![]() 26-Jul-24 10:00 |
![]() 30-Jun-27 16:00 |
![]() ATCO |
![]() Outage |
![]() 826s 504R (826s Marguerite Lake) |
![]() emergency removal to replace failed 502R @834S |
![]() 25,662 Hours
Continuous |
![]() |
| 20-Mar-25 08:00 |
30-Sep-26 17:00 |
ALTALINK |
Outage |
256s C1 (256s Harmattan) |
forced outage |
13,425 Hours
Continuous |
|
| 25-Nov-25 17:46 |
25-Sep-26 18:00 |
ATCO |
Outage |
876s 901T (876s Brintnell) |
forced outage oil leaking |
7,295.23 Hours
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 |
17,528 Hours
Daily |
|
| 04-Jan-26 08:00 |
16-Oct-26 20:00 |
SUNCOR |
Outage |
29EDD-34 260kV Bus 29PP-45 (29EDD-34), 29EDD-34 29-952-113 (29EDD-34), 29EDD-34 29PS-216 (29EDD-34) |
urgent repairs on 29PT-224 at 29EDD34 on 29PP-45 bus |
5,791 Hours
Continuous |
|
| 21-Jan-26 08:00 |
13-Oct-26 16:00 |
ENMAX |
Outage |
5.7TR (SS-5) |
25kV switchgear replacement |
6,775 Hours
Continuous |
|
| 06-Mar-26 17:00 |
13-Nov-26 17:00 |
EPCOR |
Outage |
T1 (Woodcroft) |
woodcroft: TX1 LCR civil |
6,048 Hours
Continuous |
|
| 10-Mar-26 10:00 |
30-Nov-26 17:00 |
ATCO |
TE |
743s RTU/SCADA (743s Sarah Lake) |
throughout the course of the project, different apparatus are being replaced, RTU will be blocked prior to download |
6,368 Hours
Continuous |
|
| 01-May-26 17:00 |
25-Nov-26 17:00 |
EPCOR |
Outage |
T1 (Meadowlark) |
T1 LCR civil work |
4,993 Hours
Continuous |
|
| 19-May-26 07:00 |
02-Oct-26 17:00 |
EPCOR |
TE |
987s Protection & Control (987s Clover Bar) |
protection blocking - relay maintenance and bus differential upgrade project |
2,434 Hours
Continuous |
|
| 27-May-26 18:00 |
30-Sep-26 17:00 |
ALTALINK |
Outage |
526s C1 (526s Buffalo Creek) |
forced outage |
3,023 Hours
Daily |
|
| 04-Jun-26 07:01 |
10-Feb-27 17:00 |
EPCOR |
Outage |
T1 (Rossdale) |
rossdale: TX1 lcr civil |
6,034.98 Hours
Continuous |
|
| 07-Jun-26 17:05 |
01-Oct-26 00:00 |
ACCIONA, ENBRIDGE, ICPCL |
Outage |
139s C1 (139s Hillridge) |
forced outage |
2,766.92 Hours
Continuous |
|
| 08-Jun-26 07:00 |
04-Dec-26 17:00 |
EPCOR |
TE |
EP 511s Protection & Control (EP 511s Victoria) |
72kV breaker fail protection blocking |
2,626 Hours
Continuous |
|
| 15-Jun-26 07:00 |
18-Dec-26 17:00 |
EPCOR |
TE |
805s Protection & Control (805s Jasper) |
protection blocking, breaker replacement project |
1,954 Hours
Continuous |
|
| 19-Jun-26 17:00 |
03-Dec-27 17:00 |
EPCOR |
Outage |
EP 511s Victoria T3 (EP 511s Victoria) |
emergency outage due to degraded asset condition |
12,769 Hours
Continuous |
|
| 10-Jul-26 08:00 |
18-Nov-26 16:00 |
Syncrude |
Outage |
815 (Syncrude Mildred Lake), 816 (Syncrude Mildred Lake) |
replace 72 kV underground feeder cables on west mine feeder |
2,696 Hours
Continuous |
|
| 14-Jul-26 08:00 |
22-Oct-26 17:00 |
ALTALINK |
Outage |
287s 552 (287s Hazelwood) |
287s552 must be open during 443L and 417L outage for the 214s AIS to work properly |
1,905 Hours
Continuous |
|
| 15-Jul-26 14:01 |
22-Oct-26 09:00 |
ALTALINK |
Outage |
417L (55s Olds - 281s Johnson), 55s T1 (55s Olds), 55s T2 (55s Olds), 55s 417 (55S Olds), 287s 552 (287s Hazelwood), 55s 2 (55s Olds) |
mobile install at 55s for P_C major upgrade, repair/replace s80, s83, s84. salvage s51. |
1,962.98 Hours
Continuous |
|
| 20-Jul-26 07:00 |
31-Dec-26 17:00 |
EPCOR |
TE |
Protection & Control (Woodcroft) |
woodcroft: protection blocking for TX1 LCR, line protection testing, and repairs |
3,947 Hours
Continuous |
|
| 03-Aug-26 08:00 |
30-Oct-26 16:00 |
ALTALINK |
TE |
55s RTU/SCADA (55s Olds) |
adding/testing new alarms & controls associated with the 55s P&C |
2,120 Hours
Daily |
|
| 10-Aug-26 07:30 |
09-Oct-26 17:00 |
ALTALINK |
Outage |
434s T3 (434s East Stony Plain) |
T3 transformer replacement |
1,281.5 Hours
Continuous |
|
| 13-Aug-26 16:31 |
24-Sep-26 17:00 |
ALTALINK |
Outage |
71s T1 (71s Lamoureux) |
bushing issue |
1,008.48 Hours
Continuous |
|
| 20-Aug-26 09:00 |
09-Oct-26 10:00 |
ALTALINK |
Outage |
58s T1 (58s Edson) |
58s T1 transformer replacement and containment install |
1,201 Hours
Continuous |
|
| 31-Aug-26 13:00 |
06-Oct-26 07:30 |
ATCO |
TE |
790s Protection & Control (790s Poplar Hill), 790s RTU/SCADA (790s Poplar Hill) |
wire new breaker 508, 508 feeder protection into the station RTU and 701T protection |
858.5 Hours
Continuous |
|
| 02-Sep-26 07:00 |
21-Oct-26 15:00 |
ALTALINK, TRANSALTA |
Outage |
320p GT3 (320p Keephills) |
maintenance |
1,184 Hours
Continuous |
|
| 08-Sep-26 07:00 |
23-Oct-26 17:00 |
EPCOR |
Outage |
805s T4 (805s Jasper), EP 805s J2405 (EP 805s Jasper), EP 805s J2406 (EP 805s Jasper), EP 805s JAB4 (EP 805s Jasper) |
replacement LCR Jasper J2406/JDS10 |
1,090 Hours
Continuous |
|
| 08-Sep-26 07:00 |
04-Oct-26 17:00 |
EPCOR |
Outage |
72KN23 (Kennedale - Namao) |
UGT oil degasification project |
634 Hours
Continuous |
|
| 08-Sep-26 07:00 |
26-Sep-26 17:00 |
EPCOR |
Outage |
72PM25 (Poundmaker - Meadowlark), T4 (Poundmaker), PM2402 (Poundmaker), PM2403 (Poundmaker), PM721 (Poundmaker), PMDS4 (Poundmaker), M726 (Meadowlark) |
doble Poundmaker TX4 |
130 Hours
Continuous |
|
| 08-Sep-26 07:00 |
18-Dec-26 17:00 |
EPCOR |
TE |
EP 803s Protection & Control (EP 803s Lambton) |
protection blocking, DFR upgrade cutovers and commissioning |
2,435 Hours
Continuous |
|
| 08-Sep-26 08:00 |
13-Nov-26 17:00 |
ALTALINK, REDDEER |
Outage |
464L (87s Gaetz - 209s Timberlands), 209s 464E (209s Timberlands) |
P&C panel replacements, 138 kV bus and line arrestor testing, transformer testing |
1,594 Hours
Continuous |
|
| 08-Sep-26 09:00 |
13-Nov-26 17:00 |
ALTALINK, REDDEER |
Outage |
768L (209s Timberlands - 217s North Red Deer), 209s T1 (209s Timberlands), 217s 768 (217s North Red Deer), 209s 768W (209s Timberlands) |
P&C panel replacements, 138 kV bus and line arrestor testing, transformer testing |
1,593 Hours
Continuous |
|
| 08-Sep-26 09:30 |
05-Oct-26 12:00 |
ATCO |
Outage |
7L170 (875s Algar - 2011s Dawes), 7L38 (875s Algar - 917s Horse River), 875s 701T (875s Algar), 875s 701 (875s Algar), 875s 702 (875s Algar), 875S 701TCS (875s Algar) |
replace 701TCS + SCADA / protection upgrade |
650.5 Hours
Continuous |
|
| 08-Sep-26 09:30 |
05-Oct-26 17:30 |
ATCO |
TE |
875s Protection & Control (875s Algar) |
