![]() 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 |
27-Feb-26 17:00 |
EPCOR |
TE |
Protection & Control (Woodcroft) |
Woodcroft: protection blocking for merging unit and protection upgrade. |
333.46 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 |
|
| 25-Aug-25 08:00 |
24-Feb-26 16:00 |
ENMAX |
Outage |
32.1TR (SS-32) |
slip over CT and new power cables installation and P&C works |
183.38 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 |
|
| 26-Jan-26 07:01 |
19-Feb-26 17:00 |
EPCOR |
Outage |
T3 (Rossdale), R723 (Rossdale), R724 (Rossdale), RAB3 (Rossdale) |
Rossdale: TX3 Zone, P&C Commissioning and Initial Energization |
24.42 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 |
27-Feb-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 |
21.44 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 08:00 |
19-Feb-26 18:00 |
ATCO |
RB |
7L81 (791s Rainbow Lake - BCH Harvest Energy FNC Tap) |
BC Hydro tree trimming |
10.42 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 |
|
| 14-Feb-26 08:00 |
26-Feb-26 16:00 |
Syncrude |
Outage |
18215 (Syncrude Mildred Lake), 1834 (Syncrude Mildred Lake), 1835 (Syncrude Mildred Lake) |
perform 6-Year PM on bus 18 in Plant 31 at Mildred Lake |
12.33 Days
Continuous |
|
| 15-Feb-26 07:00 |
25-Feb-26 17:30 |
ALTALINK |
RB |
759L (87s Gaetz - 276s Prentiss) |
stringing new lines under construction |
10.44 Days
Continuous |
|
| 16-Feb-26 07:00 |
19-Feb-26 17:00 |
ALTALINK |
TE |
87s RTU/SCADA (87s Gaetz) |
SCADA change for CETO: adding new status, alarms, controls for new breaker 1352 & 1752 |
3.42 Days
Daily |
|
| 16-Feb-26 07:00 |
21-Feb-26 19:00 |
ATCO |
RB |
9L16 (755s Cordel - 972s Tinchebray) |
a hold-off is required to facilitate the erection of 3 new towers and stringing for the CETO project near Tynchebray Sub |
5.5 Days
Daily |
|
| 16-Feb-26 08:00 |
22-Feb-26 20:00 |
SUNCOR |
TE |
29EDD-94 Protection & Control (29EDD-94 Voyageur) |
updates |
6.5 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 06:30 |
19-Feb-26 17:30 |
ALTALINK |
RB |
944L (132s Ware Junction - 275s Jenner) |
dress and install the 944AL1 structure within 15m of 944L |
2.46 Days
Daily |
|
| 17-Feb-26 06:30 |
19-Feb-26 17:30 |
ALTALINK |
RB |
951L (132s Ware Junction - 275s Jenner) |
required due to proximity |
2.46 Days
Daily |
|
| 17-Feb-26 07:00 |
20-Feb-26 17:00 |
EPCOR |
Outage |
72CH9 (987s Clover Bar - EP Hardisty), T3 (EP Hardisty), H723 (EP Hardisty), H724 (EP Hardisty), HAB3 (EP Hardisty) |
relay maintenance on TX3 |
3.42 Days
Continuous |
|
| 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 |
21-Feb-26 17:30 |
ALTALINK |
RB |
443L (55s Olds - 214s Innisfail) |
structure replacements from 443L63 – 443L137 |
4.42 Days
Daily |
|
| 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 08:00 |
24-Feb-26 16:00 |
BCH |
Outage |
T3 (BCH Natal) |
install ETM BC Hydro maintenance does not affect Alberta ATC |
7.33 Days
Continuous |
AB-BC |
| 17-Feb-26 08:00 |
19-Feb-26 17:00 |
ALTALINK |
TE |
AltaLink Telecom Equipment, 108s RTU/SCADA (108s Amelia) |
firewall upgrade and LAN switch upgrade |
2.38 Days
