Alberta Electric System Operator | |
System Co-ordination Plan | |
2025-06-05 to 2025-06-13 | |
Approved Outages |
Previous Version | |
Download CSV |
From | To | Owner | Type | Element | Scheduled Activity | Date/Time Comments | Interconnection |
---|---|---|---|---|---|---|---|
05-Oct-18 08:00 | 30-Aug-25 16:00 | EPCOR | IO | C2 (Rossdale) | forced outage | Continuous |
2,521.33 Days
|
24-Oct-18 01:13 | 30-May-27 16:00 | EPCOR | IO | C1 (Rossdale) | forced outage | 3,140.62 Days
Continuous |
|
27-Nov-23 08:00 | 01-Aug-25 16:00 | ENMAX | Outage | 32.2TR (SS-32) | 32 sub 32.2TR 8 kV bus switchgear demolition | 613.29 Days
Continuous |
|
26-Jul-24 10:00 | 31-Jul-26 16:00 | ATCO | Outage | 826s 504R (826s Marguerite Lake) | emergency removal to replace failed 502R @834S | 735.25 Days
Continuous |
|
23-Aug-24 13:45 | 30-Jun-26 14:29 | ALTALINK | Outage | 157s C1 (157s Lac La Biche) | forced outage | 676.03 Days
Continuous |
|
03-Jan-25 07:00 | 27-Jun-25 17:00 | EPCOR | TE | 805s Protection & Control (805s Jasper), 805s RTU/SCADA (805s Jasper) | protection blocking for P&C maintenance at Jasper | 175.38 Days
Continuous |
|
24-Jan-25 00:00 | 31-Dec-25 16:00 | ALTALINK | Outage | 74s C3 (74s Janet) | forced outage | 341.67 Days
Continuous |
|
10-Feb-25 00:00 | 23-Dec-25 23:00 | ATCO, ALTALINK | IO | 840s McNeill Station, 830L (562s Cypress - 840s McNeill Station), 840s 701T (840s McNeill Station), 840s 901T (840s McNeill Station) | available for emergency use only | 316.96 Days
Continuous |
AB-SK |
11-Feb-25 10:00 | 23-Jun-25 16:00 | ATCO | TE | 940s Protection & Control (940s Beartrap) | relay testing | 132.21 Days
Continuous |
|
11-Mar-25 00:00 | 31-Dec-25 16:00 | ALTALINK | Outage | 377s C1 (377s AML Hardisty) | forced outage | 295.71 Days
Continuous |
|
18-Mar-25 14:00 | 17-Mar-26 17:30 | ALTALINK | Outage | 217s C1 (217s North Red Deer) | cap. bank unavailable and cannot be energized due to Koncar CTs being present | 364.15 Days
Daily |
|
20-Mar-25 08:00 | 20-Mar-26 17:00 | ALTALINK | Outage | 263s C1 (263s Strachan) | forced outage | 365.38 Days
Continuous |
|
20-Mar-25 08:00 | 20-Mar-26 17:00 | ALTALINK | Outage | 256s C1 (256s Harmattan) | forced outage | 365.38 Days
Continuous |
|
31-Mar-25 07:00 | 07-Aug-25 17:00 | EPCOR | Outage | 987s T1 (987s Clover Bar), 987s CCP7213 (987s Clover Bar), 987s CCP7214 (987s Clover Bar) | Cloverbar - TX1 LCR | 129.42 Days
Continuous |
|
31-Mar-25 07:00 | 29-Aug-25 17:00 | EPCOR | TE | 987s Protection & Control (987s Clover Bar) | Cloverbar: protection blocking, 240 kV bus 3 differential for TX1 LCR duration | 151.42 Days
Continuous |
|
31-Mar-25 07:00 | 04-Jul-25 17:00 | EPCOR | TE | Protection & Control (Woodcroft) | Woodcroft: protection blocking for merging unit and protection upgrade. | 95.42 Days
Continuous |
|
12-May-25 08:00 | 29-Jun-25 16:00 | ENMAX | Outage | 3.84L (SS-3 - SS-13), 3B138-3.84 (SS-3), 13B138-3.84 (SS-13) | complete reconductoring of 3.84 line | 48.33 Days
Continuous |
|
12-May-25 09:00 | 17-Jun-25 20:00 | SUNCOR | TE | 29EDD-94 Protection & Control (29EDD-94 Voyageur) | block 7 relays CWP16 | 36.46 Days
Continuous |
|
14-May-25 04:01 | 14-Jul-25 07:30 | ALTALINK | Outage | 799s T3 (799s Coleman) | replace T3 | 61.15 Days
Continuous |
|
14-May-25 08:00 | 10-Feb-26 16:00 | ENMAX | TE | Protection & Control (SS-32) | 32sub 138kV autoswitching protection outage | 272.38 Days
Continuous |
|
20-May-25 07:00 | 13-Jun-25 17:00 | EPCOR | Outage | T3 (Rossdale), R723 (Rossdale), R724 (Rossdale) | Rossdale: TX3 zone LCR demo outage | 24.42 Days
Continuous |
|
21-May-25 16:00 | 08-Jul-25 17:00 | ATCO | RB | 7L20 (810s Dome Cutbank - 7L228 tap), 7L80 (740s H.R. Milner - 857s Kakwa Ridge), 7L80 (733s Simonette - 857s Kakwa Ridge) | due to damaged structure on 7L20 | 48.04 Days
Continuous |
|
25-May-25 07:00 | 01-Aug-25 17:00 | EPCOR | Outage | 987s GT2 (987s Clover Bar), 987s CGB2 (987s Clover Bar) | maintenance | 68.42 Days
Continuous |
|
25-May-25 09:00 | 14-Jun-25 14:00 | NOVACORP | Outage | 330s 330-PTR-04 (330s Nova Corp) | replacement of transformer low voltage 13.8 kV bushings and low voltage 13.8 kV bus duct | 20.21 Days
Continuous |
|
25-May-25 14:25 | 06-Jun-25 18:00 | ATCO | Outage | 6L97 (735s Swan River - 739s Edith Lake) | forced outage due to wildfire | 12.15 Days
Continuous |
|
26-May-25 07:00 | 06-Jun-25 17:00 | EPCOR | Outage | 72JM18 (EP 805s Jasper - Meadowlark), 72JW19 (EP 805s Jasper - Woodcroft), 805s T1 (805s Jasper), 805s C1 (805s Jasper), EP 805s J2401 (EP 805s Jasper), EP 805s J2403 (EP 805s Jasper), EP 805s J2408 (EP 805s Jasper), EP 805s J724 (EP 805s Jasper), EP 805s J722 (EP 805s Jasper), M721 (Meadowlark), W721 (Woodcroft), EP 805s JAB1 (EP 805s Jasper), EP 805s JAB5 (EP 805s Jasper), EP 805s JAB2 (EP 805s Jasper) | doble and disconnect maintenance and relay maintenance | 11.42 Days
Continuous |
|
26-May-25 08:00 | 15-Jun-25 16:00 | ENMAX | TE | 37.81L (SS-37 - SS-38) | 37.81L A and B protection outages - commissioning of the new relays Z31/Z32 bus diff, ASW and BMR-BT5 | 20.33 Days
