Alberta Electric System Operator | |
Long Range Significant Transmission Outages for the period of 24 months starting 2025-02-15 | |
The table below contains the significant transmission outages submitted as tentative to the AESO. These Outages have not yet necessarily been approved, but are listed for awareness and coordination purposes. An Outage has been considered significant for this table if it meets any one (1) or more of the following criteria: |
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Note: Where a transmission outage requires generation curtailments, the adjustments to generation will typically happen in the hours before the scheduled transmission outage and in the hour after the element is returned to service. | |
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Owner | From | To | Duration | Element | Scheduled Activity | Affected Intertie |
---|---|---|---|---|---|---|
ATCO, ALTALINK | 04-Oct-24 01:05 | 05-May-25 12:00 | Continuous |
213.45 Days
840s McNeill Station, 830L (562s Cypress - 840s McNeill Station), 840s 701T (840s McNeill Station), 840s 901T (840s McNeill Station), 840s 702C (840s McNeill Station), 840s 703C (840s McNeill Station) | forced outage | AB-SK |
BHE Canada | 05-Oct-24 00:00 | 30-Apr-25 17:00 | 207.71 Days
Continuous |
120s C1 (120s Picture Butte) | forced outage | |
EPCOR | 13-Jan-25 07:00 | 14-Mar-25 17:00 | 60.38 Days
Continuous |
987s T2 (987s Clover Bar), 987s C2406 (987s Clover Bar), 987s C2410 (987s Clover Bar), 987s C2409 (987s Clover Bar), 987s CC721 (987s Clover Bar), 987s CDS45 (987s Cloverbar), 987s CDS31 (987s Clover Bar) | Cloverbar TX2 and 1191L bay outage | |
BCH | 10-Feb-25 09:00 | 28-Feb-25 17:00 | 18.33 Days
Continuous |
2CB1 (BCH Natal) | NTL station rebuild | AB-BC |
BCH | 10-Feb-25 09:00 | 14-Mar-25 17:00 | 32.29 Days
Continuous |
T3 (BCH Natal) | NTL Station Rebuild. T3 OOS for PN replacement | AB-BC |
ATCO | 10-Feb-25 10:00 | 17-Feb-25 08:00 | 6.92 Days
Continuous |
7L32 (811s Clairmont Lake - 862s South Bezanson) | changing rotten X arms and rotten poles | |
ENMAX, ALTALINK | 11-Feb-25 09:00 | 21-Feb-25 17:00 | 10.33 Days
Continuous |
1109L (SS-25 - SS-65), 240kV West Bus (SS-25), 25B240-D133 (SS-25), 25B240-D136 (SS-25), 25B240-D142 (SS-25), 25B240-D141 (SS-25), 25B240-D139 (SS-25), 65MD240-1109 (SS-65) | 25s 240kV West Bus and 1109L outage required due to clearances while placing new cables onto strs (1109L STR1 and C25s). | |
ENMAX, ALTALINK | 11-Feb-25 09:00 | 21-Feb-25 17:00 | 10.33 Days
Continuous |
240kV West Bus (SS-25), 1109L (SS-25 - SS-65) | Altalink outage. 25s 240kV West Bus and 1109L outage required due to clearances while placing new cables onto strs (1109L STR1 and C25s). Enmax to install grounds at 25s. | |
CUB, ALTALINK | 12-Feb-25 09:00 | 18-Feb-25 09:00 | 6 Days
Daily |
672s 902T (672s Fengate Co-Generation), 430s 689 (430s Ursus) | AESO compliance testing | |
ALTALINK | 15-Feb-25 07:00 | 15-Feb-25 18:00 | 11 Hours
Daily |
702L (137s Sedgewick - 757s Battle River), 137s 169X (137s Sedgewick) | Replace structure 84. | |
ATCO | 15-Feb-25 07:00 | 15-Feb-25 18:00 | 11 Hours
Continuous |
7L702 (137s Sedgewick - 757s Battle River) | AltaLink Scope: Replace structure 84. Isolate line for AltaLink |
|
ENMAX, ALTALINK | 16-Feb-25 08:00 | 16-Feb-25 16:00 | 8 Hours
Continuous |
28.80L (42s Sarcee - SS-28), 28B138-28.80 (SS-28) | Commission 28.1TR protection | |
ALTALINK | 17-Feb-25 07:30 | 17-Feb-25 17:30 | 10 Hours
Continuous |
763L (28s West Brooks - 763AL tap) | Urgent outage to remove bird's nest and install bird deterrents on Structure #75 | |
ALTALINK | 17-Feb-25 10:00 | 20-Feb-25 15:30 | 3.23 Days
Continuous |
225L (67s Stirling - 225AL tap), 225L (225s Magrath - 225AL tap), 225AL (313s Raymond Reservoir - 225L tap) | I-313s Raymond Substation outage for maintenance testing | |
ALTALINK | 17-Feb-25 12:01 | 03-Mar-25 12:30 | 14.02 Days
Continuous |
199L (347s AML Fox Creek - 741s ATC Fox Creek) | Fox Creek Substation Upgrade project. Demo old cables, install and terminate new cables, cut over to new protection. | |
ALTALINK, EPCOR | 18-Feb-25 07:00 | 19-Feb-25 17:00 | 1.42 Days
Continuous |
1044L (EP 805s Jasper - 816s Petrolia), 816s P2405 (816s Petrolia), 816s P2406 (816s Petrolia) | Petrolia: 1044L Zone PDS10/PDS14/PDS15 Disconnect Maintenance | |
SUNCOR | 18-Feb-25 08:00 | 19-Feb-25 20:00 | 1.5 Days
Continuous |
29EDD-34 29-952-113 (29EDD-34) | (BP) Corey - 9000750394 29EDD34 29-952-113 PRC5 Checks - REG | |
ATCO | 18-Feb-25 08:00 | 03-Mar-25 12:00 | 13.17 Days
Continuous |
9L10 (876s Brintnell - 939s Livock) | Line to Ground Mitigation | |
SUNCOR | 19-Feb-25 08:00 | 20-Feb-25 20:00 | 1.5 Days
Continuous |
29EDD-34 29-952-142 (29EDD-34) | (BP) Corey - 9000750399 29EDD34 29-952-142 PRC5 Checks-REG | |
EPCOR | 20-Feb-25 07:00 | 20-Feb-25 17:00 | 10 Hours
Continuous |
557s T2 (557s Castle Downs) | Castledowns: TX2 Secondary Box Measurements w/Engineering | |
EPCOR | 20-Feb-25 07:00 | 20-Feb-25 17:00 | 10 Hours
Continuous |
816s T1 (816s Petrolia) | Petrolia: TX1 MV Switchgear Maintenance | |
SUNCOR | 20-Feb-25 08:00 | 21-Feb-25 20:00 | 1.5 Days
Continuous |
29EDD-34 29-752-121 (29EDD-34) | (BP) Corey - 9000750395 29EDD34 29-752-121 PRC5 Checks-REG | |
ATCO, ALTALINK | 20-Feb-25 10:00 | 20-Feb-25 12:00 | 2 Hours
Continuous |
7L77 (395s North Holden - 709s Vegreville), 709s 704 (709s Vegreville) | PRC-005 TRIP COIL TESTING BREAKER 704 | |
EPCOR | 21-Feb-25 07:00 | 21-Feb-25 17:00 | 10 Hours
Continuous |
816s T2 (816s Petrolia) | Petrolia: TX2 MV Switchgear Maintenance | |
SUNCOR | 21-Feb-25 08:00 | 22-Feb-25 20:00 | 1.5 Days
Continuous |
29EDD-34 29-952-131 (29EDD-34) | (BP) Corey - 9000750396 29EDD34 29-952-131 PRC5 Checks-REG | |
ALTALINK, TRANSALTA | 22-Feb-25 07:00 | 22-Feb-25 16:00 | 9 Hours
Continuous |
33s 138kV Bus (33s Spray), 33s T1 (33s Spray), 33s T2 (33s Spray) | Replace 33s1 CT13 "C" Phase. Remove old TAU communication cable. | |
ALTALINK, TRANSALTA | 22-Feb-25 08:00 | 22-Feb-25 17:00 | 9 Hours
Daily |
33s T2 (33s Spray) | maintenance | |
SUNCOR | 22-Feb-25 08:00 | 23-Feb-25 20:00 | 1.5 Days
Continuous |
29EDD-34 29-952-141 (29EDD-34) | (BP) Corey - 9000750397 29EDD34 29-952-141 PRC5 Checks-REG | |
ALTALINK, TRANSALTA | 22-Feb-25 16:00 | 23-Feb-25 16:00 | 24 Hours
Daily |
33s T1 (33s Spray), 33s 1 (33s Spray) | Continuation - Replace CT13 "C" Phase. Continue outage to commission new CT. | |
EPCOR | 24-Feb-25 07:00 | 24-Feb-25 17:00 | 10 Hours
Continuous |
PM2405 (Poundmaker) | Poundmaker: PM2405 NAIT Student Substation Tour | |
EPCOR | 24-Feb-25 07:00 | 28-Feb-25 17:00 | 4.42 Days
Continuous |
T1 (EP Riverview), RW2401 (EP Riverview), RW2405 (EP Riverview) | Riverview: TX1 Zone Relay Maintenance and Temp Gauge Calibration | |
ATCO | 24-Feb-25 07:00 | 13-Mar-25 17:00 | 17.38 Days
Continuous |
730s 701T (730s Rycroft) | install new relays, new 2z panel, end to end testing. | |
ENMAX | 24-Feb-25 08:00 | 02-Mar-25 16:00 | 6.33 Days
Continuous |
162.1TR (SS-162), 240kV North Bus (SS-162), 138kV North Bus (SS-162) | HV SW Maint. 162SW110, 162SW96, 162SW81, 162SW131, 162SW141, MD13-162.1TR, MD240-162.1TR. Oil Sampling Bushing, MT, TC. Check reversing switch. | |
ENMAX, ALTALINK | 24-Feb-25 08:00 | 14-Mar-25 16:00 | 18.29 Days
Continuous |
21.80L (42s Sarcee - SS-21) | HV SW Replacement 21SW81, 21SW82, 21SW83, 21MD138-21.1TR, 21.4TR (SS-21) | |
BCH | 24-Feb-25 09:00 | 28-Feb-25 17:00 | 4.33 Days
Continuous |
5L51 (BPA Custer - BCH Ingledow) | ING 5CB3 Insp and doble | AB-BC |
ATCO | 25-Feb-25 09:30 | 25-Feb-25 17:30 | 8 Hours
Continuous |
946s 901 (946s Oakland) | Trip coil testing. | |
ATCO, SUNCOR | 25-Feb-25 10:00 | 27-Feb-25 17:00 | 2.29 Days
Continuous |
9L162 (29EDD-94 Voyageur - 951s Thickwood Hills) | Weld new guy wire vangs and re-anchor structure 9L162/44. | |
ALTALINK | 25-Feb-25 12:30 | 25-Feb-25 18:00 | 5.5 Hours
Daily |
245s 777X (245s Seebe), 777L (48s Pocaterra - 245s Seebe) | Protection upgrade project on 81/138B protection at 245s Seebe. | |
ATCO | 26-Feb-25 09:30 | 26-Feb-25 17:30 | 8 Hours
Continuous |
946s 904 (946s Oakland) | Trip coil testing. | |
ATCO | 27-Feb-25 09:30 | 27-Feb-25 17:30 | 8 Hours
Continuous |
946s 908 (946s Oakland) | Trip coil testing. | |
ATCO | 27-Feb-25 12:00 | 27-Feb-25 16:00 | 4 Hours
Continuous |
7L146 (700s Bonnyville - 970s Bourque), 700s 704 (700s Bonnyville) | PRC-005 TRIP COIL TESTING | |
ATCO, SUNCOR | 28-Feb-25 10:00 | 02-Mar-25 17:00 | 2.29 Days
Continuous |