replace 701TCS and SCADA / protection upgrade
|
656 Hours
Continuous |
|
| 08-Sep-26 09:30 |
05-Oct-26 17:30 |
ATCO |
TE |
917s Protection & Control (917s Horse River) |
replace 701TCS and SCADA / protection upgrade at 875s |
656 Hours
Continuous |
|
| 08-Sep-26 09:30 |
05-Oct-26 17:30 |
ATCO |
TE |
2011s Protection & Control (2011s Dawes) |
replace 701TCS and SCADA / protection upgrade at 875s |
656 Hours
Continuous |
|
| 09-Sep-26 07:00 |
02-Oct-26 17:00 |
EPCOR |
Outage |
72RV6 (EP 511s Victoria - Rossdale), EP 511s Victoria T3 (EP 511s Victoria), EP 511s V724 (EP 511s Victoria), EP 511s V725 (EP 511s Victoria), RV722 (Rossdale), EP 511s V723 (EP 511s Victoria), EP 511s VDS9 (EP 511s Victoria), EP 511s VAB3 (EP 511s Victoria) |
RV6/Victoria: RV6/TX3 Zone, civil works for emergency TX3 replacement |
226 Hours
Continuous |
|
| 12-Sep-26 08:00 |
27-Nov-26 16:00 |
SUNCOR |
Outage |
29EDD-18 29PT-100 (29EDD-18 Firebag) |
replace secondary cables on 29PT-100 |
1,833 Hours
Continuous |
|
| 14-Sep-26 07:00 |
25-Sep-26 17:30 |
ALTALINK |
RB |
747L (37s North Calder - 711L tap), 747L (99s North St. Albert - 711L tap) |
aerial washing program |
274.5 Hours
Continuous |
|
| 14-Sep-26 07:00 |
25-Sep-26 17:00 |
EPCOR |
TE |
72LH8 (EP 803s Lambton - EP Hardisty) |
LH8 - protection blocking for MPLS cutovers and commissioning |
274 Hours
Continuous |
|
| 14-Sep-26 07:00 |
25-Sep-26 17:00 |
EPCOR |
TE |
72CH9 (987s Clover Bar - EP Hardisty) |
CH9 - protection blocking for MPLS cutovers and commissioning |
274 Hours
Continuous |
|
| 14-Sep-26 07:00 |
25-Sep-26 17:00 |
EPCOR |
TE |
72CH11 (987s Clover Bar - EP Hardisty) |
CH11 - protection blocking for MPLS cutovers and commissioning |
274 Hours
Continuous |
|
| 14-Sep-26 07:00 |
25-Sep-26 17:00 |
EPCOR |
TE |
72LS24 (EP 803s Lambton - Strathcona) |
LS24 - protection blocking for MPLS cutovers and commissioning |
274 Hours
Continuous |
|
| 14-Sep-26 07:00 |
25-Sep-26 17:00 |
EPCOR |
TE |
72CN10 (987s Clover Bar - Namao) |
CN10 - protection blocking for MPLS cutovers and commissioning |
274 Hours
Continuous |
|
| 14-Sep-26 07:00 |
25-Sep-26 17:00 |
EPCOR |
TE |
72KN23 (Kennedale - Namao) |
KN23 - protection blocking for MPLS cutovers and commissioning |
274 Hours
Continuous |
|
| 14-Sep-26 08:00 |
27-Sep-26 16:00 |
SUNCOR |
Outage |
29PL6-5 (29EDD-1 Millennium - 29EDD-2 Tar Island), 29EDD-1 29PS-196 (29EDD-1 Millennium), 29PS-44 (29EDD-22), 29EDD-1 29EDD1s1652 (29EDD-1 Millennium), 29EDD-1 29EDD1s1752 (29EDD-1 Millennium) |
29EDD22;29PT-84 and 29PL6-5 system maintenance, 29PT-84 tap changer, 29PS-196 closing concern, 352-1700T racking mech to be adjusted |
320 Hours
Continuous |
|
| 14-Sep-26 08:00 |
17-Dec-26 17:00 |
ATCO |
TE |
738s RTU/SCADA (738s Virginia Hills), 738s Protection & Control (738s Virginia Hills) |
SCADA/protection upgrade at 738s Virginia Hills, cut over to the new SCADA system and tested |
2,266 Hours
Continuous |
|
| 14-Sep-26 08:00 |
07-Oct-26 16:00 |
ALTALINK |
TE |
434s RTU/SCADA (434s Stony Plain) |
RTU database update |
560 Hours
Daily |
|
| 14-Sep-26 08:00 |
02-Oct-26 16:00 |
ALTALINK |
TE |
434s Protection & Control (434s Stony Plain) |
new T3 protections cutover/testing |
440 Hours
Daily |
|
| 14-Sep-26 08:00 |
24-Sep-26 16:00 |
ALTALINK |
TE |
431s RTU/SCADA (431s Hussar) |
migrate all the existing ACC points from the D20 RTU to the new SMP-4260 RTU |
248 Hours
Daily |
|
| 14-Sep-26 09:30 |
25-Sep-26 17:00 |
ALTALINK, EPCOR |
RB |
711L (113s Inland Cement - 747L tap) |
aerial washing program |
271.5 Hours
Continuous |
|
| 14-Sep-26 10:00 |
28-Sep-26 17:30 |
ATCO, ALTALINK |
Outage |
830L (562s Cypress - 840s McNeill Station), 840s 901T (840s McNeill Station), 840s 701T (840s McNeill Station), 840s 701 (840s McNeill Station), 840s 901 (840s McNeill Station), 840s 702C (840s McNeill Station), 840s 703C (840s McNeill Station) |
replace 901T bushings, upgrading and testing |
343.5 Hours
Continuous |
AB-SK |
| 14-Sep-26 10:00 |
28-Sep-26 17:30 |
Saskpower |
IO |
Sask Power S1M Line |
maintenance |
343.5 Hours
Continuous |
AB-SK |
| 14-Sep-26 14:00 |
25-Sep-26 14:00 |
ATCO |
Outage |
930s Syn Condenser (930s Arcenciel), 930s 719 (930s Arcenciel), 930s 702T (930s Arcenciel) |
level 4 service / overhaul by ABB
- DFR replacement |
343.5 Hours
Continuous |
|
| 14-Sep-26 21:53 |
31-Dec-26 23:59 |
NWE |
Outage |
2375 (NWE Marias) |
breaker hydraulic oil pump repeatedly |
2,595.1 Hours
Continuous |
AB-MATL |
| 15-Sep-26 08:00 |
24-Sep-26 17:00 |
ALTALINK, Lethbridge |
Outage |
725AL (618s Riverbend - 725L tap), 725L (674s Bowron - 725AL tap), 725LE (111s Coalbanks - 725AL tap), 618s 725 (618s Riverbend), 111s 725LE (111s Coalbanks), 674s 725E (674s Bowron) |
line outage on 725LE at 674s to replace 674s12 switch and 674sPT5-CVT |
225 Hours
Continuous |
|
| 15-Sep-26 09:00 |
24-Sep-26 17:30 |
ALTALINK, Lethbridge |
IO |
725AL (618s Riverbend - 725L tap), 725L (111s Coalbanks - 725AL tap), 725L (674s Bowron - 725AL tap), 618s 725 (618s Riverbend) |
outage required to replace 674s12 - disconnect switch and 674sPT5-CVT |
224.5 Hours
Continuous |
|
| 15-Sep-26 11:00 |
05-Nov-26 19:00 |
ATCO |
TE |
888s RTU/SCADA (888s Dover) |
RTU updates for 9L74 protection upgrade |
1,233 Hours
Continuous |
|
| 19-Sep-26 07:00 |
27-Sep-26 18:00 |
ALTALINK |
RB |
929L (74S Janet - 287s Hazelwood) |
work on 691L - close vicinity |
203 Hours
Daily |
|
| 19-Sep-26 07:00 |
27-Sep-26 18:00 |
ENMAX, ALTALINK |
RB |
932L (74s Janet - SS-162) |
work on 691L - close vicinity |
203 Hours
Daily |
|
| 19-Sep-26 07:00 |
27-Sep-26 18:00 |
ALTALINK |
RB |
925L (63s Red Deer - 74s Janet) |
work on 691L - close vicinity |
203 Hours
Daily |
|
| 19-Sep-26 07:00 |
27-Sep-26 18:00 |
ALTALINK |
RB |
901L (74s Janet - 901AL tap) |
work on 691L - close vicinity |
203 Hours
Daily |
|
| 19-Sep-26 12:30 |
03-Oct-26 12:00 |
ENMAX |
Outage |
20.82L (SS-20 - SS-21), 20B138-20.82 (SS-20), 21B138-20.82 (SS-21) |
construction 20.82L river crossing |
335.5 Hours
Continuous |
|
| 21-Sep-26 06:00 |
25-Sep-26 19:00 |
ALTALINK |
RB |
610L (83s Taber - 336s Fincastle) |
install temporary understrung line, stringing wire, Fortis 83s15L is understrung on 610L |
109 Hours
Daily |
|
