Alberta Electric System Operator
System Co-ordination Plan
2024-04-04 to 2024-04-12
Approved Outages

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From To Owner Type Element Scheduled Activity Date/Time Comments Interconnection
05-Oct-18 08:00 31-Dec-24 16:00 EPCOR IO C2 (Rossdale) forced outage 2,279.38 Days
Continuous		  
24-Oct-18 01:13 31-Dec-24 16:00 EPCOR IO C1 (Rossdale) forced outage 2,260.66 Days
Continuous		  
04-Sep-22 16:50 30-Sep-24 18:00 ATCO Outage 848s 401R (848s Ruth Lake) forced outage 757.05 Days
Continuous		  
15-Mar-23 18:01 30-Apr-24 18:00 SUNCOR Outage 29EDD-71 752-4651 (29EDD-71) breaker will remain offline for undetermined period of time 412 Days
Continuous		  
31-Jul-23 14:56 27-Sep-24 16:00 ENMAX Outage 38B138-38.1CAP (SS-38), 38.1C (SS-38) motor run time fail 424.04 Days
Continuous		  
10-Nov-23 17:00 09-Apr-24 17:00 EPCOR Outage T2 (Rossdale) TX2 LCR, civil demo and construction 150.96 Days
Continuous		  
27-Nov-23 08:00 07-Mar-25 16:00 ENMAX Outage 32.2TR (SS-32) 32 sub 32.2TR 8 kV bus switchgear demolition 466.33 Days
Continuous		  
08-Jan-24 07:00 30-Apr-24 17:00 EPCOR Outage T2 (Rossdale), R721 (Rossdale), R723 (Rossdale), RAB2 (Rossdale) rossdale transformer assembly and scaffold build 113.38 Days
Continuous		  
15-Jan-24 07:00 20-Apr-24 17:00 EPCOR Outage 113s T2 (113s Inland Cement) emergency iInvestigation 96.38 Days
Continuous		  
19-Feb-24 10:00 17-Jun-24 17:00 ATCO TE 863s RTU/SCADA (863s Paintearth) modifications to existing RTU and new SCADA equipment 119.25 Days
Continuous		  
19-Feb-24 11:00 10-Jun-24 17:30 ATCO TE 863S 240kV Breaker Relays, 863S 25kV Breaker Relays disable all breaker fail protection for the duration of the project 112.23 Days
Continuous		  
19-Feb-24 11:00 06-Jun-24 17:30 ATCO TE 863S 240kV Bus Relays install new 900BS1 protection panel 108.23 Days
Continuous		  
26-Feb-24 07:00 10-May-24 17:00 EPCOR TE EP 803s Protection & Control (EP 803s Lambton) protection blocking for annual relay maintenance 74.38 Days
Continuous		  
04-Mar-24 08:00 22-Apr-24 08:00 ALTALINK Outage 746s T1 (746s Sherwood Park) replace T1 and NGR, cutover protection and controls of all devices in GOI zone to new control building 48.96 Days
Continuous		  
04-Mar-24 08:00 30-Apr-24 16:00 ALTALINK TE 746s RTU/SCADA (746s Sherwood Park) configuration updates for A-B/87/T1, L1, L8, L2 feeder protection and cutovers of controls for 746s3, s5, s34N, s40,s173W, s474X 57.29 Days
Daily		  
06-Mar-24 07:00 04-Apr-24 17:00 EPCOR Outage 330p 500kV Bus 1 (330p Genesee), 330p 1201 (330p Genesee), 330p 1204 (330p Genesee), 330p 1207 (330p Genesee), 330p 1214 (330p Genesee), 330p 1210 (330p Genesee), 330p 12TC1D (330p Genesee), TLO1 (330p Genesee) string 500KV BB1 and tie in new 500KV Bus 1 29.38 Days
Continuous		  
07-Mar-24 06:30 29-Aug-24 16:00 ALTALINK Outage 477s T1 (477s Amoco West Pembina) disconnect T1 and VR1 permanently, draining oil, release 477s T1, VR1, & 4.16kV equipment for salvage and RSLD2 then RSLD3 to be implemented at end of outage 175.35 Days
Continuous		  
11-Mar-24 07:00 30-Apr-24 17:00 EPCOR TE 665s Protection & Control (665s Dome) protection blocking for annual relay maintenance 50.42 Days
Continuous		  
11-Mar-24 08:00 05-Apr-24 17:00 ATCO TE 2075s Protection & Control (2075s Newell) PRC-005 microprocessor and auxiliary protection relay testing
 25.38 Days
Continuous		  
11-Mar-24 08:00 08-Apr-24 16:00 ENMAX Outage 5.1TR (SS-5) transformer protection upgrade 28.33 Days
Continuous		  
18-Mar-24 09:00 12-Apr-24 17:00 BCH Outage 2L112 (BPA Boundary - BCH Nelway), T2 (BCH Natal) repair NLY T2 oil leak BC maintenance does not affect the Alberta ATC, BPA replace structures 25.33 Days
Continuous		 AB-BC
18-Mar-24 09:00 07-Apr-24 17:00 ATCO TE 728s RTU/SCADA (728s Mercer Hill) 728S Mercer Hill scada upgrade 20.33 Days
Continuous		  
18-Mar-24 10:00 05-Apr-24 17:30 ATCO TE 834s Protection & Control (834s Wesley Creek) relay testing on.
