![]() 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 |
|
| 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 |
01-May-26 17:00 |
EPCOR |
TE |
Protection & Control (Woodcroft) |
Woodcroft: protection blocking for merging unit and protection upgrade. |
396.42 Days
Continuous |
|
| 14-May-25 08:00 |
13-Mar-26 16:00 |
ENMAX |
TE |
Protection & Control (SS-32) |
32sub 138kV autoswitching protection outage |
303.33 Days
Continuous |
|
| 22-Jul-25 08:30 |
31-Mar-26 16:30 |
ALTALINK |
Outage |
263s C1 (263s Strachan) |
forced outage |
252.33 Days
Continuous |
|
| 25-Jul-25 17:01 |
17-Apr-26 17:00 |
EPCOR |
Outage |
T2 (EP Riverview) |
bushing test failure (found during OE110184) |
266 Days
Continuous |
|
| 12-Sep-25 08:00 |
19-Jun-26 16:00 |
ENMAX |
Outage |
33.1TR (SS-33) |
tap changer refurbishments. soak test required |
280.33 Days
Continuous |
|
| 27-Nov-25 08:30 |
27-Nov-27 16:30 |
ALTALINK |
TE |
89s Protection & Control (89s Ellerslie) |
DSP card replacements on1057L B87/L3 and B240B1 B87/240B1 |
730.33 Days
Daily |
|
| 04-Jan-26 08:00 |
02-Sep-26 16:00 |
SUNCOR |
Outage |
29EDD-34 260kV Bus 29PP-45 (29EDD-34), 29EDD-34 29-952-113 (29EDD-34) |
urgent repairs on 29PT-224 at 29EDD34 on 29PP-45 bus |
241.29 Days
Continuous |
|
| 05-Jan-26 08:00 |
22-Mar-26 16:00 |
ENMAX |
Outage |
1.80L (SS-1 - SS-28), 28B138-1.80 (SS-28) |
1 sub transmission line cut over |
76.29 Days
Continuous |
|
| 05-Jan-26 08:00 |
22-Mar-26 16:00 |
ENMAX |
Outage |
1.81L (SS-1 - SS-20), 20B138-1.81 (SS-20) |
1 sub transmission line cut over |
76.29 Days
Continuous |
|
| 08-Jan-26 15:00 |
28-Feb-26 17:00 |
ALTALINK |
Outage |
42s C2 (42s Sarcee) |
forced outage |
51.08 Days
Daily |
|
| 12-Jan-26 07:00 |
03-Apr-26 17:00 |
EPCOR |
TE |
330p Protection & Control (330p Genesee) |
protect blocking, annual relay maintenance and password changes |
81.38 Days
Continuous |
|
| 12-Jan-26 07:00 |
01-May-26 17:00 |
EPCOR |
TE |
Protection & Control (Rossdale) |
protection blocking, relay maintenance |
109.38 Days
Continuous |
|
| 12-Jan-26 07:00 |
03-Apr-26 17:00 |
EPCOR |
TE |
987s Protection & Control (987s Clover Bar) |
protection blocking, relay maintenance |
81.38 Days
Continuous |
|
| 17-Jan-26 11:00 |
28-Feb-26 17:00 |
BHE Canada |
Outage |
120s C2 (120s Picture Butte) |
forced outage |
42.25 Days
Continuous |
|
| 21-Jan-26 08:00 |
30-Oct-26 16:00 |
ENMAX |
Outage |
5.7TR (SS-5) |
25kV switchgear replacement |
282.29 Days
Continuous |
|
| 03-Feb-26 09:00 |
30-Jun-26 17:00 |
ATCO |
TE |
972s RTU/SCADA (972s Tinchebray) |
config changes needed throughout the CETO project |
147.29 Days
Continuous |
|
| 06-Feb-26 07:00 |
15-Mar-26 17:30 |
ALTALINK |
RB |
793L (87s Gaetz - 535s Joffre) |
crews will be setting structures on 986L/962L STR’s 41-56 & 24-41 and will require a Reclosure Block on
793L |
37.4 Days
Daily |
|
| 08-Feb-26 07:00 |
06-Apr-26 18:00 |
ALTALINK |
Outage |
799L (235s Entwistle - 443s South Mayerthorpe), 235s 799N (235s Entwistle) |
799L rebuild between Str 721B-758 (Section B) |
57.42 Days
Continuous |
|
| 09-Feb-26 08:00 |
13-Mar-26 16:00 |
ENMAX |
TE |
Protection & Control (SS-32) |
32sub zone 31 and zone 32 bus differential protection outage |
32.29 Days
Continuous |
|
| 09-Feb-26 09:00 |
26-Jun-26 17:00 |
ATCO |
TE |
972s Protection & Control (972s Tinchebray) |
block all 50BF protection until cutovers and associated commissioning are complete |
137.29 Days
Continuous |
|
| 15-Feb-26 07:00 |
28-Feb-26 17:30 |
ALTALINK |
RB |
759L (87s Gaetz - 276s Prentiss) |
stringing new lines under construction |
13.44 Days
Continuous |
|
| 16-Feb-26 08:00 |
