![]() 05-Oct-18 08:00 |
![]() 30-Aug-25 16:00 |
![]() EPCOR |
![]() IO |
![]() C2 (Rossdale) |
![]() forced outage |
![]() 2,521.33 Days
Continuous |
![]() |
| 24-Oct-18 01:13 |
30-May-27 16:00 |
EPCOR |
IO |
C1 (Rossdale) |
forced outage |
3,140.62 Days
Continuous |
|
| 27-Nov-23 08:00 |
01-Aug-25 16:00 |
ENMAX |
Outage |
32.2TR (SS-32) |
32 sub 32.2TR 8 kV bus switchgear demolition |
613.29 Days
Continuous |
|
| 26-Jul-24 10:00 |
31-Jul-26 16:00 |
ATCO |
Outage |
826s 504R (826s Marguerite Lake) |
emergency removal to replace failed 502R @834S |
735.25 Days
Continuous |
|
| 23-Aug-24 13:45 |
30-Jun-26 14:29 |
ALTALINK |
Outage |
157s C1 (157s Lac La Biche) |
forced outage |
676.03 Days
Continuous |
|
| 03-Jan-25 07:00 |
27-Jun-25 17:00 |
EPCOR |
TE |
805s Protection & Control (805s Jasper), 805s RTU/SCADA (805s Jasper) |
protection blocking for P&C maintenance at Jasper |
175.38 Days
Continuous |
|
| 24-Jan-25 00:00 |
31-Dec-25 16:00 |
ALTALINK |
Outage |
74s C3 (74s Janet) |
forced outage |
341.67 Days
Continuous |
|
| 10-Feb-25 00:00 |
23-Dec-25 23:00 |
ATCO, ALTALINK |
IO |
840s McNeill Station, 830L (562s Cypress - 840s McNeill Station), 840s 701T (840s McNeill Station), 840s 901T (840s McNeill Station) |
available for emergency use only |
316.96 Days
Continuous |
AB-SK |
| 11-Feb-25 10:00 |
23-Jul-25 16:00 |
ATCO |
TE |
940s Protection & Control (940s Beartrap) |
relay testing |
162.21 Days
Continuous |
|
| 11-Mar-25 00:00 |
31-Dec-25 16:00 |
ALTALINK |
Outage |
377s 473C (377s AML Hardisty) |
forced outage |
295.71 Days
Continuous |
|
| 18-Mar-25 14:00 |
17-Mar-26 17:30 |
ALTALINK |
Outage |
217s C1 (217s North Red Deer) |
cap. bank unavailable and cannot be energized due to Koncar CTs being present |
364.15 Days
Daily |
|
| 20-Mar-25 08:00 |
20-Mar-26 17:00 |
ALTALINK |
Outage |
263s C1 (263s Strachan) |
forced outage |
365.38 Days
Continuous |
|
| 20-Mar-25 08:00 |
20-Mar-26 17:00 |
ALTALINK |
Outage |
256s C1 (256s Harmattan) |
forced outage |
365.38 Days
Continuous |
|
| 31-Mar-25 07:00 |
03-Oct-25 17:00 |
EPCOR |
Outage |
987s T1 (987s Clover Bar), 987s CCP7213 (987s Clover Bar), 987s CCP7214 (987s Clover Bar) |
Cloverbar - TX1 LCR |
186.42 Days
Continuous |
|
| 31-Mar-25 07:00 |
29-Aug-25 17:00 |
EPCOR |
TE |
987s Protection & Control (987s Clover Bar) |
Cloverbar: protection blocking, 240 kV bus 3 differential for TX1 LCR duration |
151.42 Days
Continuous |
|
| 31-Mar-25 07:00 |
04-Jul-25 17:00 |
EPCOR |
TE |
Protection & Control (Woodcroft) |
Woodcroft: protection blocking for merging unit and protection upgrade. |
95.42 Days
Continuous |
|
| 12-May-25 08:00 |
29-Jun-25 16:00 |
ENMAX |
Outage |
3.84L (SS-3 - SS-13), 3B138-3.84 (SS-3), 13B138-3.84 (SS-13) |
complete reconductoring of 3.84 line |
48.33 Days
Continuous |
|
| 14-May-25 04:01 |
14-Jul-25 07:30 |
ALTALINK |
Outage |
799s T3 (799s Coleman) |
replace T3 |
61.15 Days
Continuous |
|
| 14-May-25 08:00 |
10-Feb-26 16:00 |
ENMAX |
TE |
Protection & Control (SS-32) |
32sub 138kV autoswitching protection outage |
272.38 Days
Continuous |
|
| 21-May-25 16:00 |
08-Jul-25 17:00 |
ATCO |
RB |
7L20 (810s Dome Cutbank - 7L228 tap), 7L80 (740s H.R. Milner - 857s Kakwa Ridge), 7L80 (733s Simonette - 857s Kakwa Ridge) |
due to damaged structure on 7L20 |
48.04 Days
Continuous |
|
| 25-May-25 07:00 |
01-Aug-25 17:00 |
EPCOR |
Outage |
987s GT2 (987s Clover Bar) |
maintenance |
68.42 Days
Continuous |
|
| 29-May-25 17:31 |
30-Jun-25 00:00 |
BHE Canada |
Outage |
120s C1 (120s Picture Butte) |
forced outage |
31.27 Days
Continuous |
AB-MATL |
| 01-Jun-25 14:44 |
30-Jun-25 17:00 |
ATCO |
Outage |
7L94 (827s Cranberry Lake - 878s Kidney Lake) |
forced outage due to wildfire |
29.09 Days
Continuous |
|
| 02-Jun-25 07:00 |
27-Jun-25 17:00 |
EPCOR |
Outage |
557s T1 (557s Castle Downs) |
S/S Tx1 bay outage |
25.42 Days
Continuous |
|
| 08-Jun-25 15:00 |
25-Nov-25 15:30 |
ALTALINK |
Outage |
397s 864W (397s Benbow) |
new 864L line construction, new 397s48 (VT6) install |
170.06 Days
Continuous |
|
| 09-Jun-25 07:00 |
27-Jun-25 17:00 |
EPCOR |
Outage |