| 21-Sep-26 07:00 |
25-Sep-26 17:00 |
EPCOR |
Outage |
R723 (Rossdale) |
breaker fail and DFR cutovers and commissioning |
106 Hours
Continuous |
|
| 21-Sep-26 07:00 |
28-Sep-26 18:00 |
ALTALINK |
Outage |
691L (74s Janet - 419s Chestermere), 74s 691 (74s Janet), 419s 691 (419s Chestermere) |
line move for structures 4-12 |
179 Hours
Continuous |
|
| 21-Sep-26 07:00 |
02-Oct-26 17:00 |
EPCOR |
TE |
1055L (629s Argyll Transfer Station - 816s Petrolia), 240BA3 (629s Argyll Transfer Station - 814s Bellamy) |
1055L/240BA3 - protection blocking for MPLS cutovers and commissioning |
274 Hours
Continuous |
|
| 21-Sep-26 07:00 |
02-Oct-26 17:00 |
ALTALINK, EPCOR |
TE |
1044L (EP 805s Jasper - 816s Petrolia) |
1044L - - protection blocking for MPLS cutovers and commissioning |
274 Hours
Continuous |
|
| 21-Sep-26 07:00 |
02-Oct-26 17:00 |
EPCOR |
TE |
1098L (EP 805s Jasper - Poundmaker) |
1098L - protection blocking for MPLS cutovers and commissioning |
274 Hours
Continuous |
|
| 21-Sep-26 07:00 |
02-Oct-26 17:00 |
EPCOR |
TE |
1164L (816s Petrolia - EP Riverview) |
1164L - protection blocking for MPLS cutovers and commissioning |
274 Hours
Continuous |
|
| 21-Sep-26 07:00 |
02-Oct-26 17:00 |
ALTALINK, EPCOR |
TE |
1058L (657s Summerside - EP 803s Lambton) |
1058L - protection blocking for MPLS cutovers and commissioning |
274 Hours
Continuous |
|
| 21-Sep-26 07:00 |
24-Sep-26 17:00 |
ALTALINK |
RB |
7L230 (69s North Barrhead - 888AL tap) |
ATCO climbing inspection |
82 Hours
Daily |
|
| 21-Sep-26 07:00 |
25-Sep-26 17:00 |
EPCOR |
TE |
RTU/SCADA (University of Alberta) |
university of Alberta - RTU outage, cutovers and commissioning |
106 Hours
Continuous |
|
| 21-Sep-26 08:00 |
02-Oct-26 16:00 |
Syncrude |
Outage |
221 (Aurora), 222 (Aurora), 34 (Aurora), G21 (Aurora), 33B (Aurora), 34A (Aurora), 89-37 (Aurora), MH2 (Aurora - Aurora) |
zone 3 maintenance |
272 Hours
Continuous |
|
| 21-Sep-26 08:00 |
25-Sep-26 15:00 |
CMH, TCPL |
TE |
MH-65L (MHS-7 Brier Park - Cancarb Energy Medicine Hat) |
carry out maintenance on the LDR-65L-B. |
103 Hours
Continuous |
|
| 21-Sep-26 08:00 |
01-Oct-26 16:00 |
Syncrude |
Outage |
AL-2 (Aurora - D05 Syncrude), D05 512 (D05), D05 511 (D05), 223 (Aurora), 222 (Aurora) |
installing a 260kV power line as a temp bypass for future work and this outage is required to tie in the OPGW running on AL-2 |
248 Hours
Continuous |
|
| 21-Sep-26 08:00 |
04-Oct-26 19:00 |
ATCO |
RB |
13L50 (2029s Heathfield - 2075s Newell) |
installing SVDs from str 1-775, then 975-1387 |
323 Hours
Continuous |
|
| 21-Sep-26 08:00 |
24-Sep-26 16:00 |
ALTALINK |
TE |
185s RTU/SCADA (185s Bretville) |
RTU database update |
80 Hours
Daily |
|
| 21-Sep-26 08:00 |
24-Sep-26 17:00 |
ATCO, ALTALINK |
RB |
7L230 (743s Sarah Lake - 888AL tap) |
walk up and climbing inspection on 7L230 |
81 Hours
Continuous |
|
| 21-Sep-26 08:00 |
24-Sep-26 16:00 |
ALTALINK |
TE |
415s RTU/SCADA (415s Drywood) |
RTU outage for sublan upgrade project - install new rs416 port server, update the subnet of all IEDs at the station |
80 Hours
Daily |
|
| 21-Sep-26 08:00 |
24-Sep-26 16:00 |
ALTALINK |
TE |
415s Protection & Control (415s Drywood), 415s T1 (415s Drywood) |
transformer protection outage to update IP address as part of sublan program |
80 Hours
Daily |
|
| 21-Sep-26 08:00 |
24-Sep-26 18:00 |
ALTALINK, EXPPIPE |
RB |
703BL (329s HRT Express - 703L tap), 703L (213s Hughenden - 703BL tap), 703L (377s AML Hardisty - 703BL tap) |
703L str. 22,27,60,133,142,158 to replace cross arms and insulation |
82 Hours
Daily |
|
| 21-Sep-26 08:00 |
24-Sep-26 16:00 |
ENMAX |
Outage |
2.83L (SS-5 - 2.83L tap) |
relay protection test - 5RLY138-5.Z32, 5.Z33, lockout testing |
80 Hours
Continuous |
|
| 21-Sep-26 08:00 |
24-Sep-26 16:00 |
ALTALINK |
TE |
38s RTU/SCADA (38s East Edmonton) |
RTU outage for telecom upgrades |
80 Hours
Daily |
|
| 21-Sep-26 08:00 |
09-Oct-26 16:00 |
ALTALINK |
TE |
281s RTU/SCADA (281s Johnson) |
SCADA configuration updates involving 417L protection upgrades for 55s P&C major project |
440 Hours
Daily |
|
| 21-Sep-26 08:00 |
24-Sep-26 16:00 |
ENMAX |
TE |
Protection & Control (SS-3) |
zone 31 138 kV bus differential protection, CT terminal replacement commissioning |
80 Hours
Daily |
|
| 21-Sep-26 08:00 |
25-Sep-26 16:00 |
CMH |
Outage |
MH-20L (MHS-3 Southridge - MHS-6 CMH Riverview), MHS-3 MH69-T32 (MHS-3 Southridge), MHS-3 MH69-T33 (MHS-3 South Ridge), MHS-3 MH138-T34 (MHS-3 Southridge), MHS-3 MH69-306 (MHS-3 Southridge), MHS-6 MH138-T63 (MHS-6 Riverview), MHS-3 MH138-317 (MHS-3 Southridge), MHS-6 MH138-620 (MHS-6 CMH Riverview), MHS-3 MH69-302 (MHS-3 Southridge), MHS-3 MH69-314 (MHS-3 Southridge), MHS-3 MH69-316 (MHS-3 Southridge), MHS-6 MH69-611 (MHS-6 CMH Riverview), MHS-3 MH69-304 (MHS-3 Southridge), MHS-3 MH69-313 (MHS-3 Southridge) |
facilitate installation of lightning protection NW-3 and NW-1 at MHS-3S South Ridge substation |
104 Hours
Continuous |
|
| 21-Sep-26 09:00 |
24-Sep-26 17:30 |
ALTALINK |
Outage |
76L (33s Spray - 115s Mount Allan), 33s 76 (33s Spray) |
76L structure 103 and 108 change arm |
80.5 Hours
Continuous |
|
| 21-Sep-26 09:00 |
22-Oct-26 08:00 |
ALTALINK |
Outage |
417L (55s Olds - 281s Johnson), 281s 1152 (281s Johnson), 281s 1252 (281s Johnson), 55s 417 (55S Olds) |
upgrade 417L protections at 281s. |
743 Hours
Continuous |
|
| 21-Sep-26 10:00 |
24-Sep-26 16:00 |
ATCO |
Outage |
888s 906 (888s Dover) |
21B/9L74 relay replacement, cutover breaker and CT to new protection |
78 Hours
Continuous |
|
| 21-Sep-26 10:00 |
24-Sep-26 16:00 |
ATCO |
Outage |
715s 702T (715s Leming Lake) |
transformer maintenance |
78 Hours
Continuous |
|
| 21-Sep-26 10:00 |
25-Sep-26 17:30 |
ALTALINK |
Outage |
730L (197s Bardo - 732L tap), 730L61 (732L tap) |
730L line maintenance
|
103.5 Hours
Continuous |
|
| 21-Sep-26 10:00 |
02-Oct-26 14:00 |
ATCO |
Outage |
706s 701T (706s Irish Creek), 706s 701 (706s Irish Creek) |
breaker, transformer and voltage regulator maintenance |
268 Hours
Continuous |
|
| 21-Sep-26 11:00 |
09-Oct-26 19:00 |
ATCO |
TE |
888s Protection & Control (888s Dover) |
block 21B with new relay and block 9L74 RAS B |
440 Hours
Continuous |
|
| 21-Sep-26 11:30 |
24-Sep-26 17:00 |
