Alberta Electric System Operator
System Co-ordination Plan
2025-01-23 to 2025-01-31
Approved Outages

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From To Owner Type Element Scheduled Activity Date/Time Comments Interconnection
05-Oct-18 08:00 30-Jun-26 16:00 EPCOR IO C2 (Rossdale) forced outage 2,825.33 Days
Continuous		  
24-Oct-18 01:13 30-Jun-26 16:00 EPCOR IO C1 (Rossdale) forced outage 2,806.62 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		  
26-Jul-24 10:00 31-Mar-25 16:00 ATCO Outage 826s 504R (826s Marguerite Lake) emergency removal to replace failed 502R @834S 248.25 Days
Continuous		  
12-Aug-24 08:00 14-Feb-25 16:00 ENMAX Outage 28.1TR (SS-28) 28.1TR transformer replacement 186.38 Days
Continuous		  
23-Aug-24 13:45 30-Apr-25 14:29 ALTALINK Outage 157s C1 (157s Lac La Biche) forced outage 250.03 Days
Continuous		  
23-Sep-24 10:00 15-May-25 12:00 ATCO TE 741s RTU/SCADA (741s Fox Creek) RTU configuration on new and old RTU's onsite 234.08 Days
Continuous		  
04-Oct-24 01:05 05-May-25 12:00 ATCO, ALTALINK Outage 840s McNeill Station, 830L (562s Cypress - 840s McNeill Station), 840s 701T (840s McNeill Station), 840s 901T (840s McNeill Station), 840s 702C (840s McNeill Station), 840s 703C (840s McNeill Station) forced outage 213.45 Days
Continuous		 AB-SK
05-Oct-24 00:00 30-Apr-25 17:00 BHE Canada Outage 120s C1 (120s Picture Butte) forced outage 207.71 Days
Continuous		  
21-Oct-24 10:00 03-Feb-25 14:00 ATCO Outage 741s 504C (741s Fox Creek), 741S 504 (741s ATC Fox Creek) oil sample required to verify PCB content, prior to completing breaker replacement 105.21 Days
Continuous		  
21-Oct-24 12:00 12-May-25 17:30 ATCO TE 741s Protection & Control (741s Fox Creek) block 144kv and 25 kv bus protection and breaker fail protection for the duration of 741s project 203.23 Days
Continuous		  
28-Oct-24 07:00 14-Feb-25 17:00 EPCOR TE EP 511s Protection & Control (EP 511s Victoria) protection blocking for protection upgrade and annual maintenance 109.46 Days
Continuous		  
08-Nov-24 16:00 07-Feb-25 17:00 EPCOR Outage 816s P2404 (816s Petrolia) P2404 vendor gas mixture repair 91.04 Days
Continuous		  
26-Dec-24 17:07 13-Feb-25 18:00 ALTALINK Outage 38s C1 (38s East Edmonton) forced outage 49.04 Days
Continuous		  
26-Dec-24 17:07 31-Jan-25 18:00 ALTALINK Outage 256s C1 (256s Harmattan) forced outage 36.04 Days
Continuous		  
03-Jan-25 07:00 07-Mar-25 17:00 EPCOR TE 805s Protection & Control (805s Jasper), 805s RTU/SCADA (805s Jasper) protection blocking for P&C maintenance at Jasper 63.42 Days
Continuous		  
06-Jan-25 07:00 24-Jan-25 17:00 EPCOR Outage 72MG16 (Garneau - Meadowlark), T2 (Garneau), G721 (Garneau), G725 (Garneau), G726 (Garneau), GDS17 (Garneau), GAB2 (Garneau), M725 (Meadowlark) garneau 72kv Switchgear SF6 overhaul 18.42 Days
Continuous		  
06-Jan-25 09:30 21-Jun-25 18:00 ALTALINK Outage 150L (42s Sarcee - 150AL tap), 42s 150W (42s Sarcee) arctic arrow will require a GOI on 150L to rebuild the section of line from structure 47-198. 166.31 Days
Continuous		  
07-Jan-25 07:00 23-Jan-25 19:00 ATCO RB 6L02 (769s Stettler - 873s Marion Lake), 6L02 (765s Mannix Mine - 873s Marion Lake), 6L02 (757s Battle River - 765s Mannix Mine) stringing of 9L68/9L86 for 1030230 CETO 16.5 Days
Continuous		  
13-Jan-25 07:00 07-Feb-25 17:00 EPCOR Outage T1 (Meadowlark) meadowlark tx1 bay outage 25.42 Days
Continuous		  