52s T1 (52s East Industrial), 52s E2401 (52s East Industrial) |
transformer T1 protection upgrade cutovers |
18.42 Days
Continuous |
|
| 09-Jun-25 07:00 |
01-Aug-25 17:00 |
EPCOR |
TE |
330p Protection & Control (330p Genesee) |
138/500 kV protection blocking for relay maintenance |
53.42 Days
Continuous |
|
| 09-Jun-25 07:00 |
15-Aug-25 17:00 |
EPCOR |
TE |
Protection & Control (Poundmaker) |
protection blocking for relay maintenance |
67.42 Days
Continuous |
|
| 09-Jun-25 13:30 |
30-Jun-25 18:00 |
ATCO |
Outage |
716s 701C (716s Lloydminster) |
emergency maintenance |
21.19 Days
Continuous |
|
| 13-Jun-25 17:00 |
11-Feb-26 17:00 |
EPCOR |
Outage |
T3 (Rossdale) |
Rossdale - TX3 LCR |
243.04 Days
Continuous |
|
| 14-Jun-25 08:00 |
30-Jun-25 18:00 |
ALTALINK |
Outage |
38s C2 (38s East Edmonton) |
forced outage |
16.42 Days
Daily |
|
| 16-Jun-25 08:00 |
10-Jul-25 14:00 |
ENMAX |
Outage |
31.1C (SS-31) |
capacitor bank switcher replacement, grounding improvements |
24.25 Days
Continuous |
|
| 16-Jun-25 08:00 |
01-Aug-25 17:00 |
ATCO |
TE |
808s Protection & Control (808s Procter & Gamble), 808s RTU/SCADA (808s Procter & Gamble) |
SCADA upgrade at 808S. Protection and hardwired IO on-site will need to be cut-over to new SCADA system and tested |
46.38 Days
Continuous |
|
| 16-Jun-25 12:00 |
09-Jul-25 17:00 |
ATCO |
TE |
845s Protection & Control (845s Big Mountain) |
block 50BF/702 relay as required to commission new connections associated with 21A/7L13 and 21B/7L13 relay replacements |
23.21 Days
Continuous |
|
| 16-Jun-25 12:00 |
09-Jul-25 17:00 |
ATCO |
TE |
845s Protection & Control (845s Big Mountain) |
block 50BF/703 relay as required to commission new connections associated with 21A/7L13 and 21B/7L13 relay replacements |
23.21 Days
Continuous |
|
| 16-Jun-25 12:00 |
09-Jul-25 17:00 |
ATCO |
TE |
845s Protection & Control (845s Big Mountain) |
block 21B/7L45 in order to perform 702PTY2 voltage injections needed for 21B/7L13 relay replacement |
23.21 Days
Continuous |
|
| 16-Jun-25 12:00 |
09-Jul-25 17:00 |
ATCO |
TE |
845s Protection & Control (845s Big Mountain) |
block 21B/7L228 in order to perform 702PTY2 voltage injections needed for 21B/7L13 relay replacement |
23.21 Days
Continuous |
|
| 18-Jun-25 14:00 |
26-Jun-25 13:00 |
BCH |
Outage |
5L72 (BCH Mica G.S. - BCH Nicola) |
MCA 5CVT23 PM
|
7.96 Days
Continuous |
|
| 21-Jun-25 08:00 |
08-Jul-25 16:00 |
Syncrude, ATCO |
Outage |
RL1 (848s Ruth Lake - D05), T2 (D05 Syncrude), D05 517 (D05), D05 516 (D05), D05 513 (D05), D05 78 (D05), D05 517B (D05), D05 516A (D05), D05 516B (D05), D05 513A (D05), D05 513B (D05), D05 509 (D05), D05 78A (D05), 848s RL-1D1 (848s Ruth Lake) |
6-year 260 kV and 72 kV preventive maintenance |
17.33 Days
Continuous |
|
| 23-Jun-25 07:00 |
27-Jun-25 17:00 |
EPCOR |
Outage |
72CH9 (987s Clover Bar - EP Hardisty), 987s CH722 (987s Clover Bar), H724 (EP Hardisty) |
Cloverbar - CH9 zone doble and CH722 breaker maintenance and CDS3/HDS10 disconnect maintenance |
4.42 Days
Continuous |
|
| 23-Jun-25 07:00 |
26-Jun-25 17:00 |
EPCOR |
Outage |
72RV4 (EP 511s Victoria - Rossdale), EP 511s V726 (EP 511s Victoria), EP 511s V727 (EP 511s Victoria), RV726 (Rossdale) |
Victoria: RV4 zone doble and disconnect maintenance |
3.42 Days
Continuous |
|
| 23-Jun-25 07:00 |
26-Jun-25 18:00 |
ALTALINK, VISIONREQ |
Outage |
354s PMU (354s Summerview), 354s 138DS4 (354s Summerview) |
replace PMU device with new SEL PMU circuits |
3.46 Days
Continuous |
|
| 23-Jun-25 07:00 |
26-Jun-25 17:00 |
ALTALINK, VISIONREQ |
TE |
354s PMU (354s Summerview) |
PMU outage for replacement |
3.42 Days
Continuous |
|
| 23-Jun-25 07:00 |
26-Jun-25 18:00 |
ALTALINK, VISIONREQ |
TE |
354s RTU/SCADA (354s Summerview) |
setup of new PMU |
3.46 Days
Daily |
|
| 23-Jun-25 07:00 |
27-Jun-25 17:00 |
EPCOR |
Outage |
RR729 (Rossdale) |
Rossdale - RR729 breaker fail upgrade cutovers |
4.42 Days
Continuous |
|
| 23-Jun-25 07:00 |
27-Jun-25 17:30 |
ALTALINK |
TE |
678s RTU/SCADA (678s Okotoks) |
download updated configuration, and complete points check, iInstall and commission new port server |
4.44 Days
Daily |
|
| 23-Jun-25 07:00 |