9L193 (29EDD-94 Voyageur - 951s Thickwood Hills) | Weld new guy wire vangs and re-anchor structure 9L193/44. | |
EPCOR | 03-Mar-25 07:00 | 07-Mar-25 17:00 | 4.42 Days
Continuous |
816s P2401 (816s Petrolia) | Petrolia: P2401 Gauge/Valve Repair | |
EPCOR | 03-Mar-25 07:00 | 07-Mar-25 17:00 | 4.42 Days
Continuous |
1098L (EP 805s Jasper - Poundmaker), EP 805s J2401 (EP 805s Jasper), EP 805s J2407 (EP 805s Jasper), PMDS1 (Poundmaker), PMDS4 (Poundmaker) | 1098L Zone: Relay Maintenance | |
ENMAX | 03-Mar-25 08:00 | 09-Mar-25 16:00 | 6.29 Days
Continuous |
162.2TR (SS-162), 138kV South Bus (SS-162), 240kV South Bus (SS-162) | HV SW Maint. 162SW88, 162SW89, 162SW105, 162SW136, 162SW146, MD138-162.2TR, MD240-162.2TR. Oil Sampling MT, TC. Check reversing switch. 162.2TR H1 GE tap sensor replacement MS 3000 | |
ATCO | 03-Mar-25 09:30 | 03-Mar-25 17:30 | 8 Hours
Continuous |
946s 902 (946s Oakland) | Trip coil testing | |
ATCO, ALTALINK | 03-Mar-25 10:00 | 07-Mar-25 16:30 | 4.27 Days
Continuous |
7L129 (526s Buffalo Creek - 7LA129 tap) | Replace structures, cross arms and insulators on 7L129 | |
ATCO, ALTALINK | 03-Mar-25 10:00 | 07-Mar-25 16:30 | 4.27 Days
Continuous |
7L129 (526s Buffalo Creek - 7LA129 tap) | Replace structures, cross arms and insulators on 7L129 | |
EPCOR | 04-Mar-25 07:00 | 04-Mar-25 12:00 | 5 Hours
Continuous |
657s T1 (657s Summerside) | Summerside: TX1 Bushing Name Plate Pictures (morning) | |
ALTALINK | 04-Mar-25 07:00 | 05-Mar-25 18:00 | 1.46 Days
Continuous |
892L (244s Bowmanton - 895s Suffield) | Cutover, test LTO, CT circuits at 244s and 895s to new RAS209 relays. Trip test 895s892 from new ‘B’ Bus protection and Breaker Fail relay. New maintenance switch being installed for breaker 244s2952 and 244s3052. | |
ALTALINK | 04-Mar-25 07:30 | 04-Mar-25 18:30 | 11 Hours
Daily |
283s C1 (283s Violet Grove), 283s T1 (283s Violet Grove), 283s 138kV Bus (283s Violet Grove), 836L (61s Lodgepole - 283s Violet Grove), 673L (131s Moon Lake - 283s Violet Grove) | Replace one leaking capacitor on C1. Maintenance on 283s30. Energize cap bank for 30 min. to take load readings at the end of the outage. | |
ENMAX, ALTALINK | 04-Mar-25 08:00 | 14-Mar-25 16:00 | 10.29 Days
Continuous |
20.82L (SS-20 - SS-21), 21.80L (42s Sarcee - SS-21), 21.1TR (SS-21) | HV SW Replacement 21SW81, 21SW82, 21SW83, 21MD138-21.1TR, 21.4TR (SS-21) | |
BCH, ALTALINK | 04-Mar-25 09:00 | 04-Mar-25 17:00 | 8 Hours
Continuous |
1L275 (799s Coleman - BCH Natal), 1CB2 (BCH Natal) | NTL 1CB2 Ras testing | AB-BC |
ATCO | 04-Mar-25 09:30 | 04-Mar-25 17:30 | 8 Hours
Continuous |
946s 903 (946s Oakland) | Trip coil testing | |
EPCOR | 04-Mar-25 12:00 | 04-Mar-25 17:00 | 5 Hours
Continuous |
657s T2 (657s Summerside) | Summerside: TX2 Bushing Name Plate Pictures (afternoon) | |
ALTALINK, BCH | 05-Mar-25 09:00 | 05-Mar-25 17:00 | 8 Hours
Continuous |
1L274 (BCH Natal - BCH Line Creek tap), 1CB1 (BCH Natal) | NTL 1CB1 Ras testing | AB-BC |
ATCO | 05-Mar-25 09:30 | 05-Mar-25 17:30 | 8 Hours
Continuous |
946s 905 (946s Oakland) | Trip coil testing | |
ALTALINK | 06-Mar-25 07:00 | 06-Mar-25 18:00 | 11 Hours
Daily |
100L (498s Tilley - 895s Suffield) | Remove old 96 CT circuits. Add 138kV Bus protection CT circuit. | |
ALTALINK | 06-Mar-25 07:00 | 15-Mar-25 18:00 | 9.42 Days
Continuous |
199L (347s AML Fox Creek - 199AL tap) | Fortis under build salvage and spar arm offset brace installation for their customer. P&C to disable trips to keep IPP @ 259s online. | |
ATCO | 06-Mar-25 09:30 | 06-Mar-25 17:30 | 8 Hours
Continuous |
946s 909 (946s Oakland) | Trip coil testing | |
ENMAX, ALTALINK | 09-Mar-25 08:00 | 12-Mar-25 14:00 | 3.25 Days
Continuous |
7.82L (42s Sarcee - SS-7) | Replace connection point on shield wire weld tabs on structure | |
ENMAX, ALTALINK | 10-Mar-25 08:00 | 11-Mar-25 16:00 | 1.33 Days
Continuous |
932L (74s Janet - SS-162) | HV SW Maint. 162SW145, 162SW144, MD-932L | |
ENMAX, ALTALINK | 10-Mar-25 08:00 | 11-Mar-25 16:00 | 1.33 Days
Continuous |
932L (74s Janet - SS-162) | HV SW Maint. 162SW145, 162SW144, MD-932L | |
ATCO | 10-Mar-25 08:00 | 13-Mar-25 17:00 | 3.38 Days
Continuous |
7L28 (717s Ethel Lake - 846s Grand Centre) | 7L28 Line to ground clearance mitigation | |
SUNCOR | 10-Mar-25 08:00 | 16-Mar-25 20:00 | 6.5 Days
Continuous |
29EDD-1 Millennium 260kV West Bus 1, 29EDD-1 29EDD1s1052 (29EDD-1 Millennium) | (BP) Corey - 300347749 29EDD1S1052 Densimeter Replacement; 450501635 - 29EDD1;W260B1 WEST BUS SYSTEM; 5Y/10Y (PRC5) | |
BCH | 10-Mar-25 09:00 | 11-Mar-25 17:00 | 1.33 Days
Continuous |
5L52 (BPA Custer - BCH Ingledow) | replace end-of-life insulators | AB-BC |
ALTALINK, EPCOR | 10-Mar-25 09:00 | 14-Mar-25 17:30 | 4.35 Days
Continuous |
930L (37s North Calder - Poundmaker) | Epcor performing relay maintenance requiring line to be OOS. | |
ATCO | 10-Mar-25 10:00 | 17-Mar-25 16:00 | 7.25 Days
Continuous |
7L32 (811s Clairmont Lake - 862s South Bezanson) | Changing rotten X Arms and rotten poles from Test and Treat | |
ALTALINK | 11-Mar-25 08:00 | 11-Mar-25 16:00 | 8 Hours
Daily |
336s 612 (336s Fincastle), 612L (336s Fincastle - 368s Burdett) | Breaker outage to add CT circuit to new PMU | |
ATCO | 11-Mar-25 08:30 | 12-Mar-25 16:00 | 31.5 Hours
Continuous |
786s SVC (786s High Level) | SVC Spring Maintenance | |
ALTALINK, EPCOR | 11-Mar-25 09:00 | 12-Mar-25 17:00 | 1.33 Days
Continuous |
510s 2952 (510s Sunnybrook), 510s 3052 (510s Sunnybrook), 1238L (330p Genesee - 510s Sunnybrook) | Replace damaged corona ring on bus expansion joint. | |
ATCO | 11-Mar-25 10:00 | 17-Mar-25 17:00 | 6.29 Days
Continuous |
9L40 (732s Mitsue - 809s Louise Creek) | change out several Orange tagged/ damaged poles. | |
ALTALINK | 12-Mar-25 07:00 | 12-Mar-25 17:00 | 10 Hours
Daily |
83s 138kV East Bus (83s Taber), 83s T3 (83s Taber), 83s 64 (83s Taber), 83s C1 (83s Taber), 83s 507 (83s Taber), 507L (83s Taber - 257s Hull), 83s 61 (83s Taber) | Bus outage to trip test 83s507 (852), 83s61 (1152) and 83s64 (395) from new 83s610 (152) breaker fail protection. | |
EPCOR | 12-Mar-25 07:00 | 12-Mar-25 17:00 | 10 Hours
Continuous |
987s T4 (987s Clover Bar), 987s C2408 (987s Clover Bar) | Cloverbar: TX4 Tap Changer Maintenance | |
EPCOR | 13-Mar-25 07:00 | 14-Mar-25 17:00 | 1.42 Days
Continuous |
987s T3 (987s Clover Bar), 987s C2407 (987s Clover Bar) | Cloverbar: TX3 Tap Changer Maintenance and C2407 Counter Repair | |
ALTALINK | 13-Mar-25 07:00 | 18-Mar-25 14:00 | 5.29 Days
Continuous |
944L (132s Ware Junction - 275s Jenner) | Replace VT5 and CT (275s5)Like for like, install new JBs and cabling | |
ENMAX, ALTALINK | 15-Mar-25 08:00 | 24-Mar-25 16:00 | 9.33 Days
Continuous |
50L (44s Bearspaw Plant - SS-21), 21.1C (SS-21), 21.2TR (SS-21) | HV SW Replacement 21SW87, 21SW88, 21SW89, 21MD138-21.2TR | |
ENMAX, ALTALINK | 15-Mar-25 08:00 | 28-Mar-25 16:00 | 13.33 Days
Continuous |
37.2TR (SS-37), 37.82L (74s Janet - SS-37) | 37sub Capacity Upgrade. 138kv bus tie breaker placement and PT relocation. Temporary bus will be installed above the new bus tie breaker until completion of commissioning | |
EPCOR | 17-Mar-25 07:00 | 21-Mar-25 17:00 | 4.42 Days
Continuous |
987s T2 (987s Clover Bar), 987s C2410 (987s Clover Bar), 987s C2406 (987s Clover Bar), 987s CC721 (987s Clover Bar) | Cloverbar: TX2 VRR Cut Overs | |
ALTALINK | 17-Mar-25 07:00 | 28-Mar-25 18:00 | 11.46 Days
Continuous |
610L (83s Taber - 336s Fincastle) | VATD - Rebuild 610L. Cut over from Old 610L to New 610L. Replace 610L protections and add breaker fail protection. | |
ENMAX, ALTALINK | 17-Mar-25 08:00 | 27-Mar-25 16:00 | 10.33 Days
Continuous |
50L (44s Bearspaw Plant - SS-21) | HV SW Replacement 21SW87, 21SW88, 21SW89, 21MD138-21.2TR | |
BCH | 17-Mar-25 09:00 | 21-Mar-25 17:00 | 4.33 Days
Continuous |
5L51 (BPA Custer - BCH Ingledow) | ING 5CB3 Insp and doble | AB-BC |
ENMAX, ALTALINK | 17-Mar-25 09:30 | 20-Mar-25 18:00 | 3.35 Days
Continuous |
37.82L (74s Janet - SS-37) | Replace 74s37.82 (1252) Breaker CT | |
ALTALINK | 18-Mar-25 08:00 | 19-Mar-25 17:00 | 1.38 Days
Continuous |
913L (69s North Barrhead - 338s Cherhill), 913L (69s North Barrhead - 732s Mitsue), 69s T4 (69s North Barrhead) | Replace failed relay at 69s A21/59/L2 and replace relay at 338s 913L A21/L1 | |
ATCO | 18-Mar-25 08:00 | 19-Mar-25 17:00 | 1.38 Days
Continuous |
9L913 (69s North Barrhead - 732s Mitsue) | AltaLink Scope: Replace failed relay at 69s A21/59/L2 and replace relay at 338s 913L A21/L1 |
|
ALTALINK | 19-Mar-25 07:00 | 20-Mar-25 18:00 | 1.46 Days
