| Alberta Electric System Operator | |
| Long Range Significant Transmission Outages for the period of 24 months starting 2019-02-23 | |
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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 | 31-Mar-19 20:00 | 178.46 Days
Continuous |
Mildred T3 (Syncrude Mildred Lake) | damaged transformer repairs | |
| ALTALINK | 14-Jan-19 13:00 | 14-Mar-19 14:00 | 59 Days
Continuous |
902L (19s Wabamun - 310p Sundance),1046L (310p Sundance - 338s Cherhill) | replacing structures #11 & 12,this portion of 902L remain under a separate GOI zone to prevent mis-coordination | |
| ATCO, ALTALINK | 01-Feb-19 07:00 | 24-Feb-19 18:00 | 23.46 Days
Continuous |
789L (818s Winefred - 898s Heart Lake) | install new line airbreaks | |
| ALTALINK | 12-Feb-19 07:00 | 09-Mar-19 19:00 | 25.5 Days
Continuous |
1206L (89s Ellerslie - 12s Heartland) | spacer and damper replacement | |
| EPCOR | 19-Feb-19 07:00 | 25-Feb-19 17:00 | 6.42 Days
Continuous |
657s Summerside T1 (657s Summerside) | relay maintenance | |
| BCH | 19-Feb-19 09:00 | 01-Mar-19 17:00 | 10.33 Days
Continuous |
1L274 (Britt Creek - 1D4L274) | replace end-of-life structures and related defects | AB-BC |
| ALTALINK | 19-Feb-19 12:00 | 27-Feb-19 16:00 | 8.17 Days
Continuous |
926L (310p Sundance - 17s Benalto) | component replacements and maintenance | |
| ATCO | 20-Feb-19 10:30 | 24-Feb-19 15:00 | 4.19 Days
Continuous |
7L199 (347s Fox Creek - 741s Fox Creek) | relocate poles 30 36 | |
| ATCO | 24-Feb-19 07:00 | 12-Mar-19 17:00 | 16.38 Days
Continuous |
7L67,824S 701TCS,824S 701T | Replace 701TCS with BKR 701 and GSW 701A and protection upgrade
Mobile sub in service, 824S Radial fed from 851S Morse River. Mar 5 - 12, 2019 GOI isolation points shrunk down to 701A (NEW) and 501TD. |
|
| EPCOR | 25-Feb-19 07:00 | 01-Mar-19 17:00 | 4.42 Days
Continuous |
330p Genesee 500 kV Bus 2,330P 12TC2 (330p Genesee),12TC2 Outage @ 330P Genesee S/S | relay maintenance | |
| EPCOR | 25-Feb-19 07:00 | 01-Mar-19 17:00 | 4.42 Days
Continuous |
557s T2 (557s Castle Downs),557s 2404 (557s Castle Downs),557s 2403 (557s Castle Downs),Tx2 Outage @ Castledowns S/S | Relay Maintenance | |
| ENMAX, ALTALINK | 25-Feb-19 08:00 | 26-Feb-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. | |
| ALTALINK | 25-Feb-19 09:30 | 01-Mar-19 15:30 | 4.25 Days
Continuous |
1081L (17s-281s) - GOI | 1081L A&B Line protections replacement | |
| ALTALINK | 25-Feb-19 10:30 | 07-Mar-19 16:30 | 10.25 Days
Continuous |
310p 240 kV C Bus Advice,310p 2852 (310p Sundance),310P T36 (310p Sundance),310p T30 (310p Sundance),310p Sundance 240kV Bus C | Migrate and commission all T30 & 310p2852 protections, breaker, status, controls, alarms, metering and remote access to the new RTU and LAN. | |
| ATCO | 25-Feb-19 12:00 | 04-Mar-19 15:00 | 7.13 Days
Continuous |
7L64,7L64 (930s Arcenciel - 7L64D5) | 7L64 pole repairs from 2017 report | |
| ALTALINK | 26-Feb-19 07:00 | 28-Feb-19 18:00 | 2.46 Days
Continuous |
749L (899s-7L749D3) - GOI,749L (899s Edgerton - 7L749D3) | Components ( washers) -Str's Range 296-436 | |
| ALTALINK | 26-Feb-19 08:00 | 26-Feb-19 17:30 | 9.5 Hours
Daily |
69s T4 (69s North Barrhead),69s T4(TX18298) GOI | 69sT4 MR TC diverter gear box leak, 69sT4 MR TC diverter gear box leak, 69sT4 MR crank seal/MA7 Counter | |
| ALTALINK | 27-Feb-19 09:00 | 27-Feb-19 16:00 | 7 Hours
Daily |
121s23N - GOI | Maintain 25kV vacuum breaker | |