Daily |
|
| 17-Feb-26 08:00 |
19-Feb-26 17:00 |
ALTALINK |
TE |
132s RTU/SCADA (132s Ware Junction), AltaLink Telecom Equipment |
firewall upgrades |
2.38 Days
Daily |
|
| 17-Feb-26 08:00 |
20-Feb-26 16:00 |
ENMAX |
Outage |
832L (SS-10 - SS-12), 12.1TR (SS-12), 10B138-832 (SS-10), 12B138-832L (SS-12), 12MD138-12.1TR (SS-12) |
maintenance on SW84, SW85, SW86, MD-12.1TR and reversing switch check 12.1-TC |
3.33 Days
Continuous |
|
| 17-Feb-26 08:00 |
19-Feb-26 17:00 |
ALTALINK |
TE |
38s Protection & Control (38s East Edmonton) |
standard relay maintenance |
2.38 Days
Daily |
|
| 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 09:00 |
20-Feb-26 17:30 |
ATCO |
TE |
2075s Protection & Control (2075s Newell) |
PRC-005 relay testing |
3.35 Days
Continuous |
|
| 17-Feb-26 09:00 |
20-Feb-26 17:30 |
ATCO |
TE |
2029s Protection & Control (2029s Heathfield) |
PRC-005 relay testing |
3.35 Days
Continuous |
|
| 17-Feb-26 10:00 |
25-Feb-26 18:00 |
ATCO |
RB |
7L08 (830s Carmon - 834s Wesley Creek) |
maintenance program for 32 pole changes, 21 crossarm changes and other structure deficiencies |
8.33 Days
Continuous |
|
| 17-Feb-26 10:00 |
20-Feb-26 15:00 |
ATCO |
TE |
749s Flyingshot Lake RTU/SCADA |
RTU updates |
3.21 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 11:00 |
19-Feb-26 17:00 |
ALTALINK |
TE |
428s Protection & Control (428s Namaka) |
PRC maintenance |
2.25 Days
Daily |
|
| 17-Feb-26 11:30 |
19-Feb-26 17:00 |
ALTALINK |
TE |
681s Protection & Control (681s Bannerman) |
card replacement |
2.23 Days
Daily |
|
| 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 |
05-Mar-26 17:30 |
ALTALINK |
RB |
202L (178s Cynthia - 202AL tap), 202L (61s Lodgepole - 202AL tap) |
safety requirement; create/close 202L open point 'B' |
16 Days
Continuous |
|
| 18-Feb-26 08:00 |
19-Feb-26 17:00 |
ALTALINK |
TE |
28s Protection & Control (28s West Brooks) |
PRC maint on the following redundant line protections:853L A21/L6, 853L B21/79/L6 one at a time.Also be performing meter reseals on: 28S 2057L, 28S 2056L, 28S 2255L |
1.38 Days
Daily |
|
| 18-Feb-26 09:00 |
20-Feb-26 16:00 |
ATCO |
TE |
784s Protection & Control (784s Donnelly), 784s RTU/SCADA (784s Donnelly) |
25 kV feeder relay and station controller update to repair broken enable/disable reclosing |
2.29 Days
Continuous |
|
| 19-Feb-26 07:30 |
20-Feb-26 17:30 |
ALTALINK |
RB |
199L (268s Whitecourt - 199AL tap), 199L (347s AML Fox Creek - 199AL tap) |
anchor installation near 199L structure 175 |
1.42 Days
Daily |
|
| 19-Feb-26 08:00 |
22-Feb-26 16:00 |
ATCO |
Outage |
9L40 (732s Mitsue - 809s Louise Creek) |
changing rotten poles from our inspection |
3.33 Days
Continuous |
|
| 19-Feb-26 08:00 |
19-Feb-26 16:00 |
ALTALINK |
TE |
AML 793s RTU/SCADA (AML 793s Horse Creek), AltaLink Telecom Equipment |
split the existing SCADA VLAN from 1 to 1 and 2 |
8 Hours
Daily |
|
| 19-Feb-26 08:00 |
20-Feb-26 16:00 |
ENMAX |
IO |
833L (SS-2 - SS-12) |
hw sw maintenance SW81, SW82, SW83, MD-12.2TR, reversing Switch Check - 12.2-TC |
1.33 Days
Continuous |
|
| 19-Feb-26 08:00 |
19-Feb-26 16:00 |
ENMAX |
TE |
