Alberta Electric System Operator
System Co-ordination Plan
2023-10-26 to 2023-11-03
Approved Outages

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From To Owner Type Element Scheduled Activity Date/Time Comments Interconnection
05-Oct-18 08:00 31-Dec-23 16:00 EPCOR IO C2 (Rossdale) forced outage 1,913.38 Days
Continuous		  
24-Oct-18 01:13 31-Dec-23 16:00 EPCOR IO C1 (Rossdale) forced outage 1,894.66 Days
Continuous		  
14-Mar-22 14:00 31-Dec-23 18:00 ATCO TE 813s SVC (813s Little Smoky) emergency real time failed relay 657.21 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 01-Mar-24 18:00 SUNCOR Outage 29EDD-71 752-4651 (29EDD-71) breaker will remain offline for undetermined period of time 352.04 Days
Continuous		  
17-May-23 17:01 30-Nov-23 17:00 EPCOR Outage 72RG7 (Garneau - Rossdale) faulted cable 197.04 Days
Continuous		  
29-May-23 08:20 12-Jan-24 23:00 ATCO Outage 840s McNeill Station filter bank forced outage 228.65 Days
Continuous		 AB-SK
05-Jun-23 07:00 22-Dec-23 17:00 EPCOR Outage 805s C1 (805s Jasper), EP 805s J2408 (EP 805s Jasper) Jasper: Emergency Investigation of J2408 Cap Bank Breaker 200.46 Days
Continuous		  
12-Jun-23 00:00 31-Mar-24 00:00 ATCO Outage 7L64 (747s Bassett - 930s Arcenciel) forced outage due to fire 293 Days
Continuous		  
12-Jun-23 10:00 29-Dec-23 17:00 ATCO TE 766s RTU/SCADA (766s Nevis) nevis upgrade project
200.33 Days
Continuous		  
23-Jun-23 10:00 22-Nov-23 17:00 ATCO Outage 822s 701T (822s Wolf Lake), 822s 704 (822s Wolf Lake) P&C and SCADA upgrade
152.33 Days
Continuous		  
23-Jun-23 17:01 19-Dec-23 17:00 EPCOR Outage T3 (Garneau) TX3 LCR construction 179.04 Days
Continuous		  
29-Jun-23 13:00 10-Nov-23 17:30 ATCO RB 7L199 (347s AML Fox Creek - 741s ATC Fox Creek) Fortis interchange project
HOP on 7L199 to tap up 750s near pole 89		 134.23 Days
Continuous		  
04-Jul-23 13:00 12-Jan-24 17:30 ATCO IO 840s McNeill Station PQM at 840s McNeill to investigate voltage transients and harmonics 192.23 Days
Continuous		  
10-Jul-23 10:00 04-Dec-23 17:00 ATCO TE 766S 144kV Bus Protection, 766S 240kV Bus Protection 766S Nevis Rebuild Project - 144kV and 240kV Bus protections OOS for duration of project 147.33 Days
Continuous		  
10-Jul-23 10:00 04-Dec-23 17:00 ATCO TE 766s Protection & Control (766s Nevis) 766S Nevis Rebuild Project 147.33 Days
Continuous		  
20-Jul-23 08:00 07-Nov-23 15:30 REDDEER Outage 217s T2 (217s North Red Deer) 217s 14T2 containment upgrade and transformer replacement 110.35 Days
Continuous		  
24-Jul-23 09:00 15-Dec-23 17:30 ATCO TE 766s Protection & Control (766s Nevis) modify protections for 901T replacement project 144.4 Days
Continuous		  
25-Jul-23 11:01 04-Dec-23 17:00 ATCO Outage 766s 901T (766s Nevis) 766S Nevis Rebuild Project 132.29 Days
Continuous		  
31-Jul-23 14:56 14-Dec-23 16:00 ENMAX Outage 38B138-38.1CAP (SS-38), 38.1C (SS-38) motor run time fail 136.09 Days
Continuous		  
09-Aug-23 08:00 10-Nov-23 17:00 ALTALINK TE 385s RTU/SCADA (385s Spring Coulee) updating RTU configuration for station refurbishment 93.42 Days
Daily		  
12-Aug-23 18:00 01-Dec-23 10:00 ALTALINK Outage 29s T2 (29s Cascade) cutover and energize new 177s switchgear 110.71 Days
Continuous		  
21-Aug-23 17:01 04-Dec-23 17:00 ATCO IO 766s 144kV Bus (766s Nevis) connect new 704A to the 144 kV bus, work still required to install new 903T and 704 to connect to 704A 105.04 Days
Continuous		  
22-Aug-23 09:30 29-Nov-23 17:30 ATCO TE 848s RTU/SCADA (848s Ruth Lake), 848s Protection & Control (848s Ruth Lake) Suncor capacity increase project -
RTU upgrades		 99.38 Days
Continuous		  
30-Aug-23 08:00 26-Oct-23 16:00 ENMAX Outage 1.84L (SS-1 - SS-5), 5B138-1.84 (SS-5) green line 1.84L civil and electrical tie-in 57.33 Days
Continuous		  
01-Sep-23 20:00 31-Mar-24 17:00 ATCO Outage 7L113 (853s Ring Creek - 930s Arcenciel) forced outage 211.88 Days
Continuous		  
02-Sep-23 08:00 10-Nov-23 16:00 ENMAX Outage 13.1TR (SS-13) tapchanger replacement, HV bushing replacement, power factor test transformer, oil sampling 69.38 Days
Continuous		  
03-Sep-23 18:00 26-Oct-23 16:00 ENMAX Outage 1.82L (SS-1 - SS-5) green Line 1.84L civil and electrical tie -in 52.92 Days
Continuous		  
08-Sep-23 09:30 29-Nov-23 17:30 ATCO, SUNCOR Outage 29PL9-1 (29EDD-1 Millennium - 848s Ruth Lake), 848s 903 (848s Ruth Lake), 848s 906 (848s Ruth Lake) reconductor 29PL9-1 (Suncor Capacity Increase project) 82.38 Days
Continuous		  
08-Sep-23 09:30 30-Oct-23 08:00 ATCO, SUNCOR Outage 29PL9-2 (29EDD-1 Millennium - 848s Ruth Lake), 848s 901 (848s Ruth Lake), 848s 902 (848s Ruth Lake) reconductor 29PL9-1 (Suncor Capacity Increase project) 51.94 Days
Continuous		  
11-Sep-23 07:00 17-Nov-23 17:00 EPCOR TE Protection & Control (Namao) protection blocking for breaker fail and SA upgrade cutovers and commissioning 67.46 Days
Continuous		  
13-Sep-23 07:00 10-Nov-23 17:00 EPCOR TE N721 (Namao), N722 (Namao), N723 (Namao), N724 (Namao), N725 (Namao), N726 (Namao) Namao: breaker fail relays out-of-service 58.46 Days
Continuous		  
18-Sep-23 09:00 17-Nov-23 17:00 ATCO TE 739s RTU/SCADA (739s Edith Lake) SCADA upgrades 60.38 Days
Continuous		  
20-Sep-23 10:00 04-Dec-23 17:00 ATCO Outage 766S 240KV Bus, 766s 901 (766s Nevis), 766s 902 (766s Nevis) replace and commission equipment as part of Nevis rebuild project 75.33 Days
Continuous		  
23-Sep-23 17:00 02-Nov-23 11:00 ALTALINK Outage 659s T1 (659s Pegasus Lake), 659s 289 (659s Pegasus Lake) switch replacements, protections 39.75 Days
Continuous		  
25-Sep-23 07:00 29-Feb-24 17:00 EPCOR TE 330p RTU/SCADA (330p Genesee) Genesee re-powering project work 157.46 Days
Continuous		  
25-Sep-23 09:00 27-Oct-23 17:00 BCH Outage T4 (BCH Natal), 2CB2 (BCH Natal) replace NTL 2CT2 BC maintenance does not affect the Alberta ATC 32.33 Days
Continuous		 AB-BC
30-Sep-23 08:00 30-Oct-23 07:59 ATCO, SUNCOR Outage 29PL9-1 (29EDD-1 Millennium - 848s Ruth Lake), 29PL9-2 (29EDD-1 Millennium - 848s Ruth Lake) reconductoring for 29PL9-2
29PL9-2 B protection retrofit and associated pre-commissioning / commissioning		 30 Days