Daily |
|
26-May-25 08:00 | 15-Jun-25 16:00 | ENMAX | TE | Protection & Control (SS-37) | 37sub 138 kV bus differential Z31 protection outage - decommission the old protection and commission the new protection | 20.33 Days
Continuous |
|
26-May-25 08:00 | 15-Jun-25 16:00 | ENMAX, ALTALINK | TE | 37.82L (74s Janet - SS-37) | 37.82L A and B protection outages - commissioning of the new relays Z31/Z32 bus diff, ASW and BMR-BT5 | 20.33 Days
Daily |
|
26-May-25 08:00 | 15-Jun-25 16:00 | ENMAX | TE | Protection & Control (SS-37) | 37sub 138 kV auto switching protection outage - decommission the old protection and commission the new protection | 20.33 Days
Continuous |
|
26-May-25 08:00 | 15-Jun-25 16:00 | ENMAX | TE | Protection & Control (SS-37) | 37sub BMR-82 outage - commissioning of the new relays (Z31/Z32 bus diff, ASW and BMR-BT5) | 20.33 Days
Daily |
|
26-May-25 08:00 | 15-Jun-25 16:00 | ENMAX | TE | Protection & Control (SS-37) | 37sub BMR-81 outage - commissioning of the new relays (Z31/Z32 bus diff, ASW and BMR-BT5) | 20.33 Days
Daily |
|
26-May-25 08:00 | 15-Jun-25 16:00 | ENMAX, ALTALINK | TE | 37.82L (74s Janet - SS-37) | 37.82L A and B protection outages - commissioning of the new relays Z31/Z32 bus diff, ASW and BMR-BT5 | 20.33 Days
Daily |
|
26-May-25 09:00 | 08-Jun-25 17:30 | ATCO | Outage | 2029s 1205 (2029s Heathfield), 2029s 1206 (2029s Heathfield), 2029s 1201 (2029s Heathfield), 2029s 1201A (2029s Heathfield), 2029s 1201B (2029s Heathfield), 2029s 1202 (2029s Heathfield), 2029s 1202A (2029s Heathfield), 2029s 1202B (2029s Heathfield), 2029s 1203 (2029s Heathfield), 2029s 1203A (2029s Heathfield), 2029s 1203B (2029s Heathfield), 2029s 1204 (2029s Heathfield), 2029s 1204A (2029s Heathfield), 2029s 1204B (2029s Heathfield), 2029s 1205A (2029s Heathfield), 2029s 1205B (2029s Heathfield), 2029s 1206A (2029s Heathfield), 2029s 1206B (2029s Heathfield), 2029s 1207 (2029s Heathfield), 2029s 1207A (2029s Heathfield), 2029s 1207B (2029s Heathfield), 2029s 1208 (2029s Heathfield), 2029s 1208A (2029s Heathfield), 2029s 1208B (2029s Heathfield), 2029s 1209 (2029s Heathfield), 2029s 1209A (2029s Heathfield), 2029s 1209B (2029s Heathfield), 2029s 1213A (2029s Heathfield), 2029s 1214 (2029s Heathfield), 2029s 1214A (2029s Heathfield), 2029s 1214B (2029s Heathfield), 2029s 1215 (2029s Heathfield), 2029s 1215A (2029s Heathfield), 2029s 1215B (2029s Heathfield), 2029s 1218A (2029s Heathfield), 2029s 1218 (2029s Heathfield), 2029s 1219 (2029s Heathfield), 2029s 1219A (2029s Heathfield), 2029s 1220 (2029s Heathfield), 2029s 1220A (2029s Heathfield), 2029s 1221 (2029s Heathfield), 2029s 1221A (2029s Heathfield), 2029s 1222 (2029s Heathfield), 2029s 1222A (2029s Heathfield), 2029s 1223 (2029s Heathfield), 2029s 1223A (2029s Heathfield), 2029s 1224 (2029s Heathfield), 2029s 1224A (2029s Heathfield), 2029s 1200SST1D1 (2029s Heathfield), 2029s 1200SST2D1 (2029s Heathfield), 2029s ACF1D1 (2029s Heathfield), 2029s ACF2D1 (2029s Heathfield) | annual EATL outage at 2075s & 2029s | 13.35 Days
Continuous |
|
26-May-25 09:00 | 08-Jun-25 17:30 | ATCO | Outage | 2075s 916 (2075s Newell), 2075s 917 (2075s Newell), 2075s 916B (2075s Newell), 2075s 917A (2075s Newell) | annual EATL outage at 2075s & 2029s | 13.35 Days
Continuous |
|
26-May-25 09:00 | 08-Jun-25 17:30 | ATCO | Outage | 13L50 (2029s Heathfield - 2075s Newell), 2029s T11 (2029s Heathfield), 2075s T11 (2075s Newell) | annual EATL outage at 2075s & 2029s | 13.35 Days
Continuous |
|
26-May-25 10:00 | 05-Jun-25 17:00 | ATCO | TE | 755s Protection & Control (755s Cordel) | firmware upgrade | 10.29 Days
Continuous |
|
26-May-25 10:00 | 05-Jun-25 17:00 | ATCO | TE | 755s Protection & Control (755s Cordel) | firmware upgrade | 10.29 Days
Continuous |
|
26-May-25 10:00 | 05-Jun-25 17:00 | ATCO | TE | 757s Protection & Control (757s Battle River) | firmware upgrade | 10.29 Days
Continuous |
|
26-May-25 10:00 | 05-Jun-25 17:00 | ATCO | TE | 757s Protection & Control (757s Battle River) | firmware upgrade | 10.29 Days
Continuous |
|
26-May-25 10:00 | 11-Jun-25 17:00 | ATCO | TE | 755s RTU/SCADA (755s Cordel) | firmware upgrades to SEL-RTAC, station gateway (RTU), SEL I/O modules, ethernet switch | 16.29 Days
Continuous |
|
26-May-25 10:00 | 11-Jun-25 17:00 | ATCO | TE | 755s Protection & Control (755s Cordel) | firmware upgrade on RAS A & B / 9L16 relays | 16.29 Days
Continuous |
|
26-May-25 10:00 | 11-Jun-25 17:00 | ATCO | TE | 755s Protection & Control (755s Cordel) | firmware upgrade on RAS A & B / 9L20 relays | 16.29 Days
Continuous |
|
27-May-25 17:06 | 06-Jun-25 18:00 | ATCO | Outage | 6L96 (735s Swan River - 743s Sarah Lake) | forced outage due to wildfire | 10.04 Days
Continuous |
|
29-May-25 07:23 | 06-Jun-25 18:00 | ALTALINK | Outage | 1116L (167s Ipiatik Lake - 170s Pike) | forced outage due to wildfire | 8.44 Days
Continuous |
|
29-May-25 08:00 | 08-Jun-25 20:00 | SUNCOR | Outage | 29PL6-3 (29EDD-1 Millennium - 30EDD-1), 30EDD-1 622T (30EDD-1), 30EDD-1 624T (30EDD-1), 30EDD-1 628 (30EDD-1), 30EDD-1 627 (30EDD-1), 30EDD-1 626 (30EDD-1), 30EDD-1 625 (30EDD-1), 30EDD-1 622TD (30EDD-1), 30EDD-1 624TD (30EDD-1) | 29PP-116I,J,A, B, C 5 year preventive maintenance, ; 622T; 624T pm | 10.5 Days
