| Alberta Electric System Operator | |
| Long Range Significant Transmission Outages for the period of 24 months starting 2019-04-27 | |
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The table below contains the significant transmission outages submitted as tentative to the AESO. These Outages have not yet necessarily been approved, but are listed for awareness and coordination purposes. An Outage has been considered significant for this table if it meets any one (1) or more of the following criteria: |
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| Note: Where a transmission outage requires generation curtailments, the adjustments to generation will typically happen in the hours before the scheduled transmission outage and in the hour after the element is returned to service. | |
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| Owner | From | To | Duration | Element | Scheduled Activity | Affected Intertie |
|---|---|---|---|---|---|---|
| Syncrude | 04-Oct-18 09:00 | 15-Jan-20 20:00 | 468.5 Days
Continuous |
Mildred T3 (Syncrude Mildred Lake) | damaged transformer repairs | |
| ENMAX, ALTALINK | 12-Mar-19 14:53 | 06-Jun-19 12:00 | 85.88 Days
Continuous |
1080L (ENMAX 65 - ENMAX 25) | forced outage | |
| ALTALINK | 01-Apr-19 10:00 | 15-Jul-19 17:00 | 105.29 Days
Continuous |
251s SR1 (251s Whitla),251s 252 (251s Whitla),251s 552 (251s Whitla),251s Whitla 240kV Bus 1 | construct new equipment | |
| SUNCOR | 15-Apr-19 08:00 | 28-Apr-19 18:00 | 13.42 Days
Continuous |
29EDD-1 Millennium,29EDD-1 29EDD1s952 (29EDD-1 Millennium),29EDD-1 29EDD1s1052 (29EDD-1 Millennium),29EDD-1 Millennium 260kV West Bus 1 | 5 years maintenance | |
| BCH | 15-Apr-19 09:00 | 30-Apr-19 17:00 | 15.33 Days
Continuous |
5L72 (Mica Creek - Nicola) | urgent repair work | AB-BC |
| ALTALINK | 16-Apr-19 07:00 | 05-May-19 18:00 | 19.46 Days
Continuous |
1206L (89s Ellerslie - 12s Heartland) | spacer and damper replacement on structures #4 - 191 | |
| ALTALINK, Lethbridge | 23-Apr-19 10:00 | 09-May-19 18:00 | 16.33 Days
Continuous |
725AL (618s Riverbend - 725L tap),725L (111s Coalbanks - 674s Lethbridge Bowron) | replace 674S725E switch and component replacement | |
| ALTALINK | 23-Apr-19 11:00 | 02-May-19 16:00 | 9.21 Days
Continuous |
310P 3352 (310p Sundance),310P 69 (310p Sundance),310P 234N (310p Sundance),310P 512N (310p Sundance),310p T30 (310p Sundance),310P Sundance 69kV Bus,310P T33 (310P Sundance) | migrate and commission controls and protection to new RTU and LAN | |
| ALTALINK | 25-Apr-19 07:00 | 28-Apr-19 18:30 | 3.48 Days
Continuous |
859L (20s Ghost - T793s Horse Creek),113L (20s Ghost - 33s Spray),150L (20s Ghost - 150L46),20s T1 (20s Ghost) | Replace 20s149, 20s153, T1 CT’s Replace bus conductor and strain Insulators | |
| EPCOR | 29-Apr-19 08:00 | 03-May-19 17:00 | 4.38 Days
Continuous |
L2401 @ Lambton,803s L2401 (803s Lambton) | breaker maintenance | |
| ALTALINK | 29-Apr-19 08:00 | 27-May-19 17:00 | 28.38 Days
Continuous |
320p2A & 320p61 Advice for Trans,320p1A,320p 152 (320p Keephills),320p 452 (320p Keephills),320p 252 (320p Keephills) | replace 320p489, maintain 320p452 and replace 320p452 CTs | |
| ALTALINK | 29-Apr-19 08:30 | 02-May-19 17:30 | 3.38 Days
Continuous |
491L (252s Jarrow - 7L50 tap),252s2 (Affecting 419L) GOI,252s 2 (252s Jarrow) | Replacing L1 A and B Protections and testing locally with 252 breaker | |
| ATCO | 29-Apr-19 09:00 | 01-May-19 16:30 | 2.31 Days
Continuous |
715S 704,7L95,7L95 (889s Mahkeses - 715s Leming Lake),715s 704 (715s Leming Lake) | Breaker Maintenance & tie in bus lockout logic | |
| ATCO | 29-Apr-19 11:30 | 30-Apr-19 17:00 | 29.5 Hours
Continuous |
840S 504,840s 504 (840s McNeill) | Install Cables In Filter Bay | AB-SK |
| ALTALINK | 29-Apr-19 11:30 | 01-May-19 17:00 | 2.23 Days
Continuous |
163s T2 (Tx18482) GOI,163s T2 (163s Amoco Empress) | Transformer maintenance | |
| ALTALINK | 30-Apr-19 09:30 | 30-Apr-19 11:30 | 2 Hours
Daily |
285s3202 GOI | Techs will be on site to update DNP address on the following; 3202L 67/67N/79/L8 SEL351S. | |