Protection & Control (SS-37) |
37 sub 138kV Z31 87 (bus differential) and 86 (lockout relay) protection scheme outage, relay protection test - 37RLY138 - 86 lockouts 37RLY138-37.Z31 |
8 Hours
Continuous |
|
| 19-Feb-26 08:00 |
19-Feb-26 16:00 |
ENMAX, ALTALINK |
TE |
771L (SS-47 - SS-162) |
47sub 771L A protection outage, troubleshoot channel asymmetry alarm |
8 Hours
Continuous |
|
| 19-Feb-26 08:00 |
19-Feb-26 23:00 |
ATCO, ALTALINK |
RB |
7L696 (508s Lakesend - 892s Ribstone Creek) |
AltaLink requested reclosing blocked due to emergency outage at 508S (1-00516679) |
15 Hours
Continuous |
|
| 19-Feb-26 09:00 |
19-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 |
9 Hours
Daily |
|
| 19-Feb-26 09:00 |
19-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 |
9 Hours
Daily |
|
| 19-Feb-26 09:00 |
19-Feb-26 16:00 |
ATCO |
TE |
2009s Protection & Control (2009s Willow Lake) |
PRC-005 relay testing on 50BF/706, 50BF/708 |
7 Hours
Continuous |
|
| 19-Feb-26 09:00 |
19-Feb-26 16:00 |
ATCO |
TE |
715s Protection & Control (715s Leming Lake) |
PRC-005 relay testing on 87TA/702T. |
7 Hours
Continuous |
|
| 19-Feb-26 09:00 |
19-Feb-26 16:00 |
ATCO |
TE |
751s RTU/SCADA (751s Hill) |
smp config update
|
7 Hours
Continuous |
|
| 19-Feb-26 09:00 |
19-Feb-26 10:00 |
PEL |
TE |
318s RTU/SCADA (318s Scoria) |
communication outage |
60 Mins
Continuous |
|
| 19-Feb-26 10:00 |
19-Feb-26 13:00 |
ALTALINK |
Outage |
508s T1 (508s Lakesend), 508s 696 (508s Lakesend) |
urgent repair of T1 bushing site glass and oil samples on bushings |
3 Hours
Daily |
|
| 19-Feb-26 12:00 |
20-Feb-26 17:00 |
ALTALINK |
Outage |
202L (178s Cynthia - 202AL tap), 178s 202X (178s Cynthia) |
create 202L open point 'B' |
29 Hours
Continuous |
|
| 19-Feb-26 12:00 |
19-Feb-26 17:00 |
ALTALINK |
TE |
120s RTU/SCADA (120s Picture Butte) |
rtu outage |
5 Hours
Continuous |
|
| 20-Feb-26 08:00 |
20-Feb-26 16:00 |
ENMAX |
TE |
Protection & Control (SS-7) |
relay protection test |
8 Hours
Continuous |
|
| 20-Feb-26 08:00 |
20-Feb-26 16:00 |
ALTALINK |
TE |
370s RTU/SCADA (370s North Lethbridge) |
split the existing SCADA VLAN |
8 Hours
Daily |
|
| 20-Feb-26 08:00 |
20-Feb-26 16:00 |
ENMAX |
Outage |
39.2TR (SS-39) |
tag 39.2TR secondary cables |
8 Hours
Continuous |
|
| 20-Feb-26 09:00 |
20-Feb-26 16:00 |
ATCO |
TE |
2009s Protection & Control (2009s Willow Lake) |
PRC-005 relay testing on 21A/7L36, 21B/7L36. |
7 Hours
Continuous |
|
| 20-Feb-26 09:00 |
20-Feb-26 16:00 |
ATCO |
TE |
715s Protection & Control (715s Leming Lake) |
PRC-005 relay testing |
7 Hours
Continuous |
|
| 20-Feb-26 17:01 |
05-Mar-26 14:00 |
ALTALINK |
Outage |
202L (178s Cynthia - 202AL tap), 178s 202X (178s Cynthia) |
installing a new deadend and air break (202L336B) |
12.87 Days
Continuous |
|
| 21-Feb-26 07:00 |
21-Feb-26 17:00 |
EPCOR |
TE |
RTU/SCADA (Meadowlark) |
firewall replacement on Meadowlark substation |
10 Hours
Continuous |
|
| 21-Feb-26 13:00 |
21-Feb-26 15:00 |
EPCOR |
TE |
APS# 172 Garneau - Meadowlark Reconfiguration Scheme |
Meadowlark MPLS repair |
2 Hours
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) |
