Alberta Electric System Operator
System Co-ordination Plan
2024-03-16 to 2024-03-22
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 23-Mar-24 17:00 EPCOR Outage 113s T2 (113s Inland Cement) emergency iInvestigation 68.38 Days
Continuous		  
12-Feb-24 08:00 24-Mar-24 17:00 ALTALINK RB 974L (39s Bickerdike - 310p Sundance) work with high mast equipment in proximity to 974L for construction of soil wall to stabilize eroding riverbank near str 313 41.33 Days
Daily		  
12-Feb-24 08:00 24-Mar-24 17:00 ALTALINK RB 973L (39s Bickerdike - 310p Sundance) work with high mast equipment in proximity to 974L for construction of soil wall to stabilize eroding riverbank near str 313 41.33 Days
Daily		  
12-Feb-24 12:15 16-Mar-24 17:45 ALTALINK Outage 702L (137s Sedgewick - 377s AML Hardisty), 377s 702W (377s AML Hardisty) structures maintenance and replacement 33.19 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		  
20-Feb-24 10:00 27-Mar-24 16:00 ATCO TE 801s Protection & Control (801s Anderson) PRC relay testing at 801S Anderson 36.21 Days
Continuous		  
26-Feb-24 07:00 22-Mar-24 17:00 EPCOR Outage T2 (Garneau) garneau S/S Tx2 bay outage 25.38 Days
Continuous		  
26-Feb-24 07:00 22-Mar-24 17:00 EPCOR TE Protection & Control (Woodcroft) protection blocking for annual relay maintenance 25.38 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		  
29-Feb-24 12:00 22-Mar-24 16:00 ATCO Outage 7L64 (779s Chinchaga River - 789s Keg River), 789s 701 (789s Keg River) line mitigation, red tag poles and X arms change
 22.13 Days
Continuous		  
04-Mar-24 07:00 30-Apr-24 17:00 EPCOR Outage 72CH11 (987s Clover Bar - EP Hardisty), H725 (EP Hardisty), 987s CH724 (987s Clover Bar) 72CH11 pothead leak mitigation 57.38 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		  
04-Mar-24 08:00 22-Mar-24 17:00 ALTALINK TE 523s RTU/SCADA (523s Bullshead) update and addition of new SCADA alarms pertaining to the Dunmore project 18.33 Days
Daily		  
04-Mar-24 09:00 18-Mar-24 17:00 ATCO Outage 7L760 (767s Oyen - 7LA760 tap), 767s 702 (767s Oyen) install foundations and new switches 7L760D4 and 7L760D5 14.29 Days
Continuous		  
04-Mar-24 11:00 18-Mar-24 17:00 ATCO TE 767s Protection & Control (767s Oyen) adding new auxiliary relays and CT work on 701T protection(s) 14.21 Days
Continuous		  
04-Mar-24 14:00 18-Mar-24 15:00 ALTALINK Outage 948L (650s Hansman Lake - 863s Paintearth) protection upgrade @ 863s - ATCO 14 Days
Continuous		  
04-Mar-24 14:30 18-Mar-24 15:00 ATCO Outage 9L948 (650s Hansman Lake - 863s Paintearth), 863s 902 (863s Paintearth) 863S Paintearth protection upgrade
13.98 Days
Continuous		  
05-Mar-24 06:00 22-Mar-24 18:30 ALTALINK Outage 174L (197s Bardo - 289s Saunders Lake), 197s 174W (197s Bardo) rebuild between str 301-379 17.48 Days
Continuous		  
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		  
08-Mar-24 08:00 18-Mar-24 19:00 ATCO RB 7L81 (791s Rainbow Lake - BCH Harvest Energy FNC Tap) BC Hydro emergency request 10.42 Days
Continuous		  
08-Mar-24 08:30 20-Mar-24 17:00 ALTALINK Outage 700L (422s Westwood - 746L tap), 700L (746s Sherwood Park - 746L tap), 746L (700L tap - 746AL tap), 422s 700 (422s Westwood), 746s 700N (746s Sherwood Park) 1191L stringing 12.31 Days