| ALTALINK | 01-May-19 07:30 | 01-May-19 18:00 | 10.5 Hours
Daily |
268s24 Advice for Customer | Customer high voltage equipment maintenance | |
| ENMAX | 01-May-19 08:00 | 13-May-19 16:00 | 12.33 Days
Continuous |
162s 240KV Bus. PT-Z42,162s Beddington 240 kV North Bus | Fall Substation Washing. Upgrade Protection on 2-GSU-XF-0002 | |
| ATCO | 01-May-19 08:30 | 02-May-19 16:00 | 31.5 Hours
Continuous |
840s 505 (840s McNeill),840S 505 | Install Cables In Filter Bay | AB-SK |
| ALTALINK | 02-May-19 08:15 | 02-May-19 13:45 | 5.5 Hours
Daily |
50L (44s-C21s) - GOI | Urgent outage to replace termination on underground cable | |
| ALTALINK | 03-May-19 08:00 | 05-May-19 18:00 | 2.42 Days
Continuous |
252s 2 (252s Jarrow),526s 252 (526s Buffalo Creek),252s2,526s252 and 7L50 GOI,491L (252s Jarrow - 7L50 tap) | Setting changes at 526s and end to end testing with 252s | |
| ENMAX, ALTALINK | 04-May-19 08:00 | 04-May-19 18:00 | 10 Hours
Continuous |
7.82L. 7.2TR. 7B138-7BT3. 7PT138-Z32,7.82L (42s Sarcee - ENMAX 7) | Substation Washing | |
| ENMAX | 06-May-19 08:00 | 06-May-19 16:00 | 8 Hours
Continuous |
162s Beddington 240 kV North Bus,162s 240KV Bus. PT-Z41 | Fall Substation Washing, Z41, RB132, RB131. | |
| EPCOR | 06-May-19 08:00 | 06-May-19 17:00 | 9 Hours
Continuous |
12BU2 Zone @ Genesee,330p Genesee 500 kV Bus 2,330p 1203 (330p Genesee),330p 1209 (330p Genesee),330p 1206 (330p Genesee),330P 12TC2 (330p Genesee) | doble | |
| EPCOR | 06-May-19 08:00 | 10-May-19 17:00 | 4.38 Days
Continuous |
803s L2402 (803s Lambton),L2402 @ Lambton | breaker maintenance | |
| ALTALINK | 06-May-19 08:30 | 08-May-19 18:30 | 2.42 Days
Daily |
89s T1(TX18724/25/26) GOI,89s T1 (89s Ellerslie) | 89s T1-B South Rad Leak, 89s T1-A Rad Valve Leak, 89s T1-C Oil Leak from Model 11 GDR, 89s T1-B wash | |
| ALTALINK, Lethbridge | 06-May-19 09:00 | 09-May-19 18:00 | 3.38 Days
Continuous |
725AL (618s Riverbend - 725L tap),725L (111s Coalbanks - 674s Lethbridge Bowron),725L (L674s - 618s - L111s) - GOI | Component Replacements: (725AL Str's Range 1-13) and (725L Str's Range 310-367) | |
| EPCOR, ALTALINK | 06-May-19 09:30 | 09-May-19 17:00 | 3.31 Days
Continuous |
1203L (320p Keephills - 510s Sunnybrook),1203 Line ( Sunnybrook - Keephills ) | Line Maintenance & Upgrades | |
| ATCO | 06-May-19 11:30 | 07-May-19 17:00 | 29.5 Hours
Continuous |
840S 508,840s 508 (840s McNeill) | Install Cables In Filter Bay | AB-SK |
| EPCOR | 07-May-19 08:00 | 07-May-19 17:00 | 9 Hours
Continuous |
330P 12TC1 (330p Genesee),330p 1207 (330p Genesee),330p 1204 (330p Genesee),330p 1201 (330p Genesee),330P Genesee 500 kV Bus 1,12BU1 zone @ Genesee | doble | |
| EPCOR, ALTALINK | 08-May-19 08:00 | 08-May-19 17:00 | 9 Hours
Continuous |
430L (330P Genesee - 510S Sunnybrook),430L (330P - 510S) @ Genesee | Doble | |
| ATCO | 08-May-19 08:30 | 09-May-19 17:00 | 1.35 Days
Continuous |
840S 509,840s 509 (840s McNeill) | Install Cables In Filter Bay | AB-SK |
| ALTALINK, Lethbridge | 09-May-19 08:00 | 09-May-19 14:00 | 6 Hours
Continuous |
725L (111s Coalbanks - 674s Lethbridge Bowron),725AL (618s Riverbend - 725L tap) | replace 674S725E switch | |
| ALTALINK | 10-May-19 07:00 | 03-Jun-19 18:00 | 24.46 Days
Continuous |
180L (255s - Open Point 'C' - Open Point,180L (255s Vulcan - 928s East Stavely) | Airbrake Replacements 197L2, 180L204, 180L205 | |
| EPCOR | 10-May-19 08:00 | 10-May-19 17:00 | 9 Hours
Continuous |
1204 @ Genesee,330p 1204 (330p Genesee) | doble | |
| ATCO | 11-May-19 07:00 | 06-Jun-19 17:00 | 26.42 Days
Continuous |
791S 706,791S 701T,791s 706 (791s Rainbow Lake),791s 701T (791s Rainbow Lake) | Refurbish transformer | |
| BCH | 12-May-19 12:00 | 12-May-19 13:00 | 60 Mins
Continuous |
5L71 (Mica Creek - Nicola),5L72 (Mica Creek - Nicola) | MCA blackstart test | AB-BC |
| ENMAX, ALTALINK | 13-May-19 08:00 | 14-May-19 16:00 | 1.33 Days
Continuous |
28.2TR (ENMAX 28),28.80L (42s Sarcee - ENMAX 28),28.80L. 28.2TR. 28PT138-Z31 | HV SW Maintenance SW80, SW81, SW82, SW86, MD-28.2TR. | |