SEL 2506/2G, 904BF, 900BS2, 900BS1, 903BF, 9L11, 9L15, 7L08		 18.31 Days
Continuous		  
18-Mar-24 14:30 29-Apr-24 14:00 ATCO Outage 863s 902T (863s Paintearth) protection upgrade, commission new wiring/trransformer protection, and new transformer protection panel 41.98 Days
Continuous		  
22-Mar-24 12:22 04-Apr-24 17:00 ALTALINK Outage 310p 1852 (310p Sundance) emergency repair 13.19 Days
Continuous		  
25-Mar-24 07:00 12-Apr-24 17:00 EPCOR Outage 987s T2 (987s Clover Bar), 987s T4 (987s Clover Bar), 987s C2406 (987s Clover Bar), 987s C2405 (987s Clover Bar), 987s C2408 (987s Clover Bar), 987s CDS31 (987s Clover Bar), 987s CC721 (987s Clover Bar) T2 and T4 bay outage for final tie in of 1191L bay 18.42 Days
Continuous		  
26-Mar-24 12:00 04-Apr-24 16:00 ALTALINK Outage 859L (20s Ghost - AML 793s Horse Creek), 20s 859E (20s Ghost), AML 793s 859W (AML 793s Horse Creek) upgrade 859L line protections at 793s and test tpr circuits 9.17 Days
Continuous		  
26-Mar-24 12:00 04-Apr-24 16:00 ALTALINK TE 20s RTU/SCADA (20s Ghost) update SCADA configuration for line protection work on 859L 9.17 Days
Continuous		  
26-Mar-24 12:00 04-Apr-24 16:00 ALTALINK TE AML 793s RTU/SCADA (AML 793s Horse Creek) update SCADA configuration for line protection work on 859L 9.17 Days
Continuous		  
31-Mar-24 08:00 05-Apr-24 15:00 ENMAX Outage 3GSU-XF-001 (SS-25) electrical testing 5.29 Days
Continuous		  
01-Apr-24 00:00 01-May-24 00:00 SUNCOR Outage 29EDD-71 29PT-235 (29EDD-71), 29EDD-71 752-4642 (29EDD-71), 29EDD-71 752-4641 (29EDD-71) FB-maintenance and testing 30 Days
Continuous		  
01-Apr-24 07:00 04-Apr-24 18:00 ENMAX Outage 12.2TR (SS-12) grounding deficiency improvements 3.46 Days
Continuous		  
01-Apr-24 08:00 05-Apr-24 17:00 ALTALINK TE 5s RTU/SCADA (5s East Calgary) SCADA upgrade 4.38 Days
Daily		  
01-Apr-24 08:00 12-Apr-24 17:00 ALTALINK TE 321s RTU/SCADA (321s Al Rothbauer) updating RTU configuration 11.38 Days
Daily		  
01-Apr-24 08:00 10-May-24 17:00 ALTALINK TE 244s RTU/SCADA (244s Bowmanton) updating RTU configuration 39.38 Days
Daily		  
01-Apr-24 08:00 19-Apr-24 16:00 ENMAX Outage 8.5TR (SS-8), 8.6TR (SS-8), 8B138-2A0 (SS-8), 8B138-3A0 (SS-8), 2A10 (SS-8), 3A1 (SS-8) 8 sub prot repl - Z32 18.33 Days
Continuous		  
01-Apr-24 08:00 06-Apr-24 17:00 ALTALINK TE 535s RTU/SCADA (535s Joffre) download new configurations, migrating and commissioning of T4 SCADA 5.38 Days
Continuous		  
02-Apr-24 07:00 11-Apr-24 18:00 ALTALINK Outage 925L (63s Red Deer - 74s Janet) component replacement between structures 9.46 Days
Continuous		  
02-Apr-24 07:00 04-Apr-24 17:00 ALTALINK, EPCOR Outage 1058L (657s Summerside - EP 803s Lambton), EP 803s L2403 (EP 803s Lambton), EP 803s L2404 (EP 803s Lambton), 657s SU2403 (657s Summerside), 657s SU2404 (657s Summerside), 657s SUDS10 (657s Summerside) P&C maintenance 2.42 Days
Continuous		  
02-Apr-24 07:00 07-May-24 17:00 EPCOR Outage T1 (Garneau), GT1 (Garneau) Garneau S/S Tx1 bay outage 35.42 Days
Continuous		  
02-Apr-24 07:15 08-Apr-24 17:45 ALTALINK, ATCO Outage 702L (137s Sedgewick - 757s Battle River), 757s 708 (757s Battle River) component replacement (Str 11-197) 6.44 Days
Continuous		  
02-Apr-24 07:15 08-Apr-24 17:45 ATCO IO 7L702 (137s Sedgewick - 757s Battle River) AltaLink request, structure maintenance/replacement on 702L 6.44 Days
Continuous		  
02-Apr-24 07:30 11-Apr-24 17:30 ALTALINK RB 1082L (63s Red Deer - 287s Hazelwood) crews working within close proximity on 925L 9.42 Days
Daily		  
02-Apr-24 07:30 11-Apr-24 17:30 ALTALINK RB 929L (74S Janet - 287s Hazelwood) crews working within close proximity on 925L 9.42 Days
Daily		  
02-Apr-24 07:30 11-Apr-24 17:30 ALTALINK RB 901AL (64s East Crossfield - 901L tap), 901L (63s Red Deer - 901AL tap), 901L (74s Janet - 901AL tap) working within close proximity on 925L 9.42 Days
Daily		  
02-Apr-24 08:00 04-Apr-24 18:00 ENMAX Outage 65.1TR (SS-65), 65B138-D83 (SS-65), 65B138-D81 (SS-65), 65B240-D130 (SS-65), 65B240-D133 (SS-65), 65MD240-65.1TR (SS-65), 65MD138-65.1TR (SS-65) maintenance and oil sampling 2.42 Days
Continuous		  
02-Apr-24 08:00 12-Apr-24 08:00 ATCO, CNRL, ALBIAN Outage 847s 902T (847s Muskeg River), 919s 908 (919s Hartley) maintenance 10 Days
Continuous		  
02-Apr-24 08:00 24-Apr-24 16:00 SUNCOR Outage 29PL6-5 (29EDD-1 Millennium - 29EDD-2 Tar Island), 29EDD-1 29EDD1s1652 (29EDD-1 Millennium), 29EDD-1 29EDD1s1752 (29EDD-1 Millennium), 29EDD-1 29PS-196 (29EDD-1 Millennium), 29PS-44 (29EDD-22) maintenance and relay upgrades 22.33 Days