Continuous		  
01-Oct-23 15:01 29-Oct-23 09:00 ALTALINK Outage 385s 69kV Bus (385s Spring Coulee), 385s T1 (385s Spring Coulee), 385s T2 (385s Spring Coulee), 385s T3 (385s Spring Coulee), 385s 225 (385s Spring Coulee), 385s 67 (385s Spring Coulee) station refurbishment 27.75 Days
Continuous		  
02-Oct-23 08:00 31-Oct-23 17:00 ATCO TE 766s Protection & Control (766s Nevis), APS# 139 901T-766S Nevis Overload Mitigation Scheme work on RAS Hub at Nevis 29.38 Days
Continuous		  
02-Oct-23 10:00 30-Oct-23 16:00 ATCO Outage 739s 701T (739s Edith Lake), 6L11 (739s Edith Lake - 854s Swan Dive), 6L97 (735s Swan River - 739s Edith Lake), 739s 601 (739s Edith Lake), 739s 602 (739s Edith Lake), 739s 603 (739s Edith Lake), 735s 603 (735s Swan River) protection and control upgrades 28.25 Days
Continuous		  
05-Oct-23 11:30 30-Nov-23 18:00 ATCO Outage 6L12 (774s Monitor - 6L25 tap), 774s 601 (774s Monitor), 774s 701T (774s Monitor), 774s 707 (774s Monitor) forced out 56.31 Days
Continuous		  
09-Oct-23 07:00 08-Dec-23 16:00 ALTALINK TE 368s Protection & Control (368s Burdett) upgrade the A87/138B relay 60.42 Days
Continuous		  
09-Oct-23 07:13 10-Nov-23 17:00 ALTALINK Outage 71s 152 (71s Lamoureux) forced outage 32.45 Days
Continuous		  
10-Oct-23 09:00 17-Nov-23 17:00 ATCO TE 802s Protection & Control (802s Michichi Creek) relay settings updates and commissioning 38.38 Days
Continuous		  
10-Oct-23 16:30 31-Oct-23 00:00 ATCO Outage 930s Syn Condenser (930s Arcenciel), 930s SVC (930s Arcenciel), 930s 718 (930s Arcenciel) forced outage 20.31 Days
Continuous		  
10-Oct-23 23:00 25-Nov-23 17:00 ALTALINK Outage 62s 12 (62s Brazeau Plant) maintenance 45.79 Days
Continuous		  
16-Oct-23 07:00 27-Oct-23 17:00 ALTALINK TE 275s Protection & Control (275s Jenner) protection outages required 11.42 Days
Continuous		  
16-Oct-23 07:00 27-Oct-23 17:00 ALTALINK TE 275s RTU/SCADA (275s Jenner) supervisory outages required for protection upgrades functional testing. 11.42 Days
Continuous		  
16-Oct-23 09:00 28-Nov-23 17:00 ALTALINK TE 368s RTU/SCADA (368s Burdett), AltaLink Distribution Switch supervisory visibility outages may be required to download new configurations 43.38 Days
Continuous		  
16-Oct-23 09:00 27-Oct-23 17:00 BCH Outage 2L112 (BPA Boundary - BCH Nelway) T2 inspection, doble and tap changer inspection 11.33 Days
Continuous		 AB-BC
16-Oct-23 11:00 26-Oct-23 18:00 ALTALINK Outage 523s T1 (523s Bullshead) replace 25kV PTs (SS1 & s14) and install bird cover-ups, salvage 25kV switch (523s3) 10.29 Days
Continuous		  
18-Oct-23 07:00 01-Feb-24 17:00 EPCOR Outage 987s CDS33 (987s Cloverbar) continued re-configuration of 240 kV ring for new 1191L bay construction will leave the ring open from newly energized CDS41 and CDS44 disconnects. 106.46 Days
Continuous		  
18-Oct-23 07:00 11-Dec-23 17:00 ATCO TE 885s Protection & Control (885s McMillan) 885S protection upgrade 54.46 Days
Continuous		  
20-Oct-23 06:00 14-Nov-23 18:00 SUNCOR IO 30EDD-2 Protection & Control (30EDD-2) PM 5y
 25.54 Days
Continuous		  
21-Oct-23 07:00 05-Nov-23 16:00 EPCOR Outage 330p 500kV Bus 2 (330p Genesee), 330P 12TC2 (330p Genesee), 330p 1209 (330p Genesee), 330p 1206 (330p Genesee), 330p 1203 (330p Genesee), 330p 809 (330p Genesee), 330p 12TC2D (330p Genesee) Genesee Repowering: 500kv Bus 2 outage to connect BB2L to old 330P 15.42 Days
Continuous		  
21-Oct-23 12:01 18-Nov-23 16:00 ALTALINK Outage 264s 240kV Bus 2 (264s Elkwater), 264s 352 (264s Elkwater), 264s 252 (264s Elkwater) complete 264s construction on 240kV BUS 2 @ 264s 28.21 Days
Continuous		  
21-Oct-23 18:00 03-Nov-23 16:00 ATCO Outage 7L106 (834s Wesley Creek - 905s Meikle), 834s 7L106D2 (834s Wesley Creek) forced outage - repair blown PT 12.92 Days
Continuous		  
23-Oct-23 06:30 03-Nov-23 18:30 ALTALINK RB 150L (20s Ghost - 150AL tap), 150L (42s Sarcee - 150AL tap) soil GeoTech testing - drilling boreholes. 25 locations near Cochrane proximity to the line work 11.5 Days
Daily		  
23-Oct-23 07:00 27-Oct-23 17:00 EPCOR Outage N726 (Namao), 72NW15 (Namao - Woodcroft) Namao: N726 breaker fail upgrade cutovers 4.42 Days
Continuous		  
23-Oct-23 07:00 10-Nov-23 17:00 EPCOR Outage 72LH8 (EP 803s Lambton - EP Hardisty) LH8: aerial pole LCR (3 Poles) 18.46 Days
Continuous		  
23-Oct-23 07:00 26-Oct-23 18:00 ALTALINK TE 310p RTU/SCADA (310p Sundance) update configuration for 310p2752 breaker replacement 3.46 Days
Daily		  
23-Oct-23 07:30 18-Dec-23 17:30 ALTALINK RB 983L (244s Bowmanton - 983L tap), 983L (251s Whitla - 983L tap), 983AL (1019s Woolchester - 983L tap) tying in the new 326s Murray Lake substation 56.46 Days
Daily		  
23-Oct-23 08:00 31-Oct-23 09:00 ALTALINK Outage 189L (373s Madden - 418L tap), 373s Madden, 373s 752 (373s Madden), 373s 25 (373s Madden) component replacements 189L (Str's 9-87) 8.04 Days
Continuous		  
23-Oct-23 08:00 30-Nov-23 16:00 ENMAX Outage 2.82L (SS-2 - SS-5), 5B138-2.82 (SS-5) facilitate future 2.82L double circuit configuration 38.38 Days
Continuous		  
23-Oct-23 08:30 26-Oct-23 17:30 ALTALINK RB 491L (252s Jarrow - 7L50 tap) ATCO 7L50 pole and arm replacement using live line techniques 3.38 Days
Daily		  
23-Oct-23 09:00 26-Oct-23 17:00 ATCO, ALTALINK RB 7L50 (526s Buffalo Creek - 491L tap) 7L50 pole and arm replacement using live line techniques 3.33 Days
Daily		  
23-Oct-23 09:00 27-Oct-23 16:30 ATCO, ALTALINK Outage 7L50 (526s Buffalo Creek - 491L tap), 526s 252 (526s Buffalo Creek) pole and arm replacement 4.31 Days
Continuous		  
23-Oct-23 09:00 27-Oct-23 16:30 ATCO, ALTALINK IO 7L50 (526s Buffalo Creek - 491L tap) pole and arm replacement 4.31 Days
Continuous		  
23-Oct-23 09:00 18-Dec-23 17:00 ALTALINK TE 244s Protection & Control (244s Bowmanton) update settings and test 56.38 Days
Daily		  
23-Oct-23 09:00 18-Dec-23 17:00 ALTALINK TE 244s Protection & Control (244s Bowmanton) removing 244s AIS 1143 'A' & 'B' one at a time to update settings and test 56.38 Days
Daily		  
23-Oct-23 09:30 06-Nov-23 17:00 EPCOR TE 330p Protection & Control (330p Genesee) protection blocking on 1239L and 1209L 14.35 Days