| SUNCOR | 13-May-19 08:00 | 26-May-19 18:00 | 13.42 Days
Continuous |
29EDD-1 Millennium,29EDD-1 952_102 (29EDD-1 Millennium),29EDD-1 952_101 (29EDD-1 Millennium) | 5 years maintenance | |
| EPCOR, ALTALINK | 13-May-19 09:30 | 16-May-19 17:00 | 3.31 Days
Continuous |
1209 Line ( Genesee - Ellerslie ),1209L (89s Ellerslie - 330p Genesee) | Line Maintenance & Upgrades | |
| ALTALINK | 13-May-19 09:30 | 07-Jun-19 18:00 | 25.35 Days
Continuous |
89s T2(TX18727/28/33) GOI,89s T2 (89s Ellerslie) | transformer maintenance: Re-gasket (T2-B), (T2-C) 240KV bushing leak, (T2-A) 240kV Bushing Leak, (T2-B) Conservator Valve Leaking | |
| ATCO | 13-May-19 11:30 | 14-May-19 17:00 | 29.5 Hours
Continuous |
840S 510,840s 510 (840s McNeill) | Install Cables In Filter Bay | AB-SK |
| EPCOR | 14-May-19 08:00 | 14-May-19 17:00 | 9 Hours
Continuous |
L2405 @ Lambton,803s L2405 (803s Lambton) | doble | |
| ALTALINK | 15-May-19 07:00 | 16-May-19 18:00 | 1.46 Days
Continuous |
320p T1 (320p Keephills),25KV bus GOI,320p T1,138kV Bus | Replace 138 kV Bus PT, replace 25 kV Bus PT, replace metering on SS 1/2, T4 maintenance | |
| ALTALINK, ATCO | 15-May-19 08:00 | 15-May-19 18:00 | 10 Hours
Daily |
395s Station,174L/701L/7L77 GOI,174L (197s Bardo - 395s North Holden),7L77 (395s North Holden - 709s Vegreville),701L (395s North Holden - 223s Strome) | 138kV bus insulators to be replaced, TX1 doble | |
| ENMAX | 15-May-19 08:00 | 16-May-19 18:00 | 1.42 Days
Continuous |
25B240-D140 (ENMAX 25),ENMAX 25 B240-D131 (ENMAX 25),25s. 25B240-D131. 25B240-D134. 25B240-D140. 240kV Bus | HV SW MD maint SW131, SW137, SW145, SW149. Doble 25PT240-Z41. SF6 sample 25-D138, 25-D139. Substation Washing Z41, PT1080 | |
| EPCOR | 16-May-19 08:00 | 16-May-19 17:00 | 9 Hours
Continuous |
1055L (816s Petrolia - 629s Argyll Transfer Station),1055L @ Petrolia | Doble | |
| ALTALINK | 16-May-19 08:15 | 16-May-19 16:45 | 8.5 Hours
Daily |
281s T1 (Tx18897) GOI,281s T1 (281s Johnson) | Investigate T1 leaks | |
| EPCOR, ALTALINK | 17-May-19 08:00 | 17-May-19 17:00 | 9 Hours
Continuous |
1044L @ Petrolia,1044L (805s Jasper - 816s Petrolia) | Doble | |
| ENMAX | 17-May-19 08:00 | 22-May-19 18:00 | 5.42 Days
Continuous |
ENMAX 25 B240-D131 (ENMAX 25),ENMAX 25 B240-D132 (ENMAX 25),ENMAX 25 MD240-1GSU (ENMAX 25) | HV SW MD maintenance | |
| ENMAX | 19-May-19 08:00 | 19-May-19 16:00 | 8 Hours
Continuous |
37.82L. | HV Breaker Maintenance 37B138-37.82 | |
| EPCOR | 20-May-19 07:00 | 21-Jun-19 17:00 | 32.42 Days
Continuous |
BA2 @ Bellamy & Argyll,240BA2 (814s Bellamy - 629s Argyll Transfer Station) | Degass | |
| EPCOR | 20-May-19 08:00 | 24-May-19 17:00 | 4.38 Days
Continuous |
809 BKR @ Genesee - TIE TX2 NIS,330p 809 (330p Genesee) | Breaker Maint | |
| ATCO | 21-May-19 08:30 | 22-May-19 17:00 | 1.35 Days
Continuous |
840s 506 (840s McNeill),840S 506 | Install Cables In Filter Bay | AB-SK |
| ALTALINK | 21-May-19 12:00 | 30-May-19 16:00 | 9.17 Days
Continuous |
42s T1 (42s Sarcee),42s 40 (42s Sarcee),42s T1 (Tx18508) GOI | Replace 42s40 with new SF6 breaker | |
| ALTALINK | 22-May-19 09:00 | 19-Jun-19 18:00 | 28.38 Days
Continuous |
717L (17s - 262s) - GOI,717L (17s Benalto - 262s Rocky Mountain House) | Component replacements between Structures #103 - 403 | |
| ATCO | 23-May-19 07:00 | 28-May-19 16:00 | 5.38 Days
Continuous |
7L86 (822s Wolf Lake - 877s Foster Creek),7L86 | Build t tap for new Athik sub connection | |
| ENMAX, ALTALINK | 23-May-19 08:00 | 27-May-19 18:00 | 4.42 Days
Continuous |
1080L.,1080L (ENMAX 65 - ENMAX 25) | HV SW MD maint SW146, SW147, MD-1080@25sub. Doble 25PT240-1080. Doble 65PT240-1080. SF6 Sample 25-D138, 25-D139 | |
| BCH | 23-May-19 09:00 | 24-May-19 17:00 | 1.33 Days
Continuous |
5L76 (Ashton Creek - Nicola) | Annual Plan Request F20 | AB-BC |
| ALTALINK | 25-May-19 08:00 | 25-May-19 17:00 | 9 Hours
Daily |
391s25 - GOI,391s 25 (391s Balzac) | Install grading capacitors on 391s25. | |
| BCH | 26-May-19 09:00 | 02-Aug-19 17:00 | 68.33 Days
Continuous |
5L72 (Mica Creek - Nicola) | switchgear roof replacement | AB-BC |