13-Jan-25 07:00 14-Mar-25 17:00 EPCOR Outage 987s T2 (987s Clover Bar), 987s C2406 (987s Clover Bar), 987s C2410 (987s Clover Bar), 987s C2409 (987s Clover Bar), 987s CC721 (987s Clover Bar), 987s CDS45 (987s Cloverbar), 987s CDS31 (987s Clover Bar) Cloverbar TX2 and 1191L bay outage 60.38 Days
Continuous		  
13-Jan-25 07:00 04-Apr-25 17:00 EPCOR TE 330p Protection & Control (330p Genesee), 330p RTU/SCADA (330p Genesee) Genessee - 138/500 kV protection blocking for relay maintenance and configuration changes 81.38 Days
Continuous		  
13-Jan-25 08:00 02-Feb-25 16:00 ENMAX Outage 2.83L (SS-13 - 2.83L tap), 3.84L (SS-3 - SS-13), 13.1TR (SS-13), 13.3TR (SS-13), 13B138-3.84 (SS-13), 13B138-2.83 (SS-13), 3B138-3.84 (SS-3), 13MD138-13.1TR (SS-13), 13MD138-13.3TR (SS-13) hv sw replacement 20.33 Days
Continuous		  
13-Jan-25 12:00 31-Jan-25 14:00 ATCO TE 820s Protection & Control (820s Hangingstone) PRC005 relay testing, all 144kV breaker fail relays 18.08 Days
Continuous		  
13-Jan-25 12:00 07-Feb-25 16:00 ATCO TE 905s Protection & Control (905s Meikle) testing breaker fail relays, 25.17 Days
Continuous		  
15-Jan-25 08:00 24-Jan-25 18:00 SUNCOR TE SUNCOR ICCP Outage (BP) Abin - SCADA site failover to switch between Suncor Main (SDC) and Backup control centers (BCC). this is to implement ICCP servers. (server migration from VM to Physical.)
 9.42 Days
Continuous		  
20-Jan-25 07:00 26-Jan-25 18:00 ATCO RB 9L20 (755s Cordel - 766s Nevis) HOP on 9L20 for remainder of construction on CETO project 6.46 Days
Continuous		  
20-Jan-25 07:00 31-Jan-25 17:30 ALTALINK TE 244s RTU/SCADA (244s Bowmanton) update RTU for voltage support project 11.44 Days
Daily		  
20-Jan-25 07:30 23-Jan-25 17:30 ATCO RB 9L1035 (244s Bowmanton - 2075s Newell) perform splicing on 1034L97 structure in existing canister for new fibre cable to 498s 3.42 Days
Continuous		  
20-Jan-25 07:30 23-Jan-25 17:30 ALTALINK RB 1034L (244s Bowmanton - 324s Cassils) perform splicing on 1034L97 structure in existing canister for new fibre cable to 498s 3.42 Days
Daily		  
20-Jan-25 07:30 23-Jan-25 17:30 ATCO, ALTALINK RB 1035L (244s Bowmanton - 2075s Newell) perform splicing on 1034L97 structure in existing canister for new fibre cable to 498s 3.42 Days
Daily		  
20-Jan-25 07:30 23-Jan-25 16:30 ENMAX, ALTALINK Outage 918L (281s Johnson - SS-162), 162B240-RB132 (SS-162), 162B240-RB133 (SS-162), 162MD240-918L (SS-162) 162 substation -surge arrester addition 3.38 Days
Continuous		  
20-Jan-25 08:00 31-Jan-25 16:00 ENMAX Outage 16.60L (SS-16 - SS-34), 16B69-16.60 (SS-16), 34B69-16.60 (SS-34) 16 & 34 Sub 16.60 line protection replacement 11.33 Days
Continuous		  
20-Jan-25 08:00 10-Feb-25 17:00 ATCO IO 809s RTU/SCADA (809s Louise Creek) station controller (RTU) requires a firmware upgrade for CIP compliance 21.38 Days
Continuous		  
20-Jan-25 08:00 23-Jan-25 16:00 ENMAX, ALTALINK Outage 918L (281s Johnson - SS-162), 162B240-RB132 (SS-162), 162B240-RB133 (SS-162), 162MD240-918L (SS-162) 162 substation -surge arrester addition 3.33 Days
Continuous		  
20-Jan-25 08:00 23-Jan-25 16:00 ENMAX Outage 9.2TR (SS-9) relay protection test 3.33 Days
Continuous		  
20-Jan-25 09:00 24-Jan-25 17:30 ATCO TE 963s Protection & Control (963s Coyote Lake), 963s RTU/SCADA (963s Coyote Lake) 7L128 DLR project

SCADA updates

 4.35 Days
Continuous		  
20-Jan-25 09:30 24-Jan-25 17:30 ATCO TE 774s Protection & Control (774s Monitor) relay testing 4.33 Days