Continuous |
|
29-May-25 17:31 | 30-Jun-25 00:00 | BHE Canada | Outage | 120s C1 (120s Picture Butte) | forced outage | 31.27 Days
Continuous |
AB-MATL |
29-May-25 19:52 | 06-Jun-25 18:00 | ALTALINK | Outage | 971L (154s Black Spruce - 762s Conklin) | forced outage due to wildfire | 7.92 Days
Continuous |
|
31-May-25 07:00 | 07-Jun-25 17:00 | ALTALINK, EPCOR | Outage | 1056L (89s Ellerslie - 629s Argyll Transfer Station) | pole refurbishment | 7.42 Days
Continuous |
|
31-May-25 07:00 | 07-Jun-25 17:00 | ALTALINK, EPCOR | RB | 1055L (629s Argyll Transfer Station - 816s Petrolia) | pole refurbishment | 7.42 Days
Continuous |
|
31-May-25 07:00 | 07-Jun-25 17:00 | ALTALINK, EPCOR | IO | 1056L (89s Ellerslie - 629s Argyll Transfer Station) | pole refurbishment | 7.42 Days
Continuous |
|
31-May-25 07:30 | 10-Jun-25 17:30 | ALTALINK | Outage | 276s 25 (276s Prentiss) | urgent removal of Koncar CT unit #8 (A,B,C Phases) and existing live tank breaker 852 (276s25) and replace the combo set with a new 138kV dead-tank breaker | 10.42 Days
Continuous |
|
01-Jun-25 14:44 | 30-Jun-25 17:00 | ATCO | Outage | 7L94 (827s Cranberry Lake - 878s Kidney Lake) | forced outage due to wildfire | 29.09 Days
Continuous |
|
02-Jun-25 07:00 | 08-Jun-25 17:00 | EPCOR | Outage | 816s P2401 (816s Petrolia), 816s P2402 (816s Petrolia), 816s T1 (816s Petrolia), 816s PAB1 (816s Petrolia) | petrolia tx1 zone doble and disconnect maintenance | 6.42 Days
Continuous |
|
02-Jun-25 07:00 | 06-Jun-25 17:00 | EPCOR | RB | 711L (113s Inland Cement - 747L tap) | 711L reclose block, washing program | 4.42 Days
Continuous |
|
02-Jun-25 07:00 | 06-Jun-25 17:00 | ALTALINK | RB | 747L (37s North Calder - 711L tap), 747L (99s North St. Albert - 711L tap) | 711L / 747L reclose block for EPCOR serial washing program | 4.42 Days
Daily |
|
02-Jun-25 07:00 | 27-Jun-25 17:00 | EPCOR | Outage | 557s T1 (557s Castle Downs) | S/S Tx1 bay outage | 25.42 Days
Continuous |
|
02-Jun-25 07:00 | 06-Jun-25 17:00 | EPCOR | TE | 72RV2 (EP 511s Victoria - Rossdale), 72RV4 (EP 511s Victoria - Rossdale), 72RV6 (EP 511s Victoria - Rossdale) | protection firmware updates | 4.42 Days
Continuous |
|
02-Jun-25 07:00 | 08-Jun-25 19:00 | ATCO | RB | 9L20 (755s Cordel - 766s Nevis) | hold off on 9l20 to complete stringing activities on CETO project adjacent to 9L20 | 6.5 Days
Daily |
|
02-Jun-25 07:00 | 10-Jun-25 17:00 | ALTALINK | TE | 276s RTU/SCADA (276s Union Carbide Prentiss) | update 276s RTU/HMI configuration | 8.42 Days
Daily |
|
02-Jun-25 07:30 | 06-Jun-25 16:30 | ALTALINK | Outage | AML 511s 240kV ACF 1 Bus (511s Crossings), AML 511s T30 (AML 511s Crossings), AML 511s SVC Plus (AML 511s Crossings), AML 511s ACF11 (AML 511s Crossings), AML 511s ACF12 (AML 511s Crossings), AML 511s ACF13 (AML 511s Crossings), AML 511s 5352 (AML 511s Crossings), AML 511s 82 (AML 511s Crossings), AML 511s 81 (AML 511s Crossings), AML 511s 5252 (AML 511s Crossings), AML 511s 148 (AML 511s Crossings), AML 511s 152 (AML 511s Crossings), AML 511s 153 (AML 511s Crossings), AML 511s 154 (AML 511s Crossings), AML 511s 1152 (AML 511s Crossings) | 511s1652 breaker maintenance and SVC+ inspections and maintenance | 4.38 Days
Continuous |
|
02-Jun-25 07:30 | 05-Jun-25 17:30 | ALTALINK | RB | 113L (20s Ghost - 33s Spray) | component replacement str 114-193. | 3.42 Days
Daily |
|
02-Jun-25 08:00 | 15-Jun-25 16:00 | ENMAX | Outage | 37.81L (SS-37 - SS-38), 37.1TR (SS-37), 37MD138-37.1TR (SS-37), 37B138-37.81 (SS-37) | 37sub Capacity Upgrade. Commission new relays (Z31/Z32 bus diff, ASW and BMR-BT5), remove the temporary 138kV bus and install risers to BT5. 37B138-37BT5, 37.3TR 138kV bus, new 37PT138-Z31, new 138kV switches in service on return. | 13.33 Days
Continuous |
|
02-Jun-25 08:00 | 07-Jun-25 08:00 | ATCO, CNRL | Outage | 859s 701T (859s Primrose), 859s 701TD (859s Primrose), 859s 704 (859s Primrose), 859s 701 (859s Primrose) | perform maintenance activities in 859S. | 5 Days
Continuous |
|
02-Jun-25 08:00 | 08-Jun-25 17:00 | ATCO, CNRL | TE | 859s Protection & Control (859s Primrose), 859s RTU/SCADA (859s Primrose) | perform maintenance activities in 859S. | 6.38 Days
Continuous |
|
02-Jun-25 08:00 | 05-Jun-25 16:00 | ATCO | RB | 7L39 (722s Crystal Lake - 7LA39 tap), 7L39 (811s Clairmont Lake - 7LA39 tap) | 7L39 climbing inspection | 3.33 Days
Continuous |
|
02-Jun-25 08:00 | 10-Jun-25 16:00 | ENMAX | Outage | 21.61L (SS-21 - SS-34), 21B69-21.61 (SS-21) | 21.61L line protection replacement | 8.33 Days
Continuous |
|
02-Jun-25 08:00 | 05-Jun-25 16:00 | ENMAX | Outage | 38.2TR (SS-38) | power factor test, secondary cable test, transformer maintenance, relay fault pressure test and oil sampling MT, TC | 3.33 Days
Continuous |
|
02-Jun-25 08:00 | 05-Jun-25 16:00 | ENMAX | Outage | 9.83L (SS-9 - SS-43), 9B138-9.83 (SS-9), 43B138-9.83 (SS-43) | breaker maintenance 43B138-9.83, 9B138-9.83 and replace stand-off insulator | 3.33 Days