26-Jun-25 17:00 |
ALTALINK |
TE |
227s RTU/SCADA (227s Cutting Lake) |
update the RTU configuration |
3.42 Days
Daily |
|
| 23-Jun-25 07:30 |
26-Jun-25 17:30 |
ALTALINK |
RB |
799L (235s Entwistle - 443s South Mayerthorpe), 799L (77s Sagitawah - 443s South Mayerthorpe) |
proximity for 799L rebuild (str 731-830) |
3.42 Days
Daily |
|
| 23-Jun-25 07:30 |
26-Jun-25 17:30 |
ALTALINK |
RB |
514L (396s Pincher Creek - 514BL tap), 514L (513s Lundbreck - 514BL tap) |
component replacement on 514L (str 16-186) and (str 452-453) - live line |
3.42 Days
Daily |
|
| 23-Jun-25 08:00 |
09-Jul-25 17:00 |
ATCO |
TE |
808s Protection & Control (808s Procter & Gamble) |
relay replacement |
16.38 Days
Continuous |
|
| 23-Jun-25 08:00 |
09-Jul-25 17:00 |
ATCO |
TE |
845s Protection & Control (845s Big Mountain), 845s RTU/SCADA (845s Big Mountain) |
relay replacement |
16.38 Days
Continuous |
|
| 23-Jun-25 08:00 |
27-Jun-25 17:00 |
ALTALINK |
TE |
799s RTU/SCADA (799s Coleman) |
addition and testing of alarms/controls associated with new T3 and associated protection upgrade |
4.38 Days
Daily |
|
| 23-Jun-25 08:00 |
27-Jun-25 17:00 |
ALTALINK |
TE |
799s Protection & Control (799s Coleman) |
circuit cutover and testing |
4.38 Days
Daily |
|
| 23-Jun-25 08:00 |
26-Jun-25 16:00 |
ATCO |
RB |
7L43 (739s Edith Lake - 809s Louise Creek) |
walk up and climbing inspection |
3.33 Days
Continuous |
|
| 23-Jun-25 08:00 |
26-Jun-25 17:30 |
ALTALINK |
TE |
678s Protection & Control (678s Okotoks) |
SCADA upgrade project |
3.4 Days
Daily |
|
| 23-Jun-25 08:00 |
26-Jun-25 16:00 |
ATCO |
RB |
7L39 (722s Crystal Lake - 7LA39 tap), 7L39 (811s Clairmont Lake - 7LA39 tap) |
walk up and climbing inspection |
3.33 Days
Continuous |
|
| 23-Jun-25 08:00 |
26-Jun-25 16:00 |
ATCO |
RB |
7L08 (830s Carmon - 834s Wesley Creek) |
walk up and climbing inspection |
3.33 Days
Continuous |
|
| 23-Jun-25 09:00 |
30-Jun-25 18:00 |
SUNCOR |
TE |
29EDD-34 RTU/SCADA (29EDD-34) |
upgrade network switch firmware and reboot network switch |
7.38 Days
Continuous |
|
| 23-Jun-25 09:00 |
30-Jun-25 18:00 |
SUNCOR |
TE |
29EDD-1 RTU/SCADA (29EDD-1 Millennium) |
upgrade network switch firmware and reboot network switch |
7.38 Days
Continuous |
|
| 23-Jun-25 09:30 |
27-Jun-25 19:00 |
ATCO |
Outage |
808s 702T (808s Procter & Gamble), 808s 702 (808s Procter & Gamble) |
7L13 relay replacement,
CT testing, breaker testing |
4.4 Days
Continuous |
|
| 23-Jun-25 09:30 |
27-Jun-25 17:30 |
ATCO |
Outage |
757s 912T (757s Battle River), 757s 710 (757s Battle River), 757s 912 (757s Battle River), 755s 9L80D2 (755s Cordel) |
transformer class1 major testing - breaker testing - 710 at 757s |
4.33 Days
Continuous |
|
| 23-Jun-25 10:00 |
27-Jun-25 17:30 |
ATCO |
Outage |
9L29 (946s Oakland - 963s Coyote Lake), 7L128 (963s Coyote Lake - 7LA128 tap), 963s 901T (963s Coyote Lake), 963s 901 (963s Coyote Lake), 963s 701 (963s Coyote Lake), 963s 7L128D4 (963s Coyote Lake), 963s 9L29D1 (963s Coyote Lake), 946s 9L29D2 (946s Oakland) |
transformer testing - 901T at 963s, qualitrol ITM/ETM settings updates |
4.31 Days
Continuous |
|
| 23-Jun-25 10:00 |
27-Jun-25 17:30 |
ATCO |
TE |
963s RTU/SCADA (963s Coyote Lake) |
settings updates
|
4.31 Days
Continuous |
|
| 23-Jun-25 11:00 |
26-Jun-25 16:00 |
ATCO, ALTALINK |
RB |
9L960 (13s Deerland - 825s Whitefish Lake) |
climbing inspection on 9L960 and 9L961 |
3.21 Days
Continuous |
|
| 23-Jun-25 11:00 |
26-Jun-25 16:00 |
ATCO, ALTALINK |
RB |
9L961 (13s Deerland - 825s Whitefish Lake) |
climbing inspection |
3.21 Days
Continuous |
|
| 23-Jun-25 11:00 |
26-Jun-25 16:00 |
ATCO, ALTALINK |
RB |
9L960 (13s Deerland - 825s Whitefish Lake) |
climbing inspection |
3.21 Days
Daily |
|
| 23-Jun-25 11:00 |
26-Jun-25 16:00 |
ATCO, ALTALINK |
RB |
9L961 (13s Deerland - 825s Whitefish Lake) |
climbing inspection |
3.21 Days
Daily |
|
| 23-Jun-25 11:30 |
26-Jun-25 18:30 |
ALTALINK |
Outage |
89s T1 (89s Ellerslie) |
doble and maintenance |
3.29 Days
Continuous |
|
| 23-Jun-25 12:00 |
04-Jul-25 16:00 |
ATCO |
Outage |
826s 901T (826s Marguerite Lake), 826s 502R (826s Marguerite Lake) |