| ALTALINK | 27-Feb-19 09:00 | 27-Feb-19 16:30 | 7.5 Hours
Daily |
879L (244s-368s) - GOI,879L (368s Burdett - 244s Bowmanton) | techs to troubleshoot and repair supervisory control on 244s879 air break switch | |
| ALTALINK | 27-Feb-19 23:00 | 28-Feb-19 04:00 | 5 Hours
Daily |
62s11 (62s Brazeau) | maintenance | |
| ALTALINK | 28-Feb-19 04:00 | 28-Feb-19 07:00 | 3 Hours
Daily |
62s12 (62s Brazeau) | maintenance | |
| Syncrude | 01-Mar-19 09:00 | 15-Mar-19 22:00 | 14.5 Days
Continuous |
D05 75 (D05 D05),D05 76 (D05 D05),D05 77 (D05 D05),D05 78 (D05 D05),Mildred_1225 (Syncrude Mildred Lake),Mildred_915 (Syncrude Mildred Lake),Mildred_135 (Syncrude Mildred Lake),Mildred_815 (Syncrude Mildred Lake),Mildred_235 (Syncrude Mildred Lake),Mildred_1935 (Syncrude Mildred Lake),Mildred_1435 (Syncrude Mildred Lake),Mildred_335 (Syncrude Mildred Lake),ML1 (Syncrude Mildred Lake - D05 Syncrude),Mildred Lake 72kV Bus B (Sycrude Mildred Lake),Mildred_1635 (Syncrude Mildred Lake) | preventive maintenance | |
| ENMAX, ALTALINK | 04-Mar-19 08:00 | 04-Mar-19 16:00 | 8 Hours
Continuous |
23.80L (74s Janet - ENMAX 23),23.4TR (ENMAX 23),23.80L. 23.4TR | repair hotspot on SW84@23sub. 23MD138-23.4TR West phase not closing | |
| ALTALINK | 04-Mar-19 10:30 | 04-Mar-19 17:30 | 7 Hours
Daily |
63s452 GOI,63s 452 (63s Red Deer) | 240kV breaker maintenance | |
| EPCOR | 04-Mar-19 12:00 | 04-Mar-19 16:00 | 4 Hours
Continuous |
805s J2404 (805s Jasper),J2404 @ Jasper | Nait Tour | |
| ALTALINK | 05-Mar-19 08:00 | 05-Mar-19 15:00 | 7 Hours
Daily |
118s754E (Affecting 754L) GOI,118s 754E (118s Canmore),754L (118s Canmore - 437s Baymag) | Replace strain insulators on 754L at 118s | |
| ALTALINK, EPCOR | 08-Mar-19 07:00 | 18-Mar-19 18:00 | 10.42 Days
Continuous |
809L (510s - 320p) EPCOR - Advice,809L (320p Keephills - 510s Sunnybrook) | Stringing new 12L41 overtop | |
| ALTALINK | 09-Mar-19 06:00 | 28-Mar-19 18:00 | 19.46 Days
Continuous |
1241L (510s - A939s) - GOI | Stringing from 510s 'A' Frame dead end to 1241L Structure #1 and installing new 240 MVAR reactor; Open Points 'C' & 'F' will also be closed under this outage | |
| ENMAX | 11-Mar-19 08:00 | 12-Mar-19 16:00 | 1.33 Days
Continuous |
65B240-D135 | Remediate Bird Mess Inside Insulating Blankets [AVANTIS]. | |
| EPCOR, ALTALINK | 11-Mar-19 10:00 | 11-Mar-19 17:00 | 7 Hours
Continuous |
908L-E Outage @ E816S Petrolia S/S and 89S,908L (89s Ellerslie - 816s Petrolia) | DFR upgrade | |
| ALTALINK | 11-Mar-19 10:00 | 14-Mar-19 15:00 | 3.21 Days
Continuous |
310p1252 GOI,310p 1252 (310p Sundance) | Migrate and commission all 310P1252 associated breaker and breaker fail alarms, status, controls, metering and remote access to new RTU and LAN. | |
| ATCO | 11-Mar-19 10:00 | 20-Mar-19 17:00 | 9.29 Days
Continuous |
7L63 (788s Hotchkiss - 783s Cadotte River),7L63 | 7L63 crossarm replacements | |
| ALTALINK | 11-Mar-19 11:00 | 21-Mar-19 12:00 | 10.04 Days
Continuous |
310p452 GOI | Breaker fail protection replacement | |
| ATCO | 11-Mar-19 12:00 | 14-Mar-19 17:00 | 3.21 Days
Continuous |
7L794,7L794 (157s Lac La Biche - 819s Whitby Lake) | 7L794 pole changes | |
| ALTALINK | 11-Mar-19 13:00 | 14-Mar-19 17:00 | 3.17 Days
Continuous |
719L) GOI,575s 138kV Bus 1 (T1 | Replace 138kV VTs (575s20), Maintain 575s719N | |
| ALTALINK | 12-Mar-19 07:00 | 06-Apr-19 18:00 | 25.46 Days
Continuous |
1212L (89s - 12s) - GOI | Spacer and damper replacement on Structures # 4 - 191 | |