Continuous		  
20-Jan-25 09:30 24-Jan-25 17:30 ATCO TE 813s Protection & Control (813s Little Smoky) PRC-005 - aux trip relay testing 4.33 Days
Continuous		  
20-Jan-25 10:00 24-Jan-25 12:00 ATCO Outage 741s 701T (741s Fox Creek), 741s 701 (741s ATC Fox Creek), 741s 702 (741s ATC Fox Creek), 741s 702T (741s Fox Creek), 741s 703 (741s ATC Fox Creek), 741s 704 (741s ATC Fox Creek), 741s 705C (741s Fox Creek), 741s 705 (741s ATC Fox Creek), 7L90 (741s ATC Fox Creek - 7LA90 tap), 7L199 (347s AML Fox Creek - 741s ATC Fox Creek) install new 144kV PT to 144kV bus in a new location 4.08 Days
Continuous		  
20-Jan-25 10:00 23-Jan-25 16:30 ATCO, ALTALINK Outage 7L129 (526s Buffalo Creek - 7LA129 tap) replace structures, cross arms and insulators on 7L129 3.27 Days
Continuous		  
20-Jan-25 10:00 23-Jan-25 16:30 ATCO, ALTALINK Outage 7L129 (526s Buffalo Creek - 7LA129 tap), 526s 152 (526s Buffalo Creek) replace structures, cross arms and insulators on 7L129 3.27 Days
Continuous		  
20-Jan-25 10:00 23-Jan-25 16:00 ATCO TE 751s Protection & Control (751s Hill) 701T and 702T relay testing 3.25 Days
Continuous		  
20-Jan-25 12:00 24-Jan-25 16:00 ATCO TE 2049s Protection & Control (2049s Kettle River), 2049s RTU/SCADA (2049s Kettle River) update 240kv transformer protection relays 4.17 Days
Continuous		  
20-Jan-25 14:00 27-Jan-25 10:00 ATCO Outage 7L23 (796s Nipisi - 7L23 tap), 7L23 (732s Mitsue - 7L23 tap), 796s 702 (796s Nipisi), 858S 701TD (858s Narrows Creek) complete CAR cross arm replacements & TCM wood pole replacements 6.83 Days
Continuous		  
21-Jan-25 08:30 26-Jan-25 16:00 ATCO TE 801s Protection & Control (801s Anderson), 801s RTU/SCADA (801s Anderson) Relay Firmware upgrades and relay testing on relays 21B/7L85, 50BF/704, 50BF/705, 50BF/711, 87BA/700BS1 5.31 Days
Continuous		  
21-Jan-25 09:00 26-Jan-25 16:00 ATCO Outage 9L10 (876s Brintnell - 939s Livock) line to ground mitigation 5.29 Days
Continuous		  
22-Jan-25 08:00 23-Jan-25 16:00 ENMAX Outage 33.84L (SS-33 - SS-43), 33.2TR (SS-33), 33B138-33.84 (SS-33), 43B138-33.84 (SS-43), 33MD138-33.2TR (SS-33) HV SW maintenance, oil sampling MT, TC, check reversing switch 1.33 Days
Continuous		  
22-Jan-25 08:00 23-Jan-25 17:00 ATCO TE 809s Protection & Control (809s Louise Creek) 21B/7L55 firmware upgrade 1.38 Days
Continuous		  
22-Jan-25 08:00 23-Jan-25 17:00 ATCO TE 809s Protection & Control (809s Louise Creek) 51NGR/902T firmware upgrade 1.38 Days
Continuous		  
22-Jan-25 08:00 23-Jan-25 16:00 ENMAX TE Protection & Control (SS-7) 7sub C30 138kV auto switching protection outage. relay protection test - 7RLY138-7.ASW 1.33 Days
Continuous		  
22-Jan-25 09:00 24-Jan-25 17:30 ATCO TE 7LA128 (572s Highland - 7L128 tap) SCADA updates- change internal RAS alarm logic in SCADA program 2.35 Days
Continuous		  
22-Jan-25 09:00 23-Jan-25 16:00 ATCO TE 820s Protection & Control (820s Hangingstone) PRC005 relay testing on 7L36 A&B 31 Hours
Continuous		  
23-Jan-25 07:00 23-Jan-25 17:00 EPCOR Outage 72RV4 (EP 511s Victoria - Rossdale), RV726 (Rossdale) breaker maintenance 10 Hours
Continuous		  
23-Jan-25 07:30 23-Jan-25 15:00 ENMAX, ALTALINK IO 50L (44s Bearspaw Plant - SS-21) adjust blade/jaw on west & east phase on SW89 at SS-21 7.5 Hours
Daily		  
23-Jan-25 08:00 23-Jan-25 14:00 Lethbridge TE 593s Protection & Control (593s Lakeview) cutover SCADA points 6 Hours