Continuous		  
11-Mar-24 06:00 20-Mar-24 18:00 ALTALINK Outage 799L (77s Sagitawah - 443s South Mayerthorpe) component and structure replacement str 491-721A 9.5 Days
Continuous		  
11-Mar-24 07:00 28-Mar-24 17:30 ALTALINK TE 435s RTU/SCADA (435s Bassano) update RTU 17.44 Days
Daily		  
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		  
11-Mar-24 13:00 18-Mar-24 17:30 ATCO TE 863s Protection & Control (863s Paintearth) protection upgrade 7.19 Days
Continuous		  
12-Mar-24 07:00 19-Mar-24 17:00 ALTALINK TE 228s RTU/SCADA (228s T.M.P.L. Niton) configuration update for new alarms 7.42 Days
Daily		  
12-Mar-24 09:00 19-Mar-24 16:00 ALTALINK Outage 744L (228s T.M.P.L. Niton - 744AL tap), 314L (207s Pinedale - 228s T.M.P.L. Niton), 228s T1 (228s T.M.P.L. Niton), 228s 314 (228s T.M.P.L. Niton), 228s 744 (228s T.M.P.L. Niton), 228s 30 (228s T.M.P.L. Niton), 228s 31 (228s T.M.P.L. Niton) replace 228s744W & 228s744E with manual disconnects, replace 3 phase VT2 and complete A87/138B & B87/138B. 7.29 Days
Continuous		  
12-Mar-24 09:00 16-Mar-24 17:30 ALTALINK TE 207s Protection & Control (207s Pinedale), 207s RTU/SCADA (207s Pinedale) settings updates and line number changes to A21/L1 & B21/L1 4.35 Days
Continuous		  
12-Mar-24 09:00 21-Mar-24 20:00 SUNCOR TE 29EDD-34 Protection & Control (29EDD-34) relay maintenance on 29PL9-5 87B relay SEL-311L 9.46 Days
Continuous		  
13-Mar-24 06:00 21-Mar-24 18:00 ALTALINK Outage 792L (150s Clyde - 191s N.W. Cardiff), 191s 792N (191s N.W. Cardiff), 150s 792X (150s Clyde) structure and component replacement str 264 and 458 8.5 Days
Continuous		  
15-Mar-24 08:00 16-Mar-24 17:00 ALTALINK Outage 275s 240kV Bus 1 (275s Jenner), 275s T1 (275s Jenner), 275s 2152 (275s Jenner), 275s 38 (275s Jenner) replace cvt7, replace JB and wire 1.38 Days
Continuous		  
16-Mar-24 07:00 19-Mar-24 17:30 ALTALINK TE 235s Protection & Control (235s Entwistle) settings updates to A21/L1 and B21/L1 3.44 Days
Continuous		  
16-Mar-24 07:00 23-Mar-24 17:00 EPCOR Outage 711L (113s Inland Cement - 747L tap), 113s T1 (113s Inland Cement), 113s T2 (113s Inland Cement) bushing replacement TX2, ariel transmission to complete insulator work, P&C to complete relay upgrade 7.42 Days
Continuous		  
16-Mar-24 08:00 16-Mar-24 16:00 ENMAX Outage 9.80L (SS-9 - SS-31), 9.1TR (SS-9), 9B138-9.80 (SS-9), 9MD138-9.1TR (SS-9) spring substation washing 8 Hours
Continuous		  
16-Mar-24 13:00 16-Mar-24 17:00 ATCO RB 7L76 (786s High Level - 832s Blumenort) high load move HOP to lift bottom phase 7L76-4 4 Hours
Continuous		  
17-Mar-24 08:00 17-Mar-24 12:00 ENMAX Outage 24.81L (SS-24 - SS-31), 31.84L (SS-31 - SS-32), 31.3TR (SS-31), 31.2TR (SS-31), 31B138-24.81 (SS-31), 31B138-31.84 (SS-31), 31MD138-31.2TR (SS-31), 31MD138-31.3TR (SS-31) spring substation washing and check reversing switch 31.3TR, 31.2TR 4 Hours
Continuous		  
17-Mar-24 12:01 17-Mar-24 16:00 ENMAX Outage 9.80L (SS-9 - SS-31), 31.2TR (SS-31), 31.1C (SS-31), 31.1TR (SS-31), 31B138-9.80 (SS-31), 31MD138-31.1TR (SS-31), 31MD138-31.2TR (SS-31) spring substation washing and check reversing switch 31.1TR 3.98 Hours
Continuous		  