Continuous |
83s T1 (83s Taber), 83s 65 (83s Taber), 83s 610 (83s Taber), 610L (83s Taber - 336s Fincastle), 83s 172W (83s Taber), 172L (83s Taber - 172EL tap), 83s 67 (83s Taber), 83s C2 (83s Taber) | Bus outage to trip test 83s172w, 83s67, 83s65, 83s610 | |
EPCOR, ALTALINK | 24-Mar-25 07:00 | 27-Mar-25 17:00 | 3.42 Days
Continuous |
EP 803s T3 (EP 803s Lambton), EP 803s L2403 (EP 803s Lambton), EP 803s L2405 (EP 803s Lambton), EP 803s L721 (EP 803s Lambton) | Lambton: TX3 Zone Relay Maintenance and Rad Leak Repair | |
EPCOR | 24-Mar-25 07:00 | 07-Aug-25 17:00 | 136.42 Days
Continuous |
987s T1 (987s Clover Bar), 987s CCP7213 (987s Clover Bar), 987s CCP7214 (987s Clover Bar) | Cloverbar: TX1 LCR | |
ATCO | 24-Mar-25 09:00 | 24-Mar-25 16:00 | 7 Hours
Continuous |
715s 703 (715s Leming Lake), 7L66 (715s Leming Lake - 717s Ethel Lake) | wire and test new breaker status to 21B/ 7L66 and new mirror bit signal to 717S RAS Hub | |
ATCO | 24-Mar-25 10:00 | 27-Mar-25 16:00 | 3.25 Days
Continuous |
7L89 (700s Bonnyville - 721s La Corey), 700s 703 (700s Bonnyville) | PRC-005 RELAY TESTING, RTXP TEST SWITCH REPLACEMENTS, PRC-005 TRIP COIL TESTING | |
ATCO | 24-Mar-25 10:00 | 31-Mar-25 16:00 | 7.25 Days
Continuous |
7L32 (811s Clairmont Lake - 862s South Bezanson) | Changing rotten X Arms and rotten poles from Test and Treat | |
ENMAX, ALTALINK | 24-Mar-25 11:30 | 25-Mar-25 17:00 | 29.5 Hours
Continuous |
693L (42s Sarcee - SS-10) | 693L U/G cables seal flooded vaults from water ingress. | |
ENMAX, ALTALINK | 24-Mar-25 11:30 | 25-Mar-25 17:00 | 29.5 Hours
Continuous |
693L (42s Sarcee - SS-10) | Altalink outage. 693L U/G cables seal flooded vaults from water ingress | |
ALTALINK | 24-Mar-25 12:30 | 27-Mar-25 17:30 | 3.21 Days
Continuous |
310p 1552 (310p Sundance) | First trip & 240kV breaker maintenance. Add oil to breaker. | |
ALTALINK | 25-Mar-25 07:30 | 25-Mar-25 17:30 | 10 Hours
Daily |
74s 2452 (74s Janet) | 74s2452 Install Double Washers on breaker mech. Punch Item. | |
ENMAX, ALTALINK | 25-Mar-25 08:00 | 25-Mar-25 16:00 | 8 Hours
Continuous |
20.82L (SS-20 - SS-21), 21.80L (42s Sarcee - SS-21), 21.1TR (SS-21), 50L (44s Bearspaw Plant - SS-21), 21.1C (SS-21), 21.2TR (SS-21) | HV SW Replacement 21SW86. Full substation outage | |
ATCO | 26-Mar-25 09:00 | 26-Mar-25 17:30 | 8.5 Hours
Continuous |
2075s 905 (2075s Newell) | - PRC-005 relay testing - PRC-005 trip coil testing Breaker 905 at 2075S |
|
ALTALINK | 26-Mar-25 11:00 | 27-Mar-25 17:30 | 30.5 Hours
Continuous |
916L (5s East Calgary - 42s Sarcee) | 916L U/G cables seal flooded vaults from water ingress. | |
ALTALINK | 26-Mar-25 23:00 | 27-Mar-25 03:00 | 4 Hours
Continuous |
62s T1 (62s Brazeau Plant) | maintenance | |
ALTALINK | 27-Mar-25 03:00 | 27-Mar-25 07:00 | 4 Hours
Daily |
62s T2 (62s Brazeau Plant) | maintenance | |
ATCO | 27-Mar-25 09:00 | 27-Mar-25 14:00 | 5 Hours
Continuous |
846s 701 (846s Grand Centre), 7L28 (717s Ethel Lake - 846s Grand Centre) | test new breaker 701 status to new SEL 2440 RAS relay and MB signal to 717 RAS hub | |
ATCO | 27-Mar-25 09:00 | 27-Mar-25 17:30 | 8.5 Hours
Continuous |
2075s 911 (2075s Newell) | PRC-005 relay testing PRC-005 trip coil testing On Breaker 911 |
|
ATCO | 27-Mar-25 14:01 | 28-Mar-25 14:00 | 23.98 Hours
Continuous |
846s 702 (846s Grand Centre), 7L24 (846s Grand Centre - 7LA24 tap) | test new breaker 702 status to new SEL 2440 RAS relay and MB signal to 717S RAS hub | |
ATCO | 28-Mar-25 09:00 | 28-Mar-25 17:30 | 8.5 Hours
Continuous |
2075s 920 (2075s Newell) | PRC-005 relay testing PRC-005 trip coil testing On Breaker 920 |
|
ENMAX | 29-Mar-25 09:00 | 06-May-25 14:00 | 38.21 Days
Continuous |
240kV West Bus (SS-25) | Altalink outage. Scaffold and Begin to Terminate new Cables at C25s. AltaLink to work under Enmax permit – Grounding required. Submit SRF. | |
ATCO, SUNCOR | 30-Mar-25 08:00 | 05-Apr-26 20:00 | 371.5 Days
Continuous |
6L32 (29EDD-1 Millennium - 737s ATC Horseshoe) | 29EDD1;29CVT-6 SYSTEM;5y,10y |
|
ENMAX, ALTALINK | 31-Mar-25 08:00 | 31-Mar-25 12:00 | 4 Hours
Continuous |
28.80L (42s Sarcee - SS-28), 28.2TR (SS-28) | Spring Substation Washing | |
ATCO | 31-Mar-25 09:00 | 09-Apr-25 17:00 | 9.33 Days
Continuous |
7L701 (757s Battle River - 7LA701 tap), 757s 707 (757s Battle River) | replace overhead shield wire with OPGW cable on 7L701 from structure 1 to 11 | |
ATCO | 31-Mar-25 11:00 | 31-Mar-25 16:00 | 5 Hours
Continuous |
977s 910R (977s Salt Creek), 977s 910 (977s Salt Creek) | TRIP COIL TESTING | |
ENMAX | 01-Apr-25 08:00 | 01-Apr-25 12:00 | 4 Hours
Continuous |
23.80L (74s Janet - SS-23), 23.4TR (SS-23) | Spring Substation Washing | |
SUNCOR | 01-Apr-25 08:00 | 08-Apr-25 20:00 | 7.5 Days
Continuous |
29EDD-34 29PT-341 (29EDD-34) | BP (Corey) - 29EDD34;29PT-341 SYSTEM;PM 10y; 29EDD34;29PP-103 SYSTEM;PM 5y,10y |
|
ATCO | 01-Apr-25 09:00 | 01-Apr-25 12:00 | 3 Hours
Continuous |
977s 901 (977s Salt Creek) | TRIP COIL TESTING | |
ATCO | 01-Apr-25 11:00 | 04-Apr-25 16:00 | 3.21 Days
Continuous |
930s SVC (930s Arcenciel) | Spring Maintenance SVC | |
ATCO | 01-Apr-25 12:30 | 01-Apr-25 16:00 | 3.5 Hours
Continuous |
977s 902 (977s Salt Creek) | TRIP COIL TESTING | |
ALTALINK | 02-Apr-25 08:00 | 02-Apr-25 13:00 | 5 Hours
Daily |
786L (799s Coleman - BCH Natal) | Cut in breakers for future Open Point 'B' at Str122. | |
ATCO | 02-Apr-25 09:00 | 02-Apr-25 12:00 | 3 Hours
Continuous |
977s 904 (977s Salt Creek) | TRIP COIL TESTING | |
ATCO | 02-Apr-25 12:00 | 02-Apr-25 16:00 | 4 Hours
Continuous |
7L24 (700s Bonnyville - 7LA24 tap), 700s 708 (700s Bonnyville) | PRC-005 TRIP COIL TESTING | |
ATCO | 02-Apr-25 12:30 | 02-Apr-25 16:00 | 3.5 Hours
Continuous |
977s 905 (977s Salt Creek) | TRIP COIL TESTING | |
ALTALINK | 02-Apr-25 13:00 | 02-Apr-25 15:00 | 2 Hours
Continuous |
786L (799s Coleman - BCH Natal) | Close Open Point 'A' 170L to 786L creating bypass around 799s. | |
ATCO | 03-Apr-25 09:00 | 03-Apr-25 16:00 | 7 Hours
Continuous |
977s 901T (977s Salt Creek) | PRC-005 - SPR TESTING - TRANSFORMER 901T @ 977S PRC-005 - TRIP COIL TESTING - BREAKER 701 @ 977S |
|
ALTALINK | 04-Apr-25 10:00 | 04-Apr-25 13:00 | 3 Hours
Daily |
879L (244s Bowmanton - 879AL tap), 879L (368s Burdett - 879L tap) | Open west jumper at Str 457A. | |
ALTALINK | 04-Apr-25 13:00 | 09-Apr-25 14:00 | 5.04 Days
Continuous |
879L (368s Burdett - 879L tap) | Replace structures 719-723. | |
ENMAX, ALTALINK | 05-Apr-25 08:00 | 06-Apr-25 16:00 | 1.33 Days
Continuous |
771L (SS-47 - SS-162), 162B138-RB82 (SS-162), 47.1TR (SS-47), 47.2TR (SS-47), 162B138-RB81 (SS-162) | HV SW Maint. 162SW85, 162SW84, MD-771L. SW85 at 162 center phase does not open past 90 deg-adjust. Summer washing 47sub SW81, SW86. | |
EPCOR | 07-Apr-25 07:00 | 08-Apr-25 17:00 | 1.42 Days
Continuous |
665s T2 (665s Dome) | Dome: TX2 Tap Changer Maintenance | |
ENMAX | 07-Apr-25 08:00 | 08-Apr-25 16:00 | 1.33 Days
Continuous |
162B138-RB80 (SS-162), 162B138-RB81 (SS-162), 162.81L (391s Balzac - SS-162) | HV SW Maint. 162SW82, 162SW83, MD-162.81L | |
ALTALINK | 07-Apr-25 08:00 | 08-Apr-25 16:30 | 1.35 Days
Continuous |
391s 162.81 (391s Balzac) | HV SW Maint. 162SW82, 162SW83, MD-162.81L. | |
SUNCOR | 07-Apr-25 08:00 | 13-Apr-25 20:00 | 6.5 Days
Continuous |
29EDD-56 29PT-190 (29EDD-56) | BP (Corey) - 29EDD-56;29PT-190 SYSTEM;PM 5y; 29EDD56;29PP-41H SYSTEM;PM 5Y/10Y | |
ATCO | 07-Apr-25 10:00 | 14-Apr-25 16:00 | 7.25 Days
Continuous |
7L32 (811s Clairmont Lake - 862s South Bezanson) | Changing rotten X Arms and rotten poles from Test and Treat | |
ALTALINK | 08-Apr-25 07:30 | 16-Apr-25 10:30 | 8.13 Days
Continuous |
72s T1 (72s Leismer), 72s 2 (72s Leismer) | oil reclaim and leak repairs | |
BCH | 08-Apr-25 09:00 | 11-Apr-25 17:00 | 3.33 Days
Continuous |
5L76 (BCH Ashton Creek - BCH Nicola) | Clearance required for heli and safety training purposes. | AB-BC |
ATCO | 08-Apr-25 09:30 | 08-Apr-25 17:00 | 7.5 Hours
Continuous |
934s 240kV Bus 900BS1 (934s Blackfly) | REPAIR - 934S 900SST1 C Phase Gas Pressure near low Top up Power PT gas levels |
|
EPCOR | 09-Apr-25 07:00 | 10-Apr-25 17:00 | 1.42 Days
Continuous |
665s T1 (665s Dome) | Dome: TX1 Tap Changer Maintenance | |
SUNCOR | 09-Apr-25 08:00 | 16-Apr-25 20:00 | 7.5 Days
Continuous |
29EDD-34 29PT-340 (29EDD-34) | BP (Corey) - 29EDD34;29PT-340 SYSTEM;PM 5y,10y; 29EDD34;29PP-102 SYSTEM;PM 5y,10y |
|
ATCO | 09-Apr-25 10:00 | 09-Apr-25 13:00 | 3 Hours
Continuous |
934s 901 (934s Blackfly) | 901 TRIP COIL TESTING | |