Continuous |
|
02-Jun-25 08:00 | 12-Jun-25 18:00 | ALTALINK | Outage | 928L (17s Benalto - 42s Sarcee) | 21 sub expansion - Iconic civil work, drilling ground wells in vicinity of the line. | 10.42 Days
Continuous |
|
02-Jun-25 08:00 | 06-Jun-25 16:00 | ENMAX | Outage | 9.2TR (SS-9) | power factor test, secondary cable test, transformer maintenance, relay fault pressure test and oil sampling MT, TC | 4.33 Days
Continuous |
|
02-Jun-25 08:00 | 07-Jun-25 17:30 | ALTALINK | TE | 678s RTU/SCADA (678s Okotoks) | download updated configuration, and complete points check, install and commission new port server | 5.4 Days
Daily |
|
02-Jun-25 08:00 | 16-Jun-25 16:00 | Syncrude | Outage | AL-1 (Aurora - D05), 260kV Bus 1 (D05), T1 (D05 Syncrude), D05 517 (D05), D05 519 (D05), 213 (Aurora), 211 (Aurora), D05 511 (D05), D05 71 (D05), D05 71A (D05), D05 511A (D05), D05 519A (D05), D05 510 (D05), D05 520 (D05), D05 517A (D05), 89-215 (Aurora), D05 519B (D05) | urgent 6 year zone PM | 14.33 Days
Continuous |
|
02-Jun-25 08:00 | 05-Jun-25 16:00 | ATCO | RB | 7L51 (788s Hotchkiss - 927s Buchanan Creek), 7L51 (ATC 793s West Peace River - 927s Buchanan Creek) | walk up and climbing inspection | 3.33 Days
Continuous |
|
02-Jun-25 09:00 | 12-Jun-25 18:00 | ALTALINK | Outage | 799L (235s Entwistle - 443s South Mayerthorpe) | 799L rebuild (str 858-889) | 10.38 Days
Continuous |
|
02-Jun-25 09:00 | 05-Jun-25 17:00 | ATCO | RB | 7L92 (709s Vegreville - 7LA92 tap), 7L92 (777s Vilna - 7LA92 tap), 7L92 (777s Vilna - 819s Whitby Lake) | climbing inspection on 7L92 | 3.33 Days
Daily |
|
02-Jun-25 09:00 | 12-Jun-25 20:00 | SUNCOR | TE | 29EDD-94 RTU/SCADA (29EDD-94 Voyageur), Suncor PMU | fiber circuit testing at 29EDD-94 to investigate/fix the issues on PMU data | 10.46 Days
Continuous |
|
02-Jun-25 10:00 | 20-Jun-25 17:30 | ATCO | TE | 813s Protection & Control (813s Little Smoky), 813s RTU/SCADA (813s Little Smoky) | update DFR for AESO streaming , replace 700PT disconnects , wire 700PTY2 to DFR2 , replace 704PT disconnects , wire 704PTY2 to DFR2 and install new satellite clock - SCADA updates |
18.31 Days
Continuous |
|
02-Jun-25 10:00 | 05-Jun-25 17:00 | ATCO | TE | 755s Protection & Control (755s Cordel) | firmware upgrade on 87L-21A/9L953.and end to end testing | 3.29 Days
Continuous |
|
02-Jun-25 12:00 | 06-Jun-25 17:00 | ATCO | TE | 716s Protection & Control (716s Lloydminster), 716s RTU/SCADA (716s Lloydminster) | settings updates to 701T, new alarm points, RTU updates required,lose visibility for 5-10 minutes | 4.21 Days
Continuous |
|
02-Jun-25 13:00 | 05-Jun-25 17:00 | ALTALINK | TE | 574s Protection & Control (574s Nilrem) | update FW and end to end testing on the following relay A87/21/L4 | 3.17 Days
Daily |
|
03-Jun-25 07:30 | 05-Jun-25 16:30 | ALTALINK, ENEL | Outage | 205s T2 (205s Castle Rock Ridge), 205s C1 (205s Castle Rock Ridge), 205s 52M2 (205s Castle Rock Ridge), 205s 89T2 (205s Castle Rock Ridge), 205s 89F11 (205s Castle Rock Ridge), 205s 89F12 (205s Castle Rock Ridge), 205s 89F13 (205s Castle Rock Ridge), 205s 89R11 (205s Castle Rock Ridge) | facilitate 240 kV CTPT replacement, MPT leak repair, and annual maintenance checklist items | 2.38 Days
Continuous |
|
03-Jun-25 07:30 | 05-Jun-25 16:00 | ENMAX | TE | Protection & Control (SS-21) | 21sub 69 kV bus differential protection outage - 21.61L line protection replacement | 2.35 Days
Continuous |
|
03-Jun-25 08:00 | 10-Jun-25 17:00 | ALTALINK, BCH | Outage | 1L274 (BCH Natal - BCH Line Creek tap) | NTL station rebuild stage 6.2 - BC maintenance does not affect the Alberta ATC
|
7.38 Days
Continuous |
AB-BC |
03-Jun-25 08:00 | 06-Jun-25 17:00 | ALTALINK | RB | 757L (17s Benalto - 758L tap), 757L (297s Rimbey - 758L tap) | replacing Arms and Insulation on 757L STRs 62-273 | 3.38 Days
Daily |
|
03-Jun-25 09:00 | 10-Jun-25 17:00 | ALTALINK, BCH | Outage | 1L274 (BCH Natal - BCH Line Creek tap) | replace end-of-life SPAR crossarms - BC maintenance does not affect the Alberta ATC
|
7.33 Days
Continuous |
AB-BC |
03-Jun-25 09:00 | 05-Jun-25 18:00 | ALTALINK | Outage | 331s T2 (331s Ponoka) | doble, maintenance, qualitrol repair, bird coverup, cooper cutout replacements (331s42, 331s43) | 2.38 Days
Continuous |
|
03-Jun-25 09:00 | 10-Jun-25 20:00 | SUNCOR | TE | 29EDD-34 29PT-340 (29EDD-34), 29EDD-34 29PT-341 (29EDD-34) | re-calibrate SE-330 for 29EDD-34 29PT-340 and 29PT-341 | 7.46 Days
Continuous |
|
03-Jun-25 14:58 | 14-Jun-25 00:00 | ATCO | Outage | 888s 919C (888s Dover) | forced outage due to ravens nest | 10.38 Days
Continuous |
|
03-Jun-25 19:01 | 10-Jun-25 17:00 | ALTALINK, BCH | Outage | 1L274 (BCH Natal - BCH Line Creek tap), 1CB1 (BCH Natal) | NTL station upgrade project - EVR owned 60L288 OOS to remove conductors above on 1L274 and 1L274-old | 6.92 Days
Continuous |
AB-BC |
04-Jun-25 07:00 | 11-Jun-25 16:00 | EPCOR | Outage | 987s GT3 (987s Clover Bar) | metering upgrade | 7.38 Days
Continuous |
|