ALTALINK |
Outage |
316s 752A (316s West Crossfield), 316s T1 (316s West Crossfield) |
316sT1 oil leak repair SFRA, doble, WRT |
77.5 Hours
Continuous |
|
| 21-Sep-26 12:30 |
24-Sep-26 13:30 |
ALTALINK |
RB |
760L (163s Amoco Empress - 760AL tap) |
installing interphase spacers on 7L760 live line |
73 Hours
Continuous |
|
| 21-Sep-26 13:00 |
24-Sep-26 13:00 |
ATCO |
RB |
7L760 (767s Oyen - 7LC760 tap) |
installing interphase spacers on 7L760 live line |
72 Hours
Continuous |
|
| 21-Sep-26 13:00 |
24-Sep-26 17:00 |
ALTALINK |
Outage |
818s C1 (818s Winefred) |
urgent repair and replacement of C1 "A" protection |
76 Hours
Continuous |
|
| 21-Sep-26 14:30 |
24-Sep-26 17:00 |
ALTALINK |
Outage |
648s T1 (648s Metiskow) |
- VR2 Maintenance and leak repairs, 648s2011 Maintenance, 648s19 switch repair |
74.5 Hours
Continuous |
|
| 21-Sep-26 15:00 |
24-Sep-26 16:00 |
ALTALINK, EPCOR |
RB |
920L (71s Lamoureux - 557s Castle Downs) |
920LE - Altalink work |
73 Hours
Continuous |
|
| 22-Sep-26 07:00 |
28-Sep-26 17:00 |
ALTALINK |
Outage |
233s T1 (233s Beamer) |
customer maintenance |
154 Hours
Continuous |
|
| 22-Sep-26 08:00 |
28-Sep-26 16:00 |
CNRL |
Outage |
842s 75-TR-8701 (842s Horizon Upgrading), 842s 75-TR-5701 (842s Horizon Upgrading), 842s 75-1901 (842s Horizon Upgrading), 842s 75-1905 (842s Horizon Upgrading), 842s 75-1906 (842s Horizon Upgrading), 842s 69-8701 (842s Horizon Upgrading), 842s 69-5701 (842s Horizon Upgrading), 842s 75-1901B (842s Horizon Upgrading), 842s 75-1905B (842s Horizon Upgrading), 842s 75-1906A (842s Horizon Upgrading), 842s 75-1906B (842s Horizon Upgrading), 842s 75-5701 (842s Horizon Upgrading), 842s 75-8701 (842s Horizon Upgrading) |
maintenance of transformer, breakers, disconnects, and protective relays |
152 Hours
Continuous |
|
| 22-Sep-26 08:00 |
01-Oct-26 16:00 |
ATCO, CNRL |
Outage |
838s 75-TR-2801 (838s Horizon Mining), 838s 75-BC-1917 (838s Horizon Mining), 838s 75-BC-1916 (838s Horizon Mining), 838s 75-SD-1917B (838s Horizon Mining), 838s 75-SD-1916A (838s Horizon Mining) |
upgrade 75-RPX-2801B from SEL 387 to SEL 487, transformer, breaker and disconnect testing |
224 Hours
Continuous |
|
| 22-Sep-26 08:00 |
24-Sep-26 16:00 |
ALTALINK |
TE |
818s Winefred RTU/SCADA |
update FW on SMP16 and to add additional component alarms associated with C1 protection replacement |
56 Hours
Daily |
|
| 22-Sep-26 08:00 |
24-Sep-26 17:00 |
ALTALINK |
Outage |
77s T2 (77s Sagitawah), 77s 240kV East Bus (77s Sagitawah), 77s 29 (77s Sagitawah), 77s 40 (77s Sagitawah), 77s 57 (77s Sagitawah) |
transformer maintenance |
57 Hours
Continuous |
|
| 22-Sep-26 08:00 |
24-Sep-26 16:00 |
ALTALINK |
TE |
415s Protection & Control (415s Drywood) |
protection outage to update IP address |
56 Hours
Daily |
|
| 22-Sep-26 08:00 |
24-Sep-26 16:00 |
ALTALINK |
TE |
415s Protection & Control (415s Drywood) |
protection outage to update ip address.T2 B protection, B87/T2 SEL-351A |
56 Hours
Daily |
|
| 22-Sep-26 08:00 |
24-Sep-26 16:00 |
ALTALINK |
TE |
415s Protection & Control (415s Drywood) |
protection outage to update ip adresses |
56 Hours
Daily |
|
| 22-Sep-26 08:00 |
24-Sep-26 16:00 |
ALTALINK |
TE |
415s Protection & Control (415s Drywood) |
protection outage to update ip address, Ge c60 breaker control module |
56 Hours
Daily |
|
| 22-Sep-26 08:00 |
24-Sep-26 16:00 |
ALTALINK |
TE |
415s Protection & Control (415s Drywood) |
protection outage to update ip address |
56 Hours
Daily |
|
| 22-Sep-26 08:00 |
24-Sep-26 16:00 |
ALTALINK |
TE |
415s Protection & Control (415s Drywood) |
protection outage to update ip adresses |
56 Hours
Daily |
|
| 22-Sep-26 08:00 |
24-Sep-26 16:00 |
ATCO |
TE |
930s RTU/SCADA (930s Arcenciel) |
930S Arcenciel synchronous condenser DFR upgrade |
56 Hours
Continuous |
|
| 22-Sep-26 09:00 |
19-Oct-26 17:00 |
ATCO |
TE |
743s Protection & Control (743s Sarah Lake) |
CSP needed for 86-94/700BS1 to test protection logic for breaker 702 |
656 Hours
Continuous |
|
| 22-Sep-26 09:00 |
19-Oct-26 17:00 |
ATCO |
TE |
743s Protection & Control (743s Sarah Lake) |
21B/7L67 relay testing and wiring |
656 Hours
Continuous |
|
| 22-Sep-26 09:00 |
19-Oct-26 17:00 |
ATCO |
TE |
743s Protection & Control (743s Sarah Lake) |
50BF/702 relay testing and wiring |
656 Hours
Continuous |
|
| 22-Sep-26 10:00 |
28-Sep-26 14:00 |
ATCO |
Outage |
739s 702T (739s Edith Lake) |
replace and upgrade - oil containment, cable tray, ground rods, and insulating gravel |
148 Hours
Continuous |
|
| 22-Sep-26 17:45 |
30-Sep-26 00:00 |
SUNCOR |
Outage |
29PL6-7 (30EDD-1 - 29EDD-5) |
29PL6-7 (30EDD-1 - 29EDD-5) forced outage |
174.25 Hours
Continuous |
|
| 23-Sep-26 08:00 |
25-Sep-26 18:00 |
ATCO |
Outage |
806s 701T (806s Oldman River), 806s 152 (806s Oldman River), 806S 52-1 (806s Oldman River), 806S 52-2 (806s Oldman River), 806S 89AS (806s Oldman River) |
maintenance |
34 Hours
Continuous |
|
| 23-Sep-26 08:00 |
24-Sep-26 17:00 |
ALTALINK |
TE |
83s Protection & Control (83s Taber) |
test trips to new 83s263E |
33 Hours
Daily |
|
| 23-Sep-26 08:00 |
09-Oct-26 17:00 |
ATCO |
RB |
12L44 (939s Livock - 951s Thickwood Hills) |
installing replacement corona rings on 12L44 due to failure, replacement warranty |
393 Hours
Continuous |
|
| 23-Sep-26 08:00 |
24-Sep-26 16:00 |
ENMAX |
Outage |
3.4TR (SS-3) |
3.4TR CT terminal block replacement |
32 Hours
Continuous |
|
| 23-Sep-26 08:00 |
24-Sep-26 16:00 |
ALTALINK |
TE |
AltaLink Telecom Equipment |
ATCO UPS replacement |
32 Hours
Continuous |
|
| 23-Sep-26 08:00 |
24-Sep-26 16:00 |
ALTALINK |
TE |
AltaLink Telecom Equipment |
assist with ATCO's planned UPS replacement work of AltaLink telecom equipment |
32 Hours
Daily |
|
| 23-Sep-26 09:00 |
24-Sep-26 16:00 |
ATCO |
Outage |
848s 605 (848s Ruth Lake) |
breaker maintenance |
31 Hours
Continuous |
|
| 23-Sep-26 12:00 |
19-Oct-26 11:00 |
ATCO |
Outage |
7L67 (743s Sarah Lake - 824s Fieldgate), 743s 702 (743s Sarah Lake), 743s 702A (743s Sarah Lake) |
743S Sarah lake rebuild. replace bkr 702, gang switches 702A, 7L67D2 |
623 Hours
Continuous |
|
| 23-Sep-26 12:00 |
26-Sep-26 17:00 |
ATCO, ALTALINK |
Outage |