ATCO | 09-Apr-25 13:01 | 09-Apr-25 17:00 | 3.98 Hours
Continuous |
934s 902 (934s Blackfly) | 902 TRIP COIL TESTING | |
ALTALINK | 09-Apr-25 14:00 | 09-Apr-25 17:00 | 3 Hours
Daily |
879L (244s Bowmanton - 879AL tap), 879L (368s Burdett - 879L tap) | Close west jumper at Str 457A. | |
ATCO | 10-Apr-25 10:00 | 10-Apr-25 13:00 | 3 Hours
Continuous |
934s 905 (934s Blackfly) | TRIP COIL TESTING | |
ATCO | 10-Apr-25 13:01 | 10-Apr-25 17:00 | 3.98 Hours
Continuous |
934s 906 (934s Blackfly) | TRIP COIL TESTING | |
ALTALINK | 11-Apr-25 07:00 | 14-Apr-25 18:00 | 3.46 Days
Continuous |
607L (135s Conrad - 607AL tap), 607L (336s Fincastle - 607AL tap), 135s T1 (135s Conrad), 135s T2 (135s Conrad) | Reconductoring from Structures 2 -7 and replacing structures 5 & 6, for Hwy 3 widening. | |
ALTALINK | 11-Apr-25 08:00 | 11-Apr-25 16:00 | 8 Hours
Daily |
336s 607 (336s Fincastle), 607L (336s Fincastle - 607AL tap), 607L (135s Conrad - 607AL tap), 135s T1 (135s Conrad), 135s T2 (135s Conrad) | Breaker outage to add CT circuit to new PMU | |
ATCO, ALBIAN | 13-Apr-25 08:00 | 23-Apr-25 16:00 | 10.33 Days
Continuous |
920s 901T (920s Jackpine) | CNRL to repair 72kV Cables | |
ATCO, ALBIAN | 13-Apr-25 08:00 | 23-Apr-25 16:00 | 10.33 Days
Continuous |
920s 901T (920s Jackpine), 919s 905 (919s Hartley), 920s 901 (920s Jackpine) | Work to be done in coordination with CNRL outage. 919s - 905 Breaker Complete 920s - 901 Breaker Complete 920s - 901T Major Testing |
|
SUNCOR | 14-Apr-25 08:00 | 20-Apr-25 20:00 | 6.5 Days
Continuous |
29EDD-56 29PT-191 (29EDD-56) | BP (Corey) - 29EDD56;29PT-191 SYSTEM;PM 5Y/10Y;29EDD56;29PP-41C SYSTEM;PM 5y | |
ALTALINK, EPCOR | 14-Apr-25 09:30 | 17-Apr-25 17:00 | 3.31 Days
Continuous |
930L (37s North Calder - Poundmaker), PM2403 (Poundmaker), PM2404 (Poundmaker) | 930L Zone: Relay Maintenance | |
ATCO | 14-Apr-25 09:30 | 18-Apr-25 17:30 | 4.33 Days
Continuous |
730s STATCOM (730s Rycroft), 730s 705 (730s Rycroft) | SVC ANNUAL INSPECTION . | |
ATCO | 14-Apr-25 11:00 | 16-Apr-25 16:00 | 2.21 Days
Continuous |
827s SVC (827s Cranberry Lake) | 827s Spring SVC Maintenance | |
ATCO | 15-Apr-25 07:00 | 18-Apr-25 15:00 | 3.33 Days
Continuous |
7L101 (790s Poplar Hill - 944s Lowe Lake) | customer request | |
ATCO | 15-Apr-25 07:00 | 18-Apr-25 15:00 | 3.33 Days
Continuous |
7L101 (790s Poplar Hill - 944s Lowe Lake), 790s 705 (790s Poplar Hill) | PRC-005 - TRIP COIL TESTING | |
ENMAX | 17-Apr-25 08:00 | 25-Apr-25 16:00 | 8.33 Days
Continuous |
65.1TR (SS-65) | Tap Changer Inspection | |
ENMAX | 17-Apr-25 13:00 | 20-Apr-25 18:00 | 3.21 Days
Continuous |
2GSU-XF-001 (SS-25) | Power Factor Test - 25PT240-Z44, 25BUS240-25MCT2, 25 Sub Zone 44 PT Oil Leaks (North and South PT) | |
ENMAX, ALTALINK | 17-Apr-25 13:00 | 20-Apr-25 18:00 | 3.21 Days
Continuous |
1003L (74s Janet - SS-25) | Outage required to allow 2GSU 240kV bus isolation | |
ATCO | 21-Apr-25 08:00 | 24-Apr-25 17:00 | 3.38 Days
Continuous |
7L86 (822s Wolf Lake - 1200s Foster Creek) | Cenovus is expanding their 1200S substation 26m to the south, toward structure 449. We will be relocating the conductor north of structure 449 to the new A-Frame structure that Cenovus is installing inside their substation. |
|
EPCOR | 22-Apr-25 07:00 | 27-Apr-25 17:00 | 5.42 Days
Continuous |
805s T3 (805s Jasper), EP 805s J2404 (EP 805s Jasper), EP 805s J2405 (EP 805s Jasper) | Jasper: TX3 Zone Relay Maintenance and J2404 Bay Doble and Tap Changer Maintenance and TX3 PRD Repair | |
ATCO | 22-Apr-25 09:00 | 23-Apr-25 17:30 | 1.35 Days
Continuous |
2075s ACF22 (2075s Newell) | FILTER BANK AC MAINTENANCE | |
ATCO | 22-Apr-25 09:30 | 22-Apr-25 12:00 | 2.5 Hours
Continuous |
790s 702 (790s Poplar Hill), 7L22 (790s Poplar Hill - 7L88 tap) | PRC-005 - TRIP COIL TESTING - BREAKER 702 @ 790S | |
ATCO | 22-Apr-25 10:00 | 28-Apr-25 16:00 | 6.25 Days
Continuous |
7L32 (811s Clairmont Lake - 862s South Bezanson) | Changing rotten X Arms and rotten poles from Test and Treat | |
ATCO | 22-Apr-25 13:30 | 22-Apr-25 16:00 | 2.5 Hours
Continuous |
939s 912 (939s Livock) | PRC-005 - TRIP COIL TESTING - BREAKER 912-NORTH @ 939S PRC-005 - TRIP COIL TESTING - BREAKER 912-SOUTH @ 939S PRC-005 - TRIP COIL TESTING - BREAKER 912-CENTER @ 939S |
|
ATCO | 23-Apr-25 09:30 | 23-Apr-25 11:30 | 2 Hours
Continuous |
939s 901 (939s Livock) | PRC-005 - TRIP COIL TESTING - BREAKER 901-NORTH @ 939S PRC-005 - TRIP COIL TESTING - BREAKER 901-SOUTH @ 939S PRC-005 - TRIP COIL TESTING - BREAKER 901-CENTER @ 939S |
|
ATCO | 23-Apr-25 11:31 | 23-Apr-25 14:00 | 2.48 Hours
Continuous |
939s 903 (939s Livock) | PRC-005 - TRIP COIL TESTING - BREAKER 903-NORTH @ 939S PRC-005 - TRIP COIL TESTING - BREAKER 903-SOUTH @ 939S PRC-005 - TRIP COIL TESTING - BREAKER 903-CENTER @ 939S |
|
ATCO | 23-Apr-25 14:01 | 23-Apr-25 16:30 | 2.48 Hours
Continuous |
939s 904 (939s Livock) | PRC-005 - TRIP COIL TESTING - BREAKER 904-NORTH @ 939S PRC-005 - TRIP COIL TESTING - BREAKER 904-SOUTH @ 939S PRC-005 - TRIP COIL TESTING - BREAKER 904-CENTER @ 939S |
|
ATCO | 24-Apr-25 09:00 | 24-Apr-25 17:30 | 8.5 Hours
Continuous |
2075s ACF23 (2075s Newell) | FILTER BANK AC MAINTENANCE | |
ATCO | 24-Apr-25 09:00 | 12-May-25 12:00 | 18.13 Days
Continuous |
7L95 (715s Leming Lake - 889s Mahkeses), 7L66 (715s Leming Lake - 717s Ethel Lake), 715s 703 (715s Leming Lake), 715s 704 (715s Leming Lake) | Replacing 700PT1 wood structure with new steel structure and 7L95 protection upgrade. | |
ATCO | 24-Apr-25 09:30 | 24-Apr-25 15:30 | 6 Hours
Continuous |
939s 910 (939s Livock), 939s 911 (939s Livock), 939s 903T (939s Livock) | PRC-005 - TRIP COIL TESTING - BREAKER 910 @ 939S PRC-005 - TRIP COIL TESTING - BREAKER 911 @ 939S Study Will indicate if we close 912 when available |
|
ATCO, ALBIAN | 24-Apr-25 10:00 | 02-May-25 12:00 | 8.08 Days
Continuous |
920s 902T (920s Jackpine), 919s 907 (919s Hartley), 920s 902 (920s Jackpine) | Work to be done in coordination with CNRL upon completion of their 920s outage on 901T 919s - 907 Breaker Complete 920s - 902 Breaker Complete 920s - 902T Major Testing |
|
ALTALINK, ENMAX | 25-Apr-25 08:00 | 28-Apr-25 16:00 | 3.33 Days
Continuous |
42s 22 (42s Sarcee), 21.80L (42s Sarcee - SS-21) | HV SW Replacement 21SW86. Full substation outage | |
ENMAX, ALTALINK | 25-Apr-25 08:00 | 28-Apr-25 16:00 | 3.33 Days
Continuous |
50L (44s Bearspaw Plant - SS-21) | HV SW Replacement 21SW86. Full substation outage | |
ATCO | 25-Apr-25 09:00 | 25-Apr-25 17:30 | 8.5 Hours
Continuous |
2075s ACF24 (2075s Newell) | FILTER BANK AC MAINTENANCE | |
EPCOR | 28-Apr-25 07:00 | 02-May-25 17:00 | 4.42 Days
Continuous |
T4 (Poundmaker), PM2403 (Poundmaker), PM2402 (Poundmaker), PM721 (Poundmaker) | Poundmaker: TX4 Zone Relay Maintenance | |
BCH | 28-Apr-25 09:00 | 30-Apr-25 17:00 | 2.33 Days
Continuous |
5L52 (BPA Custer - BCH Ingledow), 5CB5 (BCH Ingledow), 5CB6 (BCH Ingledow) | ING 5GD25, 5D25, 5CT25 and 5CVT5 INSPs | AB-BC |
ALTALINK, EPCOR | 28-Apr-25 09:00 | 30-Apr-25 17:30 | 2.35 Days
Continuous |
1056L (89s Ellerslie - 629s Argyll Transfer Station) | 1056L Zone Doble and Bellamy BA2 Pothead Leak Repair. EPCOR work | |
ATCO | 28-Apr-25 09:00 | 02-May-25 17:30 | 4.35 Days
Continuous |
2075s ACF21 (2075s Newell), 2075s 902T (2075s Newell), 2075S 930 (2075s Newell) | SVC TRANSFORMER MAINTENANCE, ANNUAL SVC MAINTENANCE, FIRE SUPPRESSION INSPECTION AND RECERTIFICATION. | |
BCH | 28-Apr-25 09:00 | 09-May-25 17:00 | 11.33 Days
Continuous |
T4 (BCH Natal) | ING 5GD25, 5D25, 5CT25 and 5CVT5 INSPs | AB-BC |
ALTALINK, EPCOR | 28-Apr-25 09:30 | 30-Apr-25 17:00 | 2.31 Days
Continuous |
1056L (89s Ellerslie - 629s Argyll Transfer Station), 240BA2 (629s Argyll Transfer Station - 814s Bellamy), 814s B2401 (814s Bellamy), 814s B2402 (814s Bellamy) | Argyll: 1056L Zone Doble and Bellamy BA2 Pothead Leak Repair | |
ATCO | 28-Apr-25 10:00 | 01-May-25 14:00 | 3.17 Days
Continuous |
7L66 (715s Leming Lake - 717s Ethel Lake) | GOI needed for climbing inspection and deficiency repairs on 7L66 | |
ALTALINK, EPCOR | 30-Apr-25 07:00 | 02-May-25 17:00 | 2.42 Days
Continuous |
1045L (EP 805s Jasper - 1045AL tap), EP 805s J2407 (EP 805s Jasper), EP 805s J2406 (EP 805s Jasper) | 1045L: Insulator Repair | |
ALTALINK, EPCOR | 30-Apr-25 07:00 | 02-May-25 17:30 | 2.44 Days
Continuous |
1045AL (320p Keephills - 1045L tap), 1045L (310p Sundance - 1045AL tap), 1045L (EP 805s Jasper - 1045AL tap) | Epcor insulator repair | |
ATCO | 30-Apr-25 09:30 | 01-May-25 17:30 | 1.33 Days
Continuous |