04-Jun-25 08:00 | 10-Jun-25 18:00 | SUNCOR | Outage | 29PL7-5 (29EDD-18 Firebag - 29EDD-71), 29EDD-71 752-4613 (29EDD-71), 29EDD-71 752-4614 (29EDD-71) | PRC-5 testing | 6.42 Days
Continuous |
|
04-Jun-25 08:00 | 05-Jun-25 16:00 | ENMAX | Outage | 16.1TR (SS-16) | 16 sub 69 kV PT outage - tap changer inspection, reversing switch check, oil sampling MT, TC | 1.33 Days
Continuous |
|
04-Jun-25 08:00 | 05-Jun-25 15:00 | ALTALINK | TE | 39s Protection & Control (39s Bickerdike) | move and function test the reclose signals from the AltaLink A87/21/79_1135L, B87/21_1135L, A87/21/79_1168L, & B87/21/79_1168L | 31 Hours
Daily |
|
04-Jun-25 08:30 | 06-Jun-25 16:00 | ATCO | TE | 933s Protection & Control (933s Tower Road) | change relay settings on 7L165 | 2.31 Days
Continuous |
|
04-Jun-25 08:30 | 06-Jun-25 16:00 | ATCO | TE | 848s Protection & Control (848s Ruth Lake) | change relay settings on 7L47 | 2.31 Days
Continuous |
|
04-Jun-25 09:00 | 05-Jun-25 18:00 | Saskpower | Outage | SASK POWER P2C | maintenance | 1.38 Days
Continuous |
AB-SK |
04-Jun-25 09:30 | 05-Jun-25 17:30 | ATCO | Outage | 813s 706 (813s Little Smoky) | trip coil testing | 1.33 Days
Continuous |
|
04-Jun-25 10:00 | 08-Jun-25 16:00 | ATCO | TE | 791s RTU/SCADA (791s Rainbow Lake), 791s Protection & Control (791s Rainbow Lake) | UFLS settings updates | 4.25 Days
Continuous |
|
05-Jun-25 08:00 | 10-Jun-25 18:00 | SUNCOR | Outage | 635EDD-1000 144kV Bus 635PP-1000 (635EDD-1000), 635EDD-1000 635PT-1000 (635EDD-1000), 635EDD-1000 635PS-1002 (635EDD-1000), 635EDD-1000 635PS-1004 (635EDD-1000), 635EDD-1000 635PS-1010 (635EDD-1000), 635EDD-1000 635PS-1022 (635EDD-1000), 635EDD-1000 635PS-1026 (635EDD-1000), 635EDD-1000 635PS-1030 (635EDD-1000), 635EDD-1000 635PS-1016 (635EDD-1000), 635EDD-1000 635-752-635PT-1000 (635EDD-1000), 635EDD-1000 635PS-9520 (635EDD-1000), 635EDD-1000 635-752-111 (635EDD-1000), 635EDD-1000 635-752-121 (635EDD-1000), 635EDD-1000 635-752-131 (635EDD-1000), 635EDD-1000 635-752-142 (635EDD-1000), 635EDD-1000 635-752-152 (635EDD-1000), 635EDD-1000 635-752-161 (635EDD-1000) | 635PP-1000 bus maintenance | 5.42 Days
Continuous |
|
05-Jun-25 08:00 | 05-Jun-25 16:00 | ALTALINK | Outage | 864AL (346s Kaybob - 864L tap), 864BL (355s Chevron Knight - 864L tap), 864L (397s Benbow - 864AL tap), 864L (551s Chevron Kaybob - 864BL tap), 551s T1 (551s Chevron Kaybob), 346s T1 (346s Kaybob), 355s T1 (355s Chevron Knight), 355s T2 (355s Chevron Knight) | create open points and PCB oil samples from bushings and bus PTs, investigate 551s864N operating issue | 8 Hours
Daily |
|
05-Jun-25 08:00 | 06-Jun-25 10:30 | ATCO | TE | 800s Protection & Control (800s Friedenstal) | relay settings changes on 701T and 702T B, breaker fail firmware, settings, and testing | 26.5 Hours
Continuous |
|
05-Jun-25 08:30 | 06-Jun-25 16:00 | ATCO | Outage | 791s 701 (791s Rainbow Lake), 7L122 (791s Rainbow Lake - 930s Arcenciel) | PRC-005 - trip coil testing, SF6 HGF complete testing | 31.5 Hours
Continuous |
|
05-Jun-25 09:00 | 05-Jun-25 12:00 | ATCO | Outage | 718s 701 (718s Parsons Creek) | PRC-005 - TRIP COIL TESTING - BREAKER 701 @ 718S will close 700D2 to keep 7L47 and 7L165 energized |
3 Hours
Continuous |
|
05-Jun-25 09:00 | 06-Jun-25 14:00 | ENMAX | Outage | 31.84L (SS-31 - SS-32), 32B138-31.84 (SS-32), 31B138-31.84 (SS-31) | grounding improvements. Replace both existing overhead shield wire connections to A-frames | 29 Hours
Continuous |
|
05-Jun-25 09:00 | 05-Jun-25 17:00 | ATCO | TE | 925s RTU/SCADA (925s Green Stocking) | RTU configuration updates | 8 Hours
Continuous |
|
05-Jun-25 10:00 | 05-Jun-25 12:00 | ALTALINK | TE | AltaLink RTU/SCADA (AltaLink) | RigSat needs to remotely upgrade our satellite equipment | 2 Hours
Daily |
|
05-Jun-25 15:00 | 25-Nov-25 15:30 | ALTALINK | Outage | 397s 864W (397s Benbow) | new 864L line construction, new 397s48 (VT6) install | 173.06 Days
Continuous |
|
05-Jun-25 15:00 | 23-Jun-25 09:00 | ALTALINK | Outage | 355s T1 (355s Chevron Knight), 355s T2 (355s Chevron Knight) | maintenance, salvage 4.16kV cable bus associated with T2 | 17.75 Days
Continuous |
|
07-Jun-25 07:00 | 08-Jun-25 17:30 | ALTALINK | Outage | 223L (150s Clyde - 159s Colinton), 150s 223N (150s Clyde), 159s 223 (159s Colinton) | replacing cross arms and insulators on structures 177, 301 & 333 | 1.44 Days
Continuous |
|
07-Jun-25 08:00 | 10-Jun-25 20:00 | SUNCOR | Outage | 29PL9-3 (29EDD-1 Millennium - 29EDD-3), 29EDD-1 29EDD1s552 (29EDD-1 Millennium), 29EDD-1 29EDD1s652 (29EDD-1 Millennium), 29EDD-1 29EDD1SPL9-3 (29EDD-1 Millennium) | PRC-005 check | 3.5 Days
Continuous |
|
07-Jun-25 08:00 | 10-Jun-25 14:00 | ENMAX | Outage | 9.2TR (SS-9) | grounding improvements, install new surge arrestor insulator supports, and grounding, tap changer inspection - 9.2-TC | 3.25 Days
Continuous |
|
07-Jun-25 08:30 | 08-Jun-25 16:00 | ATCO | TE | 791s Protection & Control (791s Rainbow Lake) | PRC-005 - relay testing - 50BF/701, 87L-21A/7L122 at 791s | 31.5 Hours
Continuous |
|
08-Jun-25 08:00 | 08-Jun-25 18:00 | ENMAX | Outage | 20.82L (SS-20 - SS-21), 20.3TR (SS-20), 21B138-20.82 (SS-21), SW84 (SS-20), 20MD138-20.3TR (SS-20) | spring substation washing, check reversing switch | 10 Hours