Continuous		  
23-Oct-23 09:30 06-Nov-23 17:00 ALTALINK, EPCOR RB 1209L (89s Ellerslie - 330p Genesee), 1203L (320p Keephills - 510s Sunnybrook) Genesee repowering project 14.35 Days
Continuous		  
23-Oct-23 12:00 26-Oct-23 18:00 ALTALINK Outage 320p T1 (320p Keephills), 320p 91 (320p Keephills) transformer maintenance, fix leaks, fan, & burned wires and test transformer 3.25 Days
Continuous		  
23-Oct-23 12:00 26-Oct-23 17:00 ALTALINK Outage 45s T1 (45s Bretona) fix leaks, maintain, doble 45s T1 3.21 Days
Continuous		  
23-Oct-23 12:00 18-Dec-23 15:00 ATCO TE 873s RTU/SCADA (873s Marion Lake), 873s Protection & Control (873s Marion Lake) replacing 601T transformer, and upgrading protection with new protection panels and relays 56.17 Days
Continuous		  
23-Oct-23 13:00 27-Oct-23 12:00 ALTALINK Outage 722L (107s Westfield - 368s Burdett), 107s Westfield, 368s 722X (368s Burdett) protection and CT work 3.96 Days
Continuous		  
24-Oct-23 07:00 31-Oct-23 11:00 ALTALINK Outage 185L (379s Shell Canada Waterton - 415s Drywood), 379s 185E (379s Shell Canada Waterton) component replacements between structures #140 - 215 7.17 Days
Continuous		  
24-Oct-23 07:30 06-Nov-23 17:30 ALTALINK RB 1034L (244s Bowmanton - 324s Cassils) crews working on adjacent 1035L 13.46 Days
Daily		  
24-Oct-23 08:00 27-Oct-23 17:30 ATCO Outage 12L41 (510s Sunnybrook - 939s Livock), 12L44 (939s Livock - 951s Thickwood Hills), 951s 1201T (951s Thickwood Hills), 951s 1201TA (951s Thickwood Hills), 951s 1205 (951s Thickwood Hills), 951s 1205A (951s Thickwood Hills), 951s 1205B (951s Thickwood Hills), 951s 1206 (951s Thickwood Hills), 951s 1206A (951s Thickwood Hills), 951s 1206B (951s Thickwood Hills), 951s 1213R (951s Thickwood HIlls), 951s 1213 (951s Thickwood Hills), 951s 1213A (951s Thickwood Hills), 951s 12L44D1 (951s Thickwood Hills), 951s 1204A (951s Thickwood Hills), 939s 12L44D1 (939s Livock), 939s 1213R (939s Livock), 939s 1214R (939s Livock), 939s 1216R (939s Livock), 939s 1206 (939s Livock), 939s 1207 (939s Livock), 939s 1214 (939s Livock), 939s 1216 (939s Livock), 939s 1204A (939s Livock), 939s 1205B (939s Livock), 939s 1206A (939s Livock), 939s 1206B (939s Livock), 939s 1207A (939s Livock), 939s 1207B (939s Livock), 939s 1208A (939s Livock), 939s 1209B (939s Livock), 939s 1213A (939s Livock), 939s 1214A (939s Livock), 939s 1216A (939s Livock), 939s 12L41D1 (939s Livock) vertical bus structure repairs and relay setting updates 3.4 Days
Continuous		  
24-Oct-23 08:00 27-Oct-23 17:30 ATCO, ALTALINK Outage 1241L (510s Sunnybrook - 939s Livock) ATCO work 3.4 Days
Continuous		  
24-Oct-23 08:00 26-Oct-23 17:00 ALTALINK TE 659s RTU/SCADA (659s Pegasus Lake) configure new alarms for T1 and T1 protection replacement 2.38 Days
Daily		  
24-Oct-23 08:00 27-Oct-23 17:00 ATCO TE 790s RTU/SCADA (790s Poplar Hill) RTU changes 3.38 Days
Continuous		  
24-Oct-23 08:00 03-Nov-23 17:30 ATCO TE 939s Protection & Control (939s Livock), 939s RTU/SCADA (939s Livock) PRC-002 relay setting update 10.4 Days
Continuous		  
24-Oct-23 08:00 27-Oct-23 17:30 ATCO TE 951s Protection & Control (951s Thickwood Hills) relay setting updates 3.4 Days
Continuous		  
24-Oct-23 11:00 26-Oct-23 16:00 ALTALINK TE 650s Protection & Control (650s Hansman Lake) replace battery on A87/T3 protection 2.21 Days
Daily		  
25-Oct-23 07:30 28-Oct-23 17:30 ALTALINK RB 164L (103s Goose Lake - 415s Drywood) crews working within close proximity on 185L209 3.42 Days
Daily		  
25-Oct-23 08:00 26-Oct-23 16:00 ENMAX Outage 9.3TR (SS-9) CT terminal block replacement 1.33 Days
Continuous		  
25-Oct-23 08:00 26-Oct-23 17:00 ALTALINK TE 233s Protection & Control (233s Beamer) standard relay maintenance 1.38 Days
Daily		  
25-Oct-23 08:00 26-Oct-23 08:00 Syncrude Outage ML-3 (D05) ML-3 at D05 Substation to perform transmission line repairs 24 Hours
Continuous		  
25-Oct-23 08:00 26-Oct-23 17:00 ALTALINK TE 498s Protection & Control (498s Tilley) PRC maintenance and meter replacements 1.38 Days
Daily		  
25-Oct-23 09:30 26-Oct-23 16:30 ALTALINK Outage 634s Shell Raven River, 634s T1 (634s Shell Raven River), 719BL (634s Shell Raven River - 719L tap), 634s 719 (634s Shell Raven River) VR1 leak repairs 31 Hours
Continuous		  
25-Oct-23 10:00 27-Oct-23 17:00 ATCO, GREENGATEP Outage 9L59 (972s Tinchebray - 9LA59 tap), 972s 901 (972s Tinchebray), 972s 902 (972s Tinchebray), 972s 9L59D2 (972s Tinchebray) replace cables damaged during vandalism and 9L93, 9L59, 50BF/901 protection relays rewired
 2.29 Days
Continuous		  
25-Oct-23 13:00 26-Oct-23 17:00 ALTALINK TE 154s Protection & Control (154s Black Spruce) troubleshoot and repair 971L A87/21/971L 28 Hours
Continuous		  
25-Oct-23 13:00 26-Oct-23 17:00 ALTALINK, MEGEC TE 762s Protection & Control (762s Conklin) troubleshoot and repair 971L A87/21/971L 28 Hours
Continuous		  
26-Oct-23 06:00 26-Oct-23 18:00 ALTALINK Outage 542s T1 (542s Ervick) upgrade arrestor grounding conductor and design for TX 18562 12 Hours
Daily		  
26-Oct-23 07:00 26-Oct-23 17:00 Lethbridge Outage 823L (146s MacDonald - 593s Lakeview), 593s 823L (593s Lakeview), 146s 823L (146s Macdonald) test/trip 593s2 protections 10 Hours
Continuous		  
26-Oct-23 07:00 06-Nov-23 18:00 ATCO, ALTALINK Outage 1035L (244s Bowmanton - 2075s Newell) component replacement (Str. 100 - 292) 11.5 Days
Continuous		  
26-Oct-23 07:00 06-Nov-23 18:00 ATCO, ALTALINK Outage 1035L (244s Bowmanton - 2075s Newell) AltaLink COG - component replacement (Str. 100 - 242) 11.5 Days
Continuous		  
26-Oct-23 08:00 26-Oct-23 17:00 ALTALINK TE AltaLink Telecom Equipment, 420s Protection & Control (420s Broadmoor), 746s RTU/SCADA (746s Sherwood Park) repair MPLS node at 420s 9 Hours
Daily		  
26-Oct-23 08:00 26-Oct-23 17:00 ALTALINK TE 71s Protection & Control (71s Lamoureux) standard relay maintenance 9 Hours
Daily		  
26-Oct-23 08:00 26-Oct-23 17:00 ALTALINK TE 388s Protection & Control (388s Riverside) standard relay maintenance 9 Hours
Daily		  
