PSASG Meeting BPA TBL Operation Concerns By Jerry Jackson II

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Presentation transcript:

PSASG Meeting BPA TBL Operation Concerns By Jerry Jackson II

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

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 Sep@100MW) (Snohomish Delta Sep scheme enabled: DeltaSw - TualiPt & DeltaSw - C Mary St. 115kV O/S) Study 226 NI S>N 60F

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 [230.00 - 230.00 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 [115.00 - 115.00 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 [230.00 - 115.00 kV] 1468 1409

226 vs. ALIS NI S>N 60F

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

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

Questions?