28-Feb-26 16:00 |
ENMAX |
TE |
Protection & Control (SS-28) |
transmission line cut over, 1.80L reconfiguration to new 1 sub- settings changes for new protection |
12.33 Days
Daily |
|
| 16-Feb-26 08:00 |
28-Feb-26 16:00 |
ENMAX |
TE |
Protection & Control (SS-28) |
transmission line cut over, 1.80L reconfiguration to new 1 sub- settings changes for new protection |
12.33 Days
Daily |
|
| 16-Feb-26 08:00 |
28-Feb-26 16:00 |
ENMAX |
TE |
Protection & Control (SS-28) |
bus differential protection outage, transmission line cut over for 1.80L reconfiguration to new 1 sub- settings changes for new protection |
12.33 Days
Daily |
|
| 17-Feb-26 07:00 |
06-Mar-26 17:00 |
EPCOR |
Outage |
T1 (Woodcroft), W721 (Woodcroft), W722 (Woodcroft), 72JW19 (EP 805s Jasper - Woodcroft) |
Woodcroft TX1 LCR demo |
17.42 Days
Continuous |
|
| 17-Feb-26 07:00 |
03-Mar-26 17:00 |
EPCOR |
TE |
EP 511s RTU/SCADA (EP 511s Victoria) |
upgrade RTU |
14.42 Days
Continuous |
|
| 17-Feb-26 07:30 |
27-Feb-26 17:30 |
ALTALINK |
RB |
974L (39s Bickerdike - 310p Sundance) |
fixing piles str 165 |
10.42 Days
Daily |
|
| 17-Feb-26 07:30 |
27-Feb-26 17:30 |
ALTALINK |
RB |
973L (39s Bickerdike - 310p Sundance) |
fixing piles str 165 |
10.42 Days
Daily |
|
| 17-Feb-26 08:00 |
26-Feb-26 16:00 |
ATCO |
Outage |
7L48 (794s Valleyview - 7LA48 tap), 794s 703 (794s Valleyview) |
pole and cross arm replacement |
9.33 Days
Continuous |
|
| 17-Feb-26 09:00 |
03-Mar-26 17:00 |
ATCO |
Outage |
972s 240kV Bus 900BS1 (972s Tinchebray) |
install breaker 904 and 904CT |
14.33 Days
Continuous |
|
| 17-Feb-26 10:00 |
03-Mar-26 17:00 |
ATCO |
TE |
972s Protection & Control (972s Tinchebray) |
9L59 and 9L16 protections need to have 901 breaker status simulated “open” over the course of 1-00484273 |
14.29 Days
Continuous |
|
| 17-Feb-26 12:00 |
09-Apr-26 13:31 |
ATCO |
TE |
882s RTU/SCADA (882s Triangle) |
updating RTU/station controller configuration during SCADA upgrade project |
51.02 Days
Continuous |
|
| 17-Feb-26 13:00 |
12-Mar-26 13:00 |
ATCO |
TE |
733s Protection & Control (733s Simonette), 733s RTU/SCADA (733s Simonette) |
tying in RAS circuits to relays, updating RTU |
22.96 Days
Continuous |
|
| 17-Feb-26 17:30 |
12-Mar-26 17:30 |
ALTALINK |
RB |
202L (178s Cynthia - 202AL tap), 202L (61s Lodgepole - 202AL tap) |
safety requirement; create/close 202L open point 'B' |
22.96 Days
Continuous |
|
| 22-Feb-26 10:00 |
27-Feb-26 18:00 |
ALTALINK |
Outage |
443L (55s Olds - 214s Innisfail), 55s 443 (55S Olds), 214s 443 (214s Innisfail) |
structure replacements from 443L63 – 443L137 and 55s83 switch repairs |
5.33 Days
Continuous |
|
| 23-Feb-26 07:00 |
27-Feb-26 17:00 |
EPCOR |
Outage |
EP 511s Victoria T4 (EP 511s Victoria), EP 511s V725 (EP 511s Victoria), EP 511s V726 (EP 511s Victoria), EP 511s V722 (EP 511s Victoria) |
relay maintenance and SCADA RTU upgrade on Victoria TX2 |
4.42 Days
Continuous |
|
| 23-Feb-26 07:00 |
23-Mar-26 07:00 |
EPCOR |
Outage |
805s T3 (805s Jasper) |
bushing change |
27.96 Days
Continuous |
|
| 23-Feb-26 07:00 |
27-Feb-26 17:00 |
EPCOR |
Outage |
805s T3 (805s Jasper), EP 805s J2404 (EP 805s Jasper), EP 805s J2405 (EP 805s Jasper) |
emergency outage for scaffold build for bushing change (PCB) |
4.42 Days
Continuous |
|
| 23-Feb-26 07:00 |
06-Mar-26 17:00 |
EPCOR |
TE |
Protection & Control (EPCOR Hardisty) |
relay maintenance |
11.42 Days
Continuous |
|
| 23-Feb-26 08:00 |
27-Feb-26 18:00 |
ENMAX |
Outage |
20.1TR (SS-20) |
20 SUB switchgear replacement. 1 sub transmission line cut over |
4.42 Days
Continuous |
|
| 23-Feb-26 08:00 |
26-Feb-26 17:00 |