transformer major maintenance |
11.17 Days
Continuous |
|
| 23-Jun-25 12:00 |
04-Jul-25 16:00 |
REDDEER |
Outage |
217s T2 (217s North Red Deer) |
emergency outage for protection relay replacement |
11.17 Days
Continuous |
|
| 23-Jun-25 13:30 |
26-Jun-25 18:30 |
ALTALINK |
Outage |
1140L (89s Ellerslie - 289s Saunders Lake), 89s 952 (89s Ellerslie), 89s 1052 (89s Ellerslie) |
breaker maintenance |
3.21 Days
Continuous |
|
| 24-Jun-25 08:00 |
26-Jun-25 18:00 |
ALTALINK |
Outage |
891L (226s Garden City - 863L tap) |
SAB-1 maintenance. |
2.42 Days
Continuous |
|
| 24-Jun-25 08:00 |
26-Jun-25 18:00 |
EHN, ALTALINK, ENBRIDGE |
Outage |
226s Garden City, 891L (226s Garden City - 863L tap), 226s T1 (226s Garden City), 226s 52/T1 (226s Garden City) |
station maintenance |
2.42 Days
Continuous |
|
| 25-Jun-25 07:00 |
26-Jun-25 18:00 |
ALTALINK |
Outage |
973L (39s Bickerdike - 310p Sundance) |
urgent repair - broken strands on the 973L conductor between spans 24-25 |
1.46 Days
Continuous |
|
| 25-Jun-25 07:00 |
26-Jun-25 18:00 |
ALTALINK |
RB |
974L (39s Bickerdike - 310p Sundance) |
urgent - proximity for 973L conductor repair |
1.46 Days
Daily |
|
| 25-Jun-25 07:00 |
26-Jun-25 17:00 |
EPCOR |
TE |
557s Protection & Control (557s Castle Downs) |
communication fail troubleshooting |
1.42 Days
Continuous |
|
| 25-Jun-25 07:30 |
26-Jun-25 17:30 |
ALTALINK |
RB |
1201L (520s Bennett - BCH Cranbrook) |
replacing insulation at STR 2 |
1.42 Days
Daily |
|
| 25-Jun-25 08:00 |
03-Jul-25 20:00 |
SUNCOR |
Outage |
29PL6-4 (29EDD-1 Millennium - 30EDD-1), 29EDD-1 29EDD1s1552 (29EDD-1 Millennium), 29EDD-1 29EDD1s1652 (29EDD-1 Millennium), 30EDD-1 622 (30EDD-1), 30EDD-1 623 (30EDD-1), 29EDD-1 29EDD1SPL6-4 (29EDD-1 Millennium), 30EDD-1 29PL6-4D1 (30EDD-1) |
29CVT-8 system PM, 29PL6-4 A87L GE L90 firmware, 29PL6-4 bird cover on line switch and 30EDD-01 29PS6-4D1 replacement |
8.5 Days
Continuous |
|
| 25-Jun-25 08:00 |
26-Jun-25 18:00 |
ENMAX |
Outage |
36.2TR (SS-36) |
tap changer inspection, reversing switch check, oil sampling MT, TC and tap changer oil filtration maintenance |
1.42 Days
Continuous |
|
| 25-Jun-25 08:00 |
26-Jun-25 17:00 |
ALTALINK |
TE |
348s RTU/SCADA (348s Marlboro) |
2025 MPLS firmware and chassis upgrade at 348s |
1.38 Days
Daily |
|
| 25-Jun-25 08:00 |
26-Jun-25 16:00 |
ATCO |
RB |
9L36 (825s Whitefish Lake - 826s Marguerite Lake) |
repair damaged tower 46 |
1.33 Days
Continuous |
|
| 25-Jun-25 08:00 |
26-Jun-25 16:00 |
ATCO |
RB |
9L37 (825s Whitefish Lake - 826s Marguerite Lake) |
repair damaged tower 46 |
1.33 Days
Continuous |
|
| 25-Jun-25 09:00 |
26-Jun-25 14:00 |
ENMAX |
Outage |
31.3TR (SS-31) |
grounding improvements and install new surge arrestor insulator supports |
29 Hours
Continuous |
|
| 25-Jun-25 10:00 |
26-Jun-25 17:00 |
ATCO |
TE |
716s Protection & Control (716s Lloydminster), 716s RTU/SCADA (716s Lloydminster) |
replace the AC cable for 701T cabinet with a larger size conductor |
31 Hours
Continuous |
|
| 25-Jun-25 16:15 |
27-Jun-25 16:00 |
ATCO |
Outage |
ATC 793s 702T (ATC 793s West Peace River) |
complete CCT SW S&C test and maintenance 702TCS |
1.99 Days
Continuous |
|
| 26-Jun-25 07:30 |
26-Jun-25 12:30 |
ALTALINK |
Outage |
700L (422s Westwood - 746L tap), 700L (746s Sherwood Park - 746L tap), 746L (700L tap - 746AL tap), 422s 700 (422s Westwood), 746s 700N (746s Sherwood Park) |
replacing insulator on structure 52 |
5 Hours
Daily |
|
| 26-Jun-25 08:00 |
01-Jul-25 16:00 |
SUNCOR |
Outage |
635EDD-1001 635PK-1002 (635EDD-1001), 635EDD-1001 635-752-642 (635EDD-1001), 635EDD-1001 635-752-643 (635EDD-1001) |
635EDD-1001 144 kV diameter 4 equipment maintenance |
5.33 Days
Continuous |
|
| 26-Jun-25 08:00 |
26-Jun-25 18:00 |
ATCO |
TE |
927s RTU/SCADA (927s Buchanan Creek), ATCO Telecom Equipment |
Deadwood_T-Telecom- telecom DC systems outage, load transfer from Hayley charger to unity rectifier
|
10 Hours
Continuous |
|
| 26-Jun-25 08:00 |
26-Jun-25 17:00 |
ALTALINK |
TE |
288s RTU/SCADA (288s Wolf Creek) |
replace failing SMP16 RTU |
9 Hours
Daily |
|
| 26-Jun-25 08:00 |
26-Jun-25 17:00 |
ALTALINK |