17-Mar-24 12:15 24-Mar-24 17:45 ALTALINK Outage 702L (137s Sedgewick - 757s Battle River) structure maintenance (str 177- 197) and structure replacement (str 126) 7.23 Days
Continuous		  
17-Mar-24 12:15 24-Mar-24 17:45 ATCO Outage 7L702 (137s Sedgewick - 757s Battle River) AltaLink structure maintenance/replacement on 702L 7.23 Days
Continuous		  
18-Mar-24 07:00 22-Mar-24 17:00 EPCOR, ALTALINK Outage 657s T2 (657s Summerside), 657s SU2402 (657s Summerside), 657s SU2403 (657s Summerside) Summerside: TX2 P&C maintenance 4.42 Days
Continuous		  
18-Mar-24 07:00 19-Mar-24 17:00 EPCOR TE 557s Protection & Control (557s Castle Downs) Castledowns - protection blocking for settings change (A protection line) 1.42 Days
Continuous		  
18-Mar-24 07:30 21-Mar-24 17:30 ALTALINK RB 925L (63s Red Deer - 74s Janet) prep work for future project 3.42 Days
Daily		  
18-Mar-24 07:30 21-Mar-24 17:30 ALTALINK RB 1082L (63s Red Deer - 287s Hazelwood) crews working within close proximity on 925L 3.42 Days
Daily		  
18-Mar-24 07:30 21-Mar-24 17:30 ALTALINK RB 929L (74S Janet - 287s Hazelwood) crews working within close proximity on 925L 3.42 Days
Daily		  
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 22-Mar-24 17:00 ALTALINK TE 5s RTU/SCADA (5s East Calgary) SCADA upgrade 4.38 Days
Daily		  
18-Mar-24 08:00 28-Mar-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), 29EDD-94 RTU/SCADA (29EDD-94 Voyageur) steel Inspection for 29PL9-162/193 A frame; 29PL9-24/25 A frame
 10.42 Days
Continuous		  
18-Mar-24 08:00 18-Mar-24 17:00 ALTALINK Outage 225L (225s Magrath - 225AL tap), 225L (67s Stirling - 225AL tap), 225AL (313s Raymond Reservoir - 225L tap), 67s 225 (67s Stirling), 225s 225E (225s Magrath) replace arms and insulators at structure 9 Hours
Daily		  
18-Mar-24 08:00 19-Mar-24 16:00 REDDEER Outage 209T1 (209s Timberlands), 209s T1 (209s Timberlands) 209T1 P&C setting changes & feeder breaker testing 1.33 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 08:00 18-Mar-24 12:00 ENMAX Outage 32.83L (SS-32 - SS-40), 26.81L (SS-26 - SS-32), 32.1TR (SS-32), 32.2TR (SS-32), 32B138-32BT5 (SS-32), 32B138-32.83 (SS-32), 32B138-26.81 (SS-32) spring substation washing. check reversing switch 32.1TR, 32.2TR 4 Hours
Continuous		  
18-Mar-24 08:00 21-Mar-24 17:00 ALTALINK TE 299s RTU/SCADA (299s Kingman) update configuration for T1 protection upgrade 3.38 Days
Daily		  
18-Mar-24 08:00 18-Mar-24 17:00 SUNCOR TE 635PL7-1000 (635EDD-1000 - 635EDD-1001) 635PL7-1000 line B protection breaker status troubleshooting 9 Hours
Continuous		  
18-Mar-24 08:00 22-Mar-24 17:00 ALTALINK TE 251s RTU/SCADA (251s Whitla) updating RTU configuration for the Dunmore project 4.38 Days
Daily		  
18-Mar-24 08:00 21-Mar-24 18:00 ENMAX Outage 39.4TR (SS-39) grounding deficiency improvements 3.42 Days
Continuous		  
18-Mar-24 08:00 19-Mar-24 16:00 ENMAX TE 15.62L (SS-15 - SS-16) 15 sub 15.62L A and B protection - 15.60 line protection upgrade 1.33 Days
Daily		  
18-Mar-24 08:00 22-Mar-24 16:00 ENMAX TE Protection & Control (SS-15) 15 sub 69 kV zone 21 bus differential protection - 15.60 line protection upgrade 4.33 Days
Daily		  
18-Mar-24 08:00 20-Mar-24 16:00 ENMAX Outage 21.4TR (SS-21), 21.61L (SS-21 - SS-34), 15.60L (SS-15 - SS-21), 21B69-21.61 (SS-21), 21B69-15.60 (SS-21), 21B69-21.4TR (SS-21) line protection upgrade 2.33 Days