ALTALINK |
TE |
AltaLink Telecom Equipment, 263s RTU/SCADA (263s Strachan) |
firewall upgrade and LAN switch upgrade |
3.38 Days
Daily |
|
| 23-Feb-26 08:00 |
26-Feb-26 18:00 |
ENMAX |
TE |
Protection & Control (SS-20) |
20 sub 94-1 tripping relay outage, BMR 20 SUB switchgear replacement |
3.42 Days
Daily |
|
| 23-Feb-26 08:00 |
26-Feb-26 18:00 |
ENMAX |
TE |
Protection & Control (SS-20) |
20 sub BMR-82 protection outage, 20 SUB switchgear replacement |
3.42 Days
Daily |
|
| 23-Feb-26 08:00 |
26-Feb-26 18:00 |
ENMAX |
TE |
Protection & Control (SS-20) |
20 sub BMR-81 protection outage, switchgear replacement |
3.42 Days
Daily |
|
| 23-Feb-26 10:00 |
26-Feb-26 17:30 |
ALTALINK |
TE |
237s Protection & Control (237s Foothills) |
PRC maintennace |
3.31 Days
Daily |
|
| 23-Feb-26 10:00 |
26-Feb-26 15:00 |
ATCO |
TE |
749s Flyingshot Lake RTU/SCADA |
RTU updates |
3.21 Days
Continuous |
|
| 23-Feb-26 10:00 |
26-Feb-26 17:00 |
ALTALINK |
TE |
237s Protection & Control (237s Foothills) |
PRC maintenance |
3.29 Days
Daily |
|
| 23-Feb-26 10:00 |
27-Feb-26 17:30 |
ATCO |
TE |
768s Protection & Control (768s Rowley) |
PRC-005 relay testing |
4.31 Days
Continuous |
|
| 23-Feb-26 10:00 |
26-Feb-26 17:00 |
ALTALINK |
TE |
266s Protection & Control (266s SC1) |
PRC maintenance |
3.29 Days
Daily |
|
| 23-Feb-26 11:00 |
26-Feb-26 17:00 |
ALTALINK |
TE |
288s Protection & Control (288s Wolf Creek) |
card replacement and standard relay maintenance |
3.25 Days
Daily |
|
| 23-Feb-26 11:00 |
26-Feb-26 17:00 |
ALTALINK |
TE |
38s Protection & Control (38s East Edmonton) |
relay maintenance |
3.25 Days
Daily |
|
| 24-Feb-26 08:00 |
10-Mar-26 16:00 |
Syncrude |
Outage |
11 (Aurora), 12 (Aurora), 13 (Aurora), T3 (Aurora), UT1 (Aurora), 11A (Aurora), 11B (Aurora), 12A (Aurora), 12B (Aurora), 13A (Aurora), 13B (Aurora), 89-15 (Aurora), 89-16 (Aurora), G20 (Aurora) |
zone 6, 6 year PM |
14.29 Days
Continuous |
|
| 24-Feb-26 08:00 |
02-Mar-26 16:00 |
ATCO, USPCE |
RB |
7L15 (841s Long Lake - 856s Kinosis) |
hop required on 7L15 for pole changes |
6.33 Days
Continuous |
|
| 24-Feb-26 08:00 |
27-Feb-26 17:30 |
ATCO |
TE |
2075s Protection & Control (2075s Newell) |
PRC-005 relay testing on AC filter 1 protection & AC filter |
3.4 Days
Continuous |
|
| 25-Feb-26 07:30 |
26-Feb-26 16:00 |
ENMAX |
Outage |
B138-83 (SS-1), B138-84 (SS-1) |
1 sub transmission line cut over, 87LA-1.80L and 87LB-1.80L end to end |
1.35 Days
Continuous |
|
| 25-Feb-26 08:00 |
27-Feb-26 17:00 |
ALTALINK |
TE |
347s RTU/SCADA (347s Fox Creek) |
config update for 347s199W breaker replacement |
2.38 Days
Daily |
|
| 25-Feb-26 08:00 |
26-Feb-26 17:00 |
ALTALINK |
TE |
87s RTU/SCADA (87s Gaetz) |
urgent SCADA change for CETO |
1.38 Days
Continuous |
|
| 25-Feb-26 09:00 |
26-Feb-26 17:00 |
ATCO |
TE |
851s RTU/SCADA (851s Morse River), 809s RTU/SCADA (809s Louise Creek), ATCO Telecom Equipment |
replace existing battery charger |
1.33 Days
Continuous |
|
| 25-Feb-26 14:00 |
12-Mar-26 14:00 |
ALTALINK |
Outage |
202L (178s Cynthia - 202AL tap), 178s 202X (178s Cynthia) |
installing a new deadend and air break (202L336B) |
14.96 Days
Continuous |
|
| 26-Feb-26 07:00 |
06-Mar-26 18:00 |
ATCO, ALTALINK |
IO |
807AL (402s Scotford Expansion One - 807L tap) |
isolate line for Altalink scope: replace 807L structures 67B-71 and reconductor 67A-72. |
8.46 Days
Continuous |
|
| 26-Feb-26 07:00 |
06-Mar-26 18:00 |
ALTALINK, ATCO |
Outage |
807L (410s Josephburg - 807AL tap), 807L (233s Beamer - 807AL tap), 807AL (402s Scotford Expansion One - 807L tap), 233s 807X (233s Beamer) |