26-Oct-23 08:00 26-Oct-23 12:00 ATCO TE 969s RTU/SCADA (969s Lindbergh) 701T DGA station minor nuisance alarm 4 Hours
Continuous		  
26-Oct-23 08:00 29-Oct-23 18:00 SUNCOR TE 29PL9-13 (29EDD-34 - 29EDD-65) connect 29PL9-13 CT/PT circuits to the newly installed DFR relay 3.42 Days
Continuous		  
26-Oct-23 08:00 27-Oct-23 17:00 ALTALINK TE 358s RTU/SCADA (358s Amoco Brazeau) SCADA deficiency cleanup 1.38 Days
Daily		  
26-Oct-23 08:00 26-Oct-23 17:00 ALTALINK TE 638s RTU/SCADA (638s Esso Judy Creek) RTU firmware update 9 Hours
Daily		  
26-Oct-23 08:00 26-Oct-23 17:00 ALTALINK TE 5s Protection & Control (5s East Calgary) techs to replace power supplies 9 Hours
Daily		  
26-Oct-23 08:00 26-Oct-23 17:00 ENMAX, ALTALINK IO 5s C3 (5s East Calgary), 5s C4 (5s East Calgary) breaker testing, 9 Hours
Daily		  
26-Oct-23 08:30 26-Oct-23 16:30 ALTALINK Outage 510s 3952 (510s Sunnybrook) replace tank heater on 510s3952 8 Hours
Daily		  
26-Oct-23 08:30 30-Oct-23 12:30 ALTALINK Outage 284s T1 (284s Nose Creek) switchgear maintenance 4.17 Days
Continuous		  
26-Oct-23 09:00 26-Oct-23 10:00 ATCO TE ATCO Telecom Equipment upgrade Ksituan B SAR OS 60 Mins
Continuous		  
26-Oct-23 12:00 26-Oct-23 16:00 ATCO TE 940s RTU/SCADA (940s Beartrap) RTU updates and batteries exchange 4 Hours
Continuous		  
27-Oct-23 07:00 27-Oct-23 18:00 ALTALINK, ENMAX Outage 688L (199s East Airdrie - 688AL tap), 688AL (284s Nose Creek - 688L tap), 688L (653s Summit - 688AL tap), 199s 688 (199s East Airdrie), 653s 688 (653s Summit) replace 653s VT2 junction box and wiring 11 Hours
Daily		  
27-Oct-23 07:00 01-Nov-23 17:00 ENMAX, ALTALINK TE 653s RTU/SCADA (653s Summit) update SCADA configuration, implement new B87/138B protection 5.42 Days
Daily		  
27-Oct-23 08:00 09-Nov-23 18:00 SUNCOR TE 29EDD-1 RTU/SCADA (29EDD-1 Millennium) BP-29PL9-1 A&B protection SCADA modification 13.46 Days
Continuous		  
27-Oct-23 08:00 27-Oct-23 12:00 ENMAX Outage 162B240-RB136 (SS-162) CT terminal block replacement 4 Hours
Continuous		  
27-Oct-23 09:00 27-Oct-23 16:30 ATCO TE 956s Protection & Control (956s Watt Lake) failed /failing communication card investigation on 87 /701T relay
 7.5 Hours
Continuous		  
27-Oct-23 09:00 27-Oct-23 16:00 ALTALINK Outage 726L (37s North Calder - 71s Lamoureux), 781L (71s Lamoureux - 172s Sherritt), 71s 152 (71s Lamoureux), 71s 252 (71s Lamoureux), 71s 352 (71s Lamoureux), 71s T1 (71s Lamoureux), 71s 138kV West Bus (71s Lamoureux) Replace damaged 71s152 CT and 726L strain insulators. 7 Hours
Daily		  
27-Oct-23 12:00 27-Oct-23 16:00 ENMAX Outage 162B240-RB135 (SS-162), 2-GSU-XF-0002 (SS-162) CT terminal block replacement 4 Hours
Continuous		  
28-Oct-23 08:00 29-Oct-23 18:00 ENMAX Outage 13B138-2.83 (SS-13), 3.84L (SS-3 - SS-13), 13.1TR (SS-13), 13.3TR (SS-13) 13.1TR Tapchanger Replacement. Roll tranformer on pad. 13.1TR is already out of service. 1.42 Days
Continuous		  
28-Oct-23 08:00 05-Nov-23 18:00 Syncrude Outage 6245 (Syncrude Mildred Lake), 6335 (Syncrude Mildred Lake), 635 (Syncrude Mildred Lake), Mildred T6 (Syncrude Mildred Lake) plant 31 substation bus 6 13.8kV 6-year bus PM 8.46 Days
Continuous		  
28-Oct-23 08:00 28-Oct-23 12:00 ENMAX Outage 21.2TR (SS-21) Transformer Oil Sampling MT, TC 4 Hours
Continuous		  
28-Oct-23 08:00 11-Jan-24 16:00 ENMAX Outage 16.61L (SS-16 - SS-27), 16B69-16.61 (SS-16), 27B69-16.61 (SS-27) Line rebuild 75.38 Days
Continuous		  
28-Oct-23 08:00 29-Oct-23 16:00 ATCO TE 826s RTU/SCADA (826s Marguerite Lake) uploading a new config file to the SMP. Isolating the SMP will cause SOC to lose visibility of 826S Marguerite Lake. The SMP will only be isolated for 3-5 minutes 1.33 Days
Continuous		  
28-Oct-23 08:00 30-Oct-23 16:00 ATCO TE 826s Protection & Control (826s Marguerite Lake) blocking 7L587 21A and 21B protection to test new alarms to SMP 2.33 Days
Continuous		  
28-Oct-23 08:00 27-Nov-23 17:00 ATCO TE ATCO RTU/SCADA 6502S Empress Solar RTU Upgrades & Changes
Solar Commissioning (Inverters, AESO Curtailment). Will lose visibility of site for SOC, Fortis and AESO for periods of 5 minutes or less due to uploading/updating configs or rebooting the controller.		 30.42 Days
Continuous		  
28-Oct-23 09:00 28-Oct-23 15:00 EPCOR IO EPCOR PMU BCC - ACTIVATION - ANNUAL TEST 6 Hours
Continuous		  
28-Oct-23 12:00 28-Oct-23 16:00 ENMAX Outage 21.1TR (SS-21) Transformer Oil Sampling MT, TC. Check reversing switch. 4 Hours
Continuous		  
29-Oct-23 07:00 29-Oct-23 15:00 ALTALINK Outage 225L (225s Magrath - 385s Spring Coulee), 385s 67 (385s Spring Coulee), 225L (229s Glenwood - 385s Spring Coulee), 385s T1 (385s Spring Coulee), 385s T3 (385s Spring Coulee), 385s 225 (385s Spring Coulee), 385s 69kV Bus (385s Spring Coulee) Removing 470s Mobile Substation & 225L bypass 8 Hours
Daily		  
29-Oct-23 07:15 30-Nov-23 17:45 ALTALINK Outage 858L (40s Wetaskiwin - 289s Saunders Lake) Replace structures within 48 - 188. Perform structure maintenance within 1 - 235. 32.48 Days
Continuous		  
29-Oct-23 08:00 29-Oct-23 12:00 ENMAX Outage 39.3TR (SS-39) Oil Sampling MT, TC 4 Hours
Continuous		  
29-Oct-23 08:01 04-Dec-23 17:30 ATCO, SUNCOR Outage 29PL9-2 (29EDD-1 Millennium - 848s Ruth Lake) Suncor capacity increase project. Suncor is reconductoring 29PL9-2, ATCO is completing a line protection upgrade 36.44 Days
Continuous		  
29-Oct-23 09:00 29-Oct-23 15:00 ALTALINK TE 225s Protection & Control (225s Magrath) A & B Relays will be removed from service one at a time to change settings back to normal due to the temp. bypass being removed @ 385s. Redundant protection to remain in service at all times. 6 Hours
Daily		  
29-Oct-23 09:00 29-Oct-23 15:00 ALTALINK TE 415s Protection & Control (415s Drywood) A & B Relays will be removed from service one at a time to change settings back to normal due to the temp. bypass being removed @ 385s. Redundant protection to remain in service at all times. 6 Hours
Daily		  
29-Oct-23 12:00 29-Oct-23 16:00 ENMAX Outage 39.4TR (SS-39) Oil Sampling MT, TC 4 Hours
Continuous		  
29-Oct-23 15:00 31-Oct-23 12:00 ALTALINK Outage 385s T1 (385s Spring Coulee) Soaking new Tx for 24 Hours 1.88 Days