Victoria: TX4 Zone, Relay Maintenance and SCADA RTU Upgrade |
4.42 Days
Continuous |
|
| 23-Feb-26 07:00 |
20-Mar-26 17:00 |
EPCOR |
Outage |
805s T3 (805s Jasper) |
bushing change |
25.38 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 |
25-Feb-26 16:00 |
ENMAX |
Outage |
40.81L (SS-40 - SS-41), 41.84L (SS-41 - SS-54), 41.1TR (SS-41), 41B138-41BT3 (SS-41), 41B138-40.81 (SS-41), 41B138-41.84 (SS-41), 40B138-40.81 (SS-40), 54B138-41.84 (SS-54) |
HV SW maintenance, reversing switch check |
2.33 Days
Continuous |
|
| 23-Feb-26 08:00 |
27-Nov-26 18:00 |
ENMAX |
Outage |
20.1TR (SS-20) |
20 SUB switchgear replacement. 1 sub transmission line cut over |
277.42 Days
Continuous |
|
| 23-Feb-26 08:00 |
25-Feb-26 17:00 |
ALTALINK |
TE |
254s RTU/SCADA (254s Coaldale) |
add T2 tap position sensor and tap position visibility |
2.38 Days
Daily |
|
| 23-Feb-26 08:00 |
25-Feb-26 16:00 |
ALTALINK |
TE |
AltaLink Telecom Equipment, 122s RTU/SCADA (122s Alberta Newsprint), 122s Protection & Control (122s Alberta Newsprint) |
firewall upgrades and TPR outages |
2.33 Days
Daily |
|
| 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 08:00 |
23-Feb-26 16:00 |
ALTALINK |
TE |
87s Protection & Control (87s Gaetz) |
L9 B protection needs to move locations in rack 28 |
8 Hours
Continuous |
|
| 23-Feb-26 08:00 |
23-Feb-26 16:00 |
ALTALINK |
TE |
338s RTU/SCADA (338s Cherhill) |
split VLAN |
8 Hours
Daily |
|
| 23-Feb-26 08:00 |
23-Feb-26 16:00 |
ENMAX |
Outage |
47B138-BT3 (SS-47) |
I&R BT3 Heater Fail |
8 Hours
Continuous |
|
| 23-Feb-26 08:00 |
23-Feb-26 16:00 |
ENMAX |
TE |
RTU/SCADA (SS-2) |
SDN upgrade |
8 Hours
Continuous |
|
| 23-Feb-26 09:00 |
23-Feb-26 16:00 |
ATCO |
TE |
2009s Protection & Control (2009s Willow Lake) |
PRC-005 relay testing |
7 Hours
Continuous |
|
| 23-Feb-26 10:00 |
24-Feb-26 16:00 |
ATCO |
Outage |
7L91 (715s Leming Lake - 826s Marguerite Lake) |
Install aerial nest platform pole and transfer osprey nest from 7L91-158 |
30 Hours
Continuous |
|
| 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 |
24-Feb-26 17:00 |
ALTALINK |
TE |
89s Protection & Control (89s Ellerslie) |
relay maintenance |
30 Hours
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 07:00 |
25-Feb-26 17:30 |
ATCO, ALTALINK |
RB |
807AL (402s Scotford Expansion One - 807L tap) |
disable reclosing for ALtaLink work |
1.44 Days
Continuous |
|
| 24-Feb-26 07:00 |
24-Feb-26 17:00 |
EPCOR |
Outage |
330p 1209 (330p Genesee) |
Genesee: 1209 breaker status indicator investigation |
10 Hours
Continuous |
|
| 24-Feb-26 07:00 |
25-Feb-26 17:30 |
ALTALINK, ATCO |
RB |
807L (410s Josephburg - 807AL tap), 807L (233s Beamer - 807AL tap), 807AL (402s Scotford Expansion One - 807L tap) |
crews will be working under and near 807L 67A-72 delivering poles and materials. |
1.44 Days
Daily |
|
| 24-Feb-26 07:00 |
24-Feb-26 17:00 |
ENMAX, ALTALINK |
RB |
21.80L (42s Sarcee - SS-21) |
spring transmission line washing near 1.80, 1.81L. |
10 Hours
Daily |
|
| 24-Feb-26 07:00 |
24-Feb-26 17:00 |
ENMAX, ALTALINK |
RB |
21.80L (42s Sarcee - SS-21) |
spring pothead washing near 1.80, 1.81L |