Continuous |
|
08-Jun-25 09:00 | 10-Jun-25 09:00 | ENMAX | Outage | 9.80L (SS-9 - SS-31), 9B138-9.80 (SS-9), 31B138-9.80 (SS-31) | grounding improvements, replace both existing overhead shield wire connections to A-frames | 2 Days
Continuous |
|
08-Jun-25 20:01 | 19-Jun-25 20:00 | SUNCOR | Outage | 29PL6-2 (30EDD-1 - 29EDD-55), 30EDD-1 622T (30EDD-1), 30EDD-1 626 (30EDD-1), 30EDD-1 625 (30EDD-1), 30EDD-1 624 (30EDD-1), 30EDD-1 622TD (30EDD-1), 30EDD-1 29PL6-2CS (30EDD-1) | 5 year preventive maintenance | 11 Days
Continuous |
|
09-Jun-25 07:00 | 20-Jun-25 17:00 | EPCOR | Outage | 657s T2 (657s Summerside) | Summerside - TX2 DGA LCR | 11.42 Days
Continuous |
|
09-Jun-25 07:00 | 13-Jun-25 17:00 | EPCOR | Outage | RG7210 (Rossdale), 72RG1 (Garneau - Rossdale), GDS18 (Garneau) | Rossdale/RG1: RG7210 breaker fail upgrade cut overs | 4.42 Days
Continuous |
|
09-Jun-25 07:00 | 27-Jun-25 17:00 | EPCOR | Outage | 52s E2401 (52s East Industrial), 52s T1 (52s East Industrial) | East Industrial: transformer T1 protection upgrade cutovers | 18.42 Days
Continuous |
|
09-Jun-25 07:00 | 20-Jun-25 17:00 | EPCOR | Outage | T3 (Woodcroft), W724 (Woodcroft), W722 (Woodcroft) | Woodcroft: Transformer T3 zone, protection upgrade cutovers | 11.42 Days
Continuous |
|
09-Jun-25 07:00 | 10-Jun-25 18:00 | ATCO, CNRL | Outage | 859s 702 (859s Primrose) | isolate and test breaker 702 in 859s | 1.46 Days
Continuous |
|
09-Jun-25 07:00 | 15-Jun-25 17:00 | EPCOR | Outage | H726 (EP Hardisty), EP 803s L721 (EP 803s Lambton), S724 (Strathcona), S723 (Strathcona), T3 (Strathcona), 72LH8 (EP 803s Lambton - EP Hardisty), 72LS24 (EP 803s Lambton - Strathcona), SDS10 (Strathcona), SAB3 (Strathcona) | Lambton/Strathcona/Hardisty: LH8 zone doble and relay maintenance, LS24 zone doble, strathcona TX3 doble, LDS13/SDS10/SDS8/SDS9/SAB3/HDS13 disconnect maintenance | 6.42 Days
Continuous |
|
09-Jun-25 07:00 | 15-Jun-25 19:00 | ATCO | RB | 9L20 (755s Cordel - 766s Nevis) | complete stringing activities on CETO project adjacent to 9L20 | 6.5 Days
Daily |
|
09-Jun-25 07:00 | 01-Aug-25 17:00 | EPCOR | TE | 330p Protection & Control (330p Genesee) | 138/500 kV protection blocking for relay maintenance | 53.42 Days
Continuous |
|
09-Jun-25 07:00 | 15-Aug-25 17:00 | EPCOR | TE | Protection & Control (Poundmaker) | protection blocking for relay maintenance | 67.42 Days
Continuous |
|
09-Jun-25 07:30 | 13-Jun-25 17:30 | ALTALINK | RB | 514L (396s Pincher Creek - 514BL tap), 514L (513s Lundbreck - 514BL tap) | component replacement on 514L (str 16-186)& (str 452-453) - live line work | 4.42 Days
Daily |
|
09-Jun-25 08:00 | 23-Jun-25 17:00 | ATCO | TE | 808s Protection & Control (808s Procter & Gamble) | 7L13 21B relay replacement | 14.38 Days
Continuous |
|
09-Jun-25 08:00 | 23-Jun-25 17:00 | ATCO | TE | 845s Protection & Control (845s Big Mountain), 845s RTU/SCADA (845s Big Mountain) | 7L13 21B relay replacement and RTU changes required to incorporate new 21B relay | 14.38 Days
Continuous |
|
09-Jun-25 08:00 | 12-Jun-25 16:00 | ATCO | RB | 7L61 (780s Lubicon - 796s Nipisi) | climbing inspection | 3.33 Days
Continuous |
|
09-Jun-25 08:00 | 10-Jun-25 16:00 | ENMAX | Outage | 33.83L (SS-33 - SS-41), 41B138-33.83 (SS-41) | breaker maintenance - 41B138-33.83 | 1.33 Days
Continuous |
|
09-Jun-25 08:00 | 12-Jun-25 16:00 | ENMAX | Outage | 43.1TR (SS-43) | tap changer inspection,.reversing switch check and oil sampling | 3.33 Days
Continuous |
|
09-Jun-25 08:00 | 12-Jun-25 16:00 | ENMAX | Outage | 13.2TR (SS-13) | transformer power factor test, secondary cable test, transformer maintenance, relay fault pressure test, reversing switch check and oil sampling | 3.33 Days
Continuous |
|
09-Jun-25 08:00 | 12-Jun-25 16:00 | ENMAX | Outage | 5.1TR (SS-5) | transformer power factor test, secondary cable test, transformer maintenance and relay fault pressure test | 3.33 Days
Continuous |
|
09-Jun-25 08:00 | 09-Jun-25 16:00 | ENMAX | TE | RTU/SCADA (SS-33) | upgrade SDN | 8 Hours
Continuous |
|
09-Jun-25 09:00 | 10-Jun-25 16:00 | ATCO | Outage | 700s 707C (700s Bonnyville) | breaker maintenance | 31 Hours
Continuous |
|
09-Jun-25 09:00 | 13-Jun-25 17:00 | BCH | Outage | 5L75 (BCH Ashton Creek - BCH Revelstoke G.S.) | replace damaged insulators, BC Hydro maintenance does not affect the Alberta ATC | 4.33 Days
Continuous |
AB-BC |
09-Jun-25 09:30 | 12-Jun-25 16:30 | ATCO | Outage | 7L92 (777s Vilna - 7LA92 tap) | Interphase spacers and climbing inspection | 3.29 Days
Continuous |
|
09-Jun-25 09:30 | 13-Jun-25 17:30 | ATCO | Outage | 764s 701 (764s Heisler), 764s 701T (764s Heisler) | maintenance and testing on transformer, tap changer and breaker | 4.33 Days
Continuous |
|
09-Jun-25 09:30 | 10-Jun-25 17:30 | ATCO | Outage | 801s 902 (801s Anderson) | breaker min oil HLR partial testing | 1.33 Days
Continuous |
|
09-Jun-25 10:00 | 10-Jun-25 17:30 | ATCO | Outage | 813s Little Smoky 144kV Bus 1 | DFR updates for AESO streaming - Replace 700PT disconnects - Wire 700PTY2 to DFR2 |