TE |
534s RTU/SCADA (534s Eckville), 17s RTU/SCADA (17s Benalto), AltaLink PMU, 17s Protection & Control (17s Benalto) |
upgrade MPLS |
9 Hours
Daily |
|
| 26-Jun-25 08:30 |
26-Jun-25 16:30 |
ALTALINK |
Outage |
356s 652 (356s Milo) |
356s652 PRC5 maintenance, gas top up |
8 Hours
Daily |
|
| 26-Jun-25 09:00 |
26-Jun-25 17:00 |
ATCO |
TE |
764s RTU/SCADA (764s Heisler) |
Heisler_S-Telecom - low BES firewall install - outage to local network & SCADA communications |
8 Hours
Continuous |
|
| 26-Jun-25 09:00 |
26-Jun-25 15:00 |
ALTALINK |
IO |
632s PS1 (632s Russell) |
urgent repairs to the distribution system |
6 Hours
Daily |
|
| 26-Jun-25 12:31 |
26-Jun-25 17:30 |
ALTALINK |
Outage |
706L (410s Josephburg - 706AL tap) |
replacing insulator on structure |
4.98 Hours
Daily |
|
| 27-Jun-25 08:00 |
27-Jun-25 12:00 |
ENMAX |
Outage |
26.81L (SS-26 - SS-32), 32B138-26.81 (SS-32), 26B138-26.81 (SS-26) |
breaker SF6 gas sample for 32B138-26.81 |
4 Hours
Continuous |
|
| 27-Jun-25 12:00 |
27-Jun-25 18:00 |
ALTALINK |
Outage |
726L (37s North Calder - 71s Lamoureux), 37s 726E (37s North Calder) |
replacing insulator on structure 197 |
6 Hours
Daily |
|
| 27-Jun-25 12:00 |
27-Jun-25 16:00 |
ENMAX |
Outage |
32.83L (SS-32 - SS-40), 32B138-32.83 (SS-32), 40B138-32.83 (SS-40) |
breaker SF6 gas sample for 32B138-32.83 |
4 Hours
Continuous |
|
| 27-Jun-25 13:00 |
27-Jun-25 17:00 |
ATCO |
RB |
ATC 793s 144kV Bus (ATC 793s West Peace River) |
re-attach jumper for 702TCS at 793s
|
4 Hours
Continuous |
|
| 28-Jun-25 08:00 |
28-Jun-25 12:00 |
ENMAX |
Outage |
7B138-7BT3 (SS-7) |
breaker SF6 gas sample - 7B138-7BT3 |
4 Hours
Continuous |
|
| 28-Jun-25 12:00 |
28-Jun-25 16:00 |
ENMAX |
Outage |
47B138-771 (SS-47) |
breaker SF6 gas sample - 47B138-771 |
4 Hours
Continuous |
|
| 30-Jun-25 07:00 |
02-Jul-25 17:00 |
ALTALINK |
TE |
336s Protection & Control (336s Fincastle) |
perform end to end testing on 610L ‘B’ protection relays between 83s and 336s |
2.42 Days
Continuous |
|
| 30-Jun-25 07:00 |
02-Jul-25 17:00 |
ALTALINK |
TE |
83s Protection & Control (83s Taber) |
perform end to end testing on 610L ‘B’ protection relays between 83s and 336s |
2.42 Days
Continuous |
|
| 30-Jun-25 07:00 |
04-Jul-25 17:00 |
ALTALINK, EPCOR |
RB |
1045L (EP 805s Jasper - 1045AL tap) |
reclose blocking for City of Edmonton West LRT, working in proximity |
4.42 Days
Continuous |
|
| 30-Jun-25 07:00 |
04-Jul-25 17:30 |
ALTALINK, EPCOR |
RB |
1045L (310p Sundance - 1045AL tap), 1045AL (320p Keephills - 1045L tap), 1045L (EP 805s Jasper - 1045AL tap) |
reclose blocking for City of Edmonton West LRT, working in proximity |
4.44 Days
Daily |
|
| 30-Jun-25 07:00 |
01-Aug-25 17:00 |
EPCOR |
TE |
665s Protection & Control (665s Dome) |
relay maintenance |
32.42 Days
Continuous |
|
| 30-Jun-25 07:00 |
04-Jul-25 17:00 |
ALTALINK, EPCOR |
RB |
1044L (EP 805s Jasper - 816s Petrolia) |
reclose blocking for city of Edmonton West LRT |
4.42 Days
Continuous |
|
| 30-Jun-25 08:00 |
15-Jul-25 16:00 |
ENMAX |
Outage |
3.82L (SS-3 - SS-8), 3B138-3.82 (SS-3) |
sheath & oil testing |
15.33 Days
Continuous |
|
| 30-Jun-25 08:00 |
17-Jul-25 18:00 |
SUNCOR |
Outage |
29PL7-2 (29EDD-18 Firebag - 29EDD-63), 29EDD-63 29PT-179 (29EDD-63 Firebag Co-Gen), 29EDD-63 30-252-11301 (29EDD-63) |
maintenance |
17.42 Days
Continuous |
|
| 30-Jun-25 08:00 |
04-Jul-25 17:00 |
ALTALINK |
TE |
799s RTU/SCADA (799s Coleman) |
addition and testing of alarms/controls associated with new T3 and associated protection upgrade |
4.38 Days
Daily |
|
| 30-Jun-25 08:00 |
04-Jul-25 17:00 |
ALTALINK |
TE |
799s Protection & Control (799s Coleman) |
circuit cutover and testing |
4.38 Days
Daily |
|
| 30-Jun-25 08:00 |
30-Jun-25 16:00 |
ENMAX |
TE |
RTU/SCADA (SS-34) |
upgrade SDN |
8 Hours
Continuous |
|
| 30-Jun-25 09:00 |
02-Jul-25 16:00 |
ATCO |
Outage |
ATC 793s 701 (ATC 793s West Peace River), 7L51 (ATC 793s West Peace River - 927s Buchanan Creek) |
BREAKER SF6 HPL COMPLETE TESTING - 701 @ 793S |
2.29 Days
Continuous |
|
| 30-Jun-25 09:00 |
30-Jun-25 10:00 |
Lethbridge |
TE |
111s Protection & Control (111s Coalbanks) |