replace 807L structures 67B-71 and reconductor 67A-72 |
8.46 Days
Continuous |
|
| 26-Feb-26 07:30 |
26-Feb-26 17:30 |
ALTALINK |
RB |
924L (102s Langdon - 356s Milo) |
arctic arrow crew will require a reclosure block on 924L to complete geo-tech near 924L Span 96-97 |
10 Hours
Daily |
|
| 26-Feb-26 08:00 |
26-Feb-26 17:00 |
ALTALINK |
TE |
199s RTU/SCADA (199s East Airdrie), AltaLink Telecom Equipment |
firewall upgrades and firmware upgrades at 199s |
9 Hours
Daily |
|
| 26-Feb-26 08:00 |
26-Feb-26 16:00 |
ENMAX |
Outage |
15.62L (SS-15 - SS-16), 15.2TR (SS-15), 15B69-15.62 (SS-15), SW64 (SS-15), 15MD69-15.2TR (SS-15) |
replace centre phase braid strap - 15MD69-15.2TR. I&R 15B69-15.62L recloser not working |
8 Hours
Continuous |
|
| 26-Feb-26 08:00 |
27-Feb-26 16:00 |
ALTALINK |
TE |
58s RTU/SCADA (58s Edson) |
split VLAN |
1.33 Days
Daily |
|
| 26-Feb-26 09:00 |
26-Feb-26 18:00 |
ALTALINK, DOW |
Outage |
862L (166s Dow Chemical Fort Saskatchewan - 258s Dow Hydrocarbons), 166s 862N (166s Dow Chemical Fort Saskatchewan) |
arctic arrow requires a GOI on 862L for a planned high load move between structures 26-27, see also 706L record |
9 Hours
Daily |
|
| 26-Feb-26 09:00 |
26-Feb-26 18:00 |
ALTALINK |
Outage |
706L (54s Fort Saskatchewan - 706AL tap), 54s 706N (54s Fort Saskatchewan) |
arctic arrow requires a GOI on 706L for a planned high load move between structures 34-35, see also 862L record |
9 Hours
Daily |
|
| 26-Feb-26 09:00 |
26-Feb-26 16:00 |
ATCO |
TE |
2009s Protection & Control (2009s Willow Lake) |
PRC-005 relay testing on 21A/ 7L155, 21B/ 7L155 |
7 Hours
Continuous |
|
| 26-Feb-26 09:00 |
26-Feb-26 17:00 |
ALTALINK |
TE |
331s Protection & Control (331s Ponoka) |
standard relay maintenance |
8 Hours
Daily |
|
| 26-Feb-26 10:00 |
27-Feb-26 17:30 |
ATCO |
Outage |
770s 703T (770s Three Hills), 770s 703 (770s Three Hills) |
PRC-005 - trip coil testing - breaker 703, 87T/703T, 50-51-51N/703T |
31.5 Hours
Continuous |
|
| 26-Feb-26 12:00 |
02-Mar-26 12:00 |
ATCO |
Outage |
7L121 (917s Horse River - 7LA121 tap), 917s 705 (917s Horse River) |
changing structure 99, 100, 101 due to L-G violations |
4 Days
Continuous |
|
| 26-Feb-26 12:00 |
26-Feb-26 17:00 |
ALTALINK |
TE |
120s RTU/SCADA (120s Picture Butte) |
RTU outage |
5 Hours
Continuous |
|
| 27-Feb-26 08:00 |
27-Feb-26 17:00 |
ATCO |
RB |
7L48 (787s High Prairie - 7L48 tap), 7L48 (794s Valleyview - 7LA48 tap) |
connect mobile substation 835S to 7LA48 |
9 Hours
Continuous |
|
| 27-Feb-26 08:00 |
28-Feb-26 16:00 |
ALTALINK |
TE |
207s RTU/SCADA (207s Pinedale) |
split VLAN |
1.33 Days
Daily |
|
| 27-Feb-26 08:00 |
27-Feb-26 16:00 |
ENMAX |
Outage |
35.1TR (SS-35), 35B138-81 (SS-35), 35B138-82 (SS-35), 35MD138-84 (SS-35), 35MD138-86 (SS-35) |
HV breaker maintenance 35B138-81 |
8 Hours
Continuous |
|
| 01-Mar-26 07:00 |
05-Mar-26 17:30 |
ALTALINK |
RB |
942L (71s Lamoureux - 681s Bannerman) |
942L RB to string underneath the existing 942L on 807L |
4.44 Days
Continuous |
|
| 01-Mar-26 07:00 |
05-Mar-26 17:30 |
ALTALINK |
RB |
1061L (12s Heartland - 681s Bannerman) |
1061L RB to string underneath the existing 1061L on 807L |
4.44 Days
Continuous |
|
| 01-Mar-26 07:30 |
05-Mar-26 17:00 |
ALTALINK |
RB |
708AL (388s Riverside - 708L tap), 708L (233s Beamer - 708AL tap), 708L (71s Lamoureux - 708AL tap) |
708L RB to modify 807L and install new conductor at structures 72-67A |
4.4 Days
Continuous |
|
| 02-Mar-26 07:00 |
03-Mar-26 17:00 |
EPCOR |
Outage |
EP 511s Victoria T1 (EP 511s Victoria), EP 511s V721 (EP 511s Victoria), EP 511s V722 (EP 511s Victoria) |
victoria: TX1 zone, relay maintenance and scada rtu upgrade |