Continuous		  
23-Jan-25 08:00 23-Jan-25 15:00 ENMAX, ALTALINK Outage 50L (44s Bearspaw Plant - SS-21), 21.1C (SS-21), 21.2TR (SS-21), 44s 50X (44s Bearspaw Plant), 60s50 (SS-21) adjust blade/jaw on west & east phase on SW89 at SS-21 7 Hours
Continuous		  
23-Jan-25 09:00 23-Jan-25 19:00 ATCO TE ATCO Telecom Equipment Holden telecom
full building equipment cutover		 10 Hours
Continuous		  
23-Jan-25 09:00 24-Jan-25 16:00 ATCO TE 905s Protection & Control (905s Meikle) PRC 21A/7L131, 21B/7L131 relay testing
 31 Hours
Continuous		  
23-Jan-25 09:00 23-Jan-25 16:00 SUNCOR TE 635EDD-1000 RTU/SCADA (635EDD-1000), 635EDD-1001 RTU/SCADA (635EDD-1001), 635EDD-1002 RTU/SCADA (635EDD-1002), 635EDD-1003 RTU/SCADA (635EDD-1003) update firewall rules and switch settings 7 Hours
Continuous		  
23-Jan-25 10:00 24-Jan-25 16:00 ATCO TE 931s Protection & Control (931s Bohn), 931s RTU/SCADA (931s Bohn) update 701T transformer protection relay wiring non electrical circuits 30 Hours
Continuous		  
23-Jan-25 14:00 23-Jan-25 18:00 ALTALINK Outage 62s T1 (62s Brazeau Plant), 62s 1 (62s Brazeau Plant) maintenance 4 Hours
Daily		  
24-Jan-25 07:00 24-Jan-25 17:00 EPCOR Outage 987s GB1B (987s Clover Bar) relay maintenance 10 Hours
Continuous		  
24-Jan-25 07:00 24-Jan-25 17:30 ALTALINK RB 729L (40s Wetaskiwin - 729AL tap), 729L (542s Ervick - 729AL tap), 729L (285s East Camrose - 542s Ervick) install new tap on 729L Structure 143 10.5 Hours
Daily		  
24-Jan-25 08:00 25-Jan-25 17:00 ATCO TE 809s Protection & Control (809s Louise Creek) 21B/7L43, 21B/9L05, firmware upgrade firmware upgrade 1.38 Days
Continuous		  
24-Jan-25 08:00 24-Jan-25 18:00 ATCO TE 813s Protection & Control (813s Little Smoky) 21A_50BF/7L90 and 21B_50BF/7L90 protections at 813s to be isolated one a time to remove temporary settings for 741s mobile sub 10 Hours
Continuous		  
24-Jan-25 09:00 24-Jan-25 16:00 ATCO Outage 7L50 (757s Battle River - 491L tap), 757s 709 (757s Battle River) 7L50 pole replacement structure 214 7 Hours
Continuous		  
24-Jan-25 09:00 24-Jan-25 15:00 BCH Outage T1 (BCH Natal), 13CX1 (BCH Natal) add oil to the conservater BC maintenance does not affect the Alberta ATC 6 Hours
Continuous		 AB-BC
24-Jan-25 12:01 29-Jan-25 17:00 ATCO Outage 7L56 (725s Goose River - 738s Virginia Hills) replacing cross arms and poles at various structures 5.21 Days
Continuous		  
24-Jan-25 12:01 03-Feb-25 12:00 ATCO Outage 741s 701T (741s Fox Creek), 741s 702T (741s Fox Creek), 741s 703 (741s ATC Fox Creek), 741s 704 (741s ATC Fox Creek) 25kV Bus outage to perform switch replacement 10 Days
Continuous		  
25-Jan-25 07:00 25-Jan-25 17:00 EPCOR Outage T3 (Garneau) low gas GT3 breaker 10 Hours
Continuous		  
25-Jan-25 08:00 09-Feb-25 16:00 ENMAX Outage 7.84L (SS-7 - SS-36), 7B138-7.84 (SS-7), 36B138-7.84 (SS-36) 36B138-7.84 H145A2752 breaker major overhaul 15.33 Days
Continuous		  
25-Jan-25 08:00 21-Feb-25 16:00 ENMAX TE Protection & Control (SS-28) 28 sub Z31 138 kV bus differential protection outage - commission 28.1TR protection 27.33 Days
Daily		  
25-Jan-25 08:00 21-Feb-25 16:00 ENMAX TE Protection & Control (SS-28) 28 sub 138 kV autoswitching scheme outage - commission 28.1TR protection 27.33 Days
Daily		  
25-Jan-25 08:00 21-Feb-25 16:00 ENMAX TE Protection & Control (SS-28) 28 sub BMR-81 outage -commission 28.1TR protection 27.33 Days
Daily		  
