1. 2013 System Assessment Base Case Options Gordon Comegys January 31, 2013

2. Recent Approved WECC Cases
2018 HS2 - General 5 Year Heavy Summer Planning Case [7/19/12]
Interchanges
COI: 3426
PDCI: 2800 at Celilo
BC>NW: 2300
MT>NW: 1445
Hemingway>Burns: 361 Grassland>Hemingway 590 (NW>ID: 439, definition needs correction)
NW Load: 26427
2023 HS1 - General 10 Year Heavy Summer Planning Case [10/22/12]
COI: 3521
PDCI: 2604 at Celilo
BC>NW: 2299
MT>NW: 830
Hemingway>Burns: 3226Grassland>Hemingway 731 (INW>ID: 881)
NW Load: 28123
2022LSP1B - Corrected 10 year Light Spring Scenario TEPPC Case with High Renewables WECC wide [approved 11/14/12]
HW 2 - General 5 Year Heavy Winter Planning Case [approval soon]

3. Recent Approved WECC Cases (continued)
2022LSP1B - Corrected 10 year Light Spring Scenario TEPPC Case with High Renewables WECC wide [approved 11/14/12]
HW 2 - General 5 Year Heavy Winter Planning Case [approved yesterday, 1/30/13]
COI: 1168
PDCI: Celilo
MT>NW: 1052
NW>BC: 500
Hemingway>Burns: 365 Grassland>Hemingway: 261 ID>NW: 26
NW Load:

4. Options for unavailable WECC cases
10 Year Winter Case Option
Data request to modify 18HW2 5 year case load/gen pattern
Near term light load case options
Data request to modify 2013 LS1 Operating Case to 2015 conditions [13LS1 approved 11/16/12]
Data request to modify LW1 Operating Case to conditions [14LW1 approval schedule 3/20/13]

5. WECC cases later in 2013
2019 HS2 - General 5 Year Heavy Summer Planning Case [approval schedule 7/10/13]
HW2 - General 5 Year Heavy Winter Planning Case [approval schedule 8/14/13]
HW1 - General 10 Year Heavy Winter Planning Case [approval schedule 9/18/13]

6. Firm Commitment Conditions (for discussion)
Light load, high renewables + high hydro + high export
80% of summer and winter peak load + high renewables
Abnormal cold winter loads with 5% probability and low hydro, low renewables condition (deficit NW gen, high import into NW)
Usual peak summer and winter with low renewables

7. Planning Case Project Assumptions
2018 HS2 – Planned Projects in WECC case
Cascade Crossing
Horizon-Trojan 230kV
Blue Lake-Gresham 230kV
I-5 Corridor Reinforcement
Big Eddy-Knight
Raver 500/230kV transformer and Raver-Covington 230
New wind projects (1100 MW wind gen, all off, Longhorn 500/230kV instead of McNary 500/230)
Hemingway-Grassland(Boardman)
Central Ferry-Lower Monumental
Columbia-Larson 230kV
St Clair 230/115
Alderton 230/115
Lakeside 230/115
Denny 115kV phase 1 and series inductors
Delridge-Duwamish 230 reconductor (no transformer)
Beverly Park 230/115kV transformer
SnoPud Granite Falls transmission loop
Starwood transformer removal (bypass, also bypassed in operating case)
Longview Annex retermination
PACW Whetstone 230kV project
Pondersosa 500/230kV (already in Operating Case, too)
Rocky Ford-Dover 115kV
Portal Way 230/115kV #2 (also in Operating Case)

8. Planning Case Project Assumptions
2018 HS2 – Planned Projects MISSING in WECC case
Moscow substation rebuild
Benton-Othello 115kV
Westside substation rebuild
Bronx-Cabinet Rebuild
Lancaster loop-in
Montana-Washington Project (CUP)
Monroe 500kV shunt capacitor
Schultz Series Capacitors
Celilo Upgrade
Paul shunt reactor
St Clair-Woodland 115
Bellingham-Sedro Wooley 115kV reconductor
Bothell-Snoking 230 1&2 reconductor
Mcloughlin-Pearl-Sherwood
Pearl-Sherwood
Salem-Chemawa rebuild
White Bluffs 115kV shunt capacitor
Longview-Lexington conversion to 115
Longview-Lexington-Cardwell conversion to 115
Columbia-Rapids 230 (status shows open)
MATL Project (shows status OPEN)
Wanapum-Pomona 230kV
Wallula-McNary 230kV
Union Gap 230/115kV #3

9. Planning Case Project Assumptions (continued)
2018 HS2 – Planned Projects MISSING in WECC case
Big Eddy 230/115kV #1 replacement
John Day-Big Eddy 500kV #1 reconductor
Olympia-Shelton 230kV #5 upgrade
Alvey 500kV shunt reactor
Franklin 115kV cap additions

10. Questions?