| EPCOR | 12-Mar-19 08:00 | 12-Mar-19 17:00 | 9 Hours
Continuous |
J2408 @ Jasper - J240C1 CAP BANK - NIS,805s J2408 (805s Jasper),805s C1 (805s Jasper) | breaker repair | |
| ALTALINK | 12-Mar-19 08:00 | 14-Mar-19 16:00 | 2.33 Days
Continuous |
520s T1 (520s Bennett),1201L (520s Bennett - BCH Cranbrook) | Install Oil filter on Tx18413 | AB-BC |
| MONTANA | 12-Mar-19 08:00 | 14-Mar-19 16:00 | 2.33 Days
Continuous |
MATL (120s Picture Butte - Montana) | Install Oil filter on Tx18413 | AB-MATL |
| ATCO | 12-Mar-19 08:30 | 12-Mar-19 12:00 | 3.5 Hours
Continuous |
930S Synchronous Condenser,930S 702T | To remove bird nests on the structures in the 13.8 KV bus work around 406R and 402TD1. | |
| ATCO | 12-Mar-19 09:00 | 14-Mar-19 14:00 | 2.21 Days
Continuous |
834S 708 | Leak Detection and Repair with ABB Manufacturer representative on Site, 708 OOS for the Duration of the work | |
| EPCOR, ALTALINK | 13-Mar-19 07:00 | 14-Mar-19 17:00 | 1.42 Days
Continuous |
1044L (805s Jasper - 816s Petrolia),1044L Outage @ E816S Petrolia S/S and E805S Jasper S/S | DFR Upgrade | |
| ENMAX | 13-Mar-19 08:00 | 13-Mar-19 16:00 | 8 Hours
Continuous |
65B240-D134 | Counter Repair Near and Center Phases | |
| EPCOR | 13-Mar-19 08:00 | 14-Mar-19 17:00 | 1.38 Days
Continuous |
TX1 @ East industrial,52s T1 (52s East Industrial) | 240CVT41 replacement | |
| ALTALINK | 14-Mar-19 14:00 | 21-Mar-19 16:00 | 7.08 Days
Continuous |
902L (19s Wabamun - 310p Sundance),1046L (338s Cherhill - 19s Wabamun),902L/1046L (310p - 19s - 338s) - GOI | Valard will be closing temporary Open Point 'A', 'B' & 'C' and removing temporary bypass between 902L & 1046L | |
| ENMAX, ALTALINK | 16-Mar-19 08:00 | 17-Mar-19 18:00 | 1.42 Days
Continuous |
7.82L. ZPT138-Z32,7PT138-Z32 (ENMAX 7),7.82L (42s Sarcee - ENMAX 7) | P#1787. 7 sub transformer upgrade Phase 3. Initial energization of 7B138-7BT3 | |
| EPCOR | 18-Mar-19 07:00 | 19-Mar-19 17:00 | 1.42 Days
Continuous |
1055L Outage @ E816S Petrolia S/S and E814S Bellamy S/S,1055L (816s Petrolia - 629s Argyll Transfer Station) | DFR Upgrade | |
| ATCO | 18-Mar-19 08:00 | 21-Mar-19 17:00 | 3.38 Days
Continuous |
9L59,9L59 (972s Tinchebray - 801s Anderson) | 9L59- GOI permit for Clearance Mitigation
6 more structures left to change for clearance Mitigation. |
|
| SUNCOR | 18-Mar-19 08:00 | 24-Mar-19 18:00 | 6.42 Days
Continuous |
29PL9-13 (29EDD-34 - 29EDD-65) | broken strand repair | |
| ATCO | 19-Mar-19 08:00 | 20-Mar-19 17:00 | 1.38 Days
Continuous |
7L760 (7L760D2 - 767s Oyen),7L760 | to install DLR systems/wind and weather monitors | |
| ALTALINK | 19-Mar-19 08:00 | 21-Mar-19 16:00 | 2.33 Days
Continuous |
50L (44s Bearspaw Plant - ENMAX 21),50L (44s-C21s) - GOI | 50L vault inspection | |
| ALTALINK | 19-Mar-19 08:15 | 19-Mar-19 12:45 | 4.5 Hours
Daily |
788L (157s Lac La Biche - 788L Tap),788L (157s-704L106B) - GOI | High Load Move - 8.72 meters high - moving from Lloydminster to Elinor Lake Resort - NW-20-65-11-4; travel under 788 Line between structures 7 & 8 over hwy 55/36 | |
| ALTALINK | 19-Mar-19 08:30 | 19-Mar-19 16:00 | 7.5 Hours
Daily |
42s60 (T2) GOI,42s T2 (42s Sarcee) | Maintain 138kV SF6 breaker | |
| EPCOR, ALTALINK | 20-Mar-19 07:00 | 21-Mar-19 17:00 | 1.42 Days
Continuous |
1139L Outage @ E816S Petrolia S/S and 367S,1139L (367s Harry Smith - 816s Petrolia) | DFR Upgrade | |
| ALTALINK | 20-Mar-19 08:00 | 21-Mar-19 12:00 | 28 Hours