790s 704 (790s Poplar Hill), 790s 703T (790s Poplar Hill) | PRC-005 - TRIP COIL TESTING - BREAKER 704 @ 790S BREAKER SF6 HPL COMPLETE TESTING - 704 @ 790S |
|
ATCO | 30-Apr-25 09:30 | 01-May-25 17:30 | 1.33 Days
Continuous |
892s 702 (892s Ribstone Creek), 7L696 (508s Lakesend - 892s Ribstone Creek) | BREAKER SF6 GL312 COMPLETE TESTING - BREAKER 702 @ 892S | |
ALTALINK, TRANSALTA | 30-Apr-25 10:00 | 30-Apr-25 14:00 | 4 Hours
Daily |
250p T1 (250p Bighorn Plant) | maintenance | |
BCH | 01-May-25 09:00 | 03-May-25 17:00 | 2.33 Days
Continuous |
5L51 (BPA Custer - BCH Ingledow) | ING 5GD23, 5D23, 5CT23 and 5CVT3 INSPs | AB-BC |
ALTALINK, TRANSALTA | 01-May-25 10:00 | 01-May-25 14:00 | 4 Hours
Daily |
250p T2 (250p Bighorn Plant) | maintenance | |
ATCO, ALBIAN | 02-May-25 08:00 | 13-May-25 08:00 | 11 Days
Continuous |
919s 906 (919s Hartley) | CNRL Request to isolate 906 | |
SUNCOR | 03-May-25 09:00 | 15-May-25 16:00 | 12.29 Days
Continuous |
29EDD-1 T2 (29EDD-1 Millennium) | BP-29EDD-1 - TA - T2 OLTC Maintenance and Testing; 29EDD-1 T2 72LV Arrester replacement (CG) 300199837, 300203566 |
|
EPCOR | 05-May-25 07:00 | 17-May-25 17:00 | 12.42 Days
Continuous |
CV5 (EP 511s Victoria - 557s Castle Downs), 557s CDDS9 (557s Castle Downs), 557s CDDS12 (557s Castle Downs), EP 511s V2401 (EP 511s Victoria), EP 511s Victoria T5 (EP 511s Victoria), RV728 (Rossdale), EP 511s V727 (EP 511s Victoria) | CV5: CV5 Zone Doble and Disconnect Maintenance and Victoria TX5 Doble and UGT Manhole Inspections | |
ATCO | 05-May-25 09:00 | 06-May-25 15:00 | 30 Hours
Continuous |
755s 901 (755s Cordel) | BREAKER 901 SF6 GL315 COMPLETE TESTING @ 755S Cordel | |
BCH | 05-May-25 09:00 | 20-May-25 17:00 | 15.33 Days
Continuous |
2L112 (BPA Boundary - BCH Nelway) | NLY 2SA2 2SA12 Replacement | AB-BC |
ATCO | 05-May-25 10:00 | 08-May-25 16:00 | 3.25 Days
Continuous |
7L89 (700s Bonnyville - 721s La Corey) | GOI required for climbing inspection on 7L89 and for deficiency repair. | |
ATCO, ALBIAN | 05-May-25 12:00 | 07-May-25 16:00 | 2.17 Days
Continuous |
919s 906 (919s Hartley) | 906 Breaker Complete testing. To be done in coordination with CNRL outage on 901T. | |
ALTALINK | 05-May-25 13:00 | 08-May-25 17:00 | 3.17 Days
Continuous |
320p T6 (320p Keephills) | T6 outage to install new Camlin Bushing Monitors | |
ATCO, FMGW | 06-May-25 08:30 | 08-May-25 18:00 | 2.4 Days
Continuous |
1024s PT-6001 (1024s Granlea), 1024s PT-6002 (1024s Granlea), 1024s 952-600001 (1024s Granlea), 1024s PS-6005 (1024s Granlea), 1024s PS-6006 (1024s Granlea), 1024s PS-6007 (1024s Granlea), 1024s PS-6008 (1024s Granlea) | preform transformer leak repairs and inspections. 34kv bus bird proofing install. | |
ENMAX, ALTALINK | 06-May-25 14:00 | 12-May-25 14:00 | 6 Days
Continuous |
1109L (SS-25 - SS-65) | Scaffold and begin to Terminate new Cables on 1109L str 1. | |
ENMAX, ALTALINK | 06-May-25 14:00 | 12-May-25 14:00 | 6 Days
Continuous |
240kV West Bus (SS-25), 1109L (SS-25 - SS-65) | Altalink outage. 25s Scaffold and begin to Terminate new Cables on 1109L. Expanding zone to include 1109L, Enmax grounds to stay on. | |
ATCO | 07-May-25 09:00 | 08-May-25 15:00 | 30 Hours
Continuous |
755s 902 (755s Cordel) | BREAKER 902 SF6 GL315 COMPLETE TESTING @ 755S Cordel | |
EPCOR | 12-May-25 07:00 | 17-May-25 17:00 | 5.42 Days
Continuous |
805s T4 (805s Jasper), EP 805s J2405 (EP 805s Jasper), EP 805s J2406 (EP 805s Jasper) | Jasper: TX4 Zone Relay Maintenance and JDS10 Repair (045351) and TX4 Tap Changer Maintenance | |
ATCO | 12-May-25 10:00 | 15-May-25 16:00 | 3.25 Days
Continuous |
7L89 (700s Bonnyville - 721s La Corey) | GOI required for climbing inspection on 7L89 and for deficiency repair. | |
ATCO | 12-May-25 12:01 | 27-May-25 17:00 | 15.21 Days
Continuous |
7L95 (715s Leming Lake - 889s Mahkeses), 715s 704 (715s Leming Lake) | 7L95 protection upgrade. | |
ENMAX, ALTALINK | 12-May-25 14:00 | 31-May-25 14:00 | 19 Days
Continuous |
1109L (SS-25 - SS-65) | Complete Termination of new Cables on 1109L str 1. | |
ENMAX, ALTALINK | 12-May-25 14:00 | 31-May-25 14:00 | 19 Days
Continuous |
1109L (SS-25 - SS-65) | Altalink outage. Complete Termination of new Cables on 1109L str 1. | |
ATCO, ALBIAN | 14-May-25 08:00 | 15-May-25 08:00 | 24 Hours
Continuous |
919s 908 (919s Hartley) | CNRL Request COG to open 908 breaker and 902TD in the Hartley 919S substation at CNRL Albian Sands. This will be an isolation point for our upcoming outage to permit work on supply side breakers/relays on our TP-2. |
|
BCH | 14-May-25 09:00 | 14-May-25 17:00 | 8 Hours
Continuous |
2L112 (BPA Boundary - BCH Nelway) | Maintenance on NLY T2 Non-electrical PM, 2CB7 and 2CB8 BFPN | AB-BC |
ALTALINK | 14-May-25 23:00 | 15-May-25 03:00 | 4 Hours
Continuous |
62s T1 (62s Brazeau Plant) | maintenance | |
ALTALINK | 15-May-25 03:00 | 15-May-25 07:00 | 4 Hours
Daily |
62s T2 (62s Brazeau Plant) | maintenance | |
SUNCOR | 18-May-25 07:00 | 21-May-25 17:00 | 3.42 Days
Continuous |
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) | 635PP-1000 bus maintenance | |
EPCOR | 20-May-25 07:00 | 24-May-25 17:00 | 4.42 Days
Continuous |
1139L (367s Harry Smith - EP Riverview), RW2403 (EP Riverview), RW2405 (EP Riverview) | Riverview: 1139L Zone Doble and RWDS6/RWDS9/RWDS12 Disconnect Maintenance and Relay Maintenance | |
ALTALINK | 20-May-25 07:00 | 24-May-25 17:00 | 4.42 Days
Continuous |
367s 1139 (367s Harry Smith) | Riverview: 1139L Zone Doble and RWDS6/RWDS9/RWDS12 Disconnect Maintenance and Relay Maintenance | |
EPCOR | 20-May-25 07:00 | 30-May-25 17:00 | 10.42 Days
Continuous |
657s T1 (657s Summerside) | Summerside: TX1 DGA LCR | |
BCH | 20-May-25 09:00 | 30-May-25 17:00 | 10.33 Days
Continuous |
T3 (BCH Natal) | NTL Station Upgrade Project. Reconfigure NTL T3 bus connection and cut over to new station equipment | AB-BC |
ATCO | 20-May-25 10:00 | 22-May-25 16:00 | 2.25 Days
Continuous |
7L89 (721s La Corey - 826s Marguerite Lake) | GOI required for climbing inspection on 7L89 and for deficiency repair. | |
ATCO | 20-May-25 11:00 | 29-May-25 17:00 | 9.25 Days
Continuous |
7L199 (347s AML Fox Creek - 741s ATC Fox Creek), 741s 702 (741s ATC Fox Creek) | Fox Creek Substation Upgrade project. Demo old cables, install and terminate new cables, cut over to new protection. |
|
ATCO, CNRL | 21-May-25 09:00 | 21-May-25 12:30 | 3.5 Hours
Continuous |
847s 902 (847s Muskeg River) | PRC-005 - TRIP COIL TESTING | |
ATCO, CNRL | 21-May-25 13:00 | 21-May-25 17:00 | 4 Hours
Continuous |
847s 903 (847s Muskeg River) | PRC-005 - TRIP COIL TESTING | |
ATCO, CNRL | 22-May-25 09:00 | 22-May-25 12:30 | 3.5 Hours
Continuous |
847s 904 (847s Muskeg River) | PRC-005 - TRIP COIL TESTING | |
ATCO, CNRL | 22-May-25 13:00 | 22-May-25 17:00 | 4 Hours
Continuous |
847s 901 (847s Muskeg River) | PRC-005 - TRIP COIL TESTING | |
SUNCOR | 25-May-25 07:00 | 28-May-25 17:00 | 3.42 Days
Continuous |
635EDD-1000 144kV Bus 635PP-1001 (635EDD-1000), 635EDD-1000 635PT-1001 (635EDD-1000), 635EDD-1000 635-752-635PT-1001 (635EDD-1000), 635EDD-1000 635PS-1003 (635EDD-1000), 635EDD-1000 635PS-1009 (635EDD-1000), 635EDD-1000 635PS-1015 (635EDD-1000), 635EDD-1000 635PS-1021 (635EDD-1000), 635EDD-1000 635PS-1025 (635EDD-1000), 635EDD-1000 635PS-1029 (635EDD-1000), 635EDD-1000 635PS-1035 (635EDD-1000) | 635PP-1001 bus maintenance | |
EPCOR | 26-May-25 07:00 | 06-Jun-25 17:00 | 11.42 Days
Continuous |
805s T1 (805s Jasper), 72JM18 (EP 805s Jasper - Meadowlark), 72JW19 (EP 805s Jasper - Woodcroft), EP 805s J724 (EP 805s Jasper), EP 805s J722 (EP 805s Jasper), EP 805s J2401 (EP 805s Jasper) | Jasper: TX1 Zone, JM18 Zone, Doble and JDS15/JDS21/JAB5/JDS3/JDS2/JDS29/JDS16/MDS1 Disconnect Maintenance, and TX1, J2403, J2408 Relay Maintenance | |
ATCO | 26-May-25 10:00 | 29-May-25 16:00 | 3.25 Days
Continuous |
7L91 (715s Leming Lake - 826s Marguerite Lake) | GOI required for climbing inspection on 7L91 and for deficiency repair. | |
ATCO | 27-May-25 08:00 | 03-Jun-25 17:00 | 7.38 Days
Continuous |
7L224 (650s Hansman Lake - 774s Monitor) | Install interphase spacers on 7L224 | |
ALTALINK, TRANSALTA | 27-May-25 23:00 | 29-May-25 07:00 | 1.33 Days
Continuous |
250p T1 (250p Bighorn Plant) | maintenance | |
ALTALINK, TRANSALTA | 28-May-25 07:00 | 29-May-25 07:00 | 24 Hours
Continuous |
250p T2 (250p Bighorn Plant) | maintenance | |
ATCO | 28-May-25 09:00 | 29-May-25 14:00 | 29 Hours
Continuous |
717s 702 (717s Ethel Lake), 7L66 (715s Leming Lake - 717s Ethel Lake) | breaker maintenance | |