31.5 Hours
Continuous |
|
09-Jun-25 10:00 | 10-Jun-25 20:00 | SUNCOR | TE | 29EDD-94 RTU/SCADA (29EDD-94 Voyageur) | check PMU data collection - AESO not receiving DATA from Voyageur | 1.42 Days
Continuous |
|
09-Jun-25 11:00 | 09-Jun-25 17:00 | ALTALINK | TE | 59s Protection & Control (59s Peigan) | investigate/repair 956L protection communication trouble between 59s and 103s | 6 Hours
Daily |
|
09-Jun-25 11:00 | 09-Jun-25 17:00 | ALTALINK | TE | 103s Protection & Control (103s Goose Lake) | investigate/repair 956L protection communication trouble between 59s and 103s | 6 Hours
Daily |
|
09-Jun-25 12:00 | 12-Jun-25 17:00 | ATCO | Outage | 951s SVC (951s Thickwood), 951s 919 (951s Thickwood Hills) | semi-annual inspection and maintenance | 3.21 Days
Continuous |
|
09-Jun-25 12:30 | 11-Jun-25 19:00 | ALTALINK | Outage | 723s 240kV Bus 2 (723s Christina Lake), 723s T2 (723s Christina Lake), 723s 252 (723s Christina Lake), 723s 652 (723s Christina Lake), 723s 12 (723s Christina Lake) | 25 kV breaker maintenance, doble, maintenance, leaks repair on transformer, replace cooper cutouts w/ new polymer cutouts and wormgear handle repair | 2.27 Days
Continuous |
|
09-Jun-25 13:00 | 12-Jun-25 17:00 | ALTALINK | Outage | 370s 23 (370s North Lethbridge) | First Trip, breaker maintenance | 3.17 Days
Continuous |
|
10-Jun-25 00:00 | 11-Jun-25 23:30 | EPCOR | Outage | T4 (Rossdale) | Rossdale - TX4 outage, for only a 4 hour period to remove TX3 from site | 1.98 Days
Continuous |
|
10-Jun-25 07:00 | 11-Jun-25 18:00 | ALTALINK | Outage | 671L (39s Bickerdike - 58s Edson) | Install new span of OPGW between 671L69 and 671L70 | 1.46 Days
Continuous |
|
10-Jun-25 07:00 | 13-Jun-25 17:00 | ALTALINK | TE | 671L (39s Bickerdike - 58s Edson) | fix the broken fibers of this OPGW and splice the new section to the existing one | 3.42 Days
Continuous |
|
10-Jun-25 07:00 | 11-Jun-25 17:00 | ALTALINK | RB | 758L (534s Eckville - 757L tap), 757L (17s Benalto - 758L tap), 757L (297s Rimbey - 758L tap) | urgent - prep work needed for 758L structure replacement taking place on June 12 | 1.42 Days
Daily |
|
10-Jun-25 08:00 | 12-Jun-25 17:00 | ATCO, CNRL | TE | 838s RTU/SCADA (838s Horizon Mining) | RTU updates | 2.38 Days
Continuous |
|
10-Jun-25 08:00 | 12-Jun-25 17:00 | CNRL | TE | 842s RTU/SCADA (842s Horizon Upgrading) | RTU updates | 2.38 Days
Continuous |
|
10-Jun-25 08:00 | 11-Jun-25 17:00 | ALTALINK | TE | 405s Protection & Control (405s Waupisoo) | card replacement on 405s B21/25SC/L7 (796L) | 1.38 Days
Daily |
|
10-Jun-25 08:00 | 11-Jun-25 17:00 | ALTALINK, ALPAC | TE | 282s Protection & Control (282s Grassland (Alpac)) | card replacement on 282s B21/L1 (796L) | 1.38 Days
Daily |
|
10-Jun-25 08:00 | 11-Jun-25 17:00 | ALTALINK | TE | 62s RTU/SCADA (62s Brazeau Plant), AltaLink RTU/SCADA (AltaLink) | 2025 MPLS firmware upgrade | 1.38 Days
Daily |
|
10-Jun-25 08:00 | 10-Jun-25 17:00 | ALTALINK | TE | 618s RTU/SCADA (618s Riverbend) | install new configuration on LAN-PS1 RS416 to fix outstanding deficiencies | 9 Hours
Daily |
|
10-Jun-25 08:00 | 11-Jun-25 15:00 | ALTALINK | TE | 39s Protection & Control (39s Bickerdike) | move and function test the reclose signals | 31 Hours
Daily |
|
10-Jun-25 08:00 | 11-Jun-25 17:00 | ALTALINK | TE | AltaLink Telecom Equipment | 83s Taber to 158s Vauxhall MW radio hop, increase bandwidth capacity from 25Mbps to 178Mbps, iInstall new IRU600V4 to salvage existing IRU600 | 1.38 Days
Daily |
|
11-Jun-25 06:00 | 11-Jun-25 17:00 | ATCO | IO | ATCO RTU/SCADA | SOC2 backup control centre activation |
11 Hours
Continuous |
|
11-Jun-25 07:00 | 12-Jun-25 12:00 | ATCO, CNRL | Outage | 859s 703 (859s Primrose) | Testing of breaker 703 trip coils for PRC-005 | 29 Hours
Continuous |
|
11-Jun-25 07:00 | 11-Jun-25 18:00 | ALTALINK, EPCOR | Outage | 1139L (367s Harry Smith - EP Riverview) | ALTALINK - 1139L - GOI @ RIVERVIEW | 11 Hours
Continuous |
|
11-Jun-25 08:00 | 12-Jun-25 16:00 | ENMAX | Outage | 33.84L (SS-33 - SS-43), 43B138-33.84 (SS-43) | HV Breaker Maintenance - 43B138-33.84 | 1.33 Days
Continuous |
|
11-Jun-25 08:00 | 11-Jun-25 17:00 | ALTALINK | TE | 799s RTU/SCADA (799s Coleman) | coordinated failover to expand RTU database | 9 Hours
Daily |
|
11-Jun-25 08:00 | 12-Jun-25 17:00 | ALTALINK | TE | 368s RTU/SCADA (368s Burdett) | replacing LAN ES1 | 1.38 Days
Daily |
|
11-Jun-25 08:00 | 12-Jun-25 19:00 | CascadeP | Trans Test | 1047s GS003 (1047s Whisky Jack), 1047s GS005 (1047s Whisky Jack) | POW testing | 1.46 Days
Continuous |
|
11-Jun-25 08:00 | 11-Jun-25 17:00 | ALTALINK | TE | AltaLink Telecom Equipment | 2025 MPLS firmware upgrade at 62s Brazeau. The work will be completed remotely by MPLS engineer. ACC Supervisory of 62s will be down during outage, 62s AGC will be rerouted in 50m/s, TPR circuits will maintain redundant protection at all times. | 9 Hours
Daily |
|
