeling were also raised.

lester
Download Presentation

AB32 MWG Activities Discussion

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Discussion of:- TAS meeting- MWG Activities- Test ReRuns – AB32 MWG Meeting August 19, 2013

  2. Agenda • WECC Update • Task Force Update • AB32 Testing(Re-runs)

  3. Why need for re-running? • The hurdle rate adder reductions were applied to all imports, rather than just the Northwest imports • Intention was to only reduce the adder for the Northwest imports (copy/paste error) • Took opportunity to modify the AB32 cost assumptions based on new info. • Also added test case using 20% NW import for May – July, 100% other months

  4. AB32 CO2 Test Cases • Use 2022 Common Case • California CO2Cost $30.89/ton (CEC preliminary estimate) • Undesignated Hurdle ($14.81) applied to CA Transmission Interfaces (imports) in addition to base hurdle rates • Update CA export hurdle rate based on CAISO latest estimate (about $7/MWh) • Adjusted CO2 cost applied to San Juan 3 ($15.06/ton) • Sensitivities on NW Unspecified CO2Hurdle rate ($14.81) at 100% ,80%, 60%, 40%, 20% • Potential to derive seasonal /monthly CO2 hurdle rates to reflect BPA high export seasons.

  5. 2022 PC1 Hurdle Rates

  6. AB32 Test Results (revised)

  7. Test Case AB32-20 Northwest Basin Rockies Desert SW Import Tariff Adder +$2.96/MWh Export Tariff $7/MWh California 20% of $14.81 Import Tariff Adder +$14.81/MWh Carbon Tax $30.89/ton Other Carbon Tax IGS 1 = $30.89/ton IGS 2 = $30.89/ton SanJuan 3 = $15.06/ton

  8. Generation Change by location & type

  9. Variable Cost Comparison

  10. Test Case AB32-40 Northwest Basin Rockies Desert SW Import Tariff Adder +$5.92/MWh Export Tariff $7/MWh California 40% of $14.81 Import Tariff Adder +$14.81/MWh Carbon Tax $30.89/ton Other Carbon Tax IGS 1 = $30.89/ton IGS 2 = $30.89/ton SanJuan 3 = $15.06/ton

  11. Generation Change by location & type

  12. Variable Cost Comparison

  13. Test Case AB32-100 Northwest Basin Rockies Desert SW Import Tariff Adder +$14.81/MWh Export Tariff $7/MWh California 100% of $14.81 Import Tariff Adder +$14.81/MWh Carbon Tax $30.89/ton Other Carbon Tax IGS 1 = $30.89/ton IGS 2 = $30.89/ton SanJuan 3 = $15.06/ton

  14. Generation Change by location & type

  15. Variable Cost Comparison

  16. Test Case AB32-100/20 Northwest 20% of NW import cost May - July Basin Rockies Desert SW Import Tariff Adder +$14.81/MWh +$2.96/MWh Export Tariff $7/MWh California Import Tariff Adder +$14.81/MWh 100% and 20% of $14.81 Carbon Tax $30.89/ton Other Carbon Tax IGS 1 = $30.89/ton IGS 2 = $30.89/ton SanJuan 3 = $15.06/ton

  17. Generation Change by location & type

  18. Variable Cost Comparison

  19. AB32-100/20 Load/gen Snapshot for NWUS with Regional Transfers end of July – beginning of August (hurdle rate increases, transfers to CA decrease)

  20. AB32-100/20 Load/gen Snapshot for NWUS with Area LMP end of July – beginning of August (hurdle rate increases, transfers to CA decrease)

  21. Northwest Interchange (8760 hours)

  22. California Import Hurdle Rates Northwest BASIN IGS VC PC1 $13 AB32 $46 AB32-20 $ 9.06 AB32-40 $12.02 AB32-100 $20.91 ALL $20.21 ALL $17.11 SJ3 VC PC1 $17 AB32 $35 AB32-20 $ 8.86 AB32-40 $11.82 AB32-100 $20.71 CA-North AZNMNV CA-South ALL $17.41

  23. AB32 Result Comparison

  24. COI plus PDCI

  25. COI plus PDCI (with split 100/20 run)

  26. Intermountain DC

  27. West of River

  28. Comparison of Regional Transfers

  29. AB32 Test Case Observations/Comments • Overall, CO2 Hurdle costs raise dispatch costs of CA resources and increases Imports • NW CO2 Hurdle impacts NW and SW imports and regional CO2 levels • Inter-mountain Coal units generation reduced significantly in all cases with AB32 modeled • AB32-20 Case: year-around low CO-2 costs across CO/PDCI results in very large increases in NW imports as NW CCGT’s maximized. • AB32-100/20 Case: better reflects seasonality of BPA exports • Overall low impact to CO2 emmissions WECC-wide, but shift between CA vs. Non-CA regions

  30. Other Issues for MWG • 2010 Backcast recommendations • Data modeling • Biomass • Reserves • Other?

  31. Comments and Questions

More Related