ATCO | 29-May-25 14:01 | 29-May-25 16:00 | 119 Mins
Continuous |
717s 701 (717s Ethel Lake), 7L28 (717s Ethel Lake - 846s Grand Centre) | PRC-005 TRIP COIL TESTING | |
ENMAX, ALTALINK | 31-May-25 14:00 | 02-Jun-25 14:00 | 2 Days
Continuous |
1109L (SS-25 - SS-65) | Cable testing, close cable open points on 1109L and salvage Temp O/H 1109L | |
ENMAX, ALTALINK | 31-May-25 14:00 | 02-Jun-25 14:00 | 2 Days
Continuous |
240kV West Bus (SS-25), 1109L (SS-25 - SS-65) | Altalink outage. Cable testing, close cable open points on 1109L and salvage Temp O/H 1109L. Expanding zone to include 1109L C25s Bus. Enmax grounding required, and Enmax to close 1109L risers removed from bus to potthead. | |
EPCOR | 02-Jun-25 07:00 | 08-Jun-25 17:00 | 6.42 Days
Continuous |
816s P2401 (816s Petrolia), 816s P2402 (816s Petrolia), 816s T1 (816s Petrolia) | Petrolia: TX1 Zone Doble and Disconnect Maintenance | |
ATCO, CNRL | 02-Jun-25 08:00 | 08-Jun-25 17:00 | 6.38 Days
Continuous |
859s 701TD (859s Primrose), 859s 701T (859s Primrose), 859s 52G (859s Primrose), 859s 701A (859s Primrose), 859s 701B (859s Primrose), 859s 704 (859s Primrose), 859s 704A (859s Primrose), 859s 701 (859s Primrose), 859s 704B (859s Primrose), 859s Protection & Control (859s Primrose), 859s RTU/SCADA (859s Primrose) | Perform maintenance activities in 859S. | |
ALTALINK, EPCOR | 02-Jun-25 09:30 | 02-Jun-25 17:00 | 7.5 Hours
Daily |
1057L (89s Ellerslie - 657s Summerside), 89s 452 (89s Ellerslie), 89s 352 (89s Ellerslie) | Summerside: 1057L Zone Doble and SUDS1/SUDS3/SUDS9 Disconnect Maintenance | |
ALTALINK, EPCOR | 02-Jun-25 09:30 | 05-Jun-25 17:00 | 3.31 Days
Continuous |
1057L (89s Ellerslie - 657s Summerside), 657s SU2402 (657s Summerside), 657s SU2401 (657s Summerside) | Summerside: 1057L Zone Doble and SUDS1/SUDS3/SUDS9 Disconnect Maintenance | |
ATCO | 02-Jun-25 15:00 | 30-Jun-25 14:00 | 27.96 Days
Continuous |
732s 902T (732s Mitsue) | Protection upgrade. Remove old protection, cut over to new protection and cut over equipment status, control and alarms to new station controller. | |
ALTALINK | 03-Jun-25 07:00 | 05-Jun-25 18:00 | 2.46 Days
Daily |
861L (71s Lamoureux - 258s Dow Hydrocarbons) | Maintenance and component replacements on various structures between 4-55. | |
ALTALINK, BCH | 04-Jun-25 09:00 | 10-Jun-25 17:00 | 6.33 Days
Continuous |
1L274 (BCH Natal - BCH Line Creek tap), T1 (BCH Natal), T2 (BCH Natal) | NTL Station Upgrade Project. Extend 1L274 to new NTL section; isolate NTL T1 & T2 section
NTL T1, NTL T2 (permanent removal) |
AB-BC |
EPCOR | 09-Jun-25 07:00 | 15-Jun-25 17:00 | 6.42 Days
Continuous |
H726 (EP Hardisty), EP 803s L721 (EP 803s Lambton), S724 (Strathcona), S723 (Strathcona), EP 803s T3 (EP 803s Lambton) | Lambton/Strathcona/Hardisty: LH8 Zone Doble and Relay Maintenance, LS24 Zone Doble, Strathcona TX3 Doble, LDS13/SDS10/SDS8/SDS9/SAB3/HDS13 Disconnect Maintenance | |
EPCOR | 09-Jun-25 07:00 | 20-Jun-25 17:00 | 11.42 Days
Continuous |
657s T2 (657s Summerside) | Summerside: TX2 DGA LCR | |
BCH | 09-Jun-25 09:00 | 13-Jun-25 17:00 | 4.33 Days
Continuous |
5RXN5 (BCH Cranbrook) | Purpose: Non Electrical testing | AB-BC |
ATCO | 09-Jun-25 09:00 | 23-Jun-25 17:30 | 14.35 Days
Continuous |
2029S BUILDING VALVE HALL, 2029s 1205 (2029s Heathfield), 2029s 1206 (2029s Heathfield) | Annual EATL outage at 2075s & 2029s.
2029s & 2075s AC & DC O&M. USE 2-70215 FOR 13L50 GOI USE 2-70216 FOR 2029s GOI USE 2-70217 FOR 2075s GOI |
|
ATCO | 09-Jun-25 09:00 | 23-Jun-25 17:30 | 14.35 Days
Continuous |
2075S BUILDING VALVE HALL, 2075s 916 (2075s Newell), 2075s 917 (2075s Newell) | Annual EATL outage at 2075s & 2029s.
2029s & 2075s AC & DC O&M. USE 2-70215 FOR 13L50 GOI USE 2-70216 FOR 2029s GOI USE 2-70217 FOR 2075s GOI |
|
ATCO | 09-Jun-25 09:00 | 23-Jun-25 17:30 | 14.35 Days
Continuous |
13L50 (DC LINK), 13L50 (2029s Heathfield - 2075s Newell) | Annual EATL outage at 2075s & 2029s.
2029s & 2075s AC & DC O&M. USE 2-70215 FOR 13L50 GOI USE 2-70216 FOR 2029s GOI USE 2-70217 FOR 2075s GOI |
|
ATCO | 09-Jun-25 12:00 | 13-Jun-25 16:00 | 4.17 Days
Continuous |
826s 902T (826s Marguerite Lake) | transformer major maintenance | |
EPCOR | 16-Jun-25 07:00 | 20-Jun-25 17:00 | 4.42 Days
Continuous |
1164L (816s Petrolia - EP Riverview), RW2402 (EP Riverview), RW2401 (EP Riverview), 816s P2403 (816s Petrolia), 816s P2404 (816s Petrolia) | Riverview: 1164L Zone Doble and Relay Maintenance | |
ENMAX, ALTALINK | 16-Jun-25 08:00 | 19-Jun-25 16:00 | 3.33 Days
Continuous |
28.80L (42s Sarcee - SS-28) | HV SW Replacement. 28SW80 | |
ENMAX, ALTALINK | 16-Jun-25 08:00 | 19-Jun-25 16:00 | 3.33 Days
Continuous |
28.80L (42s Sarcee - SS-28) | HV SW Replacement 28SW80 | |
ATCO | 23-Jun-25 12:00 | 04-Jul-25 16:00 | 11.17 Days
Continuous |
826s 901T (826s Marguerite Lake) | transformer major maintenance | |
ALTALINK | 25-Jun-25 07:00 | 25-Jun-25 16:00 | 9 Hours
Daily |
413L (239s Castle River - 632s Russell) | We need to complete maintenance on 239s138DS4 at Castle River and need to request an advice on 413L.. | |
ENMAX, ALTALINK | 27-Jun-25 08:00 | 03-Jul-25 16:00 | 6.33 Days
Continuous |
37.2TR (SS-37), 37.82L (74s Janet - SS-37) | HV SW Replacement. 37SW84, 37SW85, 37SW86 | |
ENMAX, ALTALINK | 27-Jun-25 08:00 | 03-Jul-25 16:00 | 6.33 Days
Continuous |
50L (44s Bearspaw Plant - SS-21) | HV SW Replacement. 37SW84, 37SW85, 37SW86 | |
EPCOR, ALTALINK | 02-Jul-25 07:00 | 06-Jul-25 17:00 | 4.42 Days
Continuous |
665s D2401 (665s Dome), 665s D2404 (665s Dome), 665s T3 (665s Dome), 665s D721 (665s Dome), 72DS26 (665s Dome - Strathcona), 909L (89s Ellerslie - 665s Dome), S721 (Strathcona) | Dome: TX3/DS26/909L Zone Doble and DDS1/DDS12/DDS13/DDS17/SDS3 Disconnect Maintenance and D721/D2404 Breaker Maintenance | |
ALTALINK, EPCOR | 02-Jul-25 07:00 | 08-Jul-25 17:00 | 6.42 Days
Continuous |
1055L (629s Argyll Transfer Station - 816s Petrolia), 816s P2402 (816s Petrolia), 816s P2403 (816s Petrolia) | 1055L: Pole Refurbishment and Petrolia Zone Doble and PDS4/PDS5/PDS11 Disconnect Maintenance | |
ALTALINK | 02-Jul-25 23:00 | 03-Jul-25 03:00 | 4 Hours
Continuous |
62s T1 (62s Brazeau Plant) | maintenance | |
ALTALINK | 03-Jul-25 03:00 | 03-Jul-25 07:00 | 4 Hours
Daily |
62s T2 (62s Brazeau Plant) | maintenance | |
BCH | 03-Jul-25 09:00 | 03-Jul-25 17:00 | 8 Hours
Continuous |
2L293 (BCH Nelway - BCH Selkirk) | Purpose: F26 AOP- This is for Maintenance on SEL | AB-BC |
EPCOR | 07-Jul-25 07:00 | 13-Jul-25 17:00 | 6.42 Days
Continuous |
52s E2402 (52s East Industrial) | East Industrial: TX2 Doble and Tap Changer Maintenance, E2402 Doble and Breaker Maintenance | |
ATCO | 07-Jul-25 09:00 | 09-Jul-25 12:00 | 2.13 Days
Continuous |
826s 903 (826s Marguerite Lake) | BREAKER MAINTENANCE | |
ATCO | 08-Jul-25 08:00 | 11-Jul-25 17:00 | 3.38 Days
Continuous |
7L701 (757s Battle River - 7LA701 tap) | Install interphase spacers | |
ALTALINK, EPCOR | 09-Jul-25 07:00 | 15-Jul-25 17:00 | 6.42 Days
Continuous |
1056L (89s Ellerslie - 629s Argyll Transfer Station) | 1056L: Pole Refurbishment | |
ATCO | 09-Jul-25 12:01 | 12-Jul-25 16:00 | 3.17 Days
Continuous |
826s 904 (826s Marguerite Lake) | BREAKER MAINTENANCE | |
ATCO, ALTALINK | 12-Jul-25 08:00 | 15-Jul-25 17:00 | 3.38 Days
Continuous |
7L701D1 (7LA701 tap), 701L (223s Strome - 7LA701 tap) | Install interphase spacers | |
ATCO, ALTALINK | 12-Jul-25 08:00 | 15-Jul-25 17:00 | 3.38 Days
Continuous |
701L (223s Strome - 7LA701 tap) | Install interphase spacers | |
ATCO | 14-Jul-25 09:00 | 16-Jul-25 12:00 | 2.13 Days
Continuous |
826s 907 (826s Marguerite Lake) | BREAKER MAINTENANCE | |
ALTALINK, EPCOR | 14-Jul-25 09:30 | 25-Jul-25 17:00 | 11.31 Days
Continuous |
1058L (657s Summerside - EP 803s Lambton), EP 803s L2403 (EP 803s Lambton), EP 803s L2404 (EP 803s Lambton), 657s SU2402 (657s Summerside), 657s SU2403 (657s Summerside) | Summerside/Lambton: 1058L Pole Refurbishment and 1058L Summerside Zone Doble and Disconnect Maintenance, L2403 SF6 Leak Repair | |
ATCO | 14-Jul-25 15:00 | 11-Aug-25 14:00 | 27.96 Days
Continuous |
732s 901T (732s Mitsue), 732s 701 (732s Mitsue), 732s 702 (732s Mitsue), 732s 902 (732s Mitsue), 732s 903 (732s Mitsue) | Protection upgrade. Remove old protection, cut over to new protection and cut over equipment status, control and alarms to new station controller. | |
ALTALINK | 15-Jul-25 08:30 | 15-Jul-25 16:30 | 8 Hours
Continuous |
786L (799s Coleman - BCH Natal) | Open "Open Point 'A' 170L to 786L removing bypass around 799s. | |