Continuous		  
18-Mar-24 08:00 18-Mar-24 16:00 ENMAX Outage 8B138-5A0 (SS-8) 8 sub prot repl 8 Hours
Continuous		  
18-Mar-24 08:00 22-Mar-24 17:00 ALTALINK TE 535s RTU/SCADA (535s Joffre) supervisory visibility outage required to download new configurations and make LAN modifications to add new SEL-2440s and LAN devices 4.38 Days
Continuous		  
18-Mar-24 08:30 21-Mar-24 15:30 ATCO TE 705s Protection & Control (705s Kitscoty) 21A/7L14 PRC-005 testing, 21B/7L14 PRC-005, 50BF/703 PRC-005 testing 3.29 Days
Continuous		  
18-Mar-24 09:00 12-Apr-24 17:00 BCH Outage 2L112 (BPA Boundary - BCH Nelway) repair NLY T2 oil leak BC maintenance does not affect the Alberta ATC 25.33 Days
Continuous		 AB-BC
18-Mar-24 09:00 22-Mar-24 17:00 ATCO TE 766s Protection & Control (766s Nevis), 766s RTU/SCADA (766s Nevis) RAS-A1/766S, RAS-A2/766s, RAS-B1/766S, and RAS-B2/766S will all require settings updates, adding SCADA control 4.33 Days
Continuous		  
18-Mar-24 09:00 21-Mar-24 17:00 ATCO TE 802s Protection & Control (802s Michichi Creek), 802s RTU/SCADA (802s Michichi Creek) RAS-A/802S and RAS-B/802S require settings updates, adding SCADA control 3.33 Days
Continuous		  
18-Mar-24 09:00 18-Mar-24 15:00 ATCO TE 764s Protection & Control (764s Heisler) 50N/602T - relay work 6 Hours
Continuous		  
18-Mar-24 09:00 25-Mar-24 17:00 BCH Outage 2L112 (BPA Boundary - BCH Nelway), T1 (BCH Nelway) BPA replace structures at various locations 7.33 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 09:30 19-Mar-24 17:30 ALTALINK Outage 74s 102 (74s Janet), 74s 103 (74s Janet), 74s C3 (74s Janet), 74s C4 (74s Janet) outage required to perform mtce 1.33 Days
Continuous		  
18-Mar-24 09:30 19-Mar-24 17:00 ALTALINK, WCLP TE 1039s Protection & Control (1039s Wheatcrest) troubleshoot remote access issues on line protections at 1039s Wheatcrest (A77/27/L1 & A77/195RAS), (B77/27/L1 & B77/195RAS) 31.5 Hours
Daily		  
18-Mar-24 10:00 21-Mar-24 17:00 ATCO, ALTALINK RB 7L50 (526s Buffalo Creek - 491L tap), 491L (252s Jarrow - 7L50 tap) ATCO work - 7L50 pole and arm replacement using live line techniques 3.29 Days
Continuous		  
18-Mar-24 10:00 21-Mar-24 16:00 ATCO TE 948s Protection & Control (948s Heatburg) update RAS-A and RAS-B 7L159 thermal relays with respect to RAS 134 L3 3.25 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 11:00 22-Mar-24 16:00 ATCO Outage 806s 701T (806s Oldman River) transformer maintenance 4.21 Days
Continuous		  
18-Mar-24 11:00 21-Mar-24 16:00 ALTALINK TE 151s RTU/SCADA (151s Strathmore) RTU outage for 151s 35 new breaker install, install new RTU configuration and test points, configurations changes 3.21 Days
Daily		  
18-Mar-24 11:00 19-Mar-24 17:00 ALTALINK TE 370s RTU/SCADA (370s North Lethbridge) replace failed SG-4520 RTU 30 Hours
Daily		  
18-Mar-24 12:00 18-Mar-24 16:00 ENMAX Outage 31.84L (SS-31 - SS-32), 32.3TR (SS-32), 32B138-32BT5 (SS-32), 32B138-31.84 (SS-32) spring substation washing 4 Hours
Continuous		  
18-Mar-24 12:00 18-Mar-24 17:00 ALTALINK TE AltaLink Telecom Equipment, 71s Protection & Control (71s Lamoureux) repair radio between 71s and 9071R 5 Hours