| EPCOR, ALTALINK | 27-May-19 08:00 | 31-May-19 17:00 | 4.38 Days
Continuous |
430L (330P Genesee - 510S Sunnybrook),330p 807 (330p Genesee),807 BKR @ Genesee | breaker maintenance | |
| SUNCOR | 27-May-19 08:00 | 02-Jun-19 18:00 | 6.42 Days
Continuous |
29EDD-1 952_104 (29EDD-1 Millennium),29EDD-1 Millennium | 5 years maintenance | |
| ALTALINK | 27-May-19 10:15 | 30-May-19 17:45 | 3.31 Days
Continuous |
13s T2(TX18672) GOI,13s T2 (13s Deerland) | transformer maintenance: Blown H1 LA, LTC FER/MR (maint) 245/145kV, LTC FER/MR (doble)245/145kV3, 1" sample valve sweating, Rad Valves Sweating | |
| ALTALINK | 29-May-19 08:00 | 29-May-19 16:30 | 8.5 Hours
Daily |
33s 2 (33s Spray) | maintain 138kV SF6 gas breaker | |
| EPCOR | 30-May-19 07:00 | 31-May-19 17:00 | 1.42 Days
Continuous |
C2402 @ Cloverbar S/S,987s C2402 (987s Clover Bar) | Commissioning of Anti- Islanding Upgrade Project | |
| EPCOR | 03-Jun-19 08:00 | 14-Jun-19 17:00 | 11.38 Days
Continuous |
805s T3 (805s Jasper),TX3 @ Jasper | Bushing Replacement | |
| ATCO, ALTALINK | 03-Jun-19 08:00 | 02-Aug-19 16:00 | 60.33 Days
Continuous |
9LS1M,840S McNeill Station,830L (562s Cypress - 840s McNeill Station),840S CONVERTER,7L830 | 2019 McNeill Shutdown for Protection Upgrade Install, 25KV Protection Upgrade Project. Once started will not be able to return to service until project is completed. |
AB-SK |
| EPCOR, ALTALINK | 03-Jun-19 09:00 | 08-Jun-19 17:00 | 5.33 Days
Continuous |
1209L outage 330P @ Genesee S/S and 89S,1209L (89s Ellerslie - 330p Genesee) | Relay Settings changes to 1209L protection to enable single pole tripping | |
| ALTALINK | 04-Jun-19 07:45 | 05-Jun-19 16:45 | 1.38 Days
Continuous |
42s76 (C1 & C2) - GOI,42s 76 (42s Sarcee) | Maintain 240kV SF6 cap bank breaker | |
| BCH | 04-Jun-19 09:00 | 14-Jun-19 17:00 | 10.33 Days
Continuous |
5L72 (Mica Creek - Nicola) | Spacer Replacement: 5L72 Outage | AB-BC |
| ALTALINK | 05-Jun-19 07:30 | 05-Jun-19 16:30 | 9 Hours
Daily |
995L (17s Benalto - 995AL tap),995L (Open-end) Advice | Open due to double TPR outage. 9062R - 9495R Radio replacement. | |
| ALTALINK, ATCO | 05-Jun-19 08:00 | 06-Jun-19 17:00 | 1.38 Days
Daily |
1035L (2075s Newell - 244s Bowmanton),1035L (244s - 2075s) Advice | Trip testing of new Shamrock (1018s) RAS | |
| ALTALINK | 05-Jun-19 23:00 | 06-Jun-19 03:00 | 4 Hours
Continuous |
995L (17s Benalto - 995AL tap),17s 995L Open - Advice | Commission new airbreak control module and supervisory control of switch 17s995N. | |
| ALTALINK, EPCOR | 07-Jun-19 06:30 | 10-Jun-19 17:30 | 3.46 Days
Continuous |
1056L (89s-E629s Epcor - Advice,1056L (89s Ellerslie - 629s Argyll Transfer Station) | Epcor Insulator Washing | |
| EPCOR, ALTALINK | 07-Jun-19 07:00 | 10-Jun-19 17:00 | 3.42 Days
Continuous |
1056L ( Argyll - Ellerslie ),1056L (89s Ellerslie - 629s Argyll Transfer Station) | Washing program | |
| ATCO | 10-Jun-19 07:00 | 14-Jun-19 17:30 | 4.44 Days
Continuous |
2075s ACF11 (2075s Newell),2075S ACF11 | Maintenance on 901T, ACF11 Inspection, PLC Firmware Upgrades, Relay Firmware Upgrades, & Glycol Bypass Calibration SVC Redundancy Lost |
|
| SUNCOR | 10-Jun-19 08:00 | 16-Jun-19 18:00 | 6.42 Days
Continuous |
29EDD-1 Millennium,29EDD-1 29EDD1s852 (29EDD-1 Millennium) | 5 years maintenance | |
| ENMAX | 10-Jun-19 08:00 | 18-Jun-19 18:00 | 8.42 Days
Continuous |
ENMAX 65 B138-D83 (ENMAX 65),65.1TR (ENMAX 65),ENMAX 65 B138-D81 (ENMAX 65),ENMAX 65 B240-D130 (ENMAX 65),ENMAX 65 B240-D133 (ENMAX 65) | Doble 65PT240-Z41. 65PT138-Z31. 65CAP138-C3. 65CAP240-C1. Doble test transformer. Check reversing Switch | |
| EPCOR | 10-Jun-19 08:00 | 21-Jun-19 17:00 | 11.38 Days
Continuous |
330P 12TC2 (330p Genesee),TX2 @ Genesee | DGA upgrade | |
| ALTALINK, ENMAX | 10-Jun-19 09:00 | 13-Jun-19 18:00 | 3.38 Days
Continuous |
937L (102s - 5s) - GOI,937L (102s Langdon - 5s East Calgary) | Replacing insulators between Structures #50 - 64 | |
| Medicine Hat | 11-Jun-19 07:00 | 13-Jun-19 08:00 | 2.04 Days
Continuous |