12L41 (510s Sunnybrook - 939s Livock), 510s R3 (510s Sunnybrook), 510s 2952 (510s Sunnybrook), 510s 2852 (510s Sunnybrook), 510s 7689 (510s Sunnybrook), 510s 1241 (510s Sunnybrook), 510s 46 (510s Sunnybrook), 510s 48 (510s Sunnybrook) |
reactor maintenance, LA replacement |
75 Hours
Continuous |
|
| 23-Sep-26 12:00 |
26-Sep-26 17:00 |
ATCO, ALTALINK |
IO |
12L41 (510s Sunnybrook - 939s Livock) |
AltaLink is planning work at 510s Sunnybrook and require a recloser block from ATCO on 1241L. |
77 Hours
Continuous |
|
| 24-Sep-26 08:00 |
05-Oct-26 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), 29EDD-63 91-152-500201 (29EDD-63), 29EDD-18 29-752-105 (29EDD-18 Firebag), 29EDD-18 29-752-104 (29EDD-18 Firebag) |
replace air bladder and 29PT-179 T60 replacement |
346 Hours
Continuous |
|
| 24-Sep-26 08:00 |
24-Sep-26 18:00 |
ENMAX |
Outage |
11.81L (SS-11 - SS-13), 11.4TR (SS-11), 11.1TR (SS-11), 11B138-11.81 (SS-11), 11B138-BT5 (SS-11), SW83 (SS-11) |
fall substation washing |
10 Hours
Continuous |
|
| 24-Sep-26 08:00 |
24-Sep-26 16:00 |
ATCO |
RB |
7L128 (963s Coyote Lake - 7LA128 tap), 7L128 (802s Michichi Creek - 7LA128 tap) |
deficiency repair on 7L128 structures 182 and 183 |
28 Hours
Continuous |
|
| 24-Sep-26 08:00 |
24-Sep-26 16:00 |
ALTALINK |
TE |
312s Protection & Control (312s Fidler) |
312s revert settings back to their original settings on the lines listed - 893L (L9) line prot, 893L (L9) line prot |
8 Hours
Continuous |
|
| 24-Sep-26 08:00 |
24-Sep-26 16:00 |
ALTALINK, WINDYPWPL |
TE |
112s Protection & Control (112s Windy Point) |
protection outage to revert settings back to original settings |
8 Hours
Continuous |
|
| 24-Sep-26 08:00 |
24-Sep-26 16:00 |
ENMAX |
TE |
Protection & Control (SS-5) |
5 sub zone 33 138 kV bus differential protection outage |
8 Hours
Continuous |
|
| 24-Sep-26 08:00 |
24-Sep-26 17:00 |
ALTALINK |
TE |
288s RTU/SCADA (288s Wolf Creek), AltaLink Telecom Equipment |
MPLS node maintenance |
9 Hours
Daily |
|
| 24-Sep-26 08:00 |
25-Sep-26 16:00 |
ALTALINK |
TE |
AltaLink Telecom Equipment, 510s RTU/SCADA (510s Sunnybrook) |
MPLS maintenance and upgrade |
32 Hours
Daily |
|
| 24-Sep-26 08:00 |
24-Sep-26 16:00 |
ALTALINK |
TE |
312s Protection & Control (312s Fidler) |
revert line settings changes back to original settings |
8 Hours
Continuous |
|
| 24-Sep-26 09:00 |
24-Sep-26 16:00 |
BCH, BPA |
Outage |
5L52 (BPA Custer - BCH Ingledow) |
end to end trip checks, BC Maintenance does not affect the Alberta ATC |
7 Hours
Continuous |
AB-BC |
| 24-Sep-26 09:00 |
24-Sep-26 16:00 |
ATCO |
TE |
869s RTU/SCADA (869s Seal Lake), ATCO Telecom Equipment |
7750-2 integration, swapping site networking to VPLS 11 |
7 Hours
Continuous |
|
| 24-Sep-26 09:00 |
24-Sep-26 14:00 |
Saskpower |
Outage |
Sask Power AS905 |
maintenance |
5 Hours
Continuous |
AB-SK |
| 24-Sep-26 10:00 |
24-Sep-26 16:00 |
ATCO |
TE |
ATCO Telecom Equipment, 823s RTU/SCADA (823s Wapiti), 869s Seal Lake |
7750-2 integration, swapping site networking to VPLS 11 |
6 Hours
Continuous |
|
| 25-Sep-26 07:00 |
25-Sep-26 19:00 |
ALTALINK |
Outage |
455L (149s Nisku - 289s Saunders Lake), 149s 138kV North Bus (149s Nisku), 149s T1 (149s Nisku), 149s C1 (149s Nisku), 149s 455 (149s Nisku), 149s 3 (149s Nisku), 149s 1 (149s Nisku) |
cut existing T1 |
12 Hours
Continuous |
|
| 25-Sep-26 08:00 |
25-Sep-26 12:00 |
ENMAX |
Outage |
13.82L (SS-13 - SS-22), 22.3TR (SS-22), 22.1TR (SS-22), 22B138-22BT8 (SS-22), 22B138-13.82 (SS-22), 22MD138-22.1TR (SS-22), 22MD138-22.3TR (SS-22), SW83 (SS-22), SW84 (SS-22) |
substation washing |
4 Hours
Continuous |
|
| 25-Sep-26 08:00 |
25-Sep-26 16:00 |
ATCO |
RB |
7L80 (733s Simonette - 857s Kakwa Ridge), 7L80 (740s H.R. Milner - 857s Kakwa Ridge) |
high load hot lift required |
8 Hours
Continuous |
|
| 25-Sep-26 08:00 |
05-Oct-26 16:00 |
ALTALINK |
TE |
149s RTU/SCADA (149s Nisku) |
add new transformer alarms for T1 (TX 18363) |
248 Hours
Daily |
|
| 25-Sep-26 10:00 |
28-Sep-26 16:00 |
ATCO |
Outage |
888s 905 (888s Dover) |
relay replacement |
78 Hours
Continuous |
|
| 25-Sep-26 12:01 |
25-Sep-26 18:00 |
ENMAX |
Outage |
22.81L (SS-22 - SS-39), 22.2TR (SS-22), 22B138-22BT8 (SS-22) |
fall substation washing |
5.98 Hours
Continuous |
|
| 25-Sep-26 17:00 |
05-Oct-26 06:00 |
ALTALINK |
Outage |
149s T1 (149s Nisku) |
move s1, s11, s22 to new T1 location |
159 Hours
Continuous |
|
| 26-Sep-26 07:00 |
28-Sep-26 18:00 |
ALTALINK |
Outage |
730L (285s East Camrose - 732L tap), 285s 730N (285s East Camrose) |
730L line maintenance |
59 Hours
Continuous |
|
| 26-Sep-26 08:00 |
08-Oct-26 17:00 |
ATCO |
TE |
888s Protection & Control (888s Dover) |
tie in single phase PT voltage from 9L09PTX2 into new 21B/9L74, block 21A/9L09 before performing the injection |
297 Hours
Continuous |
|
| 26-Sep-26 08:00 |
27-Sep-26 17:00 |
ATCO |
TE |
888s Protection & Control (888s Dover) |
tie in single phase PT voltage from 900PT2X1 into new 21B/9L74, block relays before performing the injection |
33 Hours
Continuous |
|
| 26-Sep-26 09:00 |
08-Oct-26 16:00 |
ATCO |
Outage |
7L90 (813s Little Smoky - 7LA90 tap) |
7L90 pole replacement |
295 Hours
Continuous |
|
| 26-Sep-26 09:00 |
26-Sep-26 17:00 |
EPCOR |
TE |
RTU/SCADA (Rossdale) |
communications outage - SCADA MPLS work
|
8 Hours
Continuous |
|
| 26-Sep-26 09:00 |
27-Sep-26 17:00 |
ATCO |
TE |
888s Protection & Control (888s Dover) |
tie in signals from new 21B/9L74 relay to both A & B reactor protections |
32 Hours
Continuous |
|
| 28-Sep-26 06:00 |
02-Oct-26 19:00 |
ALTALINK |
RB |
610L (83s Taber - 336s Fincastle) |
install temporary understrung line, stringing wire, Fortis 83s15L is understrung on 610L |
109 Hours
Daily |
|
| 28-Sep-26 07:00 |
28-Sep-26 17:00 |
ALTALINK, EPCOR |
RB |
930L (37s North Calder - Poundmaker) |
aerial washing program |
10 Hours
Continuous |
|
| 28-Sep-26 07:00 |
28-Sep-26 17:00 |
ALTALINK, EPCOR |
RB |
930L (37s North Calder - Poundmaker) |
aerial washing program |
9.5 Hours
Daily |
|
| 28-Sep-26 07:00 |
08-Oct-26 17:00 |
ALTALINK |
Outage |
1325L (510s Sunnybrook - AML 511s Crossings), 510s 2652 (510s Sunnybrook), 510s 2752 (510s Sunnybrook), AML 511s 4852 (AML 511s Crossings), AML 511s 4952 (AML 511s Crossings) |