Continuous		  
02-Apr-24 08:00 10-Apr-24 16:00 ENMAX Outage 2.82L (SS-2 - SS-5), 5B138-2.82 (SS-5), 2MD138-2.82 (SS-2) facilitate the duct break in for new tie in 8.33 Days
Continuous		  
02-Apr-24 09:00 08-Apr-24 16:00 ATCO IO 710s Vermilion training - hands on operation of spare NO system switches 6.29 Days
Continuous		  
02-Apr-24 09:00 04-Apr-24 16:00 ATCO TE 826s Protection & Control (826s Marguerite Lake) temporary isolation of transformer Non-electrical when bleeding air in piping to dissolved gas unit 2.29 Days
Continuous		  
02-Apr-24 12:30 11-Apr-24 16:00 ALTALINK Outage 158s T2 (158s Vauxhall) 158sT2 oil reclaim or leak repair 9.15 Days
Continuous		  
02-Apr-24 12:30 04-Apr-24 17:30 ALTALINK Outage 74s C1 (74s Janet), 74s C2 (74s Janet) 74sC2 JB4 replacement 2.21 Days
Continuous		  
02-Apr-24 17:00 04-Apr-24 18:00 ALTALINK Outage 221s T2 (221s Sunken Lake) tapchanger filter install, metering replacement 2.04 Days
Continuous		  
03-Apr-24 08:00 13-Apr-24 16:00 Syncrude Outage TL-2 (Aurora - Aurora) TL-2 will be isolated to support project tie 10.33 Days
Continuous		  
04-Apr-24 07:00 04-Apr-24 17:00 ENMAX RB 24.81L (SS-24 - SS-31) spring transmission line washing 10 Hours
Continuous		  
04-Apr-24 08:00 05-Apr-24 12:00 ALTALINK TE 244s Protection & Control (244s Bowmanton) updates for the Dunmore project 28 Hours
Daily		  
04-Apr-24 08:00 05-Apr-24 12:00 ALTALINK TE 321s Protection & Control (321s Al Rothbauer) updates for the Dunmore project 28 Hours
Daily		  
04-Apr-24 08:00 05-Apr-24 17:00 ALTALINK Outage 161L (255s Vulcan - 504s Queenstown), 504s 161 (504s Queenstown), 255s 161 (255s Vulcan) replace damper on structure 239. hardware tighten structure 350. 1.38 Days
Continuous		  
04-Apr-24 08:00 05-Apr-24 17:00 ALTALINK RB 876L (179s Gleichen - 253s Blackie) repair conductor damage at structure 161L124 (876L54). 1.38 Days
Daily		  
04-Apr-24 08:00 04-Apr-24 17:00 SUNCOR TE Suncor RTU/SCADA (Suncor) update RTU program at 29EDD-4 9 Hours
Continuous		  
04-Apr-24 08:00 10-Apr-24 16:00 Syncrude Outage UT2 (Aurora) complete maintenance on the 15kV switchgear fed from UT-2 6.33 Days
Continuous		  
04-Apr-24 08:00 04-Apr-24 16:00 ENMAX Outage 38B138-38.83 (SS-38), 38.83L (SS-38 - SS-39), 39B138-38.83 (SS-39) power factor test 39B138-38.83 CT 8 Hours
Continuous		  
04-Apr-24 08:00 04-Apr-24 16:00 REDDEER Outage 194s T1 (194s South Red Deer), 194s T2 (194s South Red Deer) low voltage AC/DC panel replacement 8 Hours
Continuous		  
04-Apr-24 08:00 04-Apr-24 17:00 ALTALINK, ENMAXEC TE 383s RTU/SCADA (383s Kettles Hill Windfarm) complete a raw socket conversion on 7705A and a LAN switch upgrade 9 Hours
Daily		  
04-Apr-24 08:00 04-Apr-24 17:00 ALTALINK TE 12s Protection & Control (12s Heartland) factory reset on the 12L85 A87/L1 relay 9 Hours
Daily		  
04-Apr-24 08:00 04-Apr-24 17:30 ATCO TE 2029s Protection & Control (2029s Heathfield) end-to-end relay testing with AltaLink on 12L85 protection PRC-005 9.5 Hours
Continuous		  
04-Apr-24 08:00 04-Apr-24 17:00 ALTALINK Outage 256s T2 (256s Harmattan) urgent 256s3 like for like replacement and cable re- attachment. 9 Hours
Daily		  
04-Apr-24 08:00 04-Apr-24 10:00 Lethbridge TE APS# 169 725LW-674S Overload Mitigation add time delay function to DNP (RS485) alarm for channel fail 2 Hours
Continuous		  
04-Apr-24 08:30 04-Apr-24 12:30 ALTALINK Outage 103s 1552 (103s Goose Lake) 1st trip test only 4 Hours
Daily		  
04-Apr-24 09:00 04-Apr-24 10:00 ENMAX Outage 15.62L (SS-15 - SS-16) spring transmission line washing 60 Mins
Continuous		  
04-Apr-24 09:00 04-Apr-24 16:45 ALTALINK Outage 64s T2 (64s East Crossfield), 64s 240kV Bus (64s East Crossfield), 901AL (64s East Crossfield - 901L tap), 64s 901 (64s East Crossfield) urgent hot spot repair as deemed would be a failure point during April 13th 611L GOI 7.75 Hours
Daily		  
04-Apr-24 10:00 04-Apr-24 17:00 ATCO TE ATCO Telecom Equipment, 754s RTU/SCADA (754s Ksituan River) outage to IP network access traffic 7 Hours
Continuous		  
04-Apr-24 10:01 04-Apr-24 11:00 ENMAX Outage 16.60L (SS-16 - SS-34) spring transmission line washing 59 Mins
Continuous		  
04-Apr-24 12:31 04-Apr-24 16:30 ALTALINK Outage 103s 1652 (103s Goose Lake) 1st trip test only 3.98 Hours