25-Jan-25 08:00 21-Feb-25 16:00 ENMAX TE Protection & Control (SS-28) 28PT138-Z31 sec. outage - commission 28.1TR protection 27.33 Days
Daily		  
26-Jan-25 06:00 26-Jan-25 18:00 ENMAX Outage 38.83L (SS-38 - SS-39) Iconic Power to change a street light pole beside the line 12 Hours
Continuous		  
26-Jan-25 08:00 27-Jan-25 17:00 ATCO TE 809s Protection & Control (809s Louise Creek) 87B/900BS1, 21B/9L938, firmware upgrade 1.38 Days
Continuous		  
26-Jan-25 08:00 29-Jan-25 14:00 ENMAX Outage 33.2TR (SS-33) grounding improvements 3.25 Days
Continuous		  
27-Jan-25 07:00 03-Feb-25 18:00 ATCO RB 9L20 (755s Cordel - 766s Nevis) facilitate various construction activities on CETO 7.46 Days
Continuous		  
27-Jan-25 07:00 14-Feb-25 17:00 EPCOR Outage 72RG1 (Garneau - Rossdale), T2 (Garneau), G724 (Garneau), G725 (Garneau), G726 (Garneau), RG7210 (Rossdale) TX2/RG1 zone- 72 kV switchgear SF6 overhaul with GE 18.42 Days
Continuous		  
27-Jan-25 07:00 27-Jan-25 17:00 EPCOR Outage 72RV6 (EP 511s Victoria - Rossdale), RV722 (Rossdale) breaker maintenance 10 Hours
Continuous		  
27-Jan-25 07:00 28-Jan-25 17:00 EPCOR Outage 72CN10 (987s Clover Bar - Namao), 987s CN723 (987s Clover Bar), N724 (Namao) disconnect and relay maintenance 1.42 Days
Continuous		  
27-Jan-25 07:00 29-Jan-25 17:00 ALTALINK TE 77s Protection & Control (77s Sagitawah) replace antenna/connector at 9269R Whitecourt radio facing 77s Sagitawah 2.42 Days
Daily		  
27-Jan-25 08:00 06-Feb-25 17:00 ALTALINK RB 610L (83s Taber - 336s Fincastle) setting structures adjacent to existing 610L (str 1-102) - proximity for VATD project 10.38 Days
Daily		  
27-Jan-25 08:00 30-Jan-25 17:30 ATCO RB 7L09 tap change rotten cross arms and poles using live line techniques 3.4 Days
Continuous		  
27-Jan-25 08:00 29-Jan-25 16:00 ENMAX Outage 38.83L (SS-38 - SS-39), 38.3TR (SS-38), 38.1TR (SS-38), 38.1C (SS-38), 38MD138-38.3TR (SS-38), 39B138-38.83 (SS-39), 38B138-38.83 (SS-38) HV switch maint. 2.33 Days
Continuous		  
27-Jan-25 08:00 30-Jan-25 17:00 ALTALINK Trans Test 244s C1 (244s Bowmanton), 244s C2 (244s Bowmanton) new C1, C2 energize for load testing, one at a time, and multiple operations required 3.38 Days
Daily		  
27-Jan-25 08:00 27-Jan-25 17:00 ALTALINK TE 291s Protection & Control (291s Cochrane) remote setting change for Fortis on 51/79/81/L8 9 Hours
Daily		  
27-Jan-25 08:00 27-Jan-25 17:00 ALTALINK TE 373s Protection & Control (373s Madden) online setting change for Fortis on 191LE 51/51N/79/L1 & 191LW 50/51/79/81/L2 9 Hours
Daily		  
27-Jan-25 08:00 31-Jan-25 16:00 ENMAX, ALTALINK TE 21.80L (42s Sarcee - SS-21) 21.80L A and B line protection outage - relay protection end to end test 4.33 Days
Continuous		  
27-Jan-25 08:00 30-Jan-25 17:00 ALTALINK Trans Test 244s C3 (244s Bowmanton) new C3 energize for load testing. Multiple operations required. 3.38 Days
Daily		  
27-Jan-25 08:00 31-Jan-25 16:00 ENMAX, ALTALINK TE 21.80L (42s Sarcee - SS-21) 21.80L A and B line protection outage. relay protection end to end test 4.33 Days
Daily		  
27-Jan-25 09:00 30-Jan-25 17:00 ALTALINK TE 77s Protection & Control (77s Sagitawah) standard relay maintenance 3.33 Days
Daily		  
27-Jan-25 09:30 27-Jan-25 17:30 ATCO TE 892s Protection & Control (892s Ribstone Creek) relay testing 8 Hours
Continuous		  
27-Jan-25 09:30 27-Jan-25 14:30 ATCO Outage 7L137 (768s Rowley - 770s Three Hills), 770s 702 (770s Three Hills), 768s 703 (768s Rowley) breaker motor circuit relay replacement and test 5 Hours