annual valve hall maintenance, prc tx maintenance, doble testing of the transformers, prc relay maintenance, annual yard inspections, tdc settings changes, vcs maintenance |
250 Hours
Continuous |
|
| 28-Sep-26 07:00 |
02-Oct-26 17:00 |
EPCOR |
Outage |
R724 (Rossdale) |
Rossdale - R724, breaker fail and DFR cutovers and commissioning |
106 Hours
Continuous |
|
| 28-Sep-26 07:00 |
02-Oct-26 17:00 |
EPCOR |
Outage |
T2 (EP Riverview) |
Riverview - TX2 emergency conservator repair |
106 Hours
Continuous |
|
| 28-Sep-26 07:00 |
28-Sep-26 17:00 |
EPCOR |
Outage |
987s CCP7214 (987s Clover Bar) |
Cloverbar - CCP7214, bus differential upgrade cutovers |
10 Hours
Continuous |
|
| 28-Sep-26 08:00 |
28-Sep-26 12:00 |
Lethbridge, ALTALINK |
Outage |
674s 1 (674s Bowron), 725LW (674s Bowron - 725BL tap) |
Line outage required on 725LW at 674s to rOutage to Create Open Point “A” at structure #1 |
416 Hours
Continuous |
|
| 28-Sep-26 08:00 |
01-Oct-26 16:00 |
ATCO |
Outage |
7L44 (749s Flyingshot Lake - 845s Big Mountain) |
changing str 71,72,73 and 74 for high load move line raise |
80 Hours
Continuous |
|
| 28-Sep-26 08:00 |
30-Sep-26 18:00 |
ENMAX |
Outage |
33.2TR (SS-33) |
33 sub 33.2TR dev 90 replacement |
58 Hours
Continuous |
|
| 28-Sep-26 08:00 |
29-Sep-26 16:00 |
ALTALINK |
TE |
89s Protection & Control (89s Ellerslie) |
PRC maintenance on A &B 240B1, A 240B2, A 500B1, A 500B2, A, B & S T1 and T2 protections |
32 Hours
Continuous |
|
| 28-Sep-26 08:00 |
29-Sep-26 16:00 |
ENMAX |
Outage |
31.84L (SS-31 - SS-32), 32.3TR (SS-32), 32B138-32BT5 (SS-32), 32B138-31.84 (SS-32), 31B138-31.84 (SS-31), 32MD138-32.3TR (SS-32) |
HV SW maintenance SW81, SW82, SW90, MD-32.3TR |
32 Hours
Continuous |
|
| 28-Sep-26 09:00 |
29-Sep-26 16:00 |
ATCO |
Outage |
848s 606 (848s Ruth Lake) |
breaker maintenance |
31 Hours
Continuous |
|
| 28-Sep-26 09:00 |
29-Sep-26 17:00 |
ATCO |
TE |
ATCO Telecom Equipment |
replacement of SAR A SDI cards, slot 1.3, 1.4
|
32 Hours
Continuous |
|
| 28-Sep-26 09:00 |
29-Sep-26 17:30 |
ALTALINK |
Outage |
452L (367s Harry Smith - 434s Stony Plain), 434s 452 (434s Stony Plain) |
transmission line maintenance |
32.5 Hours
Continuous |
|
| 28-Sep-26 10:00 |
07-Oct-26 17:30 |
ATCO |
TE |
2075s Protection & Control (2075s Newell) |
20DL02.06+R1-F871 (9L1088) relay firmware upgrade |
223.5 Hours
Continuous |
|
| 28-Sep-26 10:00 |
02-Oct-26 17:30 |
ATCO |
Outage |
2029s ACF22 (2029s Heathfield) |
PRC-005 - trip coil testing, maintenance of breaker 1223 |
103.5 Hours
Continuous |
|
| 28-Sep-26 10:00 |
29-Sep-26 17:30 |
ALTALINK |
Outage |
927L (102s Langdon - 356s Milo) |
urgent 927L str. span 205-206. splice conductor and install patch rod to damaged conductors, install IP's in span 205-206 |
31.5 Hours
Continuous |
|
| 28-Sep-26 10:00 |
02-Oct-26 16:00 |
ATCO |
Outage |
749s 702T (749s Flyingshot Lake) |
749S 702T leak severity - 25 KV turrets leak repair |
102 Hours
Continuous |
|
| 28-Sep-26 10:00 |
29-Sep-26 17:30 |
ALTALINK |
RB |
924L (102s Langdon - 356s Milo) |
proximity clearance - 927L line maintenance |
31.5 Hours
Daily |
|
| 28-Sep-26 10:15 |
29-Sep-26 17:30 |
ALTALINK |
Outage |
636L (420s Broadmoor - 746s Sherwood Park) |
transmission line maintenance |
31.25 Hours
Continuous |
|
| 28-Sep-26 11:00 |
28-Sep-26 17:00 |
ALTALINK, TRANSALTA, Lethbridge |
Outage |
15s 725 (15s Fort Macleod), 725BL (240s McBride Lake - 725L tap), 725L (15s Fort MacLeod - 725BL tap), 725L (674s Bowron - 725BL tap) |
Outage required to create open point 'A' on 725L to keep 240s online |
6 Hours
Daily |
|
| 28-Sep-26 11:00 |
09-Oct-26 17:00 |
ATCO |
TE |
960s Protection & Control (960s Birchwood Creek) |
change setting on 21B/9L74 for Armistead substation |
270 Hours
Continuous |
|
| 28-Sep-26 11:00 |
30-Oct-26 19:00 |
ATCO |
TE |
960s RTU/SCADA (960s Birchwood Creek) |
updates to RTU for 9L74 |
776 Hours
Continuous |
|
| 28-Sep-26 12:00 |
28-Sep-26 14:00 |
ATCO |
Outage |
7L59 (789s Keg River - 7L59 tap) |
PRC trip coil testing |
31 Hours
Continuous |
|
| 28-Sep-26 12:00 |
28-Sep-26 17:00 |
ALTALINK |
Outage |
63s 25 (63s Red Deer), 63s T2 (63s Red Deer) |
63sT2 Monitor Warning sensor investigation. |
5 Hours
Continuous |
|
| 28-Sep-26 12:00 |
28-Sep-26 16:00 |
ALTALINK |
TE |
186s Protection & Control (186s Dry Creek) |
through fault settings changes on T1 A and T2 A, relay maintenance |
4 Hours
Continuous |
|
| 28-Sep-26 12:00 |
28-Sep-26 16:00 |
ALTALINK |
TE |
64s Protection & Control (64s East Crossfield) |
64s through fault monitoring settings change on T3 A protection |
4 Hours
Continuous |
|
| 28-Sep-26 12:00 |
28-Sep-26 16:00 |
ALTALINK |
TE |
135s Protection & Control (135s Conrad) |
through fault settings change on T1 A and T2 A protections, standard relay maintenance on 27/Bat |
4 Hours
Continuous |
|
| 28-Sep-26 12:00 |
28-Sep-26 16:00 |
ALTALINK |
TE |
17s Protection & Control (17s Benalto) |
PRC settings change on 926L A & B protections, standard maintenance on T1 A & B protections |
4 Hours
Continuous |
|
| 28-Sep-26 12:00 |
28-Sep-26 16:00 |
ALTALINK |
TE |
AltaLink Telecom Equipment |
perform standard radio maintenance |
4 Hours
Daily |
|
| 28-Sep-26 12:00 |
15-Oct-26 12:00 |
Lethbridge, ALTALINK |
Outage |
674s 1 (674s Bowron), 725L (674s Bowron - 725BL tap) |
OE Outage on 725lw required to replace 674s1-Disconnect Switch, 674sPT4-CVT, 674sPTB2-3phase CVT's |
408 Hours
Continuous |
|
| 28-Sep-26 12:30 |
28-Sep-26 17:30 |
ALTALINK |
RB |
760L (163s Amoco Empress - 760AL tap) |
installing interphase spacers on 7L760 - live line work |
5 Hours
Daily |
|
| 28-Sep-26 13:00 |
28-Sep-26 17:00 |
ATCO |
RB |
7L760 (767s Oyen - 7LC760 tap) |
installing interphase spacers on 7L760 - live line work |
4 Hours
Continuous |
|
| 28-Sep-26 16:35 |
15-Oct-26 13:55 |
ALTALINK, Lethbridge |
Outage |
725L (674s Bowron - 725BL tap) |
Lethbridge outage required to replace 674s1-Disconnect Switch, 674sPT4-CVT, 674sPTB2-3phase CVT's, new screw piles and structure for 674sPTB2-CVT's |
405.33 Hours
Continuous |
|
| 29-Sep-26 07:00 |
29-Sep-26 17:00 |
ALTALINK, EPCOR |
RB |
1058L (657s Summerside - EP 803s Lambton) |
1058L - switching school recloser block training |
10 Hours
Continuous |
|
| 29-Sep-26 07:15 |
29-Sep-26 18:00 |
ALTALINK, ATCO |
Outage |