Continuous		  
05-Apr-24 08:00 07-Apr-24 16:00 ENMAX Outage 13.82L (SS-13 - SS-22), 13B138-13.82 (SS-13), 22B138-13.82 (SS-22) line clearance mitigation 2.33 Days
Continuous		  
05-Apr-24 08:00 06-Apr-24 16:00 ENMAX, ALTALINK Outage 1109L (SS-25 - SS-65), 25B240-D141 (SS-25), 25B240-D142 (SS-25), 65B240-D135 (SS-65), 65B240-D134 (SS-65), 25MD240-1109 (SS-25), 65MD240-1109 (SS-65) switch maintenance, power factor test, washing. replace harp 1.33 Days
Continuous		  
05-Apr-24 08:00 06-Apr-24 16:00 ENMAX, ALTALINK IO 1109L (SS-25 - SS-65) switch maintenance, power factor test 1.33 Days
Continuous		  
05-Apr-24 08:00 05-Apr-24 16:00 ALTALINK TE 103s Protection & Control (103s Goose Lake) finish implement fault reporting; 616L B21/79/L10 8 Hours
Daily		  
05-Apr-24 08:00 05-Apr-24 16:00 ALTALINK TE 103s RTU/SCADA (103s Goose Lake) finish implement fault reporting 8 Hours
Daily		  
05-Apr-24 08:00 11-Apr-24 15:00 ENMAX Outage 2GSU-XF-001 (SS-25) electrical testing 6.29 Days
Continuous		  
05-Apr-24 08:00 05-Apr-24 17:00 SUNCOR TE 29EDD-1 RTU/SCADA (29EDD-1 Millennium) line protection upgrades 9 Hours
Continuous		  
06-Apr-24 07:00 07-Apr-24 18:00 ALTALINK Outage 792L (92s Viscount - 191s N.W. Cardiff), 92s 792 (92s Viscount), 191s 792X (191s N.W. Cardiff) complete replacement of 792L structure 184. 1.46 Days
Continuous		  
06-Apr-24 07:00 07-Apr-24 13:00 EPCOR Outage 330p 12GT6D (330p Genesee) Genesee G6 Outage to coincide with CPC outage 30 Hours
Continuous		  
06-Apr-24 08:00 06-Apr-24 17:00 SUNCOR TE 29EDD-22 RTU/SCADA (29EDD-22) BP - updates to 29EDD-22 for line protection upgrades 29PL6-5, transformer protection upgrade
 9 Hours
Continuous		  
07-Apr-24 08:00 08-Apr-24 16:00 ENMAX, ALTALINK Outage 1080L (SS-25 - SS-65), 25B240-D139 (SS-25), 25B240-D138 (SS-25), 65B240-D132 (SS-65), 65B240-D131 (SS-65) HV SW maintenance and power factor tests 1.33 Days
Continuous		  
07-Apr-24 08:00 08-Apr-24 16:00 ENMAX, ALTALINK IO 1080L (SS-25 - SS-65) HV SW Maint. MD-1080, SW147, SW146. Power Factor Test - 25PT240-1080 1.33 Days
Continuous		  
07-Apr-24 08:00 07-Apr-24 18:00 ENMAX Outage 9.3TR (SS-9), 2.81L (SS-2 - SS-9), 9.83L (SS-9 - SS-43), 9.2TR (SS-9), 9B138-2.81 (SS-9), 9B138-9.83 (SS-9) spring substation washing, HV SW maintenanc and ooil sample 9.2TR bushing 10 Hours
Continuous		  
07-Apr-24 09:00 12-Apr-24 17:00 ATCO Outage 757s 705T (757s Battle River) ATCO to switch open 757S 705A and 757S 705X so to enable Heartland to open disconnect 757S 705 5.33 Days
Continuous		  
07-Apr-24 10:30 12-Apr-24 17:30 ALTALINK Outage 64s 452 (64s East Crossfield), 752L (64s East Crossfield - 752AL tap) Protection upgrade to replace 752L A21/L2, 752L B21/L2 5.29 Days
Continuous		  
07-Apr-24 11:00 12-Apr-24 17:00 ALTALINK TE 64s RTU/SCADA (64s East Crossfield) facilitate protection upgrade on 752L 5.25 Days
Daily		  
08-Apr-24 07:00 09-Apr-24 17:30 ALTALINK TE 510s Protection & Control (510s Sunnybrook) implement jumper to accommodate duplication of trip from 4052 to 330p end of 430L 1.44 Days
Daily		  
08-Apr-24 07:00 12-Apr-24 17:00 EPCOR Outage 665s T3 (665s Dome), 665s D721 (665s Dome), 665s D2404 (665s Dome), S721 (Strathcona), 72DS26 (665s Dome - Strathcona) P&C maintenance 4.42 Days
Continuous		  
08-Apr-24 07:00 12-Apr-24 17:00 EPCOR Outage 330P SST1 (330P Genesee) Genesee Re-string Capital Power SST1 138KV over head lines. Move from temporary bypass lines to permanent structures 4.42 Days
Continuous		  
08-Apr-24 07:00 12-Apr-24 17:00 EPCOR Outage 330P SST3 (330P Genesee) Genesee Re-string Capital Power SST3 138KV lines. Move from temporary bypass to permanent structures 4.42 Days
Continuous		  
08-Apr-24 07:00 11-Apr-24 18:00 ENMAX Outage 41.1TR (SS-41) grounding deficiency improvements 3.46 Days
Continuous		  
08-Apr-24 07:00 10-Apr-24 17:00 ALTALINK TE 37s RTU/SCADA (37s North Calder) add bird laser alarm to SCADA system 2.42 Days
Daily		  
08-Apr-24 07:30 12-Apr-24 18:00 ALTALINK Outage 535s T4 (535s Joffre) migration and commissioning of T4 components 4.44 Days
Continuous		  
08-Apr-24 08:00 28-Apr-24 18:00 ENMAX Outage 1.82L (SS-1 - SS-5), 5.1TR (SS-5), 5.6TR (SS-5), 5.8TR (SS-5), 5B138-5BT12 (SS-5), 5B138-5BT7 (SS-5), 5MD138-5.6TR (SS-5), 5MD138-5.8TR (SS-5), 5B138-1.82 (SS-5) switches maintenance and substation washing 20.42 Days
Continuous		  