Continuous		  
29-Oct-23 15:00 29-Oct-23 17:00 ALTALINK RB 225L (229s Glenwood - 385s Spring Coulee) Removing 3 poles for the bypass that was installed during the 385s re-build. Crews working between Structures 464, 465, 469 & 470. 2 Hours
Daily		  
29-Oct-23 15:00 29-Oct-23 17:00 ALTALINK RB 225L (225s Magrath - 385s Spring Coulee) Removing 3 poles for the bypass that was installed during the 385s re-build. Crews working between Structures 464, 465, 469 & 470. 2 Hours
Daily		  
30-Oct-23 07:00 31-Oct-23 17:00 EPCOR Outage T3 (Namao) TX3 breaker fail upgrade cutovers 1.42 Days
Continuous		  
30-Oct-23 07:00 30-Oct-23 17:00 EPCOR Outage CV5 (EP 511s Victoria - 557s Castle Downs), EP 511s Victoria T5 (EP 511s Victoria), EP 511s V728 (EP 511s Victoria), EP 511s V727 (EP 511s Victoria), EP 511s V2401 (EP 511s Victoria), EP 511s VDS20 (EP 511s Victoria) VDS20 disconnect repair 10 Hours
Continuous		  
30-Oct-23 07:00 31-Oct-23 17:00 ALTALINK TE 244s Protection & Control (244s Bowmanton) firmware & reconfiguration of protections for new 264s substation 964L A&B protection, associated TPR's and 164RAS 1.42 Days
Continuous		  
30-Oct-23 07:00 31-Oct-23 17:00 ALTALINK TE 251s Protection & Control (251s Whitla) firmware & reconfiguration of protections for new 264s substation 964L A&B protection, associated TPR's and 164RAS 1.42 Days
Continuous		  
30-Oct-23 07:00 02-Nov-23 17:00 ALTALINK TE 207s Protection & Control (207s Pinedale) protection outages to implement fault reporting; 744L (L1) A21/67 SEL-311, 744L (L1) B21/67 GE D60 890L (L2) A21 SEL-311L 3.42 Days
Daily		  
30-Oct-23 07:00 03-Nov-23 17:00 ALTALINK TE 15s RTU/SCADA (15s Fort Macleod) supervisory outages to add and test new points for the L6, L8, and L12 feeder protection upgrades and breaker replacements 4.42 Days
Continuous		  
30-Oct-23 07:00 10-Nov-23 17:00 EPCOR Outage T2 (Rossdale), R721 (Rossdale), R723 (Rossdale), RAB2 (Rossdale) Rossdale: TX2 LCR TX Demo 11.46 Days
Continuous		  
30-Oct-23 07:00 02-Nov-23 18:00 ALTALINK TE 102s RTU/SCADA (102s Langdon) lowering JB sec boxes at 102s 3.46 Days
Daily		  
30-Oct-23 07:30 02-Nov-23 16:00 ALTALINK TE AML 511s RTU/SCADA (AML 511s Crossings) firmware updates on Ruggedcom switches requires supervisory outage 3.35 Days
Daily		  
30-Oct-23 07:30 02-Nov-23 17:30 ALTALINK RB 616AL (383s Kettles Hill Windfarm - 616L tap), 616L (103s Goose Lake - 616AL tap), 616L (59s Peigan - 616AL tap) 616L FRM component replacement (53-178) live line work 3.42 Days
Daily		  
30-Oct-23 08:00 11-Nov-23 18:00 Syncrude Outage Mildred T14 (Syncrude Mildred Lake) 5 year maintenance and repairs
 12.46 Days
Continuous		  
30-Oct-23 08:00 02-Nov-23 16:00 ATCO RB 7L69 (731s Elmworth - 815s Goodfare) walk up and climbing inspection 3.33 Days
Continuous		  
30-Oct-23 08:00 31-Oct-23 22:00 ATCO, SUNCOR Outage 29PL9-1 (29EDD-1 Millennium - 848s Ruth Lake) 29PL9-2 temporary energization 1.58 Days
Continuous		  
30-Oct-23 08:00 02-Nov-23 17:00 ALTALINK TE 207s RTU/SCADA (207s Pinedale) implement fault reporting on 744L (L1), 890L (L2) lines 3.38 Days
Daily		  
30-Oct-23 08:00 02-Nov-23 17:00 ALTALINK TE 504s RTU/SCADA (504s Queenstown) implement fault reporting on 161L (L1), 853L (L3) lines 3.38 Days
Daily		  
30-Oct-23 08:00 02-Nov-23 17:00 ALTALINK TE 526s RTU/SCADA (526s Buffalo Creek) implement fault reporting on 7L129 (L1), 7L50 (L2) lines 3.38 Days
Daily		  
30-Oct-23 08:00 14-Nov-23 17:00 ALTALINK TE 799s 27 (799s Coleman) supervisory outages required to add and test new alarm points 15.42 Days
Daily		  
30-Oct-23 08:00 02-Nov-23 17:00 ALTALINK TE 324s 935 (324s Cassils) protection outages to implement fault reporting 3.38 Days
Daily		  
30-Oct-23 08:00 02-Nov-23 17:00 ALTALINK TE 504s 853E (504s Queenstown) protection outages to implement fault reporting 3.38 Days
Daily		  
30-Oct-23 08:00 02-Nov-23 17:00 ALTALINK TE 526s C1 (526s Buffalo Creek) Protection outages to implement fault reporting 3.38 Days
Daily		  
30-Oct-23 08:00 01-Nov-23 17:00 ALTALINK TE 659s RTU/SCADA (659s Pegasus Lake) configure new alarms for T1 and T1 protection replacement 2.38 Days
Daily		  
30-Oct-23 08:00 10-Nov-23 16:00 ENMAX Outage 2.81L (SS-2 - SS-9), 9B138-2.81 (SS-9) 9B138-2.81 HVB overhaul 11.38 Days
Continuous		  
30-Oct-23 08:00 01-Nov-23 12:00 ENMAX, ALTALINK Outage 24.83L (74s Janet - SS-24), 24B138-24.83 (SS-24) Surge Arrestor Replacement 24B138-24.83 2.17 Days
Continuous		  
30-Oct-23 08:00 31-Oct-23 16:00 ENMAX Outage 26.1TR (SS-26) CT terminal block replacement 1.33 Days
Continuous		  
30-Oct-23 08:00 30-Oct-23 16:00 ENMAX Outage 47B138-BT3 (SS-47) ETS relay failed-will not swtich to back up 8 Hours
Continuous		  
30-Oct-23 08:00 01-Nov-23 12:30 ENMAX, ALTALINK IO 24.83L (74s Janet - SS-24) Surge Arrestor Replacement 24B138-24.83 2.19 Days
Continuous		  
30-Oct-23 08:00 08-Nov-23 17:00 ALTALINK TE 28s RTU/SCADA (28s West Brooks) RTU config updates for 763L line protection replacement and installation of new RAS relays 9.42 Days
Continuous		  
30-Oct-23 08:00 08-Nov-23 17:00 ALTALINK TE 158s RTU/SCADA (158s Vauxhall) RTU config updates for 763L line protection replacement and installation of new RAS relays 9.42 Days
Continuous		  
30-Oct-23 08:00 08-Nov-23 17:00 ALTALINK TE 447s RTU/SCADA (447s Enchant) RTU config updates for 763L line protection replacement and installation of new RAS relays 9.42 Days
Continuous		  
30-Oct-23 08:00 02-Nov-23 18:00 SUNCOR TE 29PL9-14 (29EDD-34 - 29EDD-56) BP-29PL9-14 “B” protection outage 3.42 Days
Continuous		  
30-Oct-23 08:00 01-Nov-23 16:00 ENMAX Outage 33.2TR (SS-33) relay protection test 2.33 Days
Continuous		  
30-Oct-23 08:00 02-Nov-23 16:00 ALTALINK TE AltaLink Telecom Equipment Calgary Core DWDM Upgrades 3.33 Days
Daily		  
30-Oct-23 08:00 02-Nov-23 16:00 ALTALINK TE AltaLink Telecom Equipment Calgary Core DWDM Upgrades 3.33 Days
Daily		  
30-Oct-23 08:00 30-Oct-23 17:00 ALTALINK TE 89s Protection & Control (89s Ellerslie) techs to block the 1209L relays for EPCOR work at remote end 9 Hours