650s 852 (650s Hansman Lake), 650s 952 (650s Hansman Lake), 948L (650s Hansman Lake - 863s Paintearth) |
transmission line maintenance |
10.75 Hours
Daily |
|
| 29-Sep-26 07:15 |
29-Sep-26 18:00 |
ATCO, ALTALINK |
IO |
9L948 (650s Hansman Lake - 863s Paintearth) |
ALtaLink Scope
transmission line maintenance |
10.75 Hours
Continuous |
|
| 29-Sep-26 08:00 |
29-Sep-26 16:00 |
ALTALINK |
TE |
AltaLink Telecom Equipment |
split the existing SCADA VLAN from 1 to 1 and 2 |
8 Hours
Continuous |
|
| 29-Sep-26 08:00 |
30-Sep-26 17:00 |
ATCO |
Outage |
7L760 (7LA760 tap - 7LC760 tap) |
Outage required to install interphase spacers, and aerial marker cones over pipeline crossing. |
33 Hours
Continuous |
|
| 29-Sep-26 08:00 |
29-Sep-26 17:30 |
ENMAX, ALTALINK |
Outage |
1109L (SS-25 - SS-65) |
structure 15 top phase conductor Repair |
9.5 Hours
Daily |
|
| 29-Sep-26 08:00 |
29-Sep-26 17:30 |
ENMAX, ALTALINK |
IO |
1109L (SS-25 - SS-65) |
repair the top phase on Structure #15 |
9.5 Hours
Continuous |
|
| 29-Sep-26 08:00 |
29-Sep-26 16:00 |
ALTALINK |
TE |
AltaLink Telecom Equipment |
resolve errors on radio by replacing components |
8 Hours
Daily |
|
| 29-Sep-26 08:00 |
29-Sep-26 16:00 |
ALTALINK |
TE |
AltaLink Telecom Equipment |
investigate low receive level on fiber, replace components or clean active path to resolve. |
8 Hours
Daily |
|
| 29-Sep-26 08:00 |
05-Oct-26 16:00 |
ATCO |
RB |
7L12 (780s Lubicon - 7LA12 tap), 7L12 (834s Wesley Creek - 7LA12 tap) |
installing openers on 7l12 for switch replacement |
152 Hours
Continuous |
|
| 29-Sep-26 08:00 |
29-Sep-26 17:00 |
ALTALINK |
TE |
48s Protection & Control (48s Pocaterra) |
Blocking 887L Ras transfer trip for BC hydro to facilitate testing for 1L274 DTT, protections are non-redundant |
9 Hours
Continuous |
|
| 29-Sep-26 08:00 |
29-Sep-26 16:00 |
ALTALINK |
TE |
310p Protection & Control (310p Sundance) |
PRC settings change on the 926L A7B and 922L A&B protections |
8 Hours
Continuous |
|
| 29-Sep-26 08:00 |
05-Oct-26 16:00 |
ATCO |
TE |
743s Protection & Control (743s Sarah Lake) |
50BF/603 for settings changes and relay testing |
152 Hours
Continuous |
|
| 29-Sep-26 08:00 |
29-Sep-26 16:00 |
ALTALINK |
TE |
310p Protection & Control (310p Sundance) |
PRC maintenance on 974L A & B and 973L A & B protections |
8 Hours
Continuous |
|
| 29-Sep-26 08:00 |
29-Sep-26 16:00 |
ALTALINK |
TE |
225s Protection & Control (225s Magrath), 618s Protection & Control (618s Riverbend) |
MPLS maintenance |
8 Hours
Continuous |
|
| 29-Sep-26 08:00 |
05-Oct-26 16:00 |
ATCO |
TE |
743s Protection & Control (743s Sarah Lake) |
21B/7L230 for some minor settings changes |
152 Hours
Continuous |
|
| 29-Sep-26 08:00 |
29-Sep-26 16:00 |
ALTALINK |
TE |
379s RTU/SCADA (379s Shell Canada Waterton) |
RTU supervisory outage with power cycle of radio comms to 415s drywood after IP change |
8 Hours
Continuous |
|
| 29-Sep-26 08:00 |
29-Sep-26 16:00 |
ALTALINK |
TE |
415s RTU/SCADA (415s Drywood) |
power cycle Aprisa radio at 415 Drywood if IP changes do not push through |
8 Hours
Continuous |
|
| 29-Sep-26 08:30 |
29-Sep-26 17:00 |
ENMAX, ALTALINK |
RB |
1080L (SS-25 - SS-65) |
1080L proximity R/B for 1109L conductor repair |
8.5 Hours
Continuous |
|
| 29-Sep-26 08:30 |
29-Sep-26 17:30 |
ENMAX, ALTALINK |
RB |
1080L (SS-25 - SS-65) |
Altalink recloser block - close proximity on 1109L conductor repair |
9 Hours
Continuous |
|
| 29-Sep-26 09:00 |
29-Sep-26 11:00 |
ATCO |
TE |
ATCO Telecom Equipment |
UPGRADING THE 'A' SAR's AT WINTERING HILLS TOWER AND DRUMHELLER TOWER
Switch OFF the recloser for 7L85 and 7L128 for the duration of the outage to prevent line out-of-sync closing |
2 Hours
Continuous |
|
| 29-Sep-26 09:00 |
30-Sep-26 16:00 |
ATCO |
TE |
ATCO Telecom Equipment |
capacity and reliability upgrades, changing radio through put from 150Mbps to 300+ on link Ipiatik to Touchwood |
31 Hours
Continuous |
|
| 29-Sep-26 09:00 |
29-Sep-26 11:00 |
ATCO |
RB |
7L85 (804s Wintering Hills - 7LA85 tap), 7L85 (801s Anderson - ATC 803s Bullpound), 7L85 (803s ATC Bullpound - 7LA85 tap), 7L128 (802s Michichi Creek - 7LA128 tap), 7L128 (963s Coyote Lake - 7LA128 tap) |
reclosing blocked on 7L85 and 7L128 for telecom work 1-00530665 |
2 Hours
Continuous |
|
| 29-Sep-26 09:00 |
01-Oct-26 20:00 |
SUNCOR |
TE |
29EDD-34 RTU/SCADA (29EDD-34) |
29EDD-34 - test low voltage 225A breakers, isolations affecting chargers DFR, HVAC, lighting, breaker heaters and firewall |
59 Hours
Continuous |
|
| 29-Sep-26 09:00 |
29-Sep-26 16:00 |
ALTALINK, BCH |
IO |
887L (48s Pocaterra - 978s BCH Britt Creek) |
BC Hydro to test 1L274 DTT RAS |
7 Hours
Continuous |
AB-BC |
| 29-Sep-26 09:00 |
29-Sep-26 16:00 |
ALTALINK, BCH |
Outage |
1L274 (48s Pocaterra - 978s BCH Britt Creek) |
BC Hydro to test 1L274 DTT RAS |
7 Hours
Continuous |
AB-BC |
| 29-Sep-26 10:00 |
01-Oct-26 14:00 |
ATCO |
Outage |
7L64 (779s Chinchaga River - 789s Keg River), 789s 701 (789s Keg River) |
PRC trip coil testing BKR 701 at Keg River |
31 Hours
Continuous |
|
| 29-Sep-26 10:00 |
30-Sep-26 16:00 |
ATCO |
Outage |
700s 702 (700s Bonnyville), 7L53 (700s Bonnyville - 7LA53 tap) |
breaker maintenance |
30 Hours
Continuous |
|
| 29-Sep-26 10:00 |
01-Oct-26 14:00 |
ATCO |
TE |
789s Protection & Control (789s Keg River) |
settings change |
31 Hours
Continuous |
|
| 29-Sep-26 10:00 |
29-Sep-26 14:00 |
ALTALINK |
TE |
137s RTU/SCADA (137s Sedgewick), 197s RTU/SCADA (197s Bardo), 213s RTU/SCADA (213s Hughenden), 221s RTU/SCADA (221s Sunken Lake), 223s RTU/SCADA (223s Strome), 252s RTU/SCADA (252s Jarrow), 267s RTU/SCADA (267s Killarney Lake), 277s RTU/SCADA (277s Hayter), 285s RTU/SCADA (285s East Camrose), 296s RTU/SCADA (296s Rosyth), 299s RTU/SCADA (299s Kingman), 301s RTU/SCADA (301s Queensland), 377s RTU/SCADA (377s AML Hardisty), 395s RTU/SCADA (395s North Holden), 478s RTU/SCADA (478s Tucuman), 508s RTU/SCADA (508s Lakesend), 526s RTU/SCADA (526s Buffalo Creek), 542s RTU/SCADA (542s Ervick), 545s RTU/SCADA (545s Provost), 574s RTU/SCADA (574s Nilrem), 648s RTU/SCADA (648s Metiskow), 650s RTU/SCADA (650s Hansman Lake), 899s RTU/SCADA (899s Edgerton), AltaLink Telecom Equipment |