08-Apr-24 08:00 12-Apr-24 17:00 ATCO Outage 2075s ACF11 (2075s Newell), 2075s 901T (2075s Newell), 2075S 927 (2075s Newell) replace failed SVC1 Vesda and complete required commissioning 4.38 Days
Continuous		  
08-Apr-24 08:00 10-May-24 17:00 ALTALINK TE 523s RTU/SCADA (523s Bullshead) updating RTU configuration for the Dunmore project 32.38 Days
Daily		  
08-Apr-24 08:00 12-Apr-24 17:00 ALTALINK TE 535s RTU/SCADA (535s Joffre) download new configurations and make LAN modifications 4.38 Days
Continuous		  
08-Apr-24 08:00 11-Apr-24 16:00 ENMAX TE Protection & Control (SS-25) 25s 240 kV bus differential Z44A and Z44B, 25sub Shepard RAS-A and RAS-B protection outage. relay protection test - 25RLY240-25.Z44 A, 25RLY240-25.Z44 B 3.33 Days
Continuous		  
08-Apr-24 08:00 08-Apr-24 16:00 ENMAX Outage 33.83L (SS-33 - SS-41), 41B138-33.83 (SS-41), 33B138-33.83 (SS-33) power factor test 41B138-33.83 8 Hours
Continuous		  
08-Apr-24 08:00 15-Apr-24 14:15 ATCO TE ATCO RTU/SCADA 6500s RTU - update VT SCADA and RTAC configurations 7.26 Days
Continuous		  
08-Apr-24 08:00 15-Apr-24 13:52 ATCO TE ATCO RTU/SCADA 6501s RTU - update VT SCADA and RTAC configurations 7.24 Days
Continuous		  
08-Apr-24 08:00 18-Apr-24 16:00 ALTALINK TE AltaLink Telecom Equipment DWDM node addition upgrades - 2023 CR&U at 17s Benalto 10.33 Days
Continuous		  
08-Apr-24 09:00 09-Apr-24 17:30 ALTALINK TE 297s Protection & Control (297s Rimbey) update RTU for comm failure timer and commission 1.35 Days
Daily		  
08-Apr-24 09:00 26-Apr-24 17:00 ATCO TE 728s Protection & Control (728s Mercer Hill), 728s RTU/SCADA (728s Mercer Hill) protection and RTU updates 18.33 Days
Continuous		  
08-Apr-24 09:00 08-Apr-24 16:00 ATCO TE 764s Protection & Control (764s Heisler) relay work - 50N/602T at 764s 7 Hours
Continuous		  
08-Apr-24 10:00 19-Apr-24 16:00 ATCO Outage 728s 701T (728s Mercer Hill), 728s 501TD (728s Mercer Hill), 728s 503 (728s Mercer Hill), 728s 52-1 (728s Mercer Hill), 728s 52-2 (728s Mercer Hill) breaker replacement 11.25 Days
Continuous		  
08-Apr-24 10:00 19-Apr-24 17:30 ATCO Outage 786s SVC (786s High Level), 786s 703T (786s High Level), 786s 703 (786s High Level) 703T leak repair 11.31 Days
Continuous		  
08-Apr-24 10:00 19-Apr-24 17:30 ATCO TE 786s RTU/SCADA (786s High Level) qualitrol ITM/ETM replacement and update RTU 11.31 Days
Continuous		  
08-Apr-24 10:55 09-Apr-24 17:00 ATCO Outage 716s 701T (716s Lloydminster), 716s 701C (716s Lloydminster), 716s 701 (716s Lloydminster), 716s 704 (716s Lloydminster) 716s rebuild 30.08 Hours
Continuous		  
08-Apr-24 11:00 21-Apr-24 17:00 ATCO Outage 716s 701 (716s Lloydminster) 716s rebuild:
7L749 new line relay install & commission		 13.25 Days
Continuous		  
08-Apr-24 11:00 21-Apr-24 17:00 ATCO Outage 716s 701C (716s Lloydminster), 716s 704 (716s Lloydminster) 716s rebuild: 701C new relay install & commission
 13.25 Days
Continuous		  
08-Apr-24 11:00 09-Apr-24 17:00 ALTALINK TE 42s RTU/SCADA (42s Sarcee) replace failed SG-4520 RTU 30 Hours
Daily		  
08-Apr-24 11:00 13-Apr-24 17:00 ALTALINK TE 64s Protection & Control (64s East Crossfield) implement fault reporting on 901L B21/L1 SEL421 5.25 Days
Daily		  
08-Apr-24 12:15 11-Apr-24 17:45 ALTALINK Outage 56s 138kV Bus 2 (56s Boyle), 56s C1 (56s Boyle), 56s T2 (56s Boyle), 710L (56s Boyle - 159s Colinton) CVT replacement (56s21), T2 maintenance, switch repair (56s25, 56s26) 3.23 Days
Continuous		  
08-Apr-24 13:00 11-Apr-24 18:00 ALTALINK Outage 86s T1 (86s Bigstone) replace 86s T1 bushing monitors and conduct T1 maintenance 3.21 Days
Continuous		  
08-Apr-24 13:00 10-Apr-24 18:00 ALTALINK Outage 753L (65s High River - 253s Blackie), 65s 753E (65s High River), 253s 753W (253s Blackie) 65s753E breaker maintenance 2.21 Days
Continuous		  
08-Apr-24 13:00 08-Apr-24 17:00 ALTALINK TE 899s Protection & Control (899s Edgerton) install temp settings on 749L for ATCO related work 4 Hours
Daily		  
09-Apr-24 07:00 09-Apr-24 12:00 EPCOR Outage 330p 1203 (330p Genesee) Genesee 1203 Breaker De-commission CT frame protection trips and update 809 BF trips 5 Hours
Continuous		  
09-Apr-24 07:00 09-Apr-24 17:00 Lethbridge, ALTALINK Outage 674s 725W (674s Bowron), 725L (674s Bowron - 725BL tap) outage on 725LW to cutover/commission SCADA points 10 Hours
Continuous		  
09-Apr-24 07:00 09-Apr-24 17:00 ALTALINK TE 157s Protection & Control (157s Lac La Biche) card replacement and firmware upgrade 10 Hours