Continuous |
310p 240 kV B Bus GOI | Breaker fail trip testing | |
| Lethbridge | 21-Mar-19 08:00 | 21-Mar-19 16:00 | 8 Hours
Continuous |
813L (241s Lethbridge Uplands - 146s Lethbridge MacDonald) | replace substation transformer | |
| ALTALINK, Lethbridge | 21-Mar-19 08:00 | 21-Mar-19 16:00 | 8 Hours
Continuous |
734L (241s Lethbridge Uplands - 370s North Lethbridge) | replace substation transformer | |
| ALTALINK | 21-Mar-19 13:00 | 21-Mar-19 16:00 | 3 Hours
Daily |
310p552 Advice | Breaker fail trip testing from 310p452 | |
| EPCOR | 25-Mar-19 07:00 | 26-Mar-19 17:00 | 1.42 Days
Continuous |
Tx1 Outage @ E816S Petrolia S/S,816s T1 (816s Petrolia) | DFR upgrade | |
| ATCO | 25-Mar-19 08:00 | 28-Mar-19 17:00 | 3.38 Days
Continuous |
7L32,7L32 (862s South Bezanson - 813s Little Smoky) | Replace rotten cross arms from inspection | |
| ALTALINK | 25-Mar-19 10:00 | 28-Mar-19 16:00 | 3.25 Days
Continuous |
919L (310p - 77s) Advice,919L (310p Sundance - 77s Sagitawah) | migrate and commission protections to new RTU and LAN | |
| ATCO | 25-Mar-19 10:00 | 03-Apr-19 17:00 | 9.29 Days
Continuous |
7L63 (788s Hotchkiss - 783s Cadotte River),7L63 | 7L63 crossarm replacements | |
| ALTALINK | 26-Mar-19 08:00 | 28-Mar-19 19:00 | 2.46 Days
Continuous |
61s836N (Affecting 836L) GOI,836L (61s Lodgepole - 283s Violet Grove) | replace CT’s for 61s836N | |
| ALTALINK | 26-Mar-19 08:30 | 26-Mar-19 16:00 | 7.5 Hours
Daily |
113L (20s Ghost - 33s Spray),113L (20s-33s) - GOI | Maintain 33s113 & 20s113 breakers | |
| EPCOR | 27-Mar-19 07:00 | 28-Mar-19 17:00 | 1.42 Days
Continuous |
816s T2 (816s Petrolia),Tx2 Outage @ E816S Petrolia S/S | DFR upgrade | |
| ALTALINK | 27-Mar-19 08:00 | 27-Mar-19 16:00 | 8 Hours
Daily |
33s76 (76L) GOI,76L (115s Mt. Allan - 33s Spray) | Maintain 138kV SF6 gas breaker | |
| ENMAX | 29-Mar-19 12:01 | 29-Mar-19 18:00 | 5.98 Hours
Continuous |
28.80L. 28.2TR. 28PT138-Z31 | Spring Substation Washing 28.80, 28.2, Z31 | |
| ALTALINK | 30-Mar-19 06:00 | 31-Mar-19 18:00 | 1.5 Days
Continuous |
197L and 349s Station - GOI | Cutting in the new portion of 197L | |
| ALTALINK, ATCO | 01-Apr-19 08:00 | 02-Apr-19 18:00 | 1.42 Days
Continuous |
789L (818s-602L1) - GOI,789L (818s Winefred - 898s Heart Lake) | Connect New 789BL to 789L (Close Open Point 'A') | |
| ALTALINK | 01-Apr-19 08:00 | 02-Apr-19 18:00 | 1.42 Days
Continuous |
1117L (898s Heart Lake - 167s Ipiatik Lake),1117L (167s-A898s) - GOI | Required due to proximity for connecting New 789BL to 789L (Parallel Right Of Way) | |
| ALTALINK | 01-Apr-19 08:00 | 31-May-19 17:00 | 60.38 Days
Continuous |
251s352 & 240 kV Bus 1 GOI | Construct new equipment for connection to 1018s Shamrock | |
| SUNCOR | 01-Apr-19 08:00 | 16-Jun-19 18:00 | 76.42 Days
Continuous |
29EDD-1 29EDD1S1452 (29EDD-1 Millennium),29EDD-1 29EDD1s952 (29EDD-1 Millennium),29EDD-1 29EDD1s1052 (29EDD-1 Millennium),29EDD-1 29EDD1s852 (29EDD-1 Millennium),29EDD-1 952_102 (29EDD-1 Millennium),29EDD-1 952_101 (29EDD-1 Millennium),29EDD-1 952_104 (29EDD-1 Millennium),29EDD-1 Millennium | 5 years maintenance | |
| ALTALINK | 01-Apr-19 10:00 | 01-Apr-19 13:00 | 3 Hours
Continuous |
725BL (725BL54 - 240s McBride Lake),725L (15s Fort MacLeod - 725BL54) | replace 138KV Breaker | |
| ALTALINK | 01-Apr-19 10:00 | 04-Apr-19 16:00 | 3.25 Days
Continuous |
310p1452 & 310p1552 GOI,310p 1452 (310p Sundance),310p 1552 (310p Sundance) | migrate and commission protections to new RTU and LAN | |