Daily		  
30-Oct-23 09:00 02-Nov-23 16:30 ATCO Outage 7L50 (757s Battle River - 491L tap), 757s 709 (757s Battle River) pole and arm replacement 3.31 Days
Continuous		  
30-Oct-23 09:00 03-Nov-23 17:00 ATCO, ALTALINK RB 7L50 (526s Buffalo Creek - 491L tap) pole and arm replacement using live line techniques 4.33 Days
Continuous		  
30-Oct-23 09:00 03-Nov-23 17:00 ATCO, ALTALINK RB 7L50 (526s Buffalo Creek - 491L tap), 491L (252s Jarrow - 7L50 tap) pole and arm replacement using live line techniques 4.33 Days
Daily		  
30-Oct-23 09:00 30-Oct-23 10:00 ATCO TE ATCO Telecom Equipment, 722s RTU/SCADA (722s Crystal Lake), 7L39 (722s Crystal Lake - 7LA39 tap), 7L84 (722s Crystal Lake - 749s Flyingshot Lake), 7L68 (730s Rycroft - 811s Clairmont Lake) outage on Crystal Lake telecom 60 Mins
Continuous		  
30-Oct-23 09:00 31-Oct-23 17:00 ALTALINK TE 87s Protection & Control (87s Gaetz) PRC maintenance 1.33 Days
Daily		  
30-Oct-23 09:00 03-Nov-23 18:00 BCH RB 2L294 (BCH A. A. Lambert - BCH Cranbrook), 2L294 (BCH A. A. Lambert - BCH Nelway) hazard tree removals 2-01 to 38-04 4.38 Days
Continuous		 AB-BC
30-Oct-23 09:30 30-Oct-23 16:30 ALTALINK Outage 65s 812W (65s High River), 812L (65s High River - 812AL tap) Breaker Trip and CT Circuit Cut-Over, wire breaker status to B87/138, CT Loop, Saturation and Trip Test via B87/138 and 752 BF Relays 7 Hours
Daily		  
30-Oct-23 09:30 04-Nov-23 18:00 ALTALINK Outage 461L (198s Blackfalds - 212s N.E. Lacombe), 198s 461 (198s Blackfalds), 212s 461 (212s N.E. Lacombe) Replace STR’s 54, 55, 55A, 56 5.35 Days
Continuous		  
30-Oct-23 10:00 06-Nov-23 12:00 ATCO Outage 7L40 (733s Simonette - 813s Little Smoky), 733s 702 (733s Simonette) pole replacement from test and treat 7.13 Days
Continuous		  
30-Oct-23 10:00 13-Nov-23 16:00 ATCO Outage 739s 702T (739s Edith Lake) protection and control upgrade 14.29 Days
Continuous		  
30-Oct-23 10:00 08-Nov-23 17:00 ATCO TE 972s Protection & Control (972s Tinchebray), 972s RTU/SCADA (972s Tinchebray) relay settings updates, and RTU updates 9.33 Days
Continuous		  
30-Oct-23 10:00 03-Nov-23 17:30 ATCO TE 825s Protection & Control (825s Whitefish Lake), 825s Whitefish Lake RTU/SCADA PRC-005 - microprocessor relay testing 4.31 Days
Continuous		  
30-Oct-23 10:00 08-Nov-23 17:00 ATCO, PWLP TE 973s Protection & Control (973s Lanes Lake) Three terminal protection testing between 973S, 972S, and 615S. 973S relays will be commissioned and put in service under this permit. 9.33 Days
Continuous		  
30-Oct-23 10:00 12-Feb-24 17:30 ATCO TE 885s RTU/SCADA (885s McMillan)
protection upgrade at McMillan.		 105.35 Days
Continuous		  
30-Oct-23 10:30 30-Oct-23 15:30 ALTALINK TE 65s Protection & Control (65s High River) cut-over (65s812W) 952 CT circuit 5 Hours
Daily		  
30-Oct-23 11:00 27-Nov-23 12:00 ATCO Outage 885S 704, 885s 902T (885s McMillan), 885S 702TD (885s McMillan) protection upgrade 28.08 Days
Continuous		  
30-Oct-23 11:00 11-Dec-23 14:00 ATCO Outage 863s 902T (863s Paintearth) protection upgrade, Commission new wiring/Transformer protection, and new Transformer protection panel 42.17 Days
Continuous		  
30-Oct-23 11:00 25-Mar-24 09:00 ATCO TE 863S 240kV Breaker Relays, 863S 25kV Breaker Relays disable all breaker fail protection for the duration of the project 146.92 Days
Continuous		  
30-Oct-23 11:00 25-Mar-24 09:00 ATCO TE 863S 240kV Bus Relays disable/disconnect 900BS1 protection to remove old 900BS1 panel, and install new 900BS1 protection panel 146.92 Days
Continuous		  
30-Oct-23 11:00 03-Nov-23 12:00 ALTALINK Outage 368s 722X (368s Burdett), 722L (107s Westfield - 368s Burdett) Protection and CT work on 368s722X for A line protection, and to inegrate A87/138B CT contributions 4.04 Days
Continuous		  
30-Oct-23 11:00 31-Oct-23 17:30 ATCO TE 898s Protection & Control (898s Heart Lake) completing firmware updates 30.5 Hours
Continuous		  
30-Oct-23 12:30 09-Nov-23 17:30 ALTALINK Outage 283s T1 (283s Violet Grove) clean corrosive Sulphur, replace 138kV standoff insulators, replace conservator valve 10.25 Days
Continuous		  
30-Oct-23 12:30 02-Nov-23 16:30 ALTALINK RB 501CL (983s Cadomin - 501L tap), 501L (426s Coalspur - 501CL tap) component replacement's 501L (Str's Range 1 -281) 3.17 Days
Continuous		  
30-Oct-23 13:00 03-Nov-23 17:00 ALTALINK RB 150AL(271s-180s-42s-20s) RB-LL line clearance (STR 10-19) 4.17 Days
Daily		  
30-Oct-23 13:00 01-Nov-23 10:00 ALTALINK Outage 799s T1 (799s Coleman) connect mobile VR to 799sT1 (Tx18241) for supporting Fortis load 1.88 Days
Continuous		  
30-Oct-23 14:00 30-Oct-23 15:00 ATCO TE ATCO Telecom Equipment, 727s RTU/SCADA (727s Kinuso) narrows creek SAR OS upgrade 60 Mins
Continuous		  
30-Oct-23 14:00 30-Oct-23 18:30 ATCO TE 898s Heart Lake RTU/SCADA password update station controller/ RTU config. push 4.5 Hours
Continuous		  
31-Oct-23 07:00 31-Oct-23 13:00 ALTALINK Outage 65s 753E (65s High River), 753L (65s High River - 253s Blackie) Breaker Trip and CT Circuit Cut-Over, wire breaker status to B87/138, CT Loop, Saturation and Trip Test via B87/138 and 752 BF Relays 6 Hours
Daily		  
31-Oct-23 07:00 31-Oct-23 17:00 EPCOR Outage 557s CD2401 (557s Castle Downs) CD2401: NAIT Tour - Switching Demonstration for EET (2 Groups, morning and afternoon) 10 Hours
Continuous		  
31-Oct-23 07:30 01-Nov-23 17:00 ALTALINK TE 526s Protection & Control (526s Buffalo Creek) Upgrade all cards in B87/50/51/51NN/T1 & B87/50/51/51NN/T2 relays. Redundant protection always in service. 1.4 Days
Daily		  
31-Oct-23 07:30 01-Nov-23 17:00 ALTALINK TE 602s Protection & Control (602s Cold Creek) upgrade all cards 1.4 Days
Daily		  
31-Oct-23 08:00 31-Oct-23 17:30 ATCO TE 840s Protection & Control (840s McNeill Station) remove PQM at 840s McNeill to investigate voltage transients and harmonics 9.5 Hours
Continuous		  
31-Oct-23 08:00 08-Nov-23 17:00 ALTALINK Outage 763AL (447s Enchant - 763L tap), 763L (158s Vauxhall - 763AL tap), 763L (28s West Brooks - 763AL tap) Cutover and commission feeder protection from line breaker open status.