MH-16L (MH69S-2 - MH69S-16),MH69s2 MH69_224 (MH69s2 North Industrial) | replace pole and line maintenance | |
| ALTALINK | 11-Jun-19 08:00 | 11-Jun-19 16:30 | 8.5 Hours
Daily |
511s4852 Open Breaker Advice,511s 4852 (511s Crossings) | Wire in a replacement K03 relay contactor in the control cabinet for 511s74 airbreak and operate the airbreak with no current flowing through it, will see 511s74 airbreak open and close during testing | |
| ALTALINK | 14-Jun-19 07:00 | 14-Jun-19 18:00 | 11 Hours
Daily |
925L (63s Red Deer - 74s Janet),925L (63s - 74s) - GOI | Replace insulator on 925L336 | |
| ATCO | 17-Jun-19 07:00 | 21-Jun-19 17:30 | 4.44 Days
Continuous |
2075S ACF21,2075s ACF21 (2075s Newell) | Maintenance on 902T, ACF21 Inspection, Move Network Switches, & Glycol Bypass Calibration SVC Redundancy Lost |
|
| ALTALINK | 17-Jun-19 09:00 | 20-Jun-19 18:00 | 3.38 Days
Continuous |
936L (102s - 5s) - GOI,936L (102s Langdon - 5s East Calgary) | Replacing insulators between Structures #50 - 64 | |
| ENMAX | 19-Jun-19 08:00 | 27-Jun-19 18:00 | 8.42 Days
Continuous |
ENMAX 65 B240-D132 (ENMAX 65),ENMAX 65 B240-D135 (ENMAX 65),ENMAX 65 B138-D85 (ENMAX 65),ENMAX 65 B138-D82 (ENMAX 65),65.2TR (ENMAX 65) | Doble 65PT240-Z42. 65PT138-Z32. 65PT138-C4, 65PT240-C2. Doble test transformer. Check reversing Switch | |
| EPCOR | 24-Jun-19 07:00 | 12-Jul-19 17:00 | 18.42 Days
Continuous |
CV5 @ Castledowns & Victoria,CV5 (557s Castle Downs - 511s Victoria) | CV5 Inspections | |
| ATCO | 24-Jun-19 08:00 | 28-Jun-19 17:00 | 4.38 Days
Continuous |
9L59,9L59 (972s Tinchebray - 801s Anderson) | 9L59- GOI permit for Clearance Mitigation 6 more structures left to change for clearance Mitigation. |
|
| ATCO | 24-Jun-19 09:30 | 26-Jun-19 17:00 | 2.31 Days
Continuous |
7L702,7L702 (137s Sedgewick - 757s Battle River) | Change Arms and Insulators on 7L702 | |
| SUNCOR | 01-Jul-19 08:00 | 21-Jul-19 18:00 | 20.42 Days
Continuous |
29EDD-1 Millennium | 5 year maintenance | |
| SUNCOR | 01-Jul-19 08:00 | 21-Jul-19 18:00 | 20.42 Days
Continuous |
29EDD-3 29Edd-3 | maintenance | |
| SUNCOR | 01-Jul-19 09:00 | 21-Jul-19 18:00 | 20.38 Days
Continuous |
30EDD-2 | maintenance & testing on breaker | |
| ALTALINK | 02-Jul-19 06:00 | 11-Jul-19 19:00 | 9.54 Days
Continuous |
1206L (89s Ellerslie - 12s Heartland),1206L (89s - 12s) - GOI | Spacer and damper replacement on Structures # 4 - 191 | |
| EPCOR, ALTALINK | 02-Jul-19 07:00 | 05-Jul-19 17:00 | 3.42 Days
Continuous |
1044L (805s Jasper - 816s Petrolia),1044L Petrolia & Jasper | Structure Refurbishment & Upgrades | |
| EPCOR, ALTALINK | 02-Jul-19 08:00 | 02-Jul-19 17:00 | 9 Hours
Continuous |
920L (37s North Calder - 557s Castle Downs),920L W @ Castledowns & North Calder | doble | |
| ATCO | 02-Jul-19 09:30 | 04-Jul-19 17:00 | 2.31 Days
Continuous |
7L702 (137s Sedgewick - 757s Battle River),7L702 | Change Arms and Insulators on 7L702 | |
| EPCOR, ALTALINK | 04-Jul-19 08:00 | 05-Jul-19 17:00 | 1.38 Days
Continuous |
915L (38s East Edmonton - 987s Clover Bar),915L @ Cloverbar & East Edmonton | doble | |
| EPCOR, ALTALINK | 08-Jul-19 07:00 | 12-Jul-19 17:00 | 4.42 Days
Continuous |
908L (89s Ellerslie - 816s Petrolia),908L Petrolia & Ellerslie | Structure Refurbishment & Upgrades | |
| EPCOR, ALTALINK | 08-Jul-19 08:00 | 09-Jul-19 17:00 | 1.38 Days
Continuous |
947L @ Cloverbar & Ellerslie,947L (89s Ellerslie - 987s Clover Bar) | Doble | |
| ATCO | 08-Jul-19 09:30 | 11-Jul-19 17:00 | 3.31 Days
Continuous |
7L702,7L702 (137s Sedgewick - 757s Battle River) | Change Arms and Insulators on 7L702 | |
| EPCOR, ALTALINK | 15-Jul-19 07:00 | 18-Jul-19 17:00 | 3.42 Days
Continuous |
915L (38s East Edmonton - 987s Clover Bar),915L Cloverbar & 38S | Structure Refurbishment & Upgrades | |
| ALTALINK | 16-Jul-19 06:00 | 25-Jul-19 19:00 | 9.54 Days
Continuous |
1212L (89s Ellerslie - 12s Heartland),1212L (89s - 12s) - GOI | Spacer and damper replacement on Structures # 4 - 191 | |
| ATCO | 17-Jul-19 08:00 | 23-Jul-19 17:00 | 6.38 Days
Continuous |