| ALTALINK | 01-Apr-19 10:00 | 05-Apr-19 17:00 | 4.29 Days
Continuous |
87s1252 GOI (914L North),914L (86s Bigstone - 87s Gaetz) | Replace 87s Gaetz - 914L/L9 A & B line protections. Affects 914L North. | |
| ALTALINK | 01-Apr-19 10:00 | 18-Apr-19 08:00 | 16.92 Days
Continuous |
725L (L674s-15s) Open End - LETHBRIDGE I | Replace 674S725W switch and supporting pad | |
| ALTALINK, Lethbridge | 01-Apr-19 10:00 | 18-Apr-19 08:00 | 16.92 Days
Continuous |
725L (674s Lethbridge Bowron - 725BL54) | replace 674S725W switch | |
| ALTALINK | 01-Apr-19 12:00 | 01-Apr-19 17:30 | 5.5 Hours
Daily |
725L (15s - L674s - I_240s) - GOI | Creating Open Point 'A' @ Structure #103 | |
| ALTALINK | 01-Apr-19 16:30 | 18-Apr-19 08:30 | 16.67 Days
Continuous |
725L (Open Point 'A' - L674s) - GOI | Component replacements 725L Str's Range 137-309 | |
| ENMAX, ALTALINK | 02-Apr-19 12:00 | 02-Apr-19 18:00 | 6 Hours
Continuous |
36.3TR (ENMAX 36),36.1TR (ENMAX 36),7.84L (ENMAX 36 - ENMAX 7),7.84L. 36.81L. 36.1TR. 36.3TR. 36PT138-Z31. 7PT138-7.84,36.81L (44s Bearspaw - ENMAX 36) | spring substation washing | |
| EPCOR | 08-Apr-19 07:00 | 08-Apr-19 17:00 | 10 Hours
Continuous |
CDDS14 @ Castledowns - 920L (71S - E57S) NIS | Disconnect repair | |
| EPCOR | 08-Apr-19 08:00 | 12-Apr-19 17:00 | 4.38 Days
Continuous |
987s C2401 (987s Clover Bar),C2401 @ Cloverbar | Breaker Maint | |
| ATCO | 08-Apr-19 09:00 | 12-Apr-19 16:00 | 4.29 Days
Continuous |
807s 902 (807s Sheerness),807s 902T (807s Sheerness),807S 902 | 807S Sheerness BREAKER MIN OIL HLR PARTIAL TESTING Complete Partial PM on Breaker 902 at 807,807S Sheerness BREAKER MIN OIL HLR PARTIAL TESTING Complete Partial PM on Breaker 902 at 807S,807S Sheerness BREAKER MIN OIL HLR PARTIAL TESTING Complete Partial PM on Breaker 902 at 807S |
|
| ALTALINK | 08-Apr-19 09:00 | 12-Apr-19 17:00 | 4.33 Days
Continuous |
498s666 GOI (affecting 666L),666L (498s Tilley - 28s West Brooks),498s 666 (498s Tilley) | 498s666 outage to replace 3 CT’s. Outage April 9-11 0900- 1630 continuous. | |
| BCH | 08-Apr-19 09:00 | 12-Apr-19 17:00 | 4.33 Days
Continuous |
5L52 (Ingledow - Custer) | ING 5CB6 inspection and doble | AB-BC |
| ATCO | 08-Apr-19 09:00 | 17-Apr-19 13:00 | 9.17 Days
Continuous |
7L20,7L20 (810s Dome Cutbank - 740s H.R.Milner) | Changing over rated XARMS | |
| ALTALINK, EPCOR | 08-Apr-19 10:00 | 11-Apr-19 16:00 | 3.25 Days
Continuous |
1045L (310p-805s) Advice,1045L (310p Sundance - 320p Keephills - 805s Jasper) | Migrate and commission all L6 – 1045L at 310P Sundance associated line protections, breakers, breaker fail and Tele-protection alarms, status, controls, metering and remote access to new RTU and LAN. Migrate and commission CVT-L6 alarms. | |
| ALTALINK | 08-Apr-19 10:00 | 12-Apr-19 17:00 | 4.29 Days
Continuous |
914L (87s Gaetz - 63s Red Deer),87s1652 GOI (914L) | Replace 87s Gaetz - 914L/L12 A & B line protections. Affects 914L. | |
| ENMAX, ALTALINK | 09-Apr-19 08:00 | 09-Apr-19 18:00 | 10 Hours
Continuous |
20.82L (ENMAX 21 - ENMAX 20),21.80L. 20.82L. TAU CAP. 21.1TR. 21.4TR,21.80L (42s Sarcee - ENMAX 21),21.1TR (ENMAX 21),21.4TR (ENMAX 21) | spring substation washing. Altalink required to pull CAP VOLT PT fuses | |
| SUNCOR | 09-Apr-19 08:00 | 10-Apr-19 17:00 | 1.38 Days
Continuous |
635PT-1001 (635EDD-1000) | investigate and clean the oil leak | |
| ENMAX | 11-Apr-19 08:00 | 11-Apr-19 18:00 | 10 Hours
Continuous |