Installation of new line CVT at 447s which will be energized at the end of this outage.
Lowering conductors by 2 ft on 763AL151A/ 763A1L0. 		8.42 Days
Continuous		  
31-Oct-23 08:00 17-Jan-24 16:00 ENMAX Outage 1.82L (SS-1 - SS-5) 1.82L duct bank and electrical tie in 78.38 Days
Continuous		  
31-Oct-23 08:00 17-Jan-24 16:00 ENMAX Outage 1.84L (SS-1 - SS-5) 1.84L breaker only outage for initial 1.82L duct bank tie in 78.38 Days
Continuous		  
31-Oct-23 08:00 31-Oct-23 15:00 ALTALINK TE AltaLink Telecom Equipment to complete a node addition at 604s Granum. Affects only one TPR channel of 180L, 725L RAS for 15 minutes and 1005L for 2 minutes, redundant channel remains in service. supervisory from 604s to ACC/AECC will be lost for 2 hrs. All other channels will be re-routed in 50ms. 7 Hours
Daily		  
31-Oct-23 08:00 31-Oct-23 17:00 ALTALINK TE 510s Protection & Control (510s Sunnybrook) Perform relay maintenance on 25SR/3652 & 25SR/3552. No redundancy. Perform relay maintenance on 1241L B87/R3N. Redundant protection always in service. 9 Hours
Daily		  
31-Oct-23 08:00 31-Oct-23 12:00 ENMAX TE RTU/SCADA (SS-2) Transfer all IP data (SCADA, Security Camera/Access, Corp. LAN, Revenue Meter) in Ring 1 4 Hours
Continuous		  
31-Oct-23 08:00 31-Oct-23 16:00 ENMAX Outage 14.2C (SS-14), 14.1C (SS-14) investigate 14CS138-14.1CAP fusing issue 8 Hours
Continuous		  
31-Oct-23 08:00 31-Oct-23 12:00 ENMAX Outage 3.3TR (SS-3) LV breaker maintenance 3B8-3.3TR 4 Hours
Continuous		  
31-Oct-23 08:00 31-Oct-23 16:00 ALTALINK TE AltaLink Telecom Equipment IRU issue on 9038R - 9089R radio, replace component and upgrade software. All TPR/RAS/RTU circuits re-routed with 50 mSec outage. 8 Hours
Daily		  
31-Oct-23 08:00 10-Nov-23 15:00 ALTALINK TE AltaLink Telecom Equipment Add new fibre path to system between 9269R Whitecourt Radio and 338s Cherhill. All circuits re-routed on microwave system with 50 mSec outage 10.33 Days
Continuous		  
31-Oct-23 08:00 31-Oct-23 17:00 ALTALINK TE 510s Protection & Control (510s Sunnybrook) techs to block the 1239L relays for EPCOR work at remote end. 9 Hours
Daily		  
31-Oct-23 08:01 11-Nov-23 18:00 ATCO, SUNCOR Outage 29PL9-1 (29EDD-1 Millennium - 848s Ruth Lake), 29EDD-1 29EDD1s452 (29EDD-1 Millennium), 29EDD-1 29EDD1s552 (29EDD-1 Millennium) BP-29PL9-1 A & B protection retrofit and associated pre-commissioning / commissioning. 260kV ring bus will remain open for line protection retrofit scope of work. (Outage #1b) 11.46 Days
Continuous		  
31-Oct-23 08:30 31-Oct-23 17:30 ALTALINK Outage 294s T1 (294s Brazeau Outlet Works) change H2 bushing 9 Hours
Daily		  
31-Oct-23 09:00 11-Dec-23 12:00 ATCO TE 855s Protection & Control (855s Hamburg) open PT disconnects for isolation 41.17 Days
Continuous		  
31-Oct-23 09:30 31-Oct-23 15:30 ATCO RB 9L990 (72s Leismer - 2049s Kettle River) Altalink request for COG/Advice on reclosing blocked on 9L990 for 240kV breaker maintenance 6 Hours
Continuous		  
31-Oct-23 09:30 31-Oct-23 15:30 ALTALINK Outage 72s 752 (72s Leismer) 240kV breaker maintenance 6 Hours
Daily		  
31-Oct-23 10:00 31-Oct-23 17:00 ATCO TE ATCO Telecom Equipment replace Cassils_S SAR A chassis 7 Hours
Continuous		  
31-Oct-23 10:00 02-Nov-23 12:00 ATCO TE 795s Protection & Control (795s Zama) Work under GOI 2-00078043 to change relay 701T status contact at breaker 504 2.08 Days
Continuous		  
31-Oct-23 13:00 31-Oct-23 18:00 ALTALINK Outage 65s 434 (65s High River), 434L (65s High River - 237s Foothills) Breaker Trip and CT Circuit Cut-Over, wire breaker status to B87/138, CT Loop, Saturation and Trip Test via B87/138 and 752 BF Relays 5 Hours
Daily		  
31-Oct-23 13:00 31-Oct-23 15:00 SUNCOR TE Suncor RTU/SCADA (Suncor) BP-Annual SDC main control center (MCC) and backup control center (BCC) failover testing 2 Hours
Continuous		  
01-Nov-23 07:00 14-Nov-23 18:00 ALTALINK Outage 926L (17s Benalto - 310p Sundance) GOI is required for the new line location of 926L. Crews will be working between 926L structure 8-13 and will install new towers and conductor and complete the cut over from old alignment to new alignment 13.5 Days
Continuous		  
01-Nov-23 07:00 05-Nov-23 17:00 ALTALINK Outage 786L (799s Coleman - BCH Natal) Outage on 786L for ‘A’ and ‘B’ line protection upgrade. 4.46 Days
Continuous		 AB-BC
01-Nov-23 07:00 02-Nov-23 18:00 ALTALINK TE 799s Protection & Control (799s Coleman) auto. synch & 170L protection outages(A21/79/L2 & B21/L2) required on 1.46 Days
Continuous		  
01-Nov-23 07:00 02-Nov-23 18:00 ALTALINK TE 799s Protection & Control (799s Coleman) 138kV Bus VT PT3 outage required on PT3 secondaries circuits 1.46 Days
Continuous		  
01-Nov-23 07:00 01-Nov-23 13:00 ALTALINK Outage 65s T1 (65s High River), 65s 13N (65s High River), 13L (65s High River - 392s Black Diamond) Breaker Trip and T1 CT Circuit Cut-Over, CT Loop, Saturation, wire breaker status to B87/138 and and Trip Test 65s13N via B87/138 and 752 BF Relays 6 Hours
Daily		  
01-Nov-23 07:00 05-Nov-23 17:00 BCH, ALTALINK IO 1L275 (799s Coleman - BCH Natal), 786L (799s Coleman - BCH Natal) 'A’ and ‘B’ line protection upgrade 4.46 Days
Continuous		  
01-Nov-23 07:30 14-Jan-24 17:30 ALTALINK RB 922L (17s Benalto - 310p Sundance) recloser block required due to common tower with 926L 74.46 Days
Continuous		  
01-Nov-23 08:00 01-Nov-23 18:00 Syncrude TE Syncrude ICCP Outage SCADA - server update
10 Hours
Daily		  
01-Nov-23 08:00 01-Nov-23 16:00 ALTALINK TE 65s Protection & Control (65s High River) 138kV Bus 'A' relay will be removed from service to cut-over T1 & T2 CT circuit 8 Hours
Daily		  
01-Nov-23 08:00 02-Nov-23 16:00 ENMAX Outage 26.2TR (SS-26) CT Terminal Block Replacement 1.33 Days
Continuous		  
01-Nov-23 08:00 01-Nov-23 18:00 ALTALINK Outage 305s 138kV Bus 2 (305s Acheson), 305s Protection & Control (305s Acheson), 305s 677 (305s Acheson), 305s 453 (305s Acheson), 305s T2 (305s Acheson), 305s 1152 (305s Acheson) maintenance 10 Hours