1.42 Days
Continuous |
|
| 02-Mar-26 07:00 |
03-Mar-26 17:00 |
EPCOR |
Outage |
1044L (EP 805s Jasper - 816s Petrolia), EP 805s J2403 (EP 805s Jasper), EP 805s J2404 (EP 805s Jasper), 816s P2405 (816s Petrolia), 816s P2406 (816s Petrolia) |
Petrolia: 1044L Relay Maintenance and PDS14 repair |
1.42 Days
Continuous |
|
| 02-Mar-26 07:00 |
06-Mar-26 17:00 |
EPCOR |
Outage |
557s T2 (557s Castle Downs) |
Castle Downs: tx2 surge arrestor lcr |
4.42 Days
Continuous |
|
| 02-Mar-26 07:00 |
12-Mar-26 16:00 |
ALTALINK |
TE |
275s RTU/SCADA (275s Jenner) |
update RTU to modify alarms for 944L line protection |
10.33 Days
Continuous |
|
| 02-Mar-26 07:00 |
12-Mar-26 16:00 |
ALTALINK |
TE |
132s RTU/SCADA (132s Ware Junction) |
visibility outage |
10.33 Days
Continuous |
|
| 02-Mar-26 07:00 |
06-Mar-26 17:00 |
EPCOR |
Outage |
987s GT2 (987s Clover Bar) |
Cloverbar |
4.42 Days
Continuous |
|
| 02-Mar-26 07:00 |
04-Mar-26 17:00 |
EPCOR |
Outage |
987s CGB2 (987s Clover Bar), 987s CC13 (987s Clover Bar), 987s CCP7213 (987s Clover Bar), 987s CK725 (987s Clover Bar), 987s 72kV Bus 3 (987s Clover Bar) |
Cloverbar: 72kV bus 3 outage |
2.42 Days
Continuous |
|
| 02-Mar-26 07:00 |
05-Mar-26 17:00 |
ALTALINK |
TE |
87s RTU/SCADA (87s Gaetz) |
87s Gaetz RTU config update |
3.42 Days
Daily |
|
| 02-Mar-26 07:00 |
06-Mar-26 17:00 |
EPCOR |
Outage |
T4 (Rossdale), R724 (Rossdale), RR729 (Rossdale) |
Rossdale: TX4 Zone, Civil/Grounding Rework |
4.42 Days
Continuous |
|
| 02-Mar-26 07:30 |
03-Mar-26 17:00 |
NWE |
Outage |
2302 (NWE Marias) |
install arrestors |
1.4 Days
Continuous |
AB-MATL |
| 02-Mar-26 08:00 |
13-Mar-26 16:00 |
ENMAX |
Outage |
32B138-32BT5 (SS-32) |
32BT5 P&C cut over |
11.29 Days
Continuous |
|
| 02-Mar-26 08:00 |
09-Mar-26 16:00 |
ATCO |
Outage |
7L48 (794s Valleyview - 7LA48 tap) |
Pole and cross arm replacement from T&T |
7.29 Days
Continuous |
|
| 02-Mar-26 08:00 |
05-Mar-26 07:30 |
ALTALINK |
Outage |
102s 552 (102s Langdon), 102s 252 (102s Langdon), 102s T4 (102s Langdon), 102s SVC (102s Langdon) |
SVC Control Upgrade Finish and Annual Fire System Maintenance. After maintenance live commissioning testing required. |
2.98 Days
Continuous |
|
| 02-Mar-26 08:00 |
02-Mar-26 17:00 |
ALTALINK |
RB |
1037L (237s Foothills - 266s SC1), 1037L (138s Windy Flats - 266s SC1) |
south crew will be doing component replacement on 1037L (str 280-342) live line
|
9 Hours
Continuous |
|
| 02-Mar-26 08:00 |
07-Mar-26 17:00 |
ALTALINK |
RB |
1038L (138s Windy Flats - 266s SC1), 1038L (237s Foothills - 266s SC1) |
south crew will be doing component replacement |
5.38 Days
Continuous |
|
| 02-Mar-26 08:00 |
06-Mar-26 17:00 |
ALTALINK |
RB |
443L (55s Olds - 214s Innisfail) |
south crew will be doing structure replacements |
4.38 Days
Continuous |
|
| 02-Mar-26 08:00 |
05-Mar-26 16:00 |
ALTALINK |
Outage |
263s C1 (263s Strachan) |
Replace CT's |
3.33 Days
Continuous |
|
| 02-Mar-26 08:00 |
05-Mar-26 16:00 |
ALTALINK |
TE |
899s RTU/SCADA (899s Edgerton) |
supervisory outage required during replacement of 749N protections |
3.33 Days
Continuous |
|
| 02-Mar-26 08:00 |
05-Mar-26 16:00 |
ALTALINK |
TE |
272s RTU/SCADA (272s Springbank), AltaLink Telecom Equipment |
1 firewall (scada) 1 mpls node 1 mpls raw socket |
3.33 Days
Continuous |
|
| 02-Mar-26 08:00 |
02-Mar-26 20:00 |
SUNCOR |
IO |
Suncor RTU/SCADA (Suncor) |
Complete UPS PM on 41UPS-23 / 41RA-7947- 450721924 feeding the backup SDC and Main SDC Servers.
This should not result in any outage or visibility loss but there is an increased risk due to no UPS backup during the PM.