24PT138-Z31. 24.81L. 24.83L. 24B138-24BT3. 24.1TR | Spring Substation Washing | |
| SUNCOR | 11-Apr-19 08:00 | 12-Apr-19 17:00 | 1.38 Days
Continuous |
635PT-1000 (635EDD-1000) | Investigate transformer high temperature alarm | |
| BCH | 11-Apr-19 09:00 | 18-May-19 17:00 | 37.33 Days
Continuous |
5L71 (Mica Creek - Nicola) | Placeholder for MCA Switchgear Roof Replacement. | AB-BC |
| ENMAX, ALTALINK | 14-Apr-19 08:00 | 22-Apr-19 18:00 | 8.42 Days
Continuous |
7.82L (42s Sarcee - ENMAX 7),7.82L. ZPT138-Z32 | P#1787. 7 sub transformer upgrade Phase 3. Line Protection Upgrade | |
| EPCOR | 15-Apr-19 07:00 | 19-Apr-19 17:00 | 4.42 Days
Continuous |
557s T1 (557s Castle Downs),TX1 @ Castledowns | Doble / SFRA | |
| EPCOR | 15-Apr-19 08:00 | 19-Apr-19 17:00 | 4.38 Days
Continuous |
987s C2403 (987s Clover Bar),C2403 @ Cloverbar | Breaker Maint | |
| BCH | 15-Apr-19 09:00 | 03-May-19 17:00 | 18.33 Days
Continuous |
5L71 (Mica Creek - Nicola) | Spacer Replacement: 5L71 Outage | AB-BC |
| ALTALINK | 15-Apr-19 12:00 | 15-Apr-19 16:00 | 4 Hours
Daily |
895s2219 - GOI | Maintain 25kV vacuum breaker | |
| ATCO | 16-Apr-19 09:00 | 16-Apr-19 13:00 | 4 Hours
Continuous |
7L132,7L760,767S 700PT1 | 767S Oyen 700PT1 PCB oil sample required, Also PM work on 701 Breaker & Hot Spot Repairs on 701A. Oyen Area on 6L09 System for the duration of the work |
|
| ALTALINK | 16-Apr-19 09:00 | 16-Apr-19 16:00 | 7 Hours
Daily |
336s612 (612L) GOI,612L (336s Fincastle - 368s Burdett) | Maintain 138kV SF6 gas breaker | |
| ALTALINK | 18-Apr-19 07:30 | 18-Apr-19 15:30 | 8 Hours
Daily |
725L (15s - L674s - I_240s) - GOI | Closing Open Point 'A' @ Structure #103 and perform maintenance on 725BL54 | |
| ALTALINK | 18-Apr-19 08:00 | 18-Apr-19 14:00 | 6 Hours
Continuous |
725BL (725BL54 - 240s McBride Lake),725L (15s Fort MacLeod - 725BL54) | replace 138KV Breaker | |
| ALTALINK | 18-Apr-19 08:00 | 18-Apr-19 16:00 | 8 Hours
Daily |
725L (L674s-15s-I_240s) Advice to COL | Install conductor between 674S1 and 674S3 and energize new 674S725W. | |
| EPCOR | 22-Apr-19 08:00 | 26-Apr-19 17:00 | 4.38 Days
Continuous |
C2404 @ Cloverbar,987s C2404 (987s Clover Bar) | Breaker Maint | |
| ALTALINK | 23-Apr-19 08:00 | 09-May-19 08:00 | 16 Days
Continuous |
725L (L674s-L111s-618s) Open End - LETHB | Replace 674S725E switch and supporting pad | |
| ALTALINK, Lethbridge | 23-Apr-19 10:00 | 23-Apr-19 13:00 | 3 Hours
Continuous |
725L (111s Coalbanks - 674s Lethbridge Bowron),725AL (618s Riverbend - 725L tap) | replace 674S725E switch | |
| ALTALINK | 23-Apr-19 12:00 | 03-May-19 18:00 | 10.25 Days
Continuous |
725L (L674s - 618s - L111s) - GOI | Component Replacements: (725AL Str's Range 1-13) and (725L Str's Range 310-367) | |
| ALTALINK, Lethbridge | 23-Apr-19 13:00 | 09-May-19 08:00 | 15.79 Days
Continuous |
725L (111s Coalbanks - 674s Lethbridge Bowron) | replace 674S725E switch | |
| ALTALINK | 25-Apr-19 08:30 | 29-Apr-19 17:30 | 4.38 Days
Continuous |
20s 138kV South Bus & T1 Advice,150L (42 Sarcee - 20s Ghost Plant),20s T1 (20s Ghost),113L (20s Ghost - 33s Spray),859L (20s Ghost - T793s Horse Creek),20s Ghost 138 kV South Bus | replace 20s149, 20s153s, T1 CT’s replace bus conductor and strain insulators | |
| EPCOR | 29-Apr-19 08:00 | 03-May-19 17:00 | 4.38 Days
Continuous |
803s L2401 (803s Lambton),L2401 @ Lambton | breaker maintenance | |
| ALTALINK | 29-Apr-19 08:30 | 01-May-19 17:30 | 2.38 Days
Continuous |