Daily		  
09-Apr-24 08:00 11-Apr-24 16:00 ENMAX, ALTALINK Outage 985L (74s Janet - SS-25), 25B240-D132 (SS-25), 25B240-D133 (SS-25), 25MD240-985 (SS-25) HV SW Maint. MD-985, SW135, SW134. Summer Substation Washing. Power factor tes 25PT240-985 2.33 Days
Continuous		  
09-Apr-24 08:00 11-Apr-24 16:00 ENMAX, ALTALINK IO 985L (74s Janet - SS-25) ENMAX summer substation washing 2.33 Days
Continuous		  
09-Apr-24 08:00 14-Apr-24 18:00 ENMAX Outage 240kV West Bus (SS-25), 25B240-D142 (SS-25), 25B240-D139 (SS-25), 25B240-D136 (SS-25), 25B240-D133 (SS-25) Summer Substation Washing. Outage required for washing stand off insulators near transmission lines. HV SW Maint. SW154, SW148, SW142, SW136 5.42 Days
Continuous		  
09-Apr-24 08:00 10-Apr-24 17:30 ALTALINK Outage 89s T2 (89s Ellerslie) PD install 1.4 Days
Continuous		  
09-Apr-24 08:00 09-Apr-24 12:00 ATCO Outage 716s 7L42D2 (716s Lloydminster), 7L42 (716s Lloydminster - 751s Hill), 716s 701T (716s Lloydminster), 716s 701C (716s Lloydminster) 716S Lloyd sub rebuild
Cut in Jumpers to replace 7L42D2 at 716S
Will close 700D1 after this outage to tie 7L42 and 7L749 together		 4 Hours
Continuous		  
09-Apr-24 08:00 10-Apr-24 17:00 ALTALINK TE 89s RTU/SCADA (89s Ellerslie) RTU database update 1.38 Days
Daily		  
09-Apr-24 08:00 09-Apr-24 17:00 Lethbridge TE 674s Protection & Control (674s Bowron) test and commission recently installed SEL RTAC RTU device - protection outages on 725LW A and B protection, and 152 breaker protection relays 9 Hours
Continuous		  
09-Apr-24 08:00 09-Apr-24 17:00 SUNCOR TE 29EDD-1 RTU/SCADA (29EDD-1 Millennium) BP - updates to 29EDD-1 for line protection upgrades 29PL6-5 9 Hours
Continuous		  
09-Apr-24 08:00 09-Apr-24 16:00 ENMAX Outage 33.83L (SS-33 - SS-41), 33B138-33.83 (SS-33) power factor test - 33B138-33.83-CT 8 Hours
Continuous		  
09-Apr-24 08:00 09-Apr-24 17:00 ALTALINK TE AltaLink Telecom Equipment 354s to complete a raw socket conversion on 7705A and a LAN switch upgrade 9 Hours
Daily		  
09-Apr-24 08:00 09-Apr-24 17:00 ALTALINK TE 523s Protection & Control (523s Bullshead) removing A21/67/79/L1 to install and commission new circuits and protections pertaining to the Dunmore project 9 Hours
Daily		  
09-Apr-24 08:00 09-Apr-24 17:00 ALTALINK, ATCO, SHELL TE AltaLink Telecom Equipment, 108s Protection & Control (108s Amelia), 108s RTU/SCADA (108s Amelia), 402s RTU/SCADA (402s Scotford Expansion 1) repair 108s - 9013R radio 9 Hours
Daily		  
09-Apr-24 08:00 09-Apr-24 18:00 ALTALINK TE AltaLink Telecom Equipment impact to PCES02L 391S-64S 4W RAS and RAS MATL ( OOS for 4 hours) 10 Hours
Daily		  
09-Apr-24 09:00 10-Apr-24 16:00 ATCO TE APS# 139 901T-766S Nevis Overload Mitigation Scheme, 766s RTU/SCADA (766s Nevis), 766s Protection & Control (766s Nevis) RAS-A1/766S and RAS-B1/766S will all require settings updates, modifying aggregate alarming 31 Hours
Continuous		  
09-Apr-24 09:00 10-Apr-24 17:00 ATCO TE 802s RTU/SCADA (802s Michichi Creek), 802s Protection & Control (802s Michichi Creek) RAS-A/802S and RAS-B/802S require settings updates 1.33 Days
Continuous		  
09-Apr-24 09:30 10-Apr-24 17:30 ATCO TE 811s Protection & Control (811s Clairmont Lake) PRC-005 - relay testing - 21A-85/7L22 and 21B-79-85/7L22 at 811Ss 1.33 Days
Continuous		  
09-Apr-24 10:00 02-Jun-24 18:00 ATCO TE 716s Protection & Control (716s Lloydminster) settings changes on 7L42 protection for 716S Sub Rebuild closing 700D1 at 716s 54.33 Days
Continuous		  
09-Apr-24 10:00 02-Jun-24 18:00 ATCO TE 751s Protection & Control (751s Hill) settings changes on 7L42 protection for 716S Sub Rebuild closing 700D1 at 716s 54.33 Days
Continuous		  
09-Apr-24 10:00 09-Apr-24 11:00 CMH Outage 4L (MHS-1 CMH Power Plant - MHS-6 CMH Riverview) CT wiring changes and associated sealed meter replacements 60 Mins
Continuous		  
09-Apr-24 10:00 10-Apr-24 16:00 ATCO TE 951s Protection & Control (951s Thickwood Hills) repairs to online gas monitoring equipment o 1201T and 1213R 30 Hours
Continuous		  
09-Apr-24 10:00 09-Apr-24 17:00 ATCO TE ATCO Telecom Equipment total outage to IP network access traffic 7 Hours
Continuous		  
09-Apr-24 10:00 10-Apr-24 16:00 ATCO TE 720s Protection & Control (720s Wabasca) updated fan bank switching, fan exercising and Fan Auto/Man push button logics at the 720s Wabasca 901T transformer monitoring SEL-2414 relay 30 Hours