11-Jun-25 08:00 | 12-Jun-25 17:00 | ALTALINK | TE | AltaLink Telecom Equipment | Job scope: Rogers is performing a upgrade to some equipment which will result in a fiber outage between 2002s & 103s. 887L RAS & 1201L RAS & 1201L A&B, Supervisory to 48s, B1s & 1201L fault locator will be re-routed in 50ms. ACC, AESO & BC Hydro will receive RAS comm fail alarm.. | 1.38 Days
Daily |
|
11-Jun-25 08:30 | 12-Jun-25 14:00 | ENMAX | Outage | 24.81L (SS-24 - SS-31) | Grounding improvements. Replace both existing overhead shield wire connections to A-frames. | 29.5 Hours
Continuous |
|
11-Jun-25 08:30 | 11-Jun-25 17:00 | ALTALINK | TE | 35s Protection & Control (35s Rundle) | PRC maintenance on protection - 85L A21/67N/L1 | 8.5 Hours
Daily |
|
11-Jun-25 09:30 | 11-Jun-25 17:00 | ATCO | Outage | 739s 602 (739s Edith Lake), 6L11 (739s Edith Lake - 854s Swan Dive) | BREAKER SF6 PM-C PARTIAL TESTING - 602 @ 739S | 7.5 Hours
Continuous |
|
11-Jun-25 09:30 | 12-Jun-25 17:30 | ATCO | Outage | 801s 903 (801s Anderson) | BREAKER MIN OIL HLR PARTIAL TESTING - BREAKER 903 @ 801S | 1.33 Days
Continuous |
|
11-Jun-25 10:00 | 11-Jun-25 12:00 | ATCO | Outage | 717s 701 (717s Ethel Lake), 7L28 (717s Ethel Lake - 846s Grand Centre) | PRC-005 TRIP COIL TESTING | 2 Hours
Continuous |
|
11-Jun-25 10:00 | 12-Jun-25 17:30 | ATCO | Outage | 813s Little Smoky 144kV Bus 2 | DFR updates for AESO streaming - Replace 704PT disconnects - Wire 704PTY2 to DFR2 |
31.5 Hours
Continuous |
|
12-Jun-25 02:00 | 12-Jun-25 16:00 | EPCOR | Outage | 987s GT1 (987s Clover Bar), 987s CGB1 (987s Clover Bar) | metering upgrade | 14 Hours
Continuous |
|
12-Jun-25 06:00 | 12-Jun-25 18:00 | ALTALINK | Outage | 534s T1 (534s Eckville), 758L (534s Eckville - 757L tap) | URGENT Arctic arrow crew will require a GOI on 758L to replace structure 41. | 12 Hours
Daily |
|
12-Jun-25 07:00 | 13-Jun-25 17:00 | ALTALINK, EPCOR | Outage | 1045L (310p Sundance - 1045AL tap), 1045L (EP 805s Jasper - 1045AL tap), 1045AL (320p Keephills - 1045L tap), EP 805s J2407 (EP 805s Jasper), EP 805s J2406 (EP 805s Jasper) | insulator repair | 1.42 Days
Continuous |
|
12-Jun-25 07:00 | 17-Jun-25 17:00 | SUNCOR | Outage | 635EDD-1001 144kV Bus 635PP-1007 (635EDD-1001), 635EDD-1001 635PS-1081 (635EDD-1001), 635EDD-1001 635PS-1087 (635EDD-1001), 635EDD-1001 635PS-1091 (635EDD-1001), 635EDD-1001 635PS-1095 (635EDD-1001), 635EDD-1001 635PS-1101 (635EDD-1001), 635EDD-1001 635PS-1107 (635EDD-1001) | 635PP-1007 outage for maintenance | 5.42 Days
Continuous |
|
12-Jun-25 07:00 | 13-Jun-25 17:00 | ALTALINK | Outage | 1045L (310p Sundance - 1045AL tap) | 1045L: Aerial: Insulator Repair and Relay: Op Checks | 1.42 Days
Continuous |
|
12-Jun-25 07:00 | 12-Jun-25 17:00 | EPCOR | Outage | K724 (Kennedale), 72CK12 (987s Clover Bar - Kennedale) | Kennedale: K724 Switching School Training | 10 Hours
Continuous |
|
12-Jun-25 07:30 | 13-Jun-25 17:30 | ALTALINK | RB | 671L (39s Bickerdike - 58s Edson) | complete OPGW splice at structure 671L70 | 1.42 Days
Daily |
|
12-Jun-25 08:00 | 12-Jun-25 17:00 | ALTALINK | TE | 489s RTU/SCADA (489s Petro Canada Brazeau River) | 2025 MPLS firmware, chassis and raw socket upgrade at 489s Petro Canada Brazeau River | 9 Hours
Daily |
|
12-Jun-25 08:00 | 13-Jun-25 17:30 | ALTALINK | TE | 678s RTU/SCADA (678s Okotoks) | download updated configuration, and complete points check, install and commission new port server | 1.4 Days
Daily |
|
12-Jun-25 08:00 | 12-Jun-25 17:00 | ALTALINK | TE | 312s RTU/SCADA (312s Fidler) | urgent - replace failing LAN switch | 9 Hours
Daily |
|
12-Jun-25 08:30 | 14-Jun-25 19:00 | ALTALINK | Outage | 723s 240kV Bus 1 (723s Christina Lake), 723s T1 (723s Christina Lake), 723s 152 (723s Christina Lake), 723s 1652 (723s Christina Lake), 723s 4 (723s Christina Lake) | filter pack leak repair, maintenance | 2.44 Days
Continuous |
|
12-Jun-25 09:30 | 13-Jun-25 17:00 | ATCO | Outage | 739s 701 (739s Edith Lake), 7L43 (739s Edith Lake - 809s Louise Creek) | BREAKER SF6 HGF COMPLETE TESTING - 701 @ 739S | 31.5 Hours
Continuous |
|
13-Jun-25 07:00 | 13-Jun-25 18:00 | ALTALINK | Outage | 123L (19s Wabamun - 352s Onoway), 352s T1 (352s Onoway), 352s 123 (352s Onoway), 19s 123 (19s Wabamun) | repairing woodpecker damage on structures 267, 268, 269, 271 and 279 | 11 Hours
Daily |
|
13-Jun-25 08:00 | 13-Jun-25 11:00 | ENMAX | Outage | 14.83L (SS-14 - SS-36), 36B138-14.83 (SS-36) | HV breaker SF6 gas sample - 36B138-14.83 | 3 Hours
Continuous |
|
13-Jun-25 11:00 | 13-Jun-25 13:00 | ENMAX, ALTALINK | Outage | 36.81L (44s Bearspaw Plant - SS-36), 36B138-36.81 (SS-36) | HV breaker SF6 gas sample - 36B138-36.81 | 2 Hours
Continuous |
|
13-Jun-25 11:00 | 13-Jun-25 13:00 | ENMAX, ALTALINK | IO | 36.81L (44s Bearspaw Plant - SS-36) | HV breaker SF6 gas sample - 36B138-36.81 | 2 Hours
Daily |
|
13-Jun-25 13:00 | 13-Jun-25 16:00 | ENMAX | Outage | 36B138-36BT3 (SS-36) | HV breaker SF6 gas sample - 36B138-36BT3 | 3 Hours
Continuous |
|
13-Jun-25 17:00 | 11-Feb-26 17:00 | EPCOR | Outage | T3 (Rossdale) | Rossdale - TX3 LCR | 243.04 Days
Continuous |
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. © 2009 Alberta Electric System Operator. All rights reserved |