113L(20s-33s) GOI,113L (20s Ghost - 33s Spray) | finish work on 20s155s | |
| ATCO | 29-Apr-19 09:00 | 01-May-19 16:30 | 2.31 Days
Continuous |
715S 704,7L95,715s 704 (715s Leming Lake),7L95 (889s Mahkeses - 715s Leming Lake) | Breaker Maintenance & tie in bus lockout logic
NOT SENT FOR STUDY |
|
| BCH | 29-Apr-19 09:00 | 10-May-19 17:00 | 11.33 Days
Continuous |
5L71 (Mica Creek - Nicola) | Spacer Replacement: 5L71 Outage | AB-BC |
| ENMAX | 01-May-19 08:00 | 13-May-19 16:00 | 12.33 Days
Continuous |
162s 240KV Bus. PT-Z42 | Fall Substation Washing. Upgrade Protection on 2-GSU-XF-0002 | |
| EPCOR | 06-May-19 08:00 | 06-May-19 17:00 | 9 Hours
Continuous |
12BU2 Zone @ Genesee,330P 12TC2 (330p Genesee),330p Genesee 500 kV Bus 2 | doble | |
| EPCOR | 06-May-19 08:00 | 10-May-19 17:00 | 4.38 Days
Continuous |
L2402 @ Lambton,803s L2402 (803s Lambton) | breaker maintenance | |
| ALTALINK | 06-May-19 09:00 | 09-May-19 18:00 | 3.38 Days
Continuous |
725L (L674s - 618s - L111s) - GOI | Component Replacements: (725AL Str's Range 1-13) and (725L Str's Range 310-367) | |
| EPCOR | 07-May-19 08:00 | 07-May-19 17:00 | 9 Hours
Continuous |
330P Genesee 500 kV Bus 1,330P 12TC1 (330p Genesee),12BU1 zone @ Genesee | doble | |
| EPCOR | 08-May-19 08:00 | 08-May-19 17:00 | 9 Hours
Continuous |
8L09 Zone @ Genesee | Doble | |
| ALTALINK | 09-May-19 08:00 | 09-May-19 14:00 | 6 Hours
Daily |
725L (L674s-L111s-618s) Advice to COL | Install conductor between 674S10 and 674S12 and energize new 674S725E switch | |
| 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 | |
| EPCOR | 09-May-19 08:00 | 09-May-19 17:00 | 9 Hours
Continuous |
1209 @ Genesee,330p 1209 (330p Genesee) | doble | |
| EPCOR | 10-May-19 08:00 | 10-May-19 17:00 | 9 Hours
Continuous |
330p 1204 (330p Genesee),1204 @ Genesee | doble | |
| EPCOR | 13-May-19 07:00 | 21-May-19 17:00 | 8.42 Days
Continuous |
330p 1202 (330p Genesee),330p 1203 (330p Genesee),12BU1 Outage @ 330P Genesee S/S | relay maintenance | |
| ALTALINK | 13-May-19 09:30 | 13-Jun-19 18:00 | 31.35 Days
Continuous |
89s T2 (89s Ellerslie),89s T2(TX18727/28/33) GOI | transformer maintenance: 240kV bushing leaks, Conservator Valve Leaks | |
| EPCOR | 14-May-19 08:00 | 14-May-19 17:00 | 9 Hours
Continuous |
L2405 @ Lambton,803s L2405 (803s Lambton) | doble | |
| EPCOR | 16-May-19 08:00 | 16-May-19 17:00 | 9 Hours
Continuous |
1055L (816s Petrolia - 629s Argyll Transfer Station),1055L @ Petrolia | Doble | |
| EPCOR, ALTALINK | 17-May-19 08:00 | 17-May-19 17:00 | 9 Hours
Continuous |
1044L @ Petrolia,1044L (805s Jasper - 816s Petrolia) | Doble | |
| EPCOR | 20-May-19 08:00 | 24-May-19 17:00 | 4.38 Days
Continuous |
809 BKR @ Genesee - TIE TX2 NIS | Breaker Maint | |
| ALTALINK | 21-May-19 09:30 | 30-May-19 17:00 | 9.31 Days
Continuous |
42s T1 (Tx18508) GOI,42s T1 (42s Sarcee) | replace 42s40 | |
| 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 | |
| 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 | 27-May-19 08:00 | 31-May-19 17:00 | 4.38 Days
Continuous |
330p 807 (330p Genesee),807 BKR @ Genesee | breaker maintenance | |
| ALTALINK | 29-May-19 08:00 | 29-May-19 16:30 | 8.5 Hours
Daily |
33s 2 (33s Spray) | maintain 138kV SF6 gas breaker | |
| ATCO | 01-Jun-19 07:00 | 02-Jun-19 17:00 | 1.42 Days
Continuous |
959s 900BS1,959s 901T (959s Lanfine),959s 901T | Attach new bay for 9L172 to Oyen Wind Power | |
| ATCO | 03-Jun-19 08:00 | 02-Aug-19 16:00 | 60.33 Days
