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System Operating Orders

Our operating procedures enable the safe, reliable and efficient operation of the power system. We develop operating procedures in consideration of safety standards, industry reliability criteria, equipment capabilities and environmental obligations. We develop operating procedures using simulations of the power system.

Policy and Standards Orders

Number Title Date Issued
SOO 1T-22 Outage Scheduling and Coordination [PDF, 640 KB] 2021 Jun 14


Facility Ratings Orders

Number Title Date Issued

SOO 5T-10
Ratings For All Transmission Circuits 60 kV Or Higher [PDF, 943 KB] 2022 October 16
SOO 5T-14 Ratings for All Transmission and Distribution Transmformers [PDF, 433 KB] 2022 November 08
SOO 7T-22 System Voltage Control [PDF 393 KB] 2022 Mar 3


Composite Network Orders

Number Title Date Issued
SOO 7T-13 G.M. Shrum / Peace Canyon 500 kV System  [PDF, 490 KB] 29 Sep 2022
SOO 7T-13 Att 4 7T-13 Attachment 4 ILM 500 kV System Operation  [PDF, 1.98 MB] 29 Sep 2022
SOO 7T-13 Att 6 7T-13 Attachment 6 ILM 500 kV System Operation [PDF, 650KB] 29 Sep 2022 
SOO 7T-14 Bridge River - Lower Mainland Interconnection [PDF, 520 KB] 2022 Jan 19
SOO 7T-14 Att 1 Bridge River - Lower Mainland Interconnection Generation Shedding Requirements [PDF, 2800 KB] 2022 Jan 19
SOO 7T-17 BC - Alberta Interconnection [PDF, 525 KB] 2020 Nov 20
SOO 7T-18 BC - US Interconnection [PDF, 1080 KB] 2021 Aug 10
SOO 7T-25 Bridge River 1 - Seton - Carquille - 100 Mile House 60 kV Operation [PDF, 340 KB] 2014 Oct 16
SOO 7T-30 North Coast Interconnection [PDF, 3.6 MB] 2022 Nov 22
SOO 7T-33 South Interior Subsystem [PDF, 400 KB] 2022 Apr 27
SOO 7T-34 South Interior Generation Shedding and Outage Requirements [PDF, 400 KB] 2022 Mar 08
SOO 7T-34 Att1 SI 500 kV Operation (2L277 Connected to NLY) [PDF, 3 MB]
2022 Mar 08
SOO 7T-34 Att2 SEL 230 kV / 500 kV Operation (2L277 Connected to NLY) [PDF, 1500 KB] 2022 Mar 08
SOO 7T-35 Peace 138/230/500 kV Network Operation [PDF, 950 KB] 2022 Mar 3
SOO 7T-40 Cheekye-Dunsmuir 500 kV System [PDF, 1360 KB] 24 Jun 2022
SOO 7T-41 Vancouver Island System Operation [PDF, 1.8MB] 22 Apr 2022
SOO 7T-62 Unscheduled Flow (USF) Reduction Procedure [PDF, 65 KB] 2020 Feb 14
SOO 7T-64 Rotational Energy to Support Transfer Limits [PDF, 332 KB] 2021 Mar 01