Backup servers are still available. |
12 Hours
Continuous |
|
| 02-Mar-26 08:00 |
03-Mar-26 16:00 |
ALTALINK |
TE |
184s RTU/SCADA (184s Petro-Canada Edmonton), AltaLink Telecom Equipment |
upgrade MPLS and firewall |
1.33 Days
Continuous |
|
| 02-Mar-26 08:00 |
03-Mar-26 16:00 |
ATCO |
RB |
7L228 (845s Big Mountain - 7L20 tap) |
high load move on str 635 |
1.33 Days
Continuous |
|
| 02-Mar-26 08:00 |
03-Mar-26 16:00 |
ENMAX |
TE |
Protection & Control (SS-41) |
relay protection test |
1.33 Days
Continuous |
|
| 02-Mar-26 08:00 |
13-Mar-26 16:00 |
ENMAX |
Outage |
8.5TR (SS-8) |
8.5TR - repair leak on piping between main tank and radiators. Tap Changer Inspection. Reversing Switch Check |
11.29 Days
Continuous |
|
| 02-Mar-26 08:00 |
06-Mar-26 16:00 |
ALTALINK |
TE |
102s RTU/SCADA (102s Langdon) |
updating RTU configuration for T4 GMD metering and alarms. |
4.33 Days
Continuous |
|
| 02-Mar-26 09:00 |
16-Mar-26 12:00 |
ATCO |
Outage |
882s 701T (882s Triangle) |
Cutover and commission new transformer protection and SCADA station controller
Mobile substation 935S feeding 25kV load |
14.08 Days
Continuous |
|
| 02-Mar-26 09:00 |
12-Mar-26 17:00 |
Lethbridge |
Outage |
146s 1 (146s Macdonald), 813L (146s MacDonald - 241s Uplands) |
replacing 146s1 disconnect switch and 146s PTL1-CVT |
10.29 Days
Continuous |
|
| 02-Mar-26 09:00 |
16-Mar-26 12:00 |
ATCO |
TE |
882s Protection & Control (882s Triangle) |
demo existing protection and install/commission new protection on 701T |
14.08 Days
Continuous |
|
| 02-Mar-26 09:00 |
02-Mar-26 09:10 |
CMH |
TE |
MHS-5 RTU/SCADA (MHS-5 North East Crescent Heights) |
Cutting over one of the fiber strands connected to the substation's network router, to move it to CMH's Power Plant. This will result in a momentary loss of visibility on all devices in the substation. |
10 Mins
Continuous |
|
| 02-Mar-26 10:00 |
11-Mar-26 18:00 |
ATCO |
RB |
7L08 (830s Carmon - 834s Wesley Creek) |
maintenance program |
9.29 Days
Continuous |
|
| 02-Mar-26 10:00 |
04-Mar-26 16:00 |
ALTALINK |
TE |
17s Protection & Control (17s Benalto) |
CIP007 maintenance on protections |
2.25 Days
Continuous |
|
| 02-Mar-26 11:00 |
02-Mar-26 17:00 |
ALTALINK |
TE |
38s Protection & Control (38s East Edmonton) |
PRC maintenance |
6 Hours
Continuous |
|
| 02-Mar-26 12:00 |
05-Mar-26 16:00 |
ATCO |
TE |
898s Protection & Control (898s Heart Lake) |
PRC-005 relay testing, relay software vulnerability upgrades |
3.17 Days
Continuous |
|
| 02-Mar-26 13:00 |
05-Mar-26 16:00 |
ALTALINK |
Outage |
899s 749N (899s Edgerton) |
replace "A" protections - A21/L8 LZ921 |
3.13 Days
Continuous |
|
| 02-Mar-26 13:00 |
06-Mar-26 17:00 |
ALTALINK |
Outage |
749L (899s Edgerton - 7LB749 tap) |
749L Line Maintenance |
4.17 Days
Continuous |
|
| 02-Mar-26 13:00 |
03-Mar-26 16:00 |
ALTALINK |
TE |
275s RTU/SCADA (275s Jenner) |
trouble shooting required to solve issues with pass-through connection to the DDR |
27 Hours
Continuous |
|
| 03-Mar-26 07:00 |
03-Mar-26 18:00 |
ATCO |
Outage |
914s 701T (914s Bindloss), 914s 701 (914s Bindloss) |
outage for Keystone to perform maintenance on their equipment |
11 Hours
Continuous |
|
| 03-Mar-26 07:00 |
09-Mar-26 17:00 |
ALTALINK |
RB |
951L (132s Ware Junction - 275s Jenner) |
connection of 944L with 944AL1 for new 1080s substation |
6.38 Days
Continuous |
|
| 03-Mar-26 08:00 |
09-Mar-26 17:00 |
ALTALINK |
Outage |
132s 51 (132s Ware Junction), 132s 47 (132s Ware Junction), 275s 5 (275s Jenner), 275s 2 (275s Jenner), 944L (132s Ware Junction - 275s Jenner) |
Replace line relays at 132s Ware Junction, replace relay comm cards and update settings on protections at 275s Jenner,
implement third 944AL terminal. New 1080s Raptor line protection relays. End to end testing new 1080s Raptor and 944AL tap
addition. Close Open Point 'A'
|
6.33 Days
Continuous |
|
| 03-Mar-26 08:00 |
05-Mar-26 17:00 |
ALTALINK |
Outage |
1037L (138s Windy Flats - 266s SC1), 1037L (237s Foothills - 266s SC1) |
South Crew will be doing component replacement on 1037L (STR 280-342)See also 1038L RB Required due to
proximity.