Continuous		  
09-Apr-24 12:00 09-Apr-24 17:00 EPCOR Outage 330p 1206 (330p Genesee) Genesee 1206 Breaker de-commission CT frame and update 809 BF Trips 5 Hours
Continuous		  
09-Apr-24 12:30 09-Apr-24 17:30 ALTALINK Outage 404s Peace Butte, 600L (404s Peace Butte - 523s Bullshead), 523s 600 (523s Bullshead), 404s 12 (404s Peace Butte), 404s 600 (404s Peace Butte) install and commission new circuits and protections 5 Hours
Continuous		  
10-Apr-24 06:00 10-Apr-24 17:00 ATCO IO ATCO RTU upgrades, ATCO Telecom Equipment SOC2 Backup Control centre activation

System Operation will perform the failover to SOC2 Edmonton. All the system management and operations would be managed from SOC2.		 11 Hours
Continuous		  
10-Apr-24 07:00 10-Apr-24 18:00 ALTALINK Outage 880L (321s Al Rothbauer - 523s Bullshead), 321s 880 (321s Al Rothbauer), 523s 880 (523s Bullshead) install and commission new circuits and protections pertaining to the Dunmore Project 11 Hours
Daily		  
10-Apr-24 07:00 10-Apr-24 17:00 ALTALINK TE 17s Protection & Control (17s Benalto) 77/1144AIS Relay outage, no redundant protection. Protection outage to update comm failure timer, change alarm wiring from #14AWG to #18AWG and retest alarms. 10 Hours
Continuous		  
10-Apr-24 07:00 10-Apr-24 17:00 EPCOR Outage 330p 1209 (330p Genesee) breaker de-commission CT frame protection and update 809 BF 10 Hours
Continuous		  
10-Apr-24 07:00 10-Apr-24 17:00 Lethbridge, ALTALINK Outage 674s 725E (674s Bowron), 725L (674s Bowron - 725AL tap) Open End Outage on 725LE to Cutover/Commission SCADA points to SEL RTAC 10 Hours
Continuous		  
10-Apr-24 07:00 10-Apr-24 17:00 Lethbridge TE 674s Protection & Control (674s Bowron) test and commission recently installed SEL RTAC RTU device - protection outages on 725LE A and B protection, and 252 breaker protection relays 10 Hours
Continuous		  
10-Apr-24 08:00 11-Apr-24 17:00 ALTALINK TE 17s RTU/SCADA (17s Benalto) update RTU for comm failure timer and commission 1.38 Days
Daily		  
10-Apr-24 08:00 11-Apr-24 17:30 ALTALINK Outage 5s 1552 (5s East Calgary) 1st trip and maintenance 1.4 Days
Continuous		  
10-Apr-24 08:00 11-Apr-24 16:00 ENMAX Outage 33.84L (SS-33 - SS-43), 43.2TR (SS-43), 43B138-33.84 (SS-43) power factor test 1.33 Days
Continuous		  
10-Apr-24 08:00 10-Apr-24 17:00 ALTALINK TE 108s Protection & Control (108s Amelia) replace cards in failed protection 9 Hours
Daily		  
10-Apr-24 08:00 10-Apr-24 17:00 SUNCOR TE 29EDD-22 RTU/SCADA (29EDD-22) BP - updates to 29EDD-22 for line protection upgrades 29PL6-5, transformer protection upgrade
 9 Hours
Continuous		  
10-Apr-24 08:00 10-Apr-24 17:00 ALTALINK TE 370s RTU/SCADA (370s North Lethbridge), AltaLink Telecom Equipment complete a raw socket conversion on 7705A and a LAN switch upgrade 9 Hours
Daily		  
10-Apr-24 08:00 10-Apr-24 17:00 ALTALINK TE AltaLink Telecom Equipment, 492s RTU/SCADA (492s Monarch) 9370R to complete a raw socket conversion on 7705A and a LAN switch upgrade 9 Hours
Daily		  
10-Apr-24 08:00 11-Apr-24 17:00 ALTALINK TE 15s RTU/SCADA (15s Fort Macleod) RTU alarm points reconfiguration 1.38 Days
Daily		  
10-Apr-24 08:00 12-Apr-24 18:30 ATCO TE 863s Protection & Control (863s Paintearth) open 900PT1Y1 to re-wire secondary 2.44 Days
Continuous		  
10-Apr-24 08:00 10-Apr-24 17:00 ALTALINK TE AltaLink Telecom Equipment, 648s Protection & Control (648s Metiskow), 650s Protection & Control (650s Hansman Lake), 213s RTU/SCADA (213s Hughenden), 221s RTU/SCADA (221s Sunken Lake), 267s RTU/SCADA (267s Killarney Lake), 277s RTU/SCADA (277s Hayter), 508s RTU/SCADA (508s Lakesend), 545s RTU/SCADA (545s Provost), 648s RTU/SCADA (648s Metiskow) Component replacement to resolve alarm issue on 9532R - 9465R radio. Affects 948L, 7L224, 1047L A&B TPR. Loss of visibility of 213s, 221s, 267s, 277s, 508s, 545s, 648s, 650s, 899s for 4 hours in the timeframe indicated. 9 Hours
Daily		  
10-Apr-24 10:00 10-Apr-24 11:00 CMH Outage MH-8L (MHS-1 CMH Power Plant - MHS-6 CMH Riverview) CT wiring changes and associated sealed meter replacements 60 Mins
Continuous		  
10-Apr-24 10:00 10-Apr-24 17:00 ATCO TE ATCO Telecom Equipment total outage to IP network access traffic 7 Hours
Continuous		  
11-Apr-24 07:12 17-Apr-24 15:00 ENMAX Outage 1GSU-XF-001 (SS-25) maintenance 6.33 Days
Continuous		  