Continuous		  
27-Jan-25 10:00 31-Jan-25 16:30 ATCO, ALTALINK Outage 7L129 (526s Buffalo Creek - 7LA129 tap), 526s 152 (526s Buffalo Creek) replace structures, cross arms and insulators on 7L129 4.27 Days
Continuous		  
27-Jan-25 10:00 03-Feb-25 08:00 ATCO Outage 7L32 (813s Little Smoky - 862s South Bezanson) changing rotten cross arms and poles 6.92 Days
Continuous		  
27-Jan-25 10:00 31-Jan-25 16:30 ATCO, ALTALINK Outage 7L129 (526s Buffalo Creek - 7LA129 tap) replace structures, cross arms and insulators on 7L129 4.27 Days
Continuous		  
27-Jan-25 10:00 31-Jan-25 16:00 ATCO TE 721s Protection & Control (721s La Corey) relay testing, arc flash settings update 4.25 Days
Continuous		  
27-Jan-25 10:00 30-Jan-25 16:00 ATCO TE 709s Protection & Control (709s Vegreville) PRC-005 - relay testing 3.25 Days
Continuous		  
27-Jan-25 10:00 28-Jan-25 17:00 ALTALINK TE 74s RTU/SCADA (74s Janet) substation computer final commissioning and LAN configuration change 31 Hours
Daily		  
27-Jan-25 10:00 27-Jan-25 11:00 ALTALINK TE 159s Protection & Control (159s Colinton) settings change 60 Mins
Daily		  
27-Jan-25 11:00 29-Jan-25 17:00 ALTALINK TE 285s Protection & Control (285s East Camrose) implement fault reporting on 729L B21/L10 & 730L B21/67N/L9 2.25 Days
Daily		  
27-Jan-25 11:00 29-Jan-25 17:00 ALTALINK TE 285s RTU/SCADA (285s East Camrose) configuration update to implement fault reporting on 729L B21/L10 & 730L B21/67N/L9 2.25 Days
Daily		  
27-Jan-25 11:30 27-Jan-25 14:00 ALTALINK TE 183s Protection & Control (183s Underwood) remote settings change to enable through fault settings 2.5 Hours
Daily		  
27-Jan-25 12:00 28-Jan-25 16:00 ATCO TE 977s Protection & Control (977s Salt Creek), 977s RTU/SCADA (977s Salt Creek) updates to 901T transformer protection relay, wiring updates to non electrical circuits 28 Hours
Continuous		  
27-Jan-25 12:00 28-Jan-25 16:00 ATCO TE 820s Protection & Control (820s Hangingstone) PRC005 relay testing on 7L97 A&B 28 Hours
Continuous		  
27-Jan-25 12:00 31-Jan-25 16:00 ATCO TE 951s Protection & Control (951s Thickwood Hills), 951s RTU/SCADA (951s Thickwood Hills) New SVS OT laptop remote log-in testing/commissioning various functionalities remotely with field site support, non outage functional testing to take place 4.17 Days
Continuous		  
27-Jan-25 12:30 31-Jan-25 17:30 ALTALINK Outage 190L (17s Benalto - 320p Keephills) Component replacement on 190L (STR24-417) 4.21 Days
Continuous		  
28-Jan-25 08:00 28-Jan-25 17:00 ALTALINK TE AltaLink Telecom Equipment upgrade software on radio hop to resolve SNR performance issues 9 Hours
Daily		  
28-Jan-25 08:00 28-Jan-25 17:00 ALTALINK TE AltaLink Telecom Equipment MPLS card replacement to resolve failing condition 9 Hours
Daily		  
28-Jan-25 08:00 28-Jan-25 17:00 ALTALINK TE 254s RTU/SCADA (254s Coaldale) download new configurations for the Comm monitor installation project 9 Hours
Daily		  
28-Jan-25 08:00 28-Jan-25 09:00 ALTALINK TE 191s Protection & Control (191s N.W. Cardiff) remote settings change to enable through fault settings change on A87/50/51/51N/T2 protection 60 Mins
Daily		  
28-Jan-25 08:30 28-Jan-25 13:00 ALTALINK Outage 551s T1 (551s Chevron Kaybob) take PCB oil samples from bushings of 551sT1, 551sT2, SS1 and bus PTs 4.5 Hours
Daily		  