|
2.38 Days
Continuous |
|
| 03-Mar-26 08:00 |
03-Mar-26 17:00 |
ALTALINK |
TE |
297s Protection & Control (297s Rimbey) |
setting updates to T2 A Protection |
9 Hours
Continuous |
|
| 03-Mar-26 08:00 |
03-Mar-26 17:00 |
ALTALINK |
TE |
297s RTU/SCADA (297s Rimbey) |
HMI change for protection communication, test communication |
9 Hours
Continuous |
|
| 03-Mar-26 08:00 |
03-Mar-26 16:00 |
ALTALINK |
Outage |
87s 152 (87s Gaetz) |
87s152 outage to trip test from new c60 relays. Trip new breakers from 152 BF protection. |
8 Hours
Daily |
|
| 03-Mar-26 08:00 |
03-Mar-26 16:00 |
ALTALINK |
TE |
74s Protection & Control (74s Janet) |
PRC maintenance |
8 Hours
Continuous |
|
| 03-Mar-26 08:00 |
04-Mar-26 16:00 |
ALTALINK |
TE |
74s Protection & Control (74s Janet) |
PRC maintenance |
1.33 Days
Daily |
|
| 03-Mar-26 08:00 |
05-Mar-26 16:00 |
ENMAX |
Outage |
31.1TR (SS-31) |
relay protection test |
2.33 Days
Continuous |
|
| 03-Mar-26 08:00 |
03-Mar-26 16:00 |
ENMAX |
TE |
Protection & Control (SS-23) |
SSTR23-1, SSTR23-2 outage, repair ATS-23 |
8 Hours
Continuous |
|
| 03-Mar-26 08:00 |
03-Mar-26 16:00 |
ALTALINK |
IO |
AltaLink Telecom Equipment |
perform quantar radio maintenance |
8 Hours
Continuous |
|
| 03-Mar-26 08:30 |
03-Mar-26 16:00 |
ALTALINK |
TE |
184s RTU/SCADA (184s Petro-Canada Edmonton) |
SCADA outage to troubleshoot customer alarms |
7.5 Hours
Continuous |
|
| 03-Mar-26 08:30 |
03-Mar-26 22:30 |
ALTALINK |
Outage |
508s T1 (508s Lakesend), 508s 696 (508s Lakesend) |
replace 3x TX Bushings that have high oil levels and cracked site glass |
14 Hours
Continuous |
|
| 03-Mar-26 09:00 |
06-Mar-26 12:00 |
BCH |
Outage |
T7 (BCH Natal) |
ETM install |
3.13 Days
Continuous |
AB-BC |
| 03-Mar-26 12:00 |
03-Mar-26 17:00 |
ATCO |
TE |
ATCO Telecom Equipment, 844s RTU/SCADA (844s AEC Mill), 732s RTU/SCADA (732s Mitsue) |
Mitsue_S-Telecom-Upgrading the A SARS AND NET 11 SARS at Mitsue, to V21, then V22. 2 SEPARATE OUTAGES 1 hr each:
OUTAGE 1:9L15A , 9L40A, HOUSE MOUNTAIN SCADA, 9L913 B, 7L30 21B, 7L31 21B, 9L56A. 844S&732S SCADA
OUTAGE 2:9L56B, 9L40B,9L913A |
5 Hours
Continuous |
|
| 03-Mar-26 23:30 |
04-Mar-26 06:30 |
ALTALINK |
Outage |
62s T2 (62s Brazeau Plant), 62s 2 (62s Brazeau Plant) |
maintenance |
7 Hours
Continuous |
|
| 04-Mar-26 07:00 |
06-Mar-26 17:00 |
EPCOR |
Outage |
816s T1 (816s Petrolia), 816s P2402 (816s Petrolia), 816s P2401 (816s Petrolia), 816s PAB1 (816s Petrolia) |
petrolia: TX1 relay maintenance |
2.42 Days
Continuous |
|
| 04-Mar-26 07:00 |
04-Mar-26 17:00 |
ALTALINK |
TE |
17s Protection & Control (17s Benalto) |
updates setting on A77/1144AIS protection relay to split comm fail alarms |
10 Hours
Continuous |
|
| 04-Mar-26 08:00 |
04-Mar-26 18:00 |
Syncrude |
TE |
Syncrude ICCP Outage |
SCADA - Server Update Whole Syncrude Visibility Loss |
10 Hours
Daily |
|
| 04-Mar-26 08:00 |
04-Mar-26 16:00 |
ALTALINK |
TE |
17s RTU/SCADA (17s Benalto) |
RTU updates for alarm splitting and firmware upgrade |
8 Hours
Continuous |
|
| 04-Mar-26 08:00 |
04-Mar-26 16:00 |
ALTALINK |
Outage |
87s 552 (87s Gaetz) |
87s552 outage to trip test from new c60 relays, trip new breakers from 552 BF protection |
8 Hours
Daily |
|
| 04-Mar-26 08:00 |
04-Mar-26 16:00 |
ALTALINK |
TE |
349s RTU/SCADA (349s Stavely), AltaLink Telecom Equipment |
mds radio maintenance at 9243R which will affect the supervisory circuit to 349s Stavely for the duration of the outage,928s supervisory is no longer on this radio. |
8 Hours
Continuous |
|
| 04-Mar-26 08:00 |
05-Mar-26 16:00 |
ALTALINK |
TE |
AltaLink Telecom Equipment, 185s RTU/SCADA (185s Bretville), 286s RTU/SCADA (286s Yasa) |
firewall and MPLS upgrade, various TPR will be reroute |
1.33 Days
Continuous |
|
| 04-Mar-26 08:00 |
04-Mar-26 16:00 |
ALTALINK |
TE |
385s RTU/SCADA (385s Spring Coulee) |
Techs to reboot LAN-ES3 (Hirschmann GRS1142). Current SUBLAN alarm in. If reboot does not fix issue, techs will replace device with spare device. RTU outage will only effect alarms and not controls. 2 qualified switchman will be on site regardless. |
8 Hours
Continuous |
|
| 04-Mar-26 08:00 |
05-Mar-26 16:00 |
ENMAX |
TE |
Protection & Control (SS-41) |
41 sub BMR BT3 protection outage |
1.33 Days