834s 902T (834s Wesley Creek),834S 902T | Three Creeks Project Install the foundations and A-Frame for the new 240 kV bays | |
| ATCO | 18-Jul-19 08:00 | 18-Jul-19 12:00 | 4 Hours
Continuous |
791s 705 (791s Rainbow Lake),7L29 (850s Rainbow Cogen - 791s Rainbow Lake),791S 705 | Test new RB4 protection | |
| SUNCOR | 22-Jul-19 08:00 | 11-Aug-19 18:00 | 20.42 Days
Continuous |
29EDD-1 Millennium | 5 year maintenance | |
| EPCOR, ALTALINK | 29-Jul-19 07:00 | 01-Aug-19 17:00 | 3.42 Days
Continuous |
947L (89s Ellerslie - 987s Clover Bar),947L Cloverbar & Ellerslie | Structure Refurbishment & Upgrades | |
| ENMAX, ALTALINK | 29-Jul-19 08:00 | 29-Jul-19 16:00 | 8 Hours
Continuous |
24.83L.,24.83L (74s Janet - ENMAX 24) | SF6 gas sample 24B138-24.83L | |
| EPCOR, ALTALINK | 02-Aug-19 08:00 | 02-Aug-19 17:00 | 9 Hours
Continuous |
1239L (510s Sunnybrook - 330p Genesee),1239L @ Genesee | Doble | |
| EPCOR | 05-Aug-19 08:00 | 06-Aug-19 17:00 | 1.38 Days
Continuous |
P2401 @ Petrolia,816s P2401 (816s Petrolia) | Splitting of DC | |
| EPCOR | 08-Aug-19 08:00 | 09-Aug-19 17:00 | 1.38 Days
Continuous |
816s P2402 (816s Petrolia),P2402 @ Petrolia | Splitting the DC | |
| EPCOR | 12-Aug-19 08:00 | 13-Aug-19 17:00 | 1.38 Days
Continuous |
P2403 @ Petrolia,816s P2403 (816s Petrolia) | Splitting the DC | |
| SUNCOR | 12-Aug-19 08:00 | 08-Sep-19 18:00 | 27.42 Days
Continuous |
30EDD-1 | 5 year 624T transformer maintenance and repair | |
| EPCOR | 15-Aug-19 08:00 | 16-Aug-19 17:00 | 1.38 Days
Continuous |
Poundmaker 2404 (Poundmaker),P2404 @ Petrolia | Splitting the DC | |
| SUNCOR | 16-Aug-19 08:00 | 29-Sep-19 18:00 | 44.42 Days
Continuous |
29EDD-56 | 5 year maintenance | |
| EPCOR | 19-Aug-19 08:00 | 20-Aug-19 17:00 | 1.38 Days
Continuous |
P2405 @ Petrolia,816s P2405 (816s Petrolia) | Splitting the DC | |
| ENMAX, ALTALINK | 19-Aug-19 08:00 | 13-Sep-19 16:00 | 25.33 Days
Continuous |
932L (74s Janet - 162s Beddington) | Line Protection Upgrade | |
| BCH | 20-Aug-19 09:00 | 06-Sep-19 17:00 | 17.33 Days
Continuous |
5L71 (Mica Creek - Nicola) | Spacer Replacement: 5L71 Outage | AB-BC |
| EPCOR | 22-Aug-19 08:00 | 23-Aug-19 17:00 | 1.38 Days
Continuous |
816s P2406 (816s Petrolia),P2406 @ Petrolia | Splitting the DC | |
| ATCO | 28-Aug-19 07:00 | 02-Sep-19 17:00 | 5.42 Days
Continuous |
766S 901T,766S 701,766s 901T (766s Nevis) | RAS modifications for the Pattern Lanfine WAGF project | |
| EPCOR | 02-Sep-19 07:00 | 27-Sep-19 17:00 | 25.42 Days
Continuous |
TX2 @ Petrolia,816s T2 (816s Petrolia) | Tap changer & Oil reclamation | |
| EPCOR | 02-Sep-19 07:00 | 27-Sep-19 17:00 | 25.42 Days
Continuous |
987s CC721 (987s Clover Bar),CC721 @ Cloverbar | Breaker Replacement | |
| ATCO | 05-Sep-19 07:00 | 10-Sep-19 17:00 | 5.42 Days
Continuous |
7L224 (774s Monitor - 650s Hansman Lake),774s 701 (774s Monitor),7L224,774S 701 | RAS modifications for the Pattern Lanfine WAGF project | |
| BCH | 09-Sep-19 09:00 | 10-Sep-19 17:00 | 1.33 Days
Continuous |
2L294 (Nelway - A.A. Lambert) | "Annual Plan Request F20 - Ian Kozicky 2L294 out from NLY to AAL for structure replacements (HELI WORK)" |
AB-BC |
| BCH | 09-Sep-19 09:00 | 20-Sep-19 17:00 | 11.33 Days
Continuous |
2L294 (Nelway - A.A. Lambert) | Annual Plan Request F20 - Ian Kozicky 2L294 Out from NLY to AAL for Insulators Replacement and Arcing Horn Installation |
AB-BC |
| ALTALINK | 10-Sep-19 08:15 | 12-Sep-19 17:15 | 2.38 Days
Continuous |
370s T5 (370s North Lethbridge),370s T5 (Tx18510) GOI | Maintain and doble T5 | |
| ALTALINK | 12-Sep-19 18:30 | 12-Sep-19 19:30 | 60 Mins
Daily |
673L & T1,283s 138kV Partial Bus,283s T1 (283s Violet Grove),836L (61s Lodgepole - 283s Violet Grove),673L (283s Violet Grove - 131s Moon Lake) | To energize the Cap Bank new CT15 | |
| ALTALINK, ATCO | 13-Sep-19 07:00 | 20-Sep-19 18:00 | 7.46 Days
Continuous |
T1,409s T3 (409s Shell Scotford),409s Shell Scotford 138 kV Bus 2,857L (409s Shell Scotford - 410s Josephburg),ALC02L (409s Shell Scotford - 879s Scotford Upgrader),409s T1 (409s Shell Scotford),409s 138 Bus 2,T3 GOI | Includes 857L and ALC02L in isolation. T1 Bushing replacement Insulator replacement (ALC02L strain), 409s857W breaker maintenance, Wildlife cover on 25 kV Busses, 857L B protection upgrade, NGR maintenance – Shell | |
