SIERRA power flow areas Greenlee - Copper Multiple low voltage conditions on River 345-kV Line # AZ Phelps-Dodge & 345-kV buses in the Phelps-Dodge 1 power flow zone in Arizona Multiple high voltage conditions on San Juan - Ojo NM ZonePN buses in power flow zones ZoneNO Line #1 and ZonePN in New Mexico Multiple low voltage conditions on KMO - KMO SC BCH ALCAN buses in the B.C. Hydro and ALCAN 287-kV Line # 1 power flow zones in the B.C. Hydro Multiple high voltage conditions on MATLB 240-kV & 240-kV buses in Alberta's AB Phase Shifter Glenwood and Montana's GTFALLS power flow zones Multiple low voltage conditions on S. Creek - AIES-Fort buses in Alberta's power flow zones BCKSP_01 240-kV AB McMurray Edmonton/Fort Sask Annex & Fort Line # 18 McMurray Multiple low voltage conditions on Conklin - buses in Alberta's power flow zones BCKSP_01 240-kV BCH ALCAN Edmonton/Fort Sask Annex & Fort Line # 71 McMurray Multiple high voltage conditions on Glencany 230kV AZ WAPA-DSW buses in Arizona's WAPA-DSW Phase Shifter power flow zones Multiple low voltage conditions on NIC 230 - AJX 230P BCH BC HYDRO buses in B.C. Hydro power flow area 230-kV Line # 1 and zones Multiple high voltage conditions on Frannie - Yellow Tlp PACE WY NO EA buses in PacifiCorp East power flow 230-kV Line # 1 zones Multiple low voltage conditions on Control - Inyo buses in the southern California and CA_South SCE KRAMER Line # 1 Los Angeles Department of Water & Power power flow areas Blackglade - Multiple high voltage conditions on WAPA Shiprock 230-kV ZoneR4 buses in WAPA R.M. power flow R.M. Line # 1 zones There were 23 Category B contingencies which caused singular voltage concerns in the Northwest, Nevada, Arizona, California, Alberta, British Columbia, Colorado and Montana portions of the Western Interconnection. Figure 37 provides a view of all of the concerning bus voltages resulting from the Category B contingencies, including both the buses associated with
SIERRA power flow areas Greenlee - Copper River 345-kV Line # 1 AZ Phelps-Dodge Multiple low voltage conditions on & 345-kV buses in the Phelps-Dodge power flow zone in Arizona San Juan - Ojo Line #1 NM ZonePN Multiple high voltage conditions on buses in power flow zones ZoneNO and ZonePN in New Mexico KMO - KMO SC 287-kV Line # 1 BCH ALCAN Multiple low voltage conditions on buses in the B.C. Hydro and ALCAN power flow zones in the B.C. Hydro MATLB 240-kV Phase Shifter AB Multiple high voltage conditions on & 240-kV buses in Alberta's Glenwood and Montana's GTFALLS power flow zones S. Creek - BCKSP_01 240-kV Line # 18 AB AIES-Fort McMurray Multiple low voltage conditions on buses in Alberta's power flow zones Edmonton/Fort Sask Annex & Fort McMurray Conklin - BCKSP_01 240-kV Line # 71 BCH ALCAN Multiple low voltage conditions on buses in Alberta's power flow zones Edmonton/Fort Sask Annex & Fort McMurray Glencany 230kV Phase Shifter AZ WAPA-DSW Multiple high voltage conditions on buses in Arizona's WAPA-DSW power flow zones NIC 230 - AJX 230P 230-kV Line # 1 BCH BC HYDRO Multiple low voltage conditions on buses in B.C. Hydro power flow area and zones Frannie - Yellow Tlp 230-kV Line # 1 PACE WY NO EA Multiple high voltage conditions on buses in PacifiCorp East power flow zones Control - Inyo Line # 1 CA_South SCE KRAMER Multiple low voltage conditions on buses in the southern California and Los Angeles Department of Water & Power power flow areas Blackglade - Shiprock 230-kV Line # 1 WAPA R.M. ZoneR4 Multiple high voltage conditions on buses in WAPA R.M. power flow zones There were 23 Category B contingencies which caused singular voltage concerns in the Northwest, Nevada, Arizona, California, Alberta, British Columbia, Colorado and Montana portions of the Western Interconnection. Figure 37 provides a view of all of the concerning bus voltages resulting from the Category B contingencies, including both the buses associated with
2022PC1_Common_Case_LSP_Reliability_Assessment_StudyReport_2012SP.docx