ALTALINK | 16-Jul-25 08:00 | 16-Jul-25 14:00 | 6 Hours
Continuous |
786L (799s Coleman - BCH Natal) | Remove breakers for Open Point 'B' at Str122. | |
ATCO | 16-Jul-25 12:01 | 18-Jul-25 16:00 | 2.17 Days
Continuous |
826s 908 (826s Marguerite Lake) | BREAKER MAINTENANCE | |
ALTALINK, TRANSALTA | 17-Jul-25 10:00 | 17-Jul-25 14:00 | 4 Hours
Daily |
250p T1 (250p Bighorn Plant) | maintenance | |
ALTALINK, TRANSALTA | 18-Jul-25 10:00 | 18-Jul-25 14:00 | 4 Hours
Daily |
250p T2 (250p Bighorn Plant) | maintenance | |
EPCOR | 21-Jul-25 07:00 | 27-Jul-25 17:00 | 6.42 Days
Continuous |
RW2403 (EP Riverview), RW2402 (EP Riverview), T2 (EP Riverview) | Riverview: TX2 Zone Doble and Disconnect Maintenance and Relay Maintenance | |
ATCO | 21-Jul-25 09:00 | 23-Jul-25 12:00 | 2.13 Days
Continuous |
2029s ACF11 (2029s Heathfield) | FILTER BANK AC MAINTENANCE | |
ATCO | 21-Jul-25 09:00 | 01-Aug-25 17:30 | 11.35 Days
Continuous |
2075s ACF11 (2075s Newell), 2075s ACF12 (2075s Newell), 2075s ACF13 (2075s Newell), 2075s ACF14 (2075s Newell), 2075s 901T (2075s Newell) | Leak Repairs 901T/SVC MAINTENANCE/FILTER BANK AC MAINTENANCE/ACF13 Resistor Lid Replacements |
|
ATCO | 22-Jul-25 07:00 | 23-Jul-25 18:00 | 1.46 Days
Continuous |
7L65 (709s Vegreville - 7LA65 tap), 7L65 (710s Vermilion - 7LA65 tap), 7LA65 tap | Repair/replace T-Tap switches Station outage to 708S |
|
ATCO | 23-Jul-25 13:00 | 25-Jul-25 17:30 | 2.19 Days
Continuous |
2029s ACF21 (2029s Heathfield) | FILTER BANK AC MAINTENANCE | |
ATCO | 28-Jul-25 09:00 | 30-Jul-25 12:00 | 2.13 Days
Continuous |
2029s ACF12 (2029s Heathfield) | FILTER BANK AC MAINTENANCE | |
ALTALINK, EPCOR | 28-Jul-25 09:30 | 01-Aug-25 17:00 | 4.31 Days
Continuous |
920L (71s Lamoureux - 557s Castle Downs), 557s CD2404 (557s Castle Downs), 557s CD2405 (557s Castle Downs) | Castledowns: 920LE Zone Doble and Disconnect Maintenance | |
ALTALINK, EPCOR | 28-Jul-25 09:30 | 08-Aug-25 17:00 | 11.31 Days
Continuous |
1059L (EP 803s Lambton - 1059AL tap), 1059L (38s East Edmonton - 1059AL tap), EP 803s L2404 (EP 803s Lambton), EP 803s L2401 (EP 803s Lambton) | 1059L: Pole Refurbishment | |
ATCO | 30-Jul-25 13:00 | 01-Aug-25 17:30 | 2.19 Days
Continuous |
2029s ACF22 (2029s Heathfield) | FILTER BANK AC MAINTENANCE | |
ATCO | 05-Aug-25 08:00 | 07-Aug-25 16:30 | 2.35 Days
Continuous |
7L702 (137s Sedgewick - 757s Battle River) | Interphase spacers and pole replacements | |
ALTALINK | 05-Aug-25 08:00 | 07-Aug-25 16:30 | 2.35 Days
Continuous |
702L (137s Sedgewick - 757s Battle River) | Interphase spacers and pole replacements | |
ATCO | 05-Aug-25 09:00 | 06-Aug-25 17:30 | 1.35 Days
Continuous |
2029s ACF13 (2029s Heathfield) | FILTER BANK AC MAINTENANCE | |
ATCO | 06-Aug-25 09:00 | 06-Aug-25 16:00 | 7 Hours
Continuous |
7L85 (803s ATC Bullpound - 7LA85 tap) | L-G Clearance mitigation at span 382 between Badlands and 803S Bull pound. | |
ATCO | 07-Aug-25 09:00 | 08-Aug-25 17:30 | 1.35 Days
Continuous |
2029s ACF23 (2029s Heathfield) | FILTER BANK AC MAINTENANCE | |
ALTALINK, EPCOR | 11-Aug-25 07:00 | 17-Aug-25 17:00 | 6.42 Days
Continuous |
657s SU2403 (657s Summerside), 657s SU2402 (657s Summerside), 657s T2 (657s Summerside) | Summerside: TX2 Zone Doble and Disconnect Maintenance | |
ATCO | 11-Aug-25 09:00 | 13-Aug-25 12:00 | 2.13 Days
Continuous |
825s 901 (825s Whitefish Lake) | BREAKER MAINTENANCE | |
ATCO | 11-Aug-25 10:00 | 14-Aug-25 16:30 | 3.27 Days
Continuous |
7L702 (137s Sedgewick - 757s Battle River) | Interphase spacers and pole replacements | |
ALTALINK | 11-Aug-25 10:00 | 14-Aug-25 16:30 | 3.27 Days
Continuous |
702L (137s Sedgewick - 757s Battle River) | Interphase spacers and pole replacements | |
ATCO | 11-Aug-25 10:00 | 15-Aug-25 17:00 | 4.29 Days
Continuous |
9L16 (755s Cordel - 972s Tinchebray) | Install foundations for new 9L16 structures 73 and 74 in preparation of the future line bay re-termination into 972S Tinchebray expansion. | |
ATCO | 13-Aug-25 12:01 | 15-Aug-25 16:00 | 2.17 Days
Continuous |
825s 902 (825s Whitefish Lake) | BREAKER MAINTENANCE | |
EPCOR | 18-Aug-25 07:00 | 24-Aug-25 17:00 | 6.42 Days
Continuous |
987s CC721 (987s Clover Bar), 987s T2 (987s Clover Bar) | Cloverbar: TX2 Zone Doble and Leak Repair | |
EPCOR, ALTALINK | 18-Aug-25 07:00 | 24-Aug-25 17:00 | 6.42 Days
Continuous |
657s SU2405 (657s Summerside), 657s SU2404 (657s Summerside), 657s T1 (657s Summerside) | Summerside: TX1 Zone Doble and Disconnect Maintenance | |
ATCO | 18-Aug-25 09:00 | 20-Aug-25 12:00 | 2.13 Days
Continuous |
825s 903 (825s Whitefish Lake) | BREAKER MAINTENANCE | |
ATCO | 18-Aug-25 10:00 | 21-Aug-25 16:30 | 3.27 Days
Continuous |
7L702 (137s Sedgewick - 757s Battle River) | Interphase spacers and pole replacements | |
ALTALINK | 18-Aug-25 10:00 | 21-Aug-25 16:30 | 3.27 Days
Continuous |
702L (137s Sedgewick - 757s Battle River) | Interphase spacers and pole replacements | |
ATCO | 20-Aug-25 12:01 | 22-Aug-25 16:00 | 2.17 Days
Continuous |
825s 904 (825s Whitefish Lake) | BREAKER MAINTENANCE | |
ALTALINK | 20-Aug-25 23:00 | 21-Aug-25 03:00 | 4 Hours
Continuous |
62s T1 (62s Brazeau Plant) | maintenance | |
ALTALINK | 21-Aug-25 03:00 | 21-Aug-25 07:00 | 4 Hours
Daily |
62s T2 (62s Brazeau Plant) | maintenance | |
EPCOR | 23-Aug-25 07:00 | 29-Aug-25 17:00 | 6.42 Days
Continuous |
665s T1 (665s Dome), 665s D2401 (665s Dome), 665s D2402 (665s Dome) | Dome: TX1 Zone Doble and DDS2/DDS3/DAB1 Disconnect Maintenance and Relay Maintenance | |
ATCO | 25-Aug-25 09:00 | 27-Aug-25 16:00 | 2.29 Days
Continuous |
825s 905 (825s Whitefish Lake) | BREAKER MAINTENANCE | |
ALTALINK, EPCOR | 25-Aug-25 09:30 | 29-Aug-25 17:00 | 4.31 Days
Continuous |
915L (38s East Edmonton - 987s Clover Bar), 987s C2403 (987s Clover Bar), 987s C2405 (987s Clover Bar) | Cloverbar: 915L Zone Doble and CDS35/CDS36/CDS37 Disconnect Maintenance | |
ATCO | 25-Aug-25 15:00 | 08-Sep-25 14:00 | 13.96 Days
Continuous |
9L40 (732s Mitsue - 809s Louise Creek), 732s 901 (732s Mitsue), 732s 902 (732s Mitsue) | Protection upgrade. Remove old protection, cut over to new protection and cut over equipment status, control and alarms to new station controller. | |
EPCOR | 02-Sep-25 07:00 | 14-Sep-25 17:00 | 12.42 Days
Continuous |
EP 803s T2 (EP 803s Lambton), EP 803s L2402 (EP 803s Lambton), EP 803s L2405 (EP 803s Lambton) | Lambton: LAB2 LCR and TX2 Zone Doble and LDS4/LDS9 Disconnect and Tap Changer Maintenance | |
ATCO | 06-Sep-25 08:00 | 09-Sep-25 17:00 | 3.38 Days
Continuous |
7L85 (804s Wintering Hills - 7LA85 tap) | Install interphase spacers | |
EPCOR | 08-Sep-25 07:00 | 14-Sep-25 17:00 | 6.42 Days
Continuous |
816s P2404 (816s Petrolia), 816s P2405 (816s Petrolia), 816s T2 (816s Petrolia) | Petrolia: TX2 Zone Doble and Disconnect Maintenance | |
ALTALINK, EPCOR | 08-Sep-25 09:30 | 12-Sep-25 17:00 | 4.31 Days
Continuous |
921L (71s Lamoureux - 987s Clover Bar), 987s C2404 (987s Clover Bar), 987s C2406 (987s Clover Bar) | Cloverbar: 921L Zone Doble and CDS30/CDS32/CDS40 Disconnect Maintenance | |
ATCO | 08-Sep-25 15:00 | 22-Sep-25 14:00 | 13.96 Days
Continuous |
9L913 (69s North Barrhead - 732s Mitsue), 732s 903 (732s Mitsue), 732s 904 (732s Mitsue) | Protection upgrade. Remove old protection, cut over to new protection and cut over equipment status, control and alarms to new station controller. | |
ATCO, ALTALINK | 09-Sep-25 09:00 | 10-Sep-25 18:00 | 1.38 Days
Continuous |
7L760D4 (7LA760 tap), 7L760D5 (7LA760 tap), 7L760 (7LA760 tap - 7LC760 tap), 760L (760AL tap - 7LA760 tap) | Building Temp Bypass to replace switches 7L760D4, 7L760D5 and 7LA760D1. Will Need COG from AltaLink at 163s1 |
|
ATCO | 09-Sep-25 17:01 | 14-Sep-25 17:00 | 5 Days
Continuous |
7L85 (803s ATC Bullpound - 7LA85 tap) | Install interphase spacers | |
ALTALINK, TRANSALTA | 09-Sep-25 23:00 | 11-Sep-25 07:00 | 1.33 Days
Continuous |
250p T2 (250p Bighorn Plant) | maintenance | |
ALTALINK, TRANSALTA | 10-Sep-25 07:00 | 11-Sep-25 07:00 | 24 Hours
Continuous |
250p T1 (250p Bighorn Plant) | maintenance | |
EPCOR | 15-Sep-25 07:00 | 21-Sep-25 17:00 | 6.42 Days
Continuous |
EP 803s L2401 (EP 803s Lambton), EP 803s L2402 (EP 803s Lambton), EP 803s T1 (EP 803s Lambton) | Lambton: TX1 Zone Doble and LAB1/LDS2/LDS3 Disconnect Maintenance | |
ATCO | 15-Sep-25 08:00 | 16-Sep-25 17:00 | 1.38 Days
Continuous |
7L85 (801s Anderson - ATC 803s Bullpound) | Crossarm Replacements, install interphase spacers, clearance mitigation | |
ALTALINK, EPCOR | 15-Sep-25 09:30 | 21-Sep-25 17:00 | 6.31 Days
Continuous |
