Study Team: Puget Sound Area Study Team
Puget Sound Area Study Team Overview
The 2008 System Assessment found deficiencies in the North Downtown Seattle area transmission system. Winter load growth is causing Seattle City Light’s Broad Street-Union, Massachusetts-Union, and Bothell-University 115-kilovolt lines to exceed ratings for several contingencies. There is also a concern about the impact any reinforcements in this area could have on the transfer capability between the Northwest and Canada on the Northern Intertie. ColumbiaGrid has assigned the resolution of this issue to the existing Puget Sound Area Study Team.
The Puget Sound Area Study Team is also looking into the operational impact between several other reliability projects planned in the Puget Sound Area and the capacity of the Northern Intertie.
The PSAST will also be used as the forum to proide the WECC review group for the Northern Intertie Path Rating Increase.
To request access to the BPA Winter Nomogram Operating Cases, please fill out and submit this confidentiality agreement.
To request access to the BPA Winter Nomogram Operating Cases, please fill out and submit this confidentiality agreement.
Documents
12/12/2011 Inductor Sizing TCRM Results (v: 1)
09/28/2011 Series Inductor Data (v: 1)
03/31/2011 PSAST Sensitivity Results (v: 1)
10/06/2010 TCRM Tables (Zipped File 6mb) (v: 1)
08/24/2010 PSAST Traditional Power Flow Files (5.1 MB .zip file) (v: 1)
- Northwest Area Coordinator (WECC basecase submittals)
- > 22HW1
- > 2012 Heavy Summer-12HS4-OP
- > 2012 Light Summer - 12LS1-OP
- > 2017 Heavy Winter - 17HW2
- > 2017 Light Winter - 17LW1-S
- > 2013 Heavy Winter - 13HW2-OP
- > 2013 Light Winter - 13LW2-OP
- > 2013 Heavy Spring - 13HSP1-OP
- > 2016 Light Spring - 16LSP1-S
- > 2018 Heavy Summer - 18HS2
- > Corrections to Approved Cases
- > Miscellaneous