28-Jan-25 08:30 29-Jan-25 17:00 ATCO RB 7L76 (786s High Level - 832s Blumenort) high load coming under the line at 7L76 STR 4, hot lift work 1.35 Days
Continuous		  
28-Jan-25 09:00 30-Jan-25 14:00 CUB, ALTALINK Outage 672s 901T (672s Fengate Co-Generation), 430s 589 (430s Ursus) customer to complete AESO compliance testing 2.21 Days
Daily		  
28-Jan-25 10:00 28-Jan-25 11:00 ALTALINK TE 207s Protection & Control (207s Pinedale) settings change 60 Mins
Daily		  
28-Jan-25 12:30 28-Jan-25 13:30 ALTALINK TE 234s Protection & Control (234s Fort Assiniboine) remote settings change to enable through fault settings change A87/50/51/51N/T1 protection 60 Mins
Daily		  
28-Jan-25 14:30 28-Jan-25 15:30 ALTALINK TE 127s Protection & Control (127s Bruderheim) remote settings change to enable through fault settings change A87/50/51/51N/T2 protection 60 Mins
Daily		  
28-Jan-25 16:30 28-Jan-25 17:30 ALTALINK TE 157s Protection & Control (157s Lac La Biche) remote settings change to enable through fault settings change on A87/50/51/T2 protection 60 Mins
Daily		  
28-Jan-25 17:00 28-Jan-25 18:00 ALTALINK TE AltaLink RTU/SCADA (AltaLink) RigSat needs to remotely upgrade satellite equipment 60 Mins
Daily		  
29-Jan-25 07:00 29-Jan-25 17:00 EPCOR Outage RR723 (Rossdale) breaker maintenance 10 Hours
Continuous		  
29-Jan-25 08:00 29-Jan-25 16:00 ALTALINK TE AltaLink Telecom Equipment replace faulty RAC card and upgrade software on radio hop 8 Hours
Daily		  
29-Jan-25 08:00 29-Jan-25 18:00 ATCO TE ATCO Telecom Equipment transfer the battery bank from the DC distribution to the unity rectifier
 10 Hours
Continuous		  
29-Jan-25 08:00 30-Jan-25 17:00 ALTALINK TE 198s RTU/SCADA (198s Blackfalds) RTU outage required for techs to replace the following device: LAN-ES2 Qualified switchman on site. A 1hour supervisory/visibility outage each day, during replacement of LAN-ES2 1.38 Days
Daily		  
29-Jan-25 08:00 29-Jan-25 09:00 ALTALINK TE 185s Protection & Control (185s Bretville) remote settings change to enable through fault settings change on A87/50/51/51N/T2 protection 60 Mins
Daily		  
29-Jan-25 08:00 29-Jan-25 09:00 ALTALINK TE 245s Protection & Control (245s Seebe) remote setting change to enable through fault protection 60 Mins
Daily		  
29-Jan-25 09:00 29-Jan-25 17:00 ATCO TE 933s Protection & Control (933s Tower Road), 933s RTU/SCADA (933s Tower Road) updates to 701T transformer protection relay, wiring updates to non electrical circuits 8 Hours
Continuous		  
29-Jan-25 09:30 29-Jan-25 17:30 ATCO TE 903s Protection & Control (903s Loyalist) relay testing 8 Hours
Continuous		  
29-Jan-25 10:00 30-Jan-25 16:00 ENMAX Outage 240kV West Bus (SS-25), 25B240-D136 (SS-25), 25B240-D133 (SS-25), 25B240-D142 (SS-25), 25B240-D139 (SS-25) due to clearance under 240 kV lower west bus to deliver cables 30 Hours
Continuous		  
29-Jan-25 10:00 29-Jan-25 14:00 ALTALINK, TRANSALTA Outage 250p T1 (250p Bighorn Plant) maintenance 4 Hours
Daily		  
29-Jan-25 10:00 29-Jan-25 11:00 ALTALINK TE 268s Protection & Control (268s Whitecourt) settings change 60 Mins
Daily		  
29-Jan-25 10:00 29-Jan-25 13:30 ALTALINK TE 254s Protection & Control (254s Coaldale) remote setting change to enable through fault protection 3.5 Hours
Daily		  
29-Jan-25 10:00 29-Jan-25 13:30 Lethbridge TE Lethbridge ICCP Outage firmware upgrades to firewall at primary and backup control centre
 3.5 Hours
Continuous		  
29-Jan-25 13:30 29-Jan-25 15:30 ALTALINK TE 283s Protection & Control (283s Violet Grove) settings change 2 Hours