909L (310p Sundance - 665s Dome), 665s D2402 (665s Dome), 665s D2403 (665s Dome), 665s T2 (665s Dome) | Dome: 909LE/TX2 Doble and DDS4/DDS5/DAB2 Disconnect Maintenance and Relay Maintenance | |
ALTALINK, TRANSALTA | 16-Sep-25 07:00 | 16-Sep-25 18:00 | 11 Hours
Daily |
514L (396s Pincher Creek - 514BL tap), 514L (513s Lundbreck - 514BL tap), 322s T1 (322s Cowley Ridge) | South will be performing maintenance on STR 16, 76 & 170 | |
SUNCOR | 17-Sep-25 00:00 | 23-Sep-25 00:00 | 6 Days
Continuous |
29PL7-4 (29EDD-65 - 29EDD-71), 29EDD-65 29PS-0284 (29EDD-65 Edd65Sub), 29EDD-71 29PS-243 (29EDD-71 Edd71Sub), 29EDD-65 29PT-0257 (29EDD-65) | FB-Maintenance, Repairs and Testing - PRC-5 Testing, 29PT-260, 29PL7-4, 29PT-241, 29PT-257, 29PS-243 (300415541, 31807283, 31773784, 300109525) | |
ATCO, ALTALINK | 21-Sep-25 08:00 | 23-Sep-25 17:00 | 2.38 Days
Continuous |
760L (760AL tap - 7LA760 tap) | Install interphase spacers | |
ATCO | 22-Sep-25 09:30 | 25-Sep-25 17:00 | 3.31 Days
Continuous |
7L749 (899s Edgerton - 7LB749 tap) | Interphase spacers Cross arm changes |
|
ATCO | 22-Sep-25 15:00 | 06-Oct-25 14:00 | 13.96 Days
Continuous |
9L56 (720s Wabasca - 732s Mitsue), 732s 906 (732s Mitsue), 732s 904 (732s Mitsue) | Protection upgrade. Remove old protection, cut over to new protection and cut over equipment status, control and alarms to new station controller. | |
ATCO | 23-Sep-25 08:00 | 30-Sep-25 17:00 | 7.38 Days
Continuous |
7L85 (801s Anderson - ATC 803s Bullpound) | Crossarm Replacements, install interphase spacers, clearance mitigation | |
ATCO, ALTALINK | 29-Sep-25 08:30 | 03-Oct-25 17:30 | 4.38 Days
Continuous |
7L77 (395s North Holden - 709s Vegreville) | Install interphase spacers | |
ATCO, ALTALINK | 29-Sep-25 09:00 | 03-Oct-25 17:00 | 4.33 Days
Continuous |
7L77 (395s North Holden - 709s Vegreville) | Install interphase spacers | |
ALTALINK | 01-Oct-25 08:00 | 11-Nov-25 17:00 | 41.42 Days
Continuous |
102s SVC (102s Langdon), 102s T4 (102s Langdon) | the controls change | AB-BC |
ATCO | 06-Oct-25 09:30 | 07-Oct-25 17:30 | 1.33 Days
Continuous |
845s 703 (845s Big Mountain), 845s 710 (845s Big Mountain), 7L228 (845s Big Mountain - 7L20 tap) | Replace Crank Mechanisms on 144 kV Switches at 845s Big Mountain - 703B Replace Crank Mechanisms on 144 kV Switches at 845s Big Mountain - 704B |
|
ATCO | 07-Oct-25 08:00 | 14-Oct-25 17:00 | 7.38 Days
Continuous |
7L85 (801s Anderson - ATC 803s Bullpound) | Crossarm Replacements, install interphase spacers, clearance mitigation | |
ALTALINK | 08-Oct-25 23:00 | 09-Oct-25 03:00 | 4 Hours
Continuous |
62s T1 (62s Brazeau Plant) | maintenance | |
ALTALINK | 09-Oct-25 03:00 | 09-Oct-25 07:00 | 4 Hours
Daily |
62s T2 (62s Brazeau Plant) | maintenance | |
ATCO | 14-Oct-25 08:00 | 21-Oct-25 17:00 | 7.38 Days
Continuous |
7L171 (802s Michichi Creek - 804s Wintering Hills) | Install interphase spacers | |
ALTALINK, TRANSALTA | 29-Oct-25 10:00 | 29-Oct-25 14:00 | 4 Hours
Daily |
250p T1 (250p Bighorn Plant) | maintenance | |
ALTALINK, TRANSALTA | 30-Oct-25 10:00 | 30-Oct-25 14:00 | 4 Hours
Daily |
250p T2 (250p Bighorn Plant) | maintenance | |
ATCO | 03-Nov-25 12:00 | 09-Dec-25 17:00 | 36.21 Days
Continuous |
9L99 (801s Anderson - 807s Sheerness) | Replace Breaker 901 @ 807S Sheerness, complete line 21A, 21B/9L99 protection upgrade and Commissioning | |
ALTALINK | 26-Nov-25 23:00 | 27-Nov-25 03:00 | 4 Hours
Continuous |
62s T1 (62s Brazeau Plant) | maintenance | |
ALTALINK | 27-Nov-25 03:00 | 27-Nov-25 07:00 | 4 Hours
Daily |
62s T2 (62s Brazeau Plant) | maintenance | |
ATCO | 08-Dec-25 13:00 | 11-Dec-25 15:00 | 3.08 Days
Continuous |
7L89 (721s La Corey - 826s Marguerite Lake) | Line to ground clearance mitigation spans 202-203; 209-210; 216-217-218; 217-218; 221-222-223-224; 255-256; 313-314-315 | |
ATCO | 15-Dec-25 13:00 | 18-Dec-25 15:00 | 3.08 Days
Continuous |
7L89 (721s La Corey - 826s Marguerite Lake) | Line to ground clearance mitigation spans 202-203; 209-210; 216-217-218; 217-218; 221-222-223-224; 255-256; 313-314-315 | |
ALTALINK, TRANSALTA | 17-Dec-25 10:00 | 17-Dec-25 14:00 | 4 Hours
Daily |
250p T1 (250p Bighorn Plant) | maintenance | |
ALTALINK, TRANSALTA | 18-Dec-25 10:00 | 18-Dec-25 14:00 | 4 Hours
Daily |
250p T2 (250p Bighorn Plant) | maintenance | |
SUNCOR | 02-Mar-26 08:00 | 08-Mar-26 20:00 | 6.46 Days
Continuous |
29PL9-16 (29EDD-1 Millennium - 29EDD-94 Voyageur) | 29EDD1;29PT418/29PL9-16 SYSTEM;PM 5y,10y |
|
SUNCOR | 09-Mar-26 08:00 | 15-Mar-26 20:00 | 6.5 Days
Continuous |
29PL9-17 (29EDD-1 Millennium - 29EDD-94 Voyageur) | 29EDD1;29PT419/29PL9-17 SYSTEM;PM 5y,10y |
|
ATCO, SUNCOR | 16-Mar-26 08:00 | 22-Mar-26 20:00 | 6.5 Days
Continuous |
29PL9-1 (29EDD-1 Millennium - 848s Ruth Lake) | 29EDD1;29CVT-3 SYSTEM;PM 5y,10y |
|
ATCO, SUNCOR | 23-Mar-26 08:00 | 29-Mar-26 20:00 | 6.5 Days
Continuous |
29PL9-2 (29EDD-1 Millennium - 848s Ruth Lake) | BP (Corey) - 29EDD1;29CVT-1 SYSTEM;PM 5y,10y | |
SUNCOR | 06-Apr-26 08:00 | 12-Apr-26 20:00 | 6.5 Days
Continuous |
29PL9-3 (29EDD-1 Millennium - 29EDD-3), 29EDD-3 29PT-6 (29EDD-3) | 29EDD1;29CVT-4 SYSTEM;PM 5y,10y; |
|
SUNCOR | 13-Apr-26 08:00 | 19-Apr-26 20:00 | 6.5 Days
Continuous |
29EDD-1 T1 (29EDD-1 Millennium), 29EDD-1 260kV South Bus 1 (29EDD-1 Millennium), 29EDD-1 72kV South Bus (29EDD-1 Millennium) | 29EDD1;XFMR T1; X260B1; X72B1 SYSTEM;PM 5y | |
ATCO | 13-Apr-26 10:00 | 18-Apr-26 17:00 | 5.29 Days
Continuous |
7L22 (790s Poplar Hill - 7L88 tap) | Cut open 7L22, connect new line section to new 2061S Dobbs 7L22/21B relay upgrades at 790S Poplar Hill and 811S Clairmont Lake On completion energize new 2061S Dobbs substation |
|
SUNCOR | 20-Apr-26 08:00 | 26-Apr-26 20:00 | 6.5 Days
Continuous |
29EDD-1 T2 (29EDD-1 Millennium), 29EDD-1 260kV North Bus 2 (29EDD-1 Millennium), 29EDD-1 72kV North Bus (29EDD-1 Millennium) | 29EDD1;XFMR T2; N260B2; N72B1 SYSTEM;PM 5y | |
ATCO | 03-May-26 10:00 | 04-May-26 17:00 | 31 Hours
Continuous |
7L22 (811s Clairmont Lake - 7L88 tap) | 7L22/21B relay upgrade at 811S Clairmont Lake Upon completion new 2061S Dobbs substation ready to energize |
|
SUNCOR | 04-May-26 08:00 | 10-May-26 20:00 | 6.5 Days
Continuous |
29PL6-6 (29EDD-1 Millennium - 29EDD-2 Tar Island), 29EDD-2 29PT-2 (29EDD-2 Tar Island) | BP (Corey) - 29EDD2;29PP-1 SYSTEM;PM 5y | |
ATCO | 04-May-26 09:00 | 18-May-26 17:30 | 14.35 Days
Continuous |
13L50 (2029s Heathfield - 2075s Newell) | Kinbrook Addition to 2075s | |
ATCO | 04-May-26 09:00 | 18-May-26 17:30 | 14.35 Days
Continuous |
2029s T11 (2029s Heathfield) | Kinbrook Addition to 2075s Newell. | |
ATCO | 04-May-26 09:00 | 18-May-26 17:30 | 14.35 Days
Continuous |
2075s T11 (2075s Newell) | Kinbrook Addition to 2075s Newell. | |
SUNCOR | 18-May-26 08:00 | 24-May-26 20:00 | 6.5 Days
Continuous |
29PL9-12 (29EDD-34 - 29EDD-65) | BP (Corey) - 29EDD34;29PL9-12 SYSTEM;PM 5y,10y |
|
ATCO | 19-May-26 09:00 | 19-May-26 17:00 | 8 Hours
Continuous |
9L16 (755s Cordel - 972s Tinchebray), 755s 904 (755s Cordel), 755s 905 (755s Cordel), 972s 903 (972s Tinchebray) | Disconnect 9L16 from existing A-frame deadend and 9L16D2 (to be renamed 9L86D1) Restore bus leave renamed 9L86D1 open for future line connection. |
|
ATCO | 19-May-26 09:00 | 29-May-26 17:00 | 10.33 Days
Continuous |
9L16 (755s Cordel - 972s Tinchebray) | Disconnect 9L16 from existing A-frame deadend and 9L16D2 (to be renamed 9L86D1) Restore bus leave renamed 9L86D1 open for future line connection. |
|
ATCO | 08-Mar-27 10:00 | 17-Mar-27 17:00 | 9.25 Days
Continuous |
9L24 (946s Oakland - 959s Lanfine), 959s 906 (959s Lanfine), 959s 905 (959s Lanfine), 946s 902 (946s Oakland), 946s 903 (946s Oakland) | Replace A/B protection relays at 959S Lanfine and 946S Oakland Cut in and reroute 9L24 Connect new 9LA24 T-tap Commission Telecom and Protection to new 1072S Rose Lynn substation |
|
ATCO | 20-Jul-27 08:00 | 21-Jul-27 17:00 | 1.38 Days
Continuous |
7L53 (706s Irish Creek - 7LA53 tap), 7LA53 (969s Lindbergh - 7L53 tap), 7L53 (700s Bonnyville - 7LA53 tap) | Cold Lake Area Project to connect 1064s | |
ATCO | 22-Jul-27 08:00 | 25-Jul-27 17:00 | 3.38 Days
Continuous |
7L91 (715s Leming Lake - 826s Marguerite Lake) | Cold Lake Area Energy Centre Project |
AB-BC, AB-SK & AB-MATL: refer to AESO web posting: | http://itc.aeso.ca/itc/public/atc |
Also, | |
AB-BC, AB-SK & AB-MATL: refer to ISO Rule 203.6: | http://www.aeso.ca/rulesprocedures/18592.html |
Prepared On: | 2025-02-05 16:26:06 |
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 |