Alberta Electric System Operator
System Co-ordination Plan
2024-03-29 to 2024-04-05
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		  
04-Jul-23 13:00 29-Mar-24 17:30 ATCO IO 840s McNeill Station PQM at 840s McNeill to investigate voltage transients and harmonics 269.19 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		  
05-Dec-23 08:30 29-Mar-24 17:00 EPCOR TE 330p Protection & Control (330p Genesee) Genesee - 138/500 kV protection blocking for repower project cut-overs 115.31 Days
Continuous		  
02-Jan-24 07:00 29-Mar-24 17:00 EPCOR TE 814s Protection & Control (814s Bellamy) annual relay maintenance 87.38 Days
Continuous		  
02-Jan-24 07:00 29-Mar-24 17:00 EPCOR TE Protection & Control (EPCOR Hardisty) Hardisty - protection blocking for annual relay maintenance 87.38 Days
Continuous		  
02-Jan-24 07:00 29-Mar-24 17:00 EPCOR TE 987s Protection & Control (987s Clover Bar) Cloverbar - protection blocking for annual relay maintenance 87.38 Days
Continuous		  
02-Jan-24 07:00 29-Mar-24 17:00 EPCOR TE 657s Protection & Control (657s Summerside) Summerside - protection blocking for annual relay maintenance 87.38 Days
Continuous		  
02-Jan-24 07:00 29-Mar-24 17:00 EPCOR TE 330p RTU/SCADA (330p Genesee) configuration changes and maintenance 87.38 Days
Continuous		  
02-Jan-24 07:00 29-Mar-24 17:00 EPCOR TE 330p Protection & Control (330p Genesee) Genesee - protection blocking for annual relay maintenance 87.38 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		  
12-Jan-24 07:00 01-Apr-24 17:00 EPCOR Outage 72CN10 (987s Clover Bar - Namao), N724 (Namao), 987s CN723 (987s Clover Bar) forced outage: pothead/cable failure 80.38 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 08:00 29-Mar-24 17:00 ALTALINK TE 15s Protection & Control (15s Fort Macleod) update settings and commission new RAS circuits 39.33 Days
Daily		  
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 07:00 17-Apr-24 17:00 EPCOR Outage 72CH11 (987s Clover Bar - EP Hardisty), H725 (EP Hardisty), 987s CH724 (987s Clover Bar) 72CH11 pothead leak mitigation 44.38 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 08:00 03-Apr-24 16:00 ENMAX Outage 15.60L (SS-15 - SS-21), 15B69-15.60 (SS-15), 21B69-15.60 (SS-21) line protection upgrade 16.33 Days
Continuous		  
18-Mar-24 08:00 01-Apr-24 18:00 SUNCOR Outage 29EDD-94 29PP-97 260kV Bus (29EDD-94 Voyageur), 29PL9-162 (29EDD-94 Voyageur - 951s Thickwood Hills), 29PL9-193 (29EDD-94 Voyageur - 951s Thickwood Hills) steel Inspection for 29PL9-162/193 A frame; 29PL9-24/25 A frame
 14.42 Days
Continuous		  
18-Mar-24 08:00 29-Mar-24 17:00 ALTALINK TE 244s RTU/SCADA (244s Bowmanton) updating RTU configuration for the Dunmore project 11.38 Days
Daily		  
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 09:00 29-Mar-24 12:00 ATCO RB 9L10 (876s Brintnell - 939s Livock) walk up and climbing inspection 7.13 Days
Continuous		  
22-Mar-24 09:00 29-Mar-24 12:00 ATCO RB 7L49 (729s Otauwau - 732s Mitsue) walk up and climbing inspection 7.13 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 06:00 29-Mar-24 18:00 ALTALINK Outage 799L (77s Sagitawah - 443s South Mayerthorpe) component and structure replacement 4.5 Days
Continuous		  
25-Mar-24 07:00 03-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 9.42 Days
Continuous		  
25-Mar-24 08:00 01-Apr-24 08:00 ENMAX Outage 54.1TR (SS-54) repair foundation leak 7 Days
Continuous		  
25-Mar-24 08:00 29-Mar-24 17:00 ALTALINK TE 535s RTU/SCADA (535s Joffre) download new configurations and make LAN modifications to add new SEL-2440s and LAN devices 4.38 Days
Continuous		  
25-Mar-24 10:00 03-Apr-24 15:00 ATCO TE 932s Protection & Control (932s Pemukan) relay work