111S725LE CB1 GE 60 relay - replace internal relay battery |
60 Mins
Continuous |
|
| 30-Jun-25 09:30 |
30-Jun-25 17:00 |
ATCO |
Outage |
6L11 (739s Edith Lake - 854s Swan Dive), 739s 602 (739s Edith Lake), 854S 601TD (854s Swan Dive), 854s 6L11D2 (854s Swan Dive) |
breaker SF6 testing |
7.5 Hours
Continuous |
|
| 30-Jun-25 09:30 |
30-Jun-25 17:30 |
ATCO |
Outage |
801s 907 (801s Anderson) |
BREAKER MIN OIL HLR PARTIAL TESTING - 905 @ 801S |
8 Hours
Continuous |
|
| 30-Jun-25 10:00 |
04-Jul-25 17:30 |
ATCO |
Outage |
813s SVC (813s Little Smoky) |
SVC GLYCOL COOLED MAINTENANCE |
4.31 Days
Continuous |
|
| 30-Jun-25 10:00 |
30-Jun-25 11:00 |
Lethbridge |
TE |
111s Protection & Control (111s Coalbanks) |
111s207l CB2 GE c60 relay
- replace internal relay battery |
60 Mins
Continuous |
|
| 30-Jun-25 11:00 |
02-Jul-25 17:00 |
ATCO |
TE |
2043s Protection & Control (2043s Freer), 2043s RTU/SCADA (2043s Freer) |
2025 PRC-006 - relay settings updates |
2.25 Days
Continuous |
|
| 30-Jun-25 12:00 |
30-Jun-25 16:00 |
ATCO |
Outage |
820s 701 (820s Hangingstone), 7L36 (820s Hangingstone - 2009s Willow Lake) |
PRC-005 - TRIP COIL TESTING - BREAKER 701 @ 820S |
4 Hours
Continuous |
|
| 01-Jul-25 07:00 |
02-Jul-25 18:00 |
ATCO, CNRL |
TE |
859s Protection & Control (859s Primrose) |
relay testing of 701 breaker sync check relays in 859s for PRC-005 |
1.46 Days
Continuous |
|
| 01-Jul-25 08:00 |
01-Jul-25 18:00 |
ENMAX |
Outage |
28.1TR (SS-28) |
repair 28.1TR deficiency |
10 Hours
Continuous |
|
| 01-Jul-25 09:00 |
01-Jul-25 17:00 |
BCH |
Outage |
BCH Green Hills, 1D6L274 (BCH Green Hill tap) |
inspection/doble GRH 1MK1 BC maintenance does not affect the Alberta ATC
|
8 Hours
Continuous |
AB-BC |
| 02-Jul-25 07:00 |
06-Jul-25 17:00 |
ALTALINK, EPCOR |
Outage |
909L (89s Ellerslie - 665s Dome), 72DS26 (665s Dome - Strathcona), 665s T3 (665s Dome), 665s D2401 (665s Dome), 665s D2404 (665s Dome), 665s D721 (665s Dome), S721 (Strathcona), 665s DDS13 (665s Dome), 665s DAB3 (665s Dome), 665s DDS17 (665s Dome), SDS3 (Strathcona) |
doble, disconnect and breaker maintenance |
4.42 Days
Continuous |
|
| 02-Jul-25 07:00 |
06-Jul-25 17:30 |
ALTALINK, EPCOR |
Outage |
909L (89s Ellerslie - 665s Dome), 89s 1052 (89s Ellerslie), 89s 1152 (89s Ellerslie) |
doble, disconnect and breaker maintenance |
4.44 Days
Continuous |
|
| 02-Jul-25 07:00 |
02-Jul-25 12:00 |
ALTALINK, BCH |
Outage |
786L (799s Coleman - BCH Natal), 799s 786W (799s Coleman), 1D24 (BCH Natal) |
T3 protection trip testing and auto-restore function testing |
5 Hours
Daily |
|
| 02-Jul-25 07:00 |
02-Jul-25 12:00 |
BCH |
IO |
1L275 (799s Coleman - BCH Natal) |
AltaLink - 799s T3 protection trip test and auto reclose function testing |
5 Hours
Continuous |
AB-BC |
| 02-Jul-25 07:00 |
02-Jul-25 16:30 |
ALTALINK |
Outage |
83s T1 (83s Taber), 83s 65 (83s Taber) |
update grounding on T1 on the 138 kV and 25 kV LAs |
9.5 Hours
Daily |
|
| 02-Jul-25 07:30 |
04-Jul-25 17:30 |
ALTALINK |
RB |
799L (235s Entwistle - 443s South Mayerthorpe), 799L (77s Sagitawah - 443s South Mayerthorpe) |
proximity for 799L rebuild (str 731-830) |
2.42 Days
Daily |
|
| 02-Jul-25 08:00 |
02-Jul-25 18:00 |
Syncrude |
TE |
Syncrude ICCP Outage |
SCADA - server update
|
10 Hours
Continuous |
|
| 02-Jul-25 08:00 |
04-Jul-25 17:30 |
ALTALINK |
TE |
678s RTU/SCADA (678s Okotoks) |
download updated configuration and complete points check |
2.4 Days
Daily |
|
| 02-Jul-25 08:00 |
02-Jul-25 17:00 |
ALTALINK |
TE |
AltaLink Telecom Equipment |
complete MPLS upgrade and LAN Switch replacement |
9 Hours
Daily |
|
| 02-Jul-25 08:00 |
04-Jul-25 17:00 |
ALTALINK |
RB |
610L (83s Taber - 336s Fincastle) |
raising the OPGW splice box on str 108 and 113 |
2.38 Days
Daily |
|
| 02-Jul-25 08:00 |
02-Jul-25 17:00 |
ALTALINK |
TE |
452s RTU/SCADA (452s B.F. Goodrich Fort Saskatchewan) |
replace null modems and gender changer with screw down versions |
9 Hours
Daily |
|
| 02-Jul-25 08:30 |
04-Jul-25 17:30 |
ALTALINK |
TE |
678s Protection & Control (678s Okotoks) |
SCADA upgrade project requires various protection outages |
2.38 Days
Daily |
|