| ALTALINK | 16-Sep-19 07:00 | 16-Sep-19 12:00 | 5 Hours
Daily |
38s 138kV BUS 1 - GOI,38s East Edmonton 138 kV Bus 1 | Various Switch & Hot Spot Repairs | |
| ALTALINK, Lethbridge | 16-Sep-19 08:00 | 20-Sep-19 17:00 | 4.38 Days
Continuous |
824L (593s Lethbridge Lakeview - 618s Riverbend) | replace 593S4 motorized A/B | |
| ALTALINK | 16-Sep-19 10:15 | 25-Sep-19 17:45 | 9.31 Days
Continuous |
64s T2 (Tx18748) GOI,64s T2 (64s East Crossfield) | Replace 240/138kV Bushings | |
| ATCO | 19-Sep-19 08:00 | 05-Dec-19 16:00 | 77.38 Days
Continuous |
740S 144Kv Main Bus,740s 703T (740s H.R.Milner),740S 703T | Install new 703T and reconfigure main bus | |
| ALTALINK, ATCO | 23-Sep-19 07:00 | 29-Sep-19 18:00 | 6.46 Days
Continuous |
ALC01L (409s Shell Scotford - 408s Air Liquide Scotford),856L (409s Shell Scotford - 410s Josephburg),409s T2 (409s Shell Scotford),409s Shell Scotford 138 kV bus B1,T2 GOI,409s 138 Bus 1 | Includes 856L and ALC01L in isolation. T2 Bushing replacement Insulator replacement (ALC01L strain), 409s20 breaker maintenance, Wildlife cover on 25 kV Busses, 856L B protection upgrade, ALC01L protection upgrade, NGR maintenance – Shell | |
| SUNCOR | 30-Sep-19 08:00 | 17-Oct-19 18:00 | 17.42 Days
Continuous |
29PL9-5 (29EDD-1 Millennium - 29EDD-34) | 5 year maintenance | |
| ENMAX, ALTALINK | 07-Oct-19 08:00 | 25-Oct-19 16:00 | 18.33 Days
Continuous |
24.83L (74s Janet - ENMAX 24) | Transmission Line Relocate | |
| ALTALINK, ATCO | 09-Oct-19 07:30 | 09-Oct-19 12:29 | 4.98 Hours
Daily |
526s152 (7L129) GOI,7L129 (526s Buffalo Creek - 918s Bauer),526s 152 (526s Buffalo Creek) | tank heater repair | |
| ALTALINK, ATCO | 09-Oct-19 12:30 | 09-Oct-19 17:30 | 5 Hours
Daily |
526s 252 (526s Buffalo Creek),7L50 (526s Buffalo Creek - 7L50D2),526s252 (7L50) GOI | tank heater repair | |
| ATCO | 17-Oct-19 08:00 | 01-Nov-19 16:00 | 15.33 Days
Continuous |
740S 701,740s 701 (740s H.R. Milner) | replace breaker and re conductor switches | |
| SUNCOR | 18-Oct-19 08:00 | 03-Nov-19 18:00 | 16.46 Days
Continuous |
29PL9-6 (29EDD-1 Millennium - 29EDD-34) | 5 year maintenance | |
| ENMAX | 02-Nov-19 08:00 | 30-Nov-19 18:00 | 28.46 Days
Continuous |
ENMAX 25 B240-D134 (ENMAX 25),ENMAX 25 MD240-2GSU (ENMAX 25),ENMAX 25 B240-D135 (ENMAX 25) | HV SW MD maintenance | |
| ATCO, CapitalPower | 07-Nov-19 07:00 | 07-Nov-19 17:00 | 10 Hours
Continuous |
615S Halkirk,Halkirk Wind Farm | Attach new in out station | |
| ENMAX, ALTALINK | 18-Nov-19 08:00 | 13-Dec-19 16:00 | 25.33 Days
Continuous |
918L (281s Johnson - 162s Beddington) | line protection upgrade | |
| ATCO | 05-Dec-19 08:00 | 19-Dec-19 16:00 | 14.33 Days
Continuous |
740S 704,7L20 (810s Dome Cutbank - 740s H.R.Milner),7L20,740s 704 (740s H.R. Milner) | replace breaker and re conductor switches | |
| CapitalPower | 07-Dec-19 07:00 | 12-Dec-19 17:00 | 5.42 Days
Continuous |
615S Halkirk | Reroute OPGW test and commission. | |
| ATCO | 07-Jan-20 08:00 | 27-Jan-20 17:00 | 20.38 Days
Continuous |
834s 902T (834s Wesley Creek),834S 902T | Three Creeks Project Install the 240 kV switches (close proximity to energized bus), String the flex bus between the bus A-Frames and line A-Frames Re configure the pipe bus to its final configuration Commission 902T logic to new breakers |
|
| ATCO | 13-Jan-20 08:00 | 17-Jan-20 17:00 | 4.38 Days
Continuous |
7L131,7L131 (834s Wesley Creek - 905s Meikle) | To facilitate the installation of the new 9L124 and 9L139 we need to lower 7L08, 7L131 and 7L106 | |
| ATCO | 20-Jan-20 07:00 | 23-Jan-20 16:00 | 3.38 Days
Continuous |
9L59 (972s Tinchebray - 801s Anderson),9L59 | Outage for Garden Plain Wind Project | |
| ATCO | 20-Jan-20 08:00 | 24-Jan-20 17:00 | 4.38 Days
Continuous |
7L106,7L106 (834s Wesley Creek - 905s Meikle) | To facilitate the installation of the new 9L124 and 9L139 we need to lower 7L08, 7L131 and 7L106 | |