Daily		  
01-Nov-23 08:00 01-Nov-23 17:00 ALTALINK TE 310p Protection & Control (310p Sundance) perform relay maintenance on A96/1552 & A96/1852 9 Hours
Daily		  
01-Nov-23 08:00 01-Nov-23 17:00 ALTALINK TE AltaLink Telecom Equipment, 359s RTU/SCADA (359s Esso West Pembina) upgrade MPLS node 9 Hours
Daily		  
01-Nov-23 08:00 01-Nov-23 17:00 ATCO TE ATCO Telecom Equipment T1 patch Livock Tribs between VHills_t & Whitecourt_T to go through fox creek carrier 9 Hours
Continuous		  
01-Nov-23 08:00 01-Nov-23 12:00 ENMAX TE RTU/SCADA (SS-31) transfer all IP data in ring 1 4 Hours
Continuous		  
01-Nov-23 08:00 01-Nov-23 12:00 ENMAX Outage 3.4TR (SS-3) LV breaker maintenance 3B8-3.4TR 4 Hours
Continuous		  
01-Nov-23 08:30 01-Nov-23 16:30 ALTALINK Outage 256s C1 (256s Harmattan) replace capacitor 8 Hours
Daily		  
01-Nov-23 09:00 01-Nov-23 17:00 ATCO TE 2011s RTU/SCADA (2011s Dawes) low bes firewall install 8 Hours
Continuous		  
01-Nov-23 09:00 01-Nov-23 17:00 ATCO TE 970s RTU/SCADA (970s Bourque) low bes checkpoint firewall installs 8 Hours
Continuous		  
01-Nov-23 10:00 01-Nov-23 17:00 ATCO TE ATCO Telecom Equipment replace Cassils_S SAR B chassis 7 Hours
Continuous		  
01-Nov-23 10:00 01-Nov-23 14:00 ATCO TE ATCO Telecom Equipment coordinate cutover of three services with AML NOC
 4 Hours
Continuous		  
01-Nov-23 10:00 01-Nov-23 17:00 ALTALINK TE 250p Protection & Control (250P Bighorn Plant) battery replacement 7 Hours
Daily		  
01-Nov-23 10:01 06-Nov-23 08:59 ALTALINK Outage 799s T1 (799s Coleman) connect mobile VR to 799s181E for supporting Fortis load 5 Days
Continuous		  
01-Nov-23 12:00 03-Nov-23 16:00 ENMAX Outage 24.82L (SS-24 - SS-65), 24B138-24.82 (SS-24), 65MD138-24.82 (SS-65) Surge Arrestor Replacement 24B138-24.82 2.17 Days
Continuous		  
01-Nov-23 12:00 01-Nov-23 16:00 ENMAX TE RTU/SCADA (SS-32) transfer all IP data in ring 1 4 Hours
Continuous		  
01-Nov-23 13:00 01-Nov-23 18:00 ALTALINK Outage 65s T2 (65s High River) T2 CT Circuit Cut-Over, CT Loop and Saturation 5 Hours
Daily		  
02-Nov-23 07:00 03-Nov-23 17:00 EPCOR Outage T2 (Namao) Namao: TX2 Breaker Fail Upgrade Cutovers 1.42 Days
Continuous		  
02-Nov-23 07:00 02-Nov-23 13:00 ALTALINK Outage 65s T3 (65s High River) T3 CT Circuit Cut-Over, CT Loop and Saturation 6 Hours
Daily		  
02-Nov-23 07:00 02-Nov-23 18:00 ALTALINK Outage 37s T5 (37s North Calder) Replace the temporary auxiliary TX on T5 and complete bonding to new ground loop installed by others. 11 Hours
Daily		  
02-Nov-23 07:30 02-Nov-23 12:30 ALTALINK TE 65s Protection & Control (65s High River) 138kV Bus 'A' Relay will be removed from service to cut-over T3 CT circuit (A and B Prot must be taken out of service simultaneously). No redundant protection available. 5 Hours
Daily		  
02-Nov-23 08:00 02-Nov-23 17:00 ALTALINK TE 412s Protection & Control (412s Shell Eagle Creek) Relay maintenance on the following redundant relays for T1, S51NN-2/T1 CO8, S50/51A/T1 CO8, S50/51B/T1 CO8, S50/51C/T1 CO8, S50/51N/T1 CO8, S51NN-1/T1 CO8. Also meter replacement on 412s T1 9 Hours
Daily		  
02-Nov-23 08:00 02-Nov-23 16:00 ENMAX Outage 23.3TR (SS-23) 23.3TR settings changes 8 Hours
Continuous		  
02-Nov-23 08:00 02-Nov-23 17:00 ALTALINK TE 525s RTU/SCADA (525s Carseland) Techs to investigate why the RTU data concentrator is randomly power cycling on site. Short 10 minute supervisory/visibility outages may be required. Tech will also be troubleshooting Meter remote meter communication for 261L Metering Equipment, 265L Metering Equipment 9 Hours
Daily		  
02-Nov-23 09:00 03-Nov-23 18:00 ALTALINK Outage 691L (74s Janet - 419s Chestermere) 691L FRM component replacement 1.38 Days
Continuous		  
03-Nov-23 07:00 06-Nov-23 18:00 ALTALINK Outage 1082L (63s Red Deer - 287s Hazelwood), 63s 2652 (63s Red Deer), 63s 2752 (63s Red Deer), 63s 1082 (63s Red Deer) capital replacements at str’s 1, 2, 52, 53, 60 3.5 Days
Continuous		  
03-Nov-23 07:00 06-Nov-23 18:00 ALTALINK RB 648L (63s Red Deer - 580s Sylvan Lake) safety concerns, close proximity to 648L 3.5 Days
Daily		  
03-Nov-23 07:00 06-Nov-23 18:00 ALTALINK RB 925L (63s Red Deer - 74s Janet) safety concerns, close proximity to 925L 3.5 Days
Daily		  
03-Nov-23 08:00 07-Nov-23 17:00 ATCO RB 7L65 (709s Vegreville - 7LA65 tap), 7L65 (710s Vermilion - 7LA65 tap) 7L65 Phase 2 rebuild - 7L129 circuit cutover to new DC structures, installing new structures, salvage existing structures 4.42 Days
Continuous		  
03-Nov-23 08:00 07-Nov-23 19:30 ATCO Outage 7L129 (710s Vermilion - 7LA129 tap) 7L65 Phase 2 rebuild - cutover 7L129 to new DC structures, install new str 618, 621, 622, salvage existing structures 4.52 Days
Continuous		  
03-Nov-23 08:00 03-Nov-23 12:00 ENMAX Outage 162B240-RB134 (SS-162) CT Terminal Block Replacement 4 Hours
Continuous		  
03-Nov-23 08:00 06-Nov-23 18:00 SUNCOR TE 29PL9-15 (29EDD-34 - 29EDD-56) connect 29PL9-15 CT/PT circuits to newly installed DFR relay 3.46 Days
Continuous		  
03-Nov-23 08:00 03-Nov-23 16:00 ENMAX Outage 47.1TR (SS-47) 47.1TR SEL-387E settings changes 8 Hours
Continuous		  
03-Nov-23 09:00 08-Nov-23 17:00 ALTALINK Outage 983s T1 (983s Cadomin), 501L (426s Coalspur - 501CL tap) fire mitigation structure 1-284 5.38 Days
Continuous		  
03-Nov-23 09:00 03-Nov-23 15:00 ATCO Outage 7L22 (811s Clairmont Lake - 7L88 tap), 811s 708 (811s Clairmont Lake), 7L22D2 (7L88 tap) top up oil and nitrogen level on the center phase pole 6 Hours
Continuous		  
03-Nov-23 12:00 03-Nov-23 16:00 ENMAX Outage 162B240-RB133 (SS-162) CT Terminal Block Replacement 4 Hours
Continuous		  

Prepared On:   2023-10-25   15:12:49

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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