 9.21 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		  
27-Mar-24 06:00 03-Apr-24 18:00 ALTALINK Outage 792L (150s Clyde - 191s N.W. Cardiff), 150s 792X (150s Clyde), 191s 792N (191s N.W. Cardiff) structure and component replacement 7.5 Days
Continuous		  
29-Mar-24 07:00 29-Mar-24 12:00 ATCO, ALTALINK Outage 7L230 (69s North Barrhead - 888AL tap), 888AL (234s Fort Assiniboine - 7L230 tap), 69s 230W (69s North Barrhead), 234s 888 (234s Fort Assiniboine) 1-2 poles on 7L230 that are leaning and could fall anytime 5 Hours
Daily		  
29-Mar-24 08:00 29-Mar-24 12:00 ATCO, ALTALINK Outage 7L230 (743s Sarah Lake - 888AL tap), 7L230 (69s North Barrhead - 888AL tap), 743s 703 (743s Sarah Lake) emergency pole change str#384 4 Hours
Continuous		  
30-Mar-24 08:00 01-Apr-24 18:00 ENMAX Outage 65.2TR (SS-65), 65B138-D85 (SS-65), 65B138-D82 (SS-65), 65B240-D132 (SS-65), 65B240-D135 (SS-65), 65MD138-65.2TR (SS-65), 65MD240-65.2TR (SS-65) HV SW maintenance, check reversing switch, oil sampling, tapchanger, power factor test 2.42 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 02-Apr-24 18:00 ALTALINK Outage 244s 240kV Bus 1 (244s Bowmanton), 244s 138kV Bus 1 (244s Bowmanton), 244s T1 (244s Bowmanton), 244s 452 (244s Bowmanton), 244s 152 (244s Bowmanton), 244s 2552 (244s Bowmanton), 244s 2152 (244s Bowmanton), 244s 2589 (244s Bowmanton), 244s 2289 (244s Bowmanton), 244s 2189 (244s Bowmanton) install and commission new circuits and protections pertaining to the Dunmore project 11 Hours
Daily		  
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 02-Apr-24 17:00 ENMAX RB 9.83L (SS-9 - SS-43) spring transmission line washing 10 Hours
Continuous		  
02-Apr-24 07:00 02-Apr-24 17:00 ENMAX RB 20.82L (SS-20 - SS-21) spring transmission line washing 10 Hours
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 03-Apr-24 18:00 ALTALINK Outage 299s T1 (299s Kingman), 299s 732N (299s Kingman) transformer maintenance and test 1.44 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 07:30 02-Apr-24 15:30 ALTALINK RB 551L (945s Sunshine Village - 551GL tap), 551L (953s Lake Louise - 551GL tap) clean up osprey nest 8 Hours
Daily		  
02-Apr-24 07:30 03-Apr-24 18:00 ALTALINK TE 299s RTU/SCADA (299s Kingman) update configuration for T1 protection upgrade 1.44 Days
Daily		  
02-Apr-24 07:30 02-Apr-24 18:00 ALTALINK Outage 221s T2 (221s Sunken Lake) tap changer filter installation and metering replacement 10.5 Hours
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 02-Apr-24 17:00 ATCO RB 7L39 (722s Crystal Lake - 7LA39 tap), 7LA39 (728s Mercer Hill - 7L39 tap), 7L39 (811s Clairmont Lake - 7LA39 tap) connection of 902s mobile substation to 7LA39 at 728s Mercer Hill 9 Hours
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 02-Apr-24 18:00 ALTALINK Outage 838L (14s Devon - 325s Leduc), 325s 838 (325s Leduc), 14s 838X (14s Devon) high load move str 27-28 10 Hours
Daily		  
02-Apr-24 08:00 02-Apr-24 17:00 ALTALINK TE 632s RTU/SCADA (632s Russell) raw socket conversion on 7705A and LAN switch upgrade 9 Hours
Daily		  
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 09:30 02-Apr-24 17:30 ATCO TE 823s Protection & Control (823s Wapiti) 701T tap changer settings update 8 Hours
Continuous		  
02-Apr-24 10:00 02-Apr-24 15:00 ATCO Outage 932s 722C (932s Pemukan) PRC-005 trip coil testing 5 Hours
Continuous		  
02-Apr-24 10:00 02-Apr-24 10:30 CMH TE Medicine Hat ICCP Outage data center switches migration 30 Mins
Continuous		  
02-Apr-24 11:00 02-Apr-24 16:00 ATCO RB 7L76 (786s High Level - 832s Blumenort) HOP to lift bottom phase of 7L76-04 5 Hours
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 13:30 02-Apr-24 17:00 ALTALINK Outage 103s 1752 (103s Goose Lake) 1st trip only 3.5 Hours