| ENMAX | 03-Feb-20 08:00 | 14-Feb-20 16:00 | 11.33 Days
Continuous |
162.81L (ENMAX 162 Beddington - 391S Balzac) | Line Protection Upgrade | |
| ATCO | 06-Mar-20 07:00 | 13-Mar-20 17:00 | 7.38 Days
Continuous |
9L101,9L101 (2005s Secord - 957s McClelland) | Line move for mine expansion. Attach new line to existing 9L101 |
|
| ATCO | 03-Aug-20 07:00 | 03-Nov-20 17:00 | 92.46 Days
Continuous |
972S 905B,972s 905B (972s Tinchebray) | Halkirk 2 Windfarm Project | |
| SUNCOR | 26-Aug-20 09:00 | 05-Sep-20 18:00 | 10.38 Days
Continuous |
29PL9-14 (29EDD-56 - 29EDD-34),29PL9-15 (29EDD-56 - 29EDD-34) | maintenance on bus 29PP-41F | |
| ATCO | 14-Sep-20 07:00 | 23-Sep-20 17:00 | 9.42 Days
Continuous |
972S 900BS1 | Installing new 240Kv Bay (connect 907B to BUS 1) for 620S Goldeye substation connection | |
| SUNCOR, ATCO | 14-Sep-20 09:00 | 20-Sep-20 18:00 | 6.38 Days
Continuous |
29EDD-1 Millennium,29PL9-2 (29EDD-1 Millennium - 848s Ruth Lake) | 5 and 10 year maintenance | |
| ATCO | 23-Sep-20 07:00 | 25-Sep-20 17:00 | 2.42 Days
Continuous |
972S 900BS2,9L16 (972s Tinchebray - 755s Cordel),9L16 | Installing new 240Kv Bay (connect 909A to BUS 2) for 620S Goldeye substation connection Cutover 9L16 to New Bay |
|
| ATCO | 25-Sep-20 07:00 | 28-Sep-20 17:00 | 3.42 Days
Continuous |
9L177 | Installing new 240Kv Bay for 620S Goldeye substation connection Cutover 9L177 to New Bay |
|
| ATCO | 28-Sep-20 07:00 | 29-Sep-20 17:00 | 1.42 Days
Continuous |
9L62 | Installing new 240Kv Bay for 620S Goldeye substation connection String 9L62 into 972S Tinchebray |
|
| ATCO, ALTALINK | 22-Oct-20 07:00 | 27-Oct-20 17:00 | 5.42 Days
Continuous |
7L77,7L65,7L65 (709s Vegreville - 710s Vermilion),7L77 (395s North Holden - 709s Vegreville) | 7L65 Rebuild Project | |
| ATCO | 15-Dec-20 07:00 | 23-Dec-20 17:00 | 8.42 Days
Continuous |
730s 704 (730s Rycroft),730S 704,730S 702,7L73 (730s Rycroft - 829s Boucher Creek),730s 703 (730s Rycroft),730s 702 (730s Rycroft) | SVC addition and 144 kv bus rebuild. | |
| ATCO | 05-Jan-21 08:00 | 08-Jan-21 16:00 | 3.33 Days
Continuous |
9L20 (766s Nevis - 755s Cordel),9L20 | 56772 Nevis Transformer Addition 9L20 Open -ended |
|
| ATCO | 09-Jan-21 08:00 | 12-Jan-21 16:00 | 3.33 Days
Continuous |
9L912,9L912 (766s Nevis - 63s Red Deer) | 56772 Nevis Transformer Addition 9L912 Open -ended |
|
| ATCO | 25-Jan-21 08:00 | 26-Jan-21 16:00 | 1.33 Days
Continuous |
766S 901T,9L20,9L912 | 56772 Nevis Transformer Addition Tie-in to the new bus for 902T 901T OOS 9L20 OPEN-ENDED 9L912 OPEN-ENDED |
| AB-BC, AB-SK & AB-MATL: refer to AESO web posting: | http://itc.aeso.ca/itc/public/reportIndex.do |
| Also, | |
| AB-BC, AB-SK & AB-MATL: refer to ISO Rule 203.6: | http://www.aeso.ca/rulesprocedures/18592.html |
| Prepared On: | 2019-04-17 3:28:18 PM |
|
This document and the information contained herein are based upon information and data which by their nature contain a degree of uncertainty and are subject to change. In addition, this document may contain information and data from public sources and/or third parties, which have been assumed to be accurate and complete and have not been verified. Accordingly, the Independent System Operator, operating as the Alberta Electric System Operator (the "AESO") makes no warranty, representation or guarantee, express or implied, with respect to this document or the information contained herein, including, but not limited to, any warranty, representation or guarantee of accuracy, completeness, timeliness, reliability, availability, absence of computer virus, non- infringement, merchantability or suitability for any purpose. Under no circumstances will the AESO, its members, officers, employees, contractors or agents, or any of their respective affiliates, be liable for any errors or omissions in, or any losses, damages or claims whatsoever, whether in contract, tort or otherwise, arising from use of or reliance upon, this document or any information contained herein. © 2009 Alberta Electric System Operator. All rights reserved |