Daily		  
18-Mar-24 12:30 18-Mar-24 16:30 ALTALINK Outage 310p 1752 (310p Sundance) replace gauge 4 Hours
Daily		  
18-Mar-24 12:30 18-Mar-24 14:00 ALTALINK, EPCOR RB 1045L (EP 805s Jasper - 1045AL tap) Altalink work at 310p substation 90 Mins
Continuous		  
18-Mar-24 13:00 21-Mar-24 17:30 ALTALINK Outage 287s T1 (287s Hazelwood) T1 doble, maintenance and IDD alert/alarming 3.19 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		  
19-Mar-24 07:00 19-Mar-24 18:30 BHE Canada Outage MATL (120s Picture Butte - Montana), 120s MATL PST (120s Picture Butte), 120s C1 (120s Picture Butte), 120s C2 (120s Picture Butte), 120s 1052 (120s Picture Butte), 120s 1352 (120s Picture Butte) urgent maintenance 11.5 Hours
Continuous		 AB-MATL
19-Mar-24 07:30 22-Mar-24 17:30 ALTALINK RB 740L (39s Bickerdike - 740AL tap), 740L (426s Coalspur - 743L tap), 740L (740AL tap - 743L tap), 762L (101s Cheviot - 740L tap) inspecting woodpecker damage 740AL (str 740AL1 - 87) 3.42 Days
Daily		  
19-Mar-24 08:00 20-Mar-24 16:00 ENMAX Outage 32.1TR (SS-32) 32.15 breaker relocation 1.33 Days
Continuous		  
19-Mar-24 08:00 19-Mar-24 17:00 ALTALINK TE AltaLink Telecom Equipment, 368s RTU/SCADA (368s Burdett), 879L (244s Bowmanton - 879AL tap), 879L (368s Burdett - 879L tap) software upgrade & card replacement to correct 9 Hours
Daily		  
19-Mar-24 08:00 19-Mar-24 18:00 ENMAX Outage 13.82L (SS-13 - SS-22), 22.3TR (SS-22), 22.1TR (SS-22), 22B138-22BT8 (SS-22), 22MD138-22.1TR (SS-22), 22MD138-22.3TR (SS-22), SW83 (SS-22), SW84 (SS-22) spring substation washing, replace reversing switch motor/manual contact 10 Hours
Continuous		  
19-Mar-24 08:00 19-Mar-24 18:00 ALTALINK Outage 756L (87s Gaetz - 535s Joffre), 87s 152 (87s Gaetz), 87s 252 (87s Gaetz) 87s756E, inspect, clean and test switch - 35'C hot spot found. Investigate and potentially fix 87s3 10 Hours
Daily		  
19-Mar-24 08:00 19-Mar-24 17:00 ALTALINK TE 411s Protection & Control (411s Obed) standard relay maintenance 9 Hours
Daily		  
19-Mar-24 08:00 19-Mar-24 17:00 ALTALINK TE 411s RTU/SCADA (411s Obed) RTU database update 9 Hours
Daily		  
19-Mar-24 08:00 19-Mar-24 17:00 ALTALINK TE 205s RTU/SCADA (205s Castle Rock Ridge) complete a raw socket conversion on 7705A and a LAN switch upgrade 9 Hours
Daily		  
19-Mar-24 08:00 19-Mar-24 17:00 ALTALINK TE 799s RTU/SCADA (799s Coleman) 799s to complete a raw socket conversion on 7705A and a LAN switch upgrade 9 Hours
Daily		  
19-Mar-24 08:00 19-Mar-24 16:00 ENMAX TE Protection & Control (SS-8) 8 sub 138 kV PT-E1 secondary fuse outage - connect Z32 panel to Z21 panel 8 Hours
Continuous		  
19-Mar-24 08:30 25-Mar-24 16:30 ALTALINK Outage 435s T1 (435s Bassano), 435s 853A (435s Bassano) install new 138kV CVT and replace T1 S protection. Install new VT3 on 2253L switchgear. 2253L relay settings change 6.33 Days
Continuous		  
19-Mar-24 09:00 21-Mar-24 20:00 SUNCOR TE 29EDD-1 Protection & Control (29EDD-1 Millennium) maintenance on 29PL9-16 & 29PL9-17 protections @ 29EDD-1 substation 2.46 Days
Continuous		  
19-Mar-24 09:00 19-Mar-24 15:00 ATCO TE 764s Protection & Control (764s Heisler) relay work - 21A/6L05 at 764S 6 Hours
Continuous		  