Daily		  
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 07:00 03-Apr-24 18:00 ALTALINK Outage 244s 240kV Bus 2 (244s Bowmanton), 244s 138kV Bus 2 (244s Bowmanton), 244s T2 (244s Bowmanton), 244s 352 (244s Bowmanton), 244s 652 (244s Bowmanton), 244s 2652 (244s Bowmanton), 244s 2252 (244s Bowmanton), 244s 2389 (244s Bowmanton), 244s 2489 (244s Bowmanton) install and commission new circuits and protections pertaining to the Dunmore Project 11 Hours
Daily		  
03-Apr-24 07:00 04-Apr-24 18:00 ALTALINK Outage 453L (305s Acheson - 367s Harry Smith), 305s 453 (305s Acheson), 367s 453 (367s Harry Smith) 305s453 grading cap replacement and 305s24 switch repair 1.46 Days
Continuous		  
03-Apr-24 08:00 03-Apr-24 18:00 Syncrude TE Syncrude ICCP Outage SCADA - server update 10 Hours
Daily		  
03-Apr-24 08:00 03-Apr-24 17:00 ALTALINK Outage 631L (186s Dry Creek - 199s East Airdrie) repair OHSW bond at str 86, replace dampers at str 90 9 Hours
Daily		  
03-Apr-24 08:00 03-Apr-24 17:00 ALTALINK RB 611L (186s Dry Creek - 391S Balzac) repair OHSW bond on 631L86 (611L11), replace dampers on 631L90(611L7) 9 Hours
Daily		  
03-Apr-24 08:00 03-Apr-24 10:00 ENMAX Outage 15.60L (SS-15 - SS-21) spring transmission line washing 2 Hours
Continuous		  
03-Apr-24 08:00 03-Apr-24 18:00 ALTALINK TE AltaLink Telecom Equipment MPLS upgrade at 312s 10 Hours
Daily		  
03-Apr-24 08:00 03-Apr-24 17:00 ALTALINK, Travers2SolarLP TE 991s Protection & Control (991s Little Bow) settings change on 1005AL A87/27/L1 SEL411L 9 Hours
Daily		  
03-Apr-24 08:00 03-Apr-24 17:00 ALTALINK, Travers2SolarLP TE 991s RTU/SCADA (991s Little Bow) RTU SCADA outage 9 Hours
Daily		  
03-Apr-24 08:00 03-Apr-24 17:00 ALTALINK TE 56s RTU/SCADA (56s Boyle) troubleshoot comms issue and replace HMI 9 Hours
Daily		  
03-Apr-24 08:00 03-Apr-24 16:00 ENMAX Outage 22.81L (SS-22 - SS-39), 22B138-22.81 (SS-22), 39B138-22.81 (SS-39) power factor test 8 Hours
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		  
03-Apr-24 08:00 03-Apr-24 12:00 ATCO RB 7L23 (796s Nipisi - 7L23 tap), 7L23 (732s Mitsue - 7L23 tap) require HOP on 7L23 str 7L23-305 to lift 1 phase on 144 line for a high load move 4 Hours
Continuous		  
03-Apr-24 08:00 03-Apr-24 12:00 ATCO RB 7L63 (780s Lubicon - 812s Norcen), 7L63 (788s Hotchkiss - 7LA63 tap) require HOP on 7L63 str 7L63-923 to lift 1 phase on 144 line for a high load move 4 Hours
Continuous		  
03-Apr-24 08:00 03-Apr-24 17:00 ALTALINK Outage 256s T1 (256s Harmattan) urgent - 256s4 like for like replacement and AMI associated cable re- attachment 9 Hours
Daily		  
03-Apr-24 08:30 03-Apr-24 17:30 ALTALINK Outage 613L (103s Goose Lake - 396s Pincher Creek), 396s 20 (396s Pincher Creek) clean/grease 103s21 and 103s1352,103s1452 first trips on return switching 9 Hours
Daily		 AB-BC
03-Apr-24 09:00 03-Apr-24 16:00 ATCO TE ATCO Telecom Equipment main microwave link cutover to new IRU AVIAT radios from constellations 7 Hours
Continuous		  
03-Apr-24 10:00 03-Apr-24 13:00 ENMAX Outage 21.61L (SS-21 - SS-34) spring transmission line washing 3 Hours
Continuous		  
03-Apr-24 10:00 03-Apr-24 15:00 ATCO Outage 932s 723C (932s Pemukan) PRC-005 - trip coil testing, microprocessor relay testing 5 Hours
Continuous		  
03-Apr-24 10:00 03-Apr-24 17:00 ATCO TE ATCO Telecom Equipment, 827s RTU/SCADA (827s Cranberry Lake) total outage to IP Network access traffic 7 Hours
Continuous		  
04-Apr-24 07:00 05-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		  
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 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		  

Prepared On:   2024-03-28   15:11:07

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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