11-Apr-24 07:30 11-Apr-24 17:30 ALTALINK Outage 523s T1 (523s Bullshead) install and commission new circuits and protections pertaining to the Dunmore Project 10 Hours
Daily		  
11-Apr-24 08:00 24-Apr-24 16:00 Syncrude Outage UT1 (Aurora) SCL - downstream maintenance on the 15kV Bus 13.33 Days
Continuous		  
11-Apr-24 08:00 11-Apr-24 17:30 ALTALINK Outage 263s T1 (263s Strachan) URGENT replace 4 fuse cutouts - 1 completely broken (s2), 3 suspect (s2) and 1 suspect (s12). (Like for Like) 9.5 Hours
Daily		  
11-Apr-24 09:00 11-Apr-24 13:00 ALTALINK Outage 368s C1 (368s Burdett), 368s C2 (368s Burdett) 368s44 first trip testing - PRC 005 maintenance 4 Hours
Daily		  
11-Apr-24 09:30 11-Apr-24 17:30 ATCO TE 811s Protection & Control (811s Clairmont Lake) settings update on 7L32 protection 8 Hours
Continuous		  
11-Apr-24 10:00 11-Apr-24 17:00 ATCO TE ATCO Telecom Equipment total outage to IP network access traffic 7 Hours
Continuous		  
12-Apr-24 07:00 15-Apr-24 18:00 ALTALINK Outage 858L (40s Wetaskiwin - 289s Saunders Lake) replace and install new foundation on 804L91 (858L12), bond hardware at str 34, splice out OHSW at structure 70 3.46 Days
Continuous		  
12-Apr-24 07:00 14-Apr-24 18:00 ALTALINK Outage 746L (700L tap - 746AL tap), 700L (422s Westwood - 746L tap), 700L (746s Sherwood Park - 746L tap), 746s 700N (746s Sherwood Park), 422s 700 (422s Westwood) remove existing ohsw from 746L structures 39-41 2.46 Days
Continuous		  
12-Apr-24 08:00 14-Apr-24 16:00 ENMAX Outage 38.83L (SS-38 - SS-39), 38B138-38.83 (SS-38), 39B138-38.83 (SS-39) Line clearance mitigation 2.33 Days
Continuous		  
12-Apr-24 08:00 17-Apr-24 17:00 ALTALINK TE 163s RTU/SCADA (163s Amoco Empress) update configuration and testing to implement new bus protection - for 1004s Bullseye 5.38 Days
Daily		  
12-Apr-24 08:00 12-Apr-24 16:00 ALTALINK Outage 760L (163s Amoco Empress - 760AL tap), 163s 760N (163s Amoco Empress) connect CT and test trip for new bus protection for 1004s Bullseye project 8 Hours
Daily		  
12-Apr-24 08:00 12-Apr-24 16:00 ATCO RB 7L760 (767s Oyen - 7LA760 tap) Altalink request 8 Hours
Continuous		  
12-Apr-24 08:00 12-Apr-24 16:00 ALTALINK TE 394s Protection & Control (394s Empress) disable 394s anti islanding during 163s760N outage 8 Hours
Continuous		  
12-Apr-24 08:00 12-Apr-24 16:00 ENMAX TE RTU/SCADA (SS-26) SDN network security upgrade 8 Hours
Continuous		  
12-Apr-24 08:00 12-Apr-24 17:00 ALTALINK TE AltaLink Telecom Equipment, 308s RTU/SCADA (308s Albchem Beaverhill Creek) upgrade 308s MPLS node 9 Hours
Daily		  
12-Apr-24 08:00 12-Apr-24 17:00 ALTALINK TE AltaLink Telecom Equipment, 171s RTU/SCADA (171s Redwater) upgrade 171s MPLS node 9 Hours
Daily		  
12-Apr-24 09:00 12-Apr-24 16:00 ATCO TE 764s Protection & Control (764s Heisler) relay work - 87TA/701T at 764s 7 Hours
Continuous		  
12-Apr-24 09:00 12-Apr-24 17:00 ALTALINK TE 1019s RTU/SCADA (1019s Woolchester) trouble shooting of intrusion alarm 8 Hours
Daily		  
12-Apr-24 10:00 12-Apr-24 16:00 ATCO TE 755s Protection & Control (755s Cordel) RAS-A/9L16, RAS-B/9L16, RAS-A/755S, and RAS-B/755S need to be updated 6 Hours
Continuous		  

Prepared On:   2024-04-03   15:48:23

This document and the information contained herein are based upon information and data which by their nature contain a degree of uncertainty and are subject to change. In addition, this document may contain information and data from public sources and/or third parties, which have been assumed to be accurate and complete and have not been verified. Accordingly, the Independent System Operator, operating as the Alberta Electric System Operator (the "AESO") makes no warranty, representation or guarantee, express or implied, with respect to this document or the information contained herein, including, but not limited to, any warranty, representation or guarantee of accuracy, completeness, timeliness, reliability, availability, absence of computer virus, non- infringement, merchantability or suitability for any purpose. Under no circumstances will the AESO, its members, officers, employees, contractors or agents, or any of their respective affiliates, be liable for any errors or omissions in, or any losses, damages or claims whatsoever, whether in contract, tort or otherwise, arising from use of or reliance upon, this document or any information contained herein.

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