19-Mar-24 10:00 19-Mar-24 11:00 ATCO TE ATCO Telecom Equipment AVIAT IRU 600 radio firmware upgrade 60 Mins
Continuous		  
19-Mar-24 10:00 21-Mar-24 17:30 ATCO Outage 813s SVC (813s Little Smoky), 813s 703T (813s Little Smoky), 813s 719 (813s Little Smoky) SVC HMI replacement
 2.31 Days
Continuous		  
19-Mar-24 10:00 20-Mar-24 16:00 ATCO TE 939s Protection & Control (939s Livock), 939s RTU/SCADA (939s Livock) sync check 1200BS1/1200BS2/12L41- alarming updates to 11S-2-STN REC670 Bay 1206 controller 30 Hours
Continuous		  
19-Mar-24 10:00 20-Mar-24 16:00 ATCO TE 939s Protection & Control (939s Livock) 87TA/901T, TV50-TV51-59-TV51T/901T protection testing 30 Hours
Continuous		  
19-Mar-24 10:00 19-Mar-24 17:00 ATCO TE 769s RTU/SCADA (769s Stettler) low BES firewall install 7 Hours
Continuous		  
19-Mar-24 11:00 19-Mar-24 17:00 ALTALINK TE 412s Protection & Control (412s Shell Eagle Creek) relay maintenance on T1 6 Hours
Daily		  
19-Mar-24 13:00 21-Mar-24 13:00 ATCO TE 752s RTU/SCADA (752s Albright & Wilson) PLC updates and point testing 2 Days
Continuous		  
20-Mar-24 07:00 20-Mar-24 17:00 EPCOR Outage 557s CD2401 (557s Castle Downs) switching demonstration (NAIT tour) 10 Hours
Continuous		  
20-Mar-24 07:00 21-Mar-24 17:00 EPCOR TE 987s Protection & Control (987s Clover Bar) protection blocking for settings change (A protection) 1.42 Days
Continuous		  
20-Mar-24 07:00 21-Mar-24 17:00 ALTALINK TE 255s Protection & Control (255s Vulcan) protection outages to test RAS arm and disarm 1.42 Days
Daily		  
20-Mar-24 07:00 21-Mar-24 17:00 ALTALINK TE 255s RTU/SCADA (255s Vulcan) required for RAS arm and disarm testing 1.42 Days
Daily		  
20-Mar-24 08:00 22-Mar-24 16:00 REDDEER Outage 194s T1 (194s South Red Deer), 194s T2 (194s South Red Deer) GIS switchgear maintenance 2.33 Days
Continuous		  
20-Mar-24 08:00 20-Mar-24 17:00 ALTALINK IO AltaLink Telecom Equipment major alarm on radio, software upgrade and possible component replacement 9 Hours
Daily		  
20-Mar-24 08:00 20-Mar-24 12:00 ENMAX Outage 33.83L (SS-33 - SS-41), 33.1TR (SS-33), 33B138-33.83 (SS-33), 33MD138-33.1TR (SS-33), SW83 (SS-33) spring substation washing, check reversing switch 4 Hours
Continuous		  
20-Mar-24 08:00 20-Mar-24 17:00 ALTALINK TE 87s Protection & Control (87s Gaetz) transformer and circuit breaker work 9 Hours
Daily		  
20-Mar-24 08:30 21-Mar-24 15:30 ATCO TE 837s Protection & Control (837s Mahihkan) PRC relay testing on 21A-87L-85A/7L105 and 21B-87L-85B-25SC/7L105 31 Hours
Continuous		  
20-Mar-24 08:30 20-Mar-24 13:30 ALTALINK Outage 165s 156 (165s Gainford), 165s T1 (165s Gainford) leak checks and top up SF6 gas 5 Hours
Daily		  
20-Mar-24 09:00 20-Mar-24 15:00 ATCO TE 764s Protection & Control (764s Heisler) relay microprocessor based complete 6 Hours
Continuous		  
20-Mar-24 09:00 20-Mar-24 17:00 BCH Outage 1L274 (978s BCH Britt Creek - BCH Greenhills tap) replace broken cross arm 8 Hours
Continuous		 AB-BC
20-Mar-24 10:00 20-Mar-24 17:00 ATCO TE 2009s RTU/SCADA (2009s Willow Lake) low bes firewall install 7 Hours
Continuous		  
20-Mar-24 12:00 20-Mar-24 16:00 ENMAX Outage 33.84L (SS-33 - SS-43), 33.2TR (SS-33), 33MD138-33.2TR (SS-33), 33B138-33.84 (SS-33) spring substation washing, check reversing switch 4 Hours