Radio repair. 174L BF OOS 4 hours. AIS77 OOS. Loss of 574s, 296s, 478s, 545s, 252s, 299s, 542s, 301s, 197s, 285s, 377s, 137s, 395s, 223s, 277s, 267s, 508s, 648s, 650s, 221s, 213s, 899s, 526s visibility during outage. |
4 Hours
Daily |
|
| 30-Sep-26 08:00 |
30-Sep-26 17:00 |
ALTALINK |
TE |
AltaLink Telecom Equipment |
telecom firewall upgrade, MPLS node upgrade |
9 Hours
Daily |
|
| 30-Sep-26 08:00 |
30-Sep-26 22:00 |
ATCO |
TE |
ATCO Telecom Equipment, 939s RTU/SCADA (939s Livock), 951s RTU/SCADA (951s Thickwood Hills) |
Thickwood Hills_S-Telecom/Livock_T-Telecom- upgrade firewalls
|
14 Hours
Continuous |
|
| 30-Sep-26 09:00 |
30-Sep-26 16:00 |
ATCO |
Outage |
848s 607 (848s Ruth Lake) |
breaker maintenance |
7 Hours
Continuous |
|
| 30-Sep-26 09:00 |
30-Sep-26 17:00 |
ALTALINK, BCH |
Outage |
1L274 (48s Pocaterra - 978s BCH Britt Creek) |
FRO Maintenance |
8 Hours
Continuous |
AB-BC |
| 30-Sep-26 09:00 |
09-Oct-26 20:00 |
SUNCOR |
TE |
Suncor RTU/SCADA (Suncor) |
cleaning, inspection and repair of transformer 65PT-4, and MCCs - 65PC3, 65PC4, 65PC6 |
227 Hours
Continuous |
|
| 01-Oct-26 06:00 |
06-Oct-26 18:00 |
SUNCOR |
Outage |
635EDD-1001 635PT-1039 (635EDD-1001), 635EDD-1001 635-752-623 (635EDD-1001) |
Fort Hills: MP14 (Bottom) - Planned maintenance of 144kV equipment in 635EDD-1001 Diameter 2 bottom. |
132 Hours
Continuous |
|
| 01-Oct-26 07:30 |
04-Oct-26 16:30 |
ATCO, ALTALINK |
RB |
701L (223s Strome - 7LA701 tap) |
installing aerial marker on 7L701 at str spans 42 and 43 |
81 Hours
Continuous |
|
| 01-Oct-26 08:00 |
05-Oct-26 16:00 |
SUNCOR |
TE |
29EDD-2 29PT-3 (29EDD-2 Tar Island) |
300495274, 29PT-2 /3/84 AVR settings, implement settings |
104 Hours
Continuous |
|
| 01-Oct-26 08:00 |
01-Oct-26 18:00 |
ALTALINK |
RB |
945L (275s Jenner - 562s Cypress) |
945L - proximity RB for work on 1002L str 67
|
10 Hours
Daily |
|
| 01-Oct-26 08:00 |
01-Oct-26 18:00 |
ALTALINK |
Outage |
1002L (163s Amoco Empress - 275s Jenner) |
1002L - Replace top phase spacer on STR67
|
10 Hours
Daily |
|
| 01-Oct-26 08:00 |
04-Oct-26 16:00 |
ATCO |
RB |
7L701 (757s Battle River - 7LA701 tap) |
installing aerial marker on 7L701 at str spans 42 and 43 |
80 Hours
Continuous |
|
| 01-Oct-26 08:00 |
02-Oct-26 16:00 |
ENMAX |
Outage |
40.2TR (SS-40) |
40.2TR CT terminal block replacement |
32 Hours
Continuous |
|
| 01-Oct-26 08:00 |
02-Oct-26 16:00 |
ENMAX |
TE |
Protection & Control (SS-40) |
40 sub Zone 31 138kV Bus differential protection outage. Fault clearing time 26.5cycles. 40.2TR CT Terminal Block Replacement |
32 Hours
Continuous |
|
| 01-Oct-26 08:00 |
02-Oct-26 16:00 |
ENMAX |
Outage |
41.1C (SS-41) |
Capacitor Bank Maintenance - 41.1CAPBANK |
32 Hours
Continuous |
|
| 01-Oct-26 08:00 |
02-Oct-26 16:00 |
ALTALINK |
TE |
510s RTU/SCADA (510s Sunnybrook), AltaLink Telecom Equipment |
510s telecom equipment maintenance
|
32 Hours
Daily |
|
| 01-Oct-26 08:00 |
01-Oct-26 18:00 |
ENMAX |
Outage |
2.82L (SS-2 - SS-5), 1.84L (SS-1 - SS-5), 5.7TR (SS-5), 5.5TR (SS-5) |
Fall Substation Washing |
10 Hours
Continuous |
|
| 01-Oct-26 08:00 |
01-Oct-26 16:00 |
ATCO |
Outage |
6L15 (763s Hanna - 775s Sullivan Lake) |
replace structure 6L15-214 reported with a failing cross arm. |
8 Hours
Continuous |
|
| 01-Oct-26 08:30 |
04-Oct-26 17:30 |
ATCO |
RB |
9L74 (888s Dover - 960s Birchwood Creek) |
work near 9L74 - proximity clearance |
81 Hours
Continuous |
|
| 01-Oct-26 09:00 |
01-Oct-26 16:00 |
ATCO |
Outage |
848s 603 (848s Ruth Lake) |
breaker maintenance |
7 Hours
Continuous |
|
| 01-Oct-26 09:00 |
01-Oct-26 17:30 |
ALTALINK |
Outage |
1043L (320p Keephills - 367s Harry Smith) |
1043L111 Conductor repair |
8.5 Hours
Continuous |
|
| 01-Oct-26 09:00 |
02-Oct-26 16:00 |
ATCO |
TE |
ATCO Telecom Equipment |
capacity and reliability upgrades - changing radio through put from 150Mbps to 300+ on link Whitefish to Harry Hill |
31 Hours
Continuous |
|
| 01-Oct-26 09:00 |
02-Oct-26 17:00 |
ATCO |
TE |
ATCO Telecom Equipment |
Heatberg telecom, replacement of SAR A SDI cards, slot 1.3, 1.4 |
32 Hours
Continuous |
|
| 01-Oct-26 10:00 |
01-Oct-26 15:00 |
ATCO |
TE |
ATCO Telecom Equipment |
Big Mountain_S/Bridge Creek_S-Telecom- IRU radio major PM |
4 Hours
Continuous |
|
| 01-Oct-26 10:00 |
01-Oct-26 17:30 |
ALTALINK |
RB |
423L (212s N.E. Lacombe - 332s Ellis) |
423L49 replace damper |
7.5 Hours
Daily |
|
| 01-Oct-26 10:00 |
02-Oct-26 16:00 |
ATCO |
Outage |
707s 506C (707s St. Paul), 707s 506 (707s St. Paul) |
breaker maintenance |
30 Hours
Continuous |
|
| 02-Oct-26 07:00 |
02-Oct-26 17:00 |
EPCOR |
TE |
EP 511s RTU/SCADA (EP 511s Victoria) |
Victoria annex - RTU network group control cutover and commissioning |
10 Hours
Continuous |
|
| 02-Oct-26 07:00 |
05-Oct-26 17:00 |
EPCOR |
Outage |
72NW15 (Namao - Woodcroft), N726 (Namao), W723 (Woodcroft) |
NW15: Emergency Pole Replacement |
82 Hours
Continuous |
|
| 02-Oct-26 08:00 |
02-Oct-26 17:00 |
ATCO, ALTALINK |
Outage |
760L (760AL tap - 7LA760 tap) |
Outage required to install interphase spacers |
9 Hours
Continuous |
|
| 02-Oct-26 08:00 |
02-Oct-26 17:00 |
ALTALINK |
Outage |
163s 760N (163s Amoco Empress), 760L (163s Amoco Empress - 760AL tap) |
ATCO Scope Outage required to install interphase spacers, and aerial marker cones over pipeline crossing. |
9 Hours
Continuous |
|
| 02-Oct-26 08:00 |
02-Oct-26 18:00 |
ENMAX |
Outage |
2.83L (SS-5 - 2.83L tap), 2.83L (SS-2 - 2.83L tap), 2.83L (SS-13 - 2.83L tap), 5.9TR (SS-5), 5.10TR (SS-5), 5B138-5BT12 (SS-5), 13B138-2.83 (SS-13), 5MD138-5.10TR (SS-5), 5MD138-5.9TR (SS-5), 2MD138-2.83 (SS-2) |
fall substation washing |
10 Hours
Continuous |
|
| 02-Oct-26 08:00 |
05-Oct-26 16:00 |
ENMAX |
Outage |
33.84L (SS-33 - SS-43) |
KLS installing fire hydrant |
80 Hours
Continuous |
|
| 02-Oct-26 08:00 |
02-Oct-26 20:00 |
ATCO, SUNCOR |
TE |
29PL9-1 (29EDD-1 Millennium - 848s Ruth Lake), 29PL9-2 (29EDD-1 Millennium - 848s Ruth Lake) |
29EDD1, S23 meter- AESO insitu testing |
12 Hours
Continuous |
|
| 02-Oct-26 09:30 |
02-Oct-26 15:30 |
ATCO |
RB |
7L132 (767s Oyen - 959s Lanfine) |
tap up 2000S mobile to 7L132 |
6 Hours
Continuous |
|
| 02-Oct-26 09:30 |
02-Oct-26 15:30 |
ATCO |
IO |
767s 602T (767s Oyen) |
GOI to tap up 2000S mobile to 767s 25 kV bus |
6 Hours
Continuous |
|