| 02-Jul-25 09:00 |
02-Jul-25 12:00 |
ATCO |
Outage |
7L97 (820s Hangingstone - 7LA97 tap), 820s 702 (820s Hangingstone) |
PRC-005 - trip coil testing - breaker 820s 702 |
3 Hours
Continuous |
|
| 02-Jul-25 09:00 |
04-Jul-25 20:00 |
SUNCOR |
TE |
29EDD-34 Protection & Control (29EDD-34) |
29EDD-34 IMS relay - manually adjust the year of relay -300184102 |
2.46 Days
Continuous |
|
| 02-Jul-25 09:30 |
03-Jul-25 17:30 |
ATCO |
Outage |
749s 702 (749s Flyingshot Lake) |
PRC-005 - TRIP COIL TESTING - BREAKER 702 @ 749S
BREAKER MIN OIL HLR COMPLETE TESTING - 702 @ 749S |
1.33 Days
Continuous |
|
| 02-Jul-25 09:30 |
03-Jul-25 17:00 |
ATCO |
Outage |
7L43 (739s Edith Lake - 809s Louise Creek), 739s 701 (739s Edith Lake), 809s 704 (809s Louise Creek) |
breaker SF6 HGF complete testing |
31.5 Hours
Continuous |
|
| 02-Jul-25 09:30 |
03-Jul-25 17:30 |
ATCO |
Outage |
801s 905 (801s Anderson) |
breaker minimum oil HLR partial testing |
1.33 Days
Continuous |
|
| 02-Jul-25 09:30 |
02-Jul-25 17:30 |
ALTALINK |
RB |
1201L (520s Bennett - BCH Cranbrook) |
installing trail cams at 1201L314 - proximity |
8 Hours
Daily |
|
| 02-Jul-25 10:00 |
03-Jul-25 17:30 |
ATCO |
Outage |
774s 705C (774s Monitor) |
trip coil testing on breaker 705 at 774s PRC-005 |
31.5 Hours
Continuous |
|
| 02-Jul-25 10:00 |
02-Jul-25 17:00 |
ATCO |
TE |
ATCO Telecom Equipment |
IRU radio to Holden T, fix switched RAC/DAC ethernet cables on the radio |
7 Hours
Continuous |
|
| 02-Jul-25 10:00 |
04-Jul-25 17:00 |
ALTALINK |
TE |
95s RTU/SCADA (95s Imperial Oil Edmonton) |
SCADA /RTU upgrade preparation |
2.29 Days
Daily |
|
| 02-Jul-25 10:00 |
02-Jul-25 17:00 |
ALTALINK |
IO |
AltaLink Telecom Equipment |
IRU radio to Holden T, fix switched RAC/DAC ethernet cables on the radio |
7 Hours
Daily |
|
| 02-Jul-25 10:30 |
04-Jul-25 15:30 |
ATCO |
Outage |
7L91 (715s Leming Lake - 826s Marguerite Lake) |
GOI required for climbing inspection on 7L91 and for deficiency repair. |
2.21 Days
Continuous |
|
| 02-Jul-25 12:00 |
02-Jul-25 17:00 |
ALTALINK |
Outage |
799s 138kV Bus (799s Coleman), 170L (632s Russell - 799s Coleman), 799s T3 (799s Coleman), 799s 170E (799s Coleman), 799s 30 (799s Coleman) |
T3 protection trip testing, MOD operation and auto-restore function testing |
5 Hours
Daily |
|
| 02-Jul-25 12:00 |
02-Jul-25 17:00 |
ALTALINK |
IO |
170L (632s Russell - 799s Coleman) |
AltaLink - 799s T3 protection trip test, MOD operation and reclose function testing
|
5 Hours
Continuous |
AB-BC |
| 02-Jul-25 12:00 |
02-Jul-25 17:00 |
ALTALINK |
TE |
799s Protection & Control (799s Coleman) |
disable 786L protections to prevent mis-operation due to 799s34 PT outage |
5 Hours
Daily |
|
| 02-Jul-25 12:30 |
02-Jul-25 16:00 |
ATCO |
Outage |
7L135 (820s Hangingstone - 977s Salt Creek), 820s 704 (820s Hangingstone) |
prc-005 trip coil testing breaker 704 820S |
3.5 Hours
Continuous |
|
| 02-Jul-25 23:00 |
03-Jul-25 03:00 |
ALTALINK |
Outage |
62s T1 (62s Brazeau Plant) |
maintenance |
4 Hours
Continuous |
|
| 02-Jul-25 23:00 |
02-Jul-25 23:30 |
BCH |
Outage |
5L72 (BCH Mica G.S. - BCH Nicola) |
close 500kV DS from G4 & LS2 OOS BC Hydro maintenance does not affect the Alberta ATC
|
30 Mins
Continuous |
AB-BC |
| 03-Jul-25 03:01 |
03-Jul-25 07:00 |
ALTALINK |
Outage |
62s T2 (62s Brazeau Plant) |
maintenance |
3.98 Hours
Continuous |
|
| 03-Jul-25 07:00 |
04-Jul-25 18:00 |
ALTALINK |
Outage |
704L (51s Wainwright - 478s Tucuman) |
replace structure 298. |
1.46 Days
Continuous |
|
| 03-Jul-25 07:00 |
04-Jul-25 18:00 |
ATCO, CNRL |
TE |
859s Protection & Control (859s Primrose) |
relay testing of 702 breaker sync check relays in 859s PRC-005 |
1.46 Days
Continuous |
|
| 03-Jul-25 07:00 |
03-Jul-25 16:30 |
ALTALINK |
Outage |
83s T3 (83s Taber), 83s 64 (83s Taber) |
update grounding on T3 on the 138 kV and 25 kV LAs |
9.5 Hours
Daily |
|
| 03-Jul-25 07:00 |
03-Jul-25 16:00 |
ALTALINK |
TE |
AltaLink Telecom Equipment |
radio alarms needs to be rectified |
9 Hours
Daily |
|
| 03-Jul-25 08:00 |
04-Jul-25 19:00 |
ATCO |
Outage |
845s 703 (845s Big Mountain) |
Protection upgrade 21A & 21B relays 7L13.