Continuous |
|
| 04-Mar-26 08:00 |
06-Mar-26 17:00 |
ALTALINK |
RB |
514BL (322s Cowley Ridge Windplant - 514L tap), 514L (396s Pincher Creek - 514BL tap), 514L (513s Lundbreck - 514BL tap) |
prep for line maintenance on 514L from STR 48-453, proximity |
2.38 Days
Continuous |
|
| 04-Mar-26 08:00 |
04-Mar-26 16:00 |
ALTALINK |
IO |
385s T3 (385s Spring Coulee) |
techs are required to test tap changer function due to high voltage tripping off DG, transformer remains in service |
8 Hours
Continuous |
|
| 04-Mar-26 08:30 |
05-Mar-26 16:00 |
ALTALINK |
TE |
320p RTU/SCADA (320P Keephills) |
supervisory outage required - camlin rep to assist with SCADA deficiencies at RTU and camlin unit |
31.5 Hours
Continuous |
|
| 04-Mar-26 23:30 |
05-Mar-26 02:30 |
ALTALINK |
Outage |
62s T1 (62s Brazeau Plant), 62s 1 (62s Brazeau Plant) |
maintenance |
3 Hours
Continuous |
|
| 05-Mar-26 07:00 |
08-Mar-26 16:00 |
ATCO |
Outage |
732s 9L913D1 (732s Mitsue) |
emergency, Changing white tag poles from Test & Treat ( Str 16,69 and 503 ) |
3.33 Days
Continuous |
|
| 05-Mar-26 07:00 |
08-Mar-26 16:30 |
ALTALINK, ATCO |
Outage |
69s 913N (69s North Barrhead), 913L (69s North Barrhead - 732s Mitsue) |
Urgent outage to replace poles |
3.35 Days
Continuous |
|
| 05-Mar-26 08:00 |
05-Mar-26 16:00 |
ALTALINK |
Outage |
87s 952 (87s Gaetz) |
87s952 outage to trip test from new c60 relays. Trip new breakers from 952 BF protection. |
8 Hours
Daily |
|
| 05-Mar-26 08:00 |
06-Mar-26 16:00 |
ALTALINK |
Trans Test |
102s T4 (102s Langdon), 102s SVC (102s Langdon) |
After maintenance live commissioning testing |
1.33 Days
Continuous |
|
| 05-Mar-26 08:30 |
05-Mar-26 16:00 |
ALTALINK |
TE |
180s RTU/SCADA (180s Cope Creek) |
upgrade firmware on RTU and trouble shoot alarms |
7.5 Hours
Continuous |
|
| 05-Mar-26 09:00 |
05-Mar-26 16:00 |
ALTALINK |
Outage |
523s Protection & Control (523s Bullshead) |
PRC maintenance on C1 cap bank protections listed above |
7 Hours
Continuous |
|
| 05-Mar-26 10:00 |
05-Mar-26 12:00 |
ALTALINK |
TE |
AltaLink Telecom Equipment, 250p RTU/SCADA (250P Bighorn Plant), 304s RTU/SCADA (304s Shell Limestone), 21s RTU/SCADA (21s Marion), 68s RTU/SCADA (68s Willesden Green), 115s RTU/SCADA (115s Mount Allan), 165s RTU/SCADA (165s Gainford), 180s RTU/SCADA (180s Cope Creek), 271s RTU/SCADA (271s Shell Jumping Pound), 406s RTU/SCADA (406s Fickle Lake), 411s RTU/SCADA (411s Obed), 512s RTU/SCADA (512s Hartell), 515s RTU/SCADA (515s Fedpipe Judy Creek), 527s RTU/SCADA (527s Coal Valley), 638s RTU/SCADA (638s Esso Judy Creek), 887s RTU/SCADA (887s Carson Creek), 975s RTU/SCADA (975s Dalehurst), 996s RTU/SCADA (996s Imperial Oil Carson Lake) |
update configuration
|
2 Hours
Continuous |
|
| 05-Mar-26 12:00 |
05-Mar-26 17:00 |
ALTALINK |
TE |
120s RTU/SCADA (120s Picture Butte) |
RTU outage |
5 Hours
Continuous |
|
| 06-Mar-26 07:30 |
07-Mar-26 17:30 |
ALTALINK |
RB |
1072L (103s Goose Lake - 205s Castle Rock Ridge) |
south crew will be doing component replacement on 1072L15 |
1.42 Days
Daily |
|
| 06-Mar-26 07:30 |
08-Mar-26 17:30 |
ALTALINK |
RB |
994L (103s Goose Lake - 312s Fidler) |
south crew will be doing component replacement on 1072L15 |
2.38 Days
Daily |
|
| 06-Mar-26 07:30 |
08-Mar-26 17:30 |
ALTALINK |
RB |
1071L (205s Castle Rock Ridge - 312s Fidler) |
south crew will be doing component replacement on 1072L15 |
2.38 Days
Daily |
|
| 06-Mar-26 08:00 |
07-Mar-26 17:00 |
ALTALINK |
RB |
1037L (138s Windy Flats - 266s SC1), 1037L (237s Foothills - 266s SC1) |
south crew will be doing component replacement on 1037L (STR 280-342) live line |
1.38 Days
Continuous |
|
| 06-Mar-26 08:00 |
06-Mar-26 16:00 |
ALTALINK |
Outage |
87s 252 (87s Gaetz) |
87s252 outage to trip test from new c60 relays, trip new breakers from 252 BF protection |
8 Hours
Daily |
|
| 06-Mar-26 08:00 |
06-Mar-26 16:00 |
ENMAX |
TE |
Protection & Control (SS-2) |
2 sub 86 BF-D81 protection outage. relays, lockout testing |
8 Hours
Continuous |
|
| 06-Mar-26 16:00 |
10-Mar-26 13:00 |
BCH |
Outage |
T8 (BCH Natal) |
ETM install |
3.83 Days
Continuous |
AB-BC |
| 06-Mar-26 17:00 |
13-Nov-26 17:00 |
EPCOR |
Outage |
T1 (Woodcroft) |
woodcroft: TX1 LCR civil |
252 Days
Continuous |
|