10 Hours
Daily |
|
| 24-Feb-26 08:00 |
24-Feb-26 17:00 |
ALTALINK |
TE |
244s Protection & Control (244s Bowmanton) |
PRC maint on the following redundant line prot. 892L A21/79/L15 |
9 Hours
Daily |
|
| 24-Feb-26 08:00 |
04-Mar-26 16:00 |
Syncrude |
Outage |
11 (Aurora), 12 (Aurora), 13 (Aurora), T3 (Aurora), UT1 (Aurora) |
zone 6, 6 year PM |
8.33 Days
Continuous |
|
| 24-Feb-26 08:00 |
25-Feb-26 16:00 |
ALTALINK |
TE |
122s RTU/SCADA (122s Alberta Newsprint) |
split VLAN |
1.33 Days
Daily |
|
| 24-Feb-26 08:00 |
25-Feb-26 16:00 |
ENMAX |
Outage |
39.1TR (SS-39) |
relay protection test |
1.33 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 |
|
| 24-Feb-26 08:00 |
24-Feb-26 16:00 |
ENMAX |
Outage |
27.1TR (SS-27) |
27B8-27.1TR trip free while racking out |
8 Hours
Continuous |
|
| 24-Feb-26 09:00 |
24-Feb-26 16:00 |
ATCO |
TE |
2009s Protection & Control (2009s Willow Lake) |
PRC-005 relay testing on 21A/ 7L182, 21B/ 7L182 |
7 Hours
Continuous |
|
| 25-Feb-26 07:00 |
25-Feb-26 18:00 |
ALTALINK |
Outage |
254s T2 (254s Coaldale), 254s 35 (254s Coaldale) |
add T2 tap position sensor and tap position visibility |
11 Hours
Daily |
|
| 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 |
25-Feb-26 17:00 |
ALTALINK |
TE |
178s RTU/SCADA (178s Cynthia) |
update RTU config for BMI project |
9 Hours
Daily |
|
| 25-Feb-26 08:00 |
25-Feb-26 17:30 |
ALTALINK |
Outage |
523s C1 (523s Bullshead) |
cap bank outage to perform PRC functional testing on the following prot's: A50/51/60/59/C1, B50/51/2760/59/C1 |
9.5 Hours
Daily |
|
| 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 |
25-Feb-26 17:00 |
ALTALINK |
TE |
AltaLink Telecom Equipment |
replace damaged RF cable connectors |
9 Hours
Daily |
|
| 25-Feb-26 08:30 |
25-Feb-26 17:00 |
ALTALINK |
TE |
62s RTU/SCADA (62s Brazeau Plant) |
RTU database updates, several ~15min supervisory outages required |
8.5 Hours
Daily |
|
| 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 09:00 |
25-Feb-26 16:00 |
ATCO |
TE |
2009s Protection & Control (2009s Willow Lake) |
PRC-005 relay testing |
7 Hours
Continuous |
|
| 25-Feb-26 10:00 |
25-Feb-26 17:30 |
ATCO |
Outage |
7L137 (768s Rowley - 770s Three Hills), 770s 702 (770s Three Hills), 768s 703 (768s Rowley) |
PRC-005 trip coil testing, breaker 702 @ 770S |
7.5 Hours
Continuous |
|
| 25-Feb-26 10:00 |
25-Feb-26 17:00 |
ALTALINK |
TE |
62s Protection & Control (62s Brazeau Plant) |
protection troubleshooting |
7 Hours
Daily |
|
| 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. loss of 199s visibility for ~ 1hrs. some TPR channels will be rerouted in 50ms, TPR 261 AISm77/85 PCESO2L will be OOS for 1hr. |
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) |
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) |
PRC-005 - TRIP COIL TESTING - BREAKER 703 @ 770S
RELAY MICROPROCESSOR BASED COMPLETE - 87T/703T @ 770S
RELAY MICROPROCESSOR BASED COMPLETE - 50-51-51N/703T @ 770S |
31.5 Hours
Continuous |
|
| 26-Feb-26 12:00 |
02-Mar-26 12:00 |
ATCO |
Outage |
7L121 (917s Horse River - 7LA121 tap) |
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 |
|