CT testing, breaker testing |
1.46 Days
Continuous |
|
| 03-Jul-25 08:00 |
04-Jul-25 19:00 |
ATCO |
Outage |
808s 702T (808s Procter & Gamble), 808s 702 (808s Procter & Gamble) |
7L13 relay replacement |
1.46 Days
Continuous |
|
| 03-Jul-25 08:00 |
03-Jul-25 15:00 |
ALTALINK |
Outage |
370s T4 (370s North Lethbridge) |
770L insulator replacement |
7 Hours
Daily |
|
| 03-Jul-25 08:00 |
04-Jul-25 15:00 |
ALTALINK |
Outage |
770L (254s Coaldale - 370s North Lethbridge) |
Outage required for 770L insulator replacement @ 370s |
31 Hours
Continuous |
|
| 03-Jul-25 08:00 |
03-Jul-25 17:30 |
ALTALINK |
Outage |
86s 152 (86s Bigstone), 805L (86s Bigstone - 964s Pigeon Lake) |
install and test new relay |
9.5 Hours
Daily |
|
| 03-Jul-25 08:00 |
03-Jul-25 17:00 |
ALTALINK |
TE |
AltaLink Telecom Equipment, 13s Protection & Control (13s Deerland) |
upgrade MPLS nodes |
9 Hours
Daily |
|
| 03-Jul-25 08:00 |
04-Jul-25 18:00 |
ATCO |
TE |
808s Protection & Control (808s Procter & Gamble) |
commission new SCADA points |
1.42 Days
Continuous |
|
| 03-Jul-25 09:00 |
03-Jul-25 17:00 |
BCH |
Outage |
2L293 (BCH Nelway - BCH Selkirk), 2D1CB3 (BCH Selkirk) |
Purpose: F26 AOP- This is for Maintenance on SEL 2D1CB3 |
8 Hours
Continuous |
AB-BC |
| 03-Jul-25 09:00 |
04-Jul-25 17:00 |
BCH |
Outage |
2L113 (BCH Cranbrook - BCH Natal) |
purpose: 2CVT3 Inspection |
1.33 Days
Continuous |
AB-BC |
| 03-Jul-25 09:00 |
03-Jul-25 17:00 |
ALTALINK |
TE |
294s RTU/SCADA (294s Brazeau Outletworks) |
troubleshoot 294s IED trouble alarm, possibility to replace RTU or swap failing LAN port |
8 Hours
Daily |
|
| 03-Jul-25 10:00 |
03-Jul-25 17:00 |
ATCO |
TE |
ATCO Telecom Equipment, 972s RTU/SCADA (972s Tinchebray) |
SAR NET2 replacing two V2 Ethernet cards with V3 cards.
Replacing cards 1 at a time to minimize impact.
Impact to the following traffic:
Tinchebray Sub low bes SCADA loss of visibility
Halkirk SCADA |
7 Hours
Continuous |
|
| 03-Jul-25 10:00 |
03-Jul-25 17:00 |
ATCO |
TE |
ATCO Telecom Equipment |
Moving circuits between Lanfine to Pemukan fibers to the third tube of 9L46 OPGW due to deteriorating/ failing fibers in 1-12.
- 9L46A will be OOS during move
- AML Pigeon Lake to Hansman link (P2 on their SAR-HC)
- Fujitsu FW4100 SH1 S2P1 - |
7 Hours
Continuous |
|
| 04-Jul-25 07:00 |
10-Jul-25 17:30 |
ALTALINK |
RB |
199L (347s AML Fox Creek - 199AL tap), 199L (268s Whitecourt - 199AL tap) |
anchor installation and material delivery near 199L structures 170-178 |
6.44 Days
Daily |
|
| 04-Jul-25 08:00 |
04-Jul-25 17:00 |
ALTALINK |
TE |
40s Protection & Control (40s Wetaskiwin) |
standard relay maintenance |
9 Hours
Daily |
|
| 04-Jul-25 08:00 |
04-Jul-25 17:00 |
ALTALINK |
TE |
108s Protection & Control (108s Amelia), 108s RTU/SCADA (108s Amelia) |
upgrade MPLS |
9 Hours
Daily |
|
| 04-Jul-25 08:30 |
04-Jul-25 17:30 |
ALTALINK |
Outage |
368s C1 (368s Burdett) |
PRC maintenance |
9 Hours
Daily |
|