1. PDWG Validation of the 2028 ADS PCM V1.0
Jamie Austin
Production Cost Modeling Data Work Group
(PDWG) – Chair
August 21, 2018

2. Overview L&R Progress Report
Continued Validation of the 2028 ADS PCM V1.0
Fixes within CAISO Footprint
Fixes by NTTG
DS approval of PDWG proposed edits
Review of Proposed Agenda for next in-person meeting, scheduled for August 28-29

3. L&R Progress Report
Tyler Butikofer

4. Loads and Resource Balance by Energy

5. Thermal Generation Balance

6. Thermal Generation Balance – cont.
Western Electricity Coordinating Council

7. Renewable and Other Generation Balance

8. Renewable and Other Generation Balance
Western Electricity Coordinating Council

9. Fixes within CAISO Footprint
Yi Zhang, California ISO

10. CISC area
Two Peaker units that were originally parked should be modeled as units in service
Grapeland Peaker at 29305
CTRPKGEN_29308 at 29308
Remove the previously modeled BC_25187_1C and BS_25188_1E units

11. Hyatt and Thermalito hydro units
Remove three pumped storage units at Hyatt
EdwardCHyatt2, EdwardCHyatt4, and EdwardCHyatt6
Change Thermalito_2, Thermalito_3, Thermalito_4 from Pumped Storage to Hydro, with Load Following flag checked

12. NW topology (per BPA’s comments)
Klamath Falls area
Remove Capt. Jack – Klamath Falls 500 kV, and keep Capt. Jack-Snow Goose – Klamath Falls 500 kV
Remove Malin – Klamath Falls 230 kV, and keep Malin – Snow Goose – Klamath Falls 230 kV
Meridian – Sam’s Valley – Dixonville 500 kV line impedances are wrong
Buckley – Slatt series capacitor is missing

13. Use Kevin proposed changes for Antelope Nuke, but set the Min Up/Down time to 168 hours (previously they were 1 hour)
Use Kevin proposed changes for Antelope Nuke, but set the Min Up/Down time to 168 hours and NOT MUST RUN

14. Continued Validation of the 2028 ADS PCM V1.0
Jamie Austin

15. Fixes by NTTG Change # NTTG Change Comment 1 Placed B2H in-service.
Consistent with the NTTG Transmission Plan 2
Adjusted NTTG Branch Data where appropriate, to reflect the correct Ratings.
Applied edits submitted by TPs 3
Updated Solar and Wind Resources to Match NTTG data submittals in Q1, This included adding associated transmission and transformers to integrate missing resources. A number of small solar project (13) and wind Projects (6) were missing. 4
Deleted double entry of Wyoming wind associated with Energy Vision 2020 additions (e.g. generators assigned names WYWINDXX vs. Energy VisionXX).
Inadvertent double entry 5
Jim Bridger Coal - changed the heat rate to be the same for all 4 - units
Two of the units were dispatching at 50% below the other two. 6
Retired Dave Johnston coal plant, all 4-units
Consisted with March 2018 L&R data submittal in Q1. 7
Retired North Valmy units - 1 & 2
Consisted with March 2018 L&R data submittal in Q1 and published retirement dates prior to 2026. 8
Retired assumed Naughton #3 Gas 9
Random edits to connect AZ and CFE disconnected units
To allow units to be dispatched in PCM, no dispatch changes 10
Revised Antelope Nuclear Dispatch Assumptions:
Must Run
Outage Duration: 135 (8760*3.09%/2)5.6 days
Modeled 298 hours (1 event = 3.4%)
Set Heat Rate to 10% dispatch range
Approved by PDWG, July, 2018 11
Following edits were made to counter negative pricing (-$25) applied to California wind and solar that is caused hydro to cycle for solar and wind outside of California:
Changed default setting to NO-Spill on NTTG hydro plants.
Changed dispatch cost for Core Columbia River/Lower Snake projects to -$70
Added negative $50 dollars (-$50) to hydro dispatch cost on hydro outside of California
Hydro Dispatch Option:
Region Load – Wind – Solar 12
NW Tier 1 Energy:
Changed BPA area Coefficient in nomogram to so modeled Tier 1 energy matches target 13
Discounted Coal prices for all coal plants in WECC by 50%, to account for the fixed contract element.
Significant share of coal cost are fixed
Coal contracts are take or pay, e.g., contracted cost supports a 40% to 70%, Capacity Factor; this means modeled coal cost should be net burner-tip price.

16. Summary of PDWG Approved Edits
Approval Item #
Proposed Fixes
PDWG Discussion
Approved by PDWG 1
Pancake Wheeling on PDCI – fix ownership on bus 26097, Sylmar to SCE or BPA
July 17, 2018 2
Mismatch Wind/Solar Shapes - Align appropriate dispatch shape for all mismatch commit and dispatch shapes:
Beacon Solar Area 3
Propose WECC update nuclear units to:
Must Run
Outage Duration: 135 (8760*3.09%/2) 5.6 days
Modeled 298 hours (1 event:= 3.40%)
Propose WECC update Antelope to:
w/10% dispatch range
July 17, 24,
August 8, 2018 4
NW Tier 1 Energy - change BPA area Coefficient in nomogram to so modeled Tier 1 energy matches target
July 24, 2018
July 31, 20185 5
Spilled Hydro Proposed Change:
Set Hydro dispatch from load to Load-Wind-Solar with Wind at 0% and Solar at 50%?
Review Hydro set to ‘Hourly Shape’ and make recommendations to change to ‘Load Following’:
Yale, Swift 1, Merwin, J.F.Carr, Spring Creek, Keswick, Folsom,.. 6
Fuel Prices – Discounting coal prices for all coal plants by discounting burner tip full prices by 50%; essentially just retaining the fixed elements of the contract. 7
Modeling Hydro Data issue – modify monthly coefficients to original values