Continuous		  
21-Mar-24 07:00 22-Mar-24 18:00 ATCO RB 9L58 (848s Ruth Lake - 888s Dover) walk up inspection 1.46 Days
Continuous		  
21-Mar-24 08:00 21-Mar-24 10:00 ENMAX Outage 1.5TR (SS-1) substation washing and check reversing switch 2 Hours
Continuous		  
21-Mar-24 08:00 21-Mar-24 16:00 ALTALINK Outage 38s 897 (38s East Edmonton), 897L (38s East Edmonton - 45s Bretona), 45s 897 (45s Bretona) SF6 gas top up 8 Hours
Daily		  
21-Mar-24 08:00 21-Mar-24 17:00 ALTALINK TE 58s Protection & Control (58s Edson) standard relay maintenance 9 Hours
Daily		  
21-Mar-24 08:00 21-Mar-24 17:00 ALTALINK TE AltaLink Telecom Equipment, 648s Protection & Control (648s Metiskow), 650s Protection & Control (650s Hansman Lake), 213s RTU/SCADA (213s Hughenden), 221s RTU/SCADA (221s Sunken Lake), 267s RTU/SCADA (267s Killarney Lake), 277s RTU/SCADA (277s Hayter), 508s RTU/SCADA (508s Lakesend), 545s RTU/SCADA (545s Provost), 648s RTU/SCADA (648s Metiskow) component replacement to resolve alarm issue on 9532R - 9465R radio 9 Hours
Daily		  
21-Mar-24 09:00 21-Mar-24 18:00 SUNCOR TE 29EDD-1 RTU/SCADA (29EDD-1 Millennium) network switch firmware upgrade 9 Hours
Continuous		  
21-Mar-24 09:00 21-Mar-24 15:00 ATCO Outage 789s 706C (789s Keg River) emergency top up SF6 insulating gas to breaker 706 6 Hours
Continuous		  
21-Mar-24 10:00 21-Mar-24 12:00 ENMAX Outage 1.6TR (SS-1) substation washing and check reversing switch 2 Hours
Continuous		  
21-Mar-24 10:00 21-Mar-24 16:00 ATCO TE 939s Protection & Control (939s Livock) 50BF/701 protection testing 6 Hours
Continuous		  
21-Mar-24 10:00 21-Mar-24 17:00 ATCO TE 946s RTU/SCADA (946s Oakland) firewall install 7 Hours
Continuous		  
21-Mar-24 12:00 21-Mar-24 14:00 ENMAX Outage 1.7TR (SS-1) substation washing and check reversing switch 2 Hours
Continuous		  
21-Mar-24 14:00 21-Mar-24 16:00 ENMAX Outage 1.8TR (SS-1) substation washing and check reversing switch. 2 Hours
Continuous		  
22-Mar-24 07:00 22-Mar-24 17:00 EPCOR TE 816s Protection & Control (816s Petrolia) Petrolia - protection blocking for settings change (908LE A protection) 10 Hours
Continuous		  
22-Mar-24 08:00 24-Mar-24 16:00 ENMAX Outage 9.83L (SS-9 - SS-43), 9B138-9.83 (SS-9), 43B138-9.83 (SS-43) line clearance mitigation 2.33 Days
Continuous		  
22-Mar-24 08:00 22-Mar-24 12:00 ENMAX Outage 1.81L (SS-1 - SS-20), 20.1TR (SS-20), 20B138-1.81 (SS-20), SW83 (SS-20), 20MD138-20.1TR (SS-20) spring substation washing, check reversing switch 4 Hours
Continuous		  
22-Mar-24 08:00 22-Mar-24 17:00 ALTALINK TE AltaLink Telecom Equipment, 45s RTU/SCADA (45s Bretona) upgrade 45s MPLS node 9 Hours
Daily		  
22-Mar-24 08:00 22-Mar-24 17:00 ALTALINK TE AltaLink Telecom Equipment, 993s RTU/SCADA (993s Abee) upgrade 993s MPLS node 9 Hours
Daily		  
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 12:00 22-Mar-24 18:00 ENMAX Outage 20.82L (SS-20 - SS-21), 20.3TR (SS-20), 20B138-20.82 (SS-20), SW84 (SS-20), 20MD138-20.3TR (SS-20) spring substation washing, check reversing switch 6 Hours
Continuous		  

Prepared On:   2024-03-15   15:19:30

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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