Daily		  
29-Jan-25 14:30 29-Jan-25 17:30 ALTALINK TE 256s Protection & Control (256s Harmattan) remote setting change to enable through fault protection 3 Hours
Daily		  
29-Jan-25 16:30 29-Jan-25 17:30 ALTALINK TE 92s Protection & Control (92s Viscount) settings change 60 Mins
Daily		  
30-Jan-25 07:00 30-Jan-25 17:00 EPCOR Outage RR729 (Rossdale) Rossdale: RR729 Breaker 10 Hours
Continuous		  
30-Jan-25 08:00 31-Jan-25 16:00 ENMAX Outage 37.81L (SS-37 - SS-38), 38.2TR (SS-38), 38.3TR (SS-38), 38B138-37.81 (SS-38), 37B138-37.81 (SS-37) HV SW maintenance. 38SW81, 38SW82, 38SW83, MD-38.2TR. check reversing switch 38.2TR. 1.33 Days
Continuous		  
30-Jan-25 08:00 30-Jan-25 17:00 ALTALINK TE 198s Protection & Control (198s Blackfalds) perform relay maintenance 9 Hours
Daily		  
30-Jan-25 08:00 30-Jan-25 17:00 ALTALINK TE AltaLink Telecom Equipment flash card fail, requires replacement and software upgrade 9 Hours
Daily		  
30-Jan-25 08:00 30-Jan-25 17:00 ALTALINK TE 135s RTU/SCADA (135s Conrad) download new configurations for the comm monitor installation project 9 Hours
Daily		  
30-Jan-25 08:00 30-Jan-25 09:00 ALTALINK TE 255s Protection & Control (255s Vulcan) remote setting change to enable through fault protection 60 Mins
Daily		  
30-Jan-25 09:00 30-Jan-25 17:00 ATCO TE 856s Protection & Control (856s Kinosis), 856s RTU/SCADA (856s Kinosis) updates to 903T transformer protection relay, wiring updates to non electrical circuits 8 Hours
Continuous		  
30-Jan-25 09:00 30-Jan-25 12:00 ATCO Outage 709s 701 (709s Vegreville), 709s 701Ta (709s Vegreville) PRC-005 trip coil testing breaker 701, requires load transformer to 702T, 3 Hours
Continuous		  
30-Jan-25 09:00 30-Jan-25 15:00 ALTALINK Outage 237s 2252 (237s Foothills) urgent: 237s2252 gas top up. 6 Hours
Daily		  
30-Jan-25 09:00 30-Jan-25 15:00 ENMAX, ALTALINK RB 1106L (237s Foothills - SS-65) Altalink outage - 237s2252 gas top up 6 Hours
Continuous		  
30-Jan-25 09:30 04-Feb-25 17:30 ATCO TE 948s Protection & Control (948s Heatburg) relay testing- isolate relays as required on site 5.33 Days
Continuous		  
30-Jan-25 10:00 30-Jan-25 14:00 ALTALINK, TRANSALTA Outage 250p T2 (250p Bighorn Plant) maintenance 4 Hours
Daily		  
30-Jan-25 10:00 30-Jan-25 11:00 ALTALINK TE 257s Protection & Control (257s Hull) remote setting change to enable through fault protection 60 Mins
Daily		  
30-Jan-25 12:01 30-Jan-25 15:00 ATCO Outage 709s 702 (709s Vegreville), 709s 702T (709s Vegreville) PRC-005 trip coil testing breaker 702, requires load transformer to 701T 2.98 Hours
Continuous		  
30-Jan-25 12:30 30-Jan-25 15:30 ALTALINK TE 263s Protection & Control (263s Strachan) remote setting change to enable through fault protection 3 Hours
Daily		  
31-Jan-25 07:00 31-Jan-25 17:00 EPCOR TE Protection & Control (Namao), RTU/SCADA (Namao) protection blocking for SA upgrade 10 Hours
Continuous		  
31-Jan-25 09:00 31-Jan-25 16:00 ATCO TE 2014s Protection & Control (2014s Halfway) relay preventive maintenance 7 Hours
Continuous		  
31-Jan-25 09:00 31-Jan-25 17:00 ATCO TE 2011s Protection & Control (2011s Dawes), 2011s RTU/SCADA (2011s Dawes) updates to 901T transformer protection relay 8 Hours
Continuous		  

Prepared On:   2025-01-22   15:42:14

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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