1. PSASG Meeting BPA TBL Operation Concerns By Jerry Jackson II

2. Concerns 1.) Multiple Outage congestion 2.) Upcoming Outages
3.) PSA solutions

3. NI S>N 60F anticipated outage combination for 9/11/2007 Study 226
Tacoma - Raver #1&2 500kV, Monroe-Custer #1 500kV, Sedro - Bothell - Horse Ranch 230kV, Tacoma - Cowlitz #2 230kV, Snohomish 230/115kV Bank#3 & March Point 230/115kV Bank #3 O/S (S>N (Snohomish Delta Sep scheme enabled: DeltaSw - TualiPt & DeltaSw - C Mary St. 115kV O/S)
Study 226
NI S>N 60F

4. Contingencies Average Puget Sound Net Area Load = 4675 Gen Level Trans
Average Puget Sound Net Area Load =
4675
Gen Level
Trans
Worst
Limiting
PSE
SCL/
Limit
Contingency
Facility
SNOH
100
140
-141
BFR: 4494 Cust-Mon #2 500kV & Cust 500/230kV Bk#1
Branch MURRAY (40767) TO SNOH S1 (41327) CKT 1 [ kV]
460
-143
775
-149
BFR: 4496 Cust-Mon #2 & Cust 500/230kV Bk#2
260 21 20 13
525
896
BFR: Snohomish 230kV Bus Sect #1
Branch BUNKFOSS (45613) TO SNOH S1 (40984) CKT 1 [ kV]
852
799
N-1: Snohomish - Murray #1 230kV
1000
1556
1512
1463
1200
1529
N-2: Murr - Cust #1 & Belling - Cust #1 230kV
Branch CUSTER W (40321) TO PORTALWY (42001) CKT 1 [ kV]
1468
1409

5. 226 vs. ALIS
NI S>N 60F

6. Major upcoming outages
Sedro-Bothell-Horse Ranch 230kV
Chief Joseph – Monroe 500kV
Bothell – SnoKing #1 230kV
Rocky Reach – Maple Valley 230kV
Monroe 500/230kV Bank #1
Grand Coulee – Schultz #1 500kV
Schultz – Raver & Schultz – Echo Lake 500kV

7. To think about…. Multiple facilities in same area
Does the facility have major impacts
Ways of implementing mitigation plans
Responsibility of mitigation plan?
Operation vs. planning arena
Agreeing on feasible solutions

8. Questions?