Continuous |
840S McNeill Station | Protection Upgrade Project | AB-SK |
| 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 |
| ATCO | 06-Jun-19 07:00 | 07-Jun-19 17:00 | 1.42 Days
Continuous |
766S 701,766S 901T | RAS modifications for the Oyen Wind Power project | |
| EPCOR | 10-Jun-19 08:00 | 21-Jun-19 17:00 | 11.38 Days
Continuous |
330P 12TC2 (330p Genesee),TX2 @ Genesee | DGA upgrade | |
| ATCO | 16-Jun-19 07:00 | 17-Jun-19 17:00 | 1.42 Days
Continuous |
767S 702,767s 702 (767s Oyen),7L760 (7L760D2 - 767s Oyen),7L760 | RAS modifications for the Oyen Wind Power project | |
| EPCOR | 24-Jun-19 07:00 | 12-Jul-19 17:00 | 18.42 Days
Continuous |
CV5 (557s Castle Downs - 511s Victoria),CV5 @ Castledowns & Victoria | CV5 Inspections | |
| EPCOR | 24-Jun-19 07:00 | 26-Jul-19 17:00 | 32.42 Days
Continuous |
240BA2 (814s Bellamy - 629s Argyll Transfer Station),240BA2 @ Bellamy & Argyll - 1056L NIS | degas | |
| SUNCOR | 01-Jul-19 08:00 | 21-Jul-19 18:00 | 20.42 Days
Continuous |
29EDD-3 29Edd-3 | maintenance | |
| SUNCOR | 01-Jul-19 08:00 | 21-Jul-19 18:00 | 20.42 Days
Continuous |
30EDD-2 | 5 year maintenance | |
| SUNCOR | 01-Jul-19 08:00 | 28-Jul-19 18:00 | 27.42 Days
Continuous |
29EDD-1 Millennium | 5 year maintenance | |
| SUNCOR | 01-Jul-19 09:00 | 21-Jul-19 18:00 | 20.38 Days
Continuous |
30EDD-2 | maintenance & testing on breaker | |
| EPCOR, ALTALINK | 02-Jul-19 08:00 | 02-Jul-19 17:00 | 9 Hours
Continuous |
920L W @ Castledowns & North Calder,920L (37s North Calder - 557s Castle Downs) | doble | |
| EPCOR, ALTALINK | 04-Jul-19 08:00 | 05-Jul-19 17:00 | 1.38 Days
Continuous |
915L @ Cloverbar & East Edmonton,915L (38s East Edmonton - 987s Clover Bar) | doble | |
| EPCOR, ALTALINK | 08-Jul-19 08:00 | 09-Jul-19 17:00 | 1.38 Days
Continuous |
947L (89s Ellerslie - 987s Clover Bar),947L @ Cloverbar & Ellerslie | Doble | |
| ATCO | 17-Jul-19 08:00 | 23-Jul-19 17:00 | 6.38 Days
Continuous |
834S 902T,834s 902 (834s Wesley Creek),834s 903 (834s Wesley Creek),834s 902T (834s Wesley Creek) | 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 705 (791s Rainbow Lake),7L29 (850s Rainbow Cogen - 791s Rainbow Lake) | Test new RB4 protection | |
| SUNCOR | 22-Jul-19 08:00 | 04-Aug-19 18:00 | 13.42 Days
Continuous |
29EDD-1 Millennium | 5 year maintenance | |
| EPCOR, ALTALINK | 02-Aug-19 08:00 | 02-Aug-19 17:00 | 9 Hours
Continuous |
1239L @ Genesee,1239L (510s Sunnybrook - 330p Genesee) | Doble | |
| SUNCOR | 12-Aug-19 08:00 | 08-Sep-19 18:00 | 27.42 Days
Continuous |
30EDD-1 | 5 year 624T transformer maintenance and repair | |
| SUNCOR | 16-Aug-19 08:00 | 29-Sep-19 18:00 | 44.42 Days
Continuous |
29EDD-56 | 5 year maintenance | |
| ENMAX, ALTALINK | 19-Aug-19 08:00 | 13-Sep-19 16:00 | 25.33 Days
Continuous |
932L,932L (74s Janet - 162s Beddington) | Line Protection Upgrade | |
| ATCO | 28-Aug-19 07:00 | 02-Sep-19 17:00 | 5.42 Days
Continuous |
766s 701 (766s Nevis),766s 901T (766s Nevis),766S 901T,766S 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 |
| ATCO | 13-Sep-19 07:00 | 18-Sep-19 17:00 | 5.42 Days
Continuous |
767S 702,7L760,7L760 (7L760D2 - 767s Oyen),796s 702 (796s Nipisi) | RAS modifications for the pattern Lanfine WAGF project | |
| 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 | |
| ATCO | 19-Sep-19 08:00 | 05-Dec-19 16:00 | 77.38 Days
Continuous |
740S 703T,740S 144Kv Main Bus | Install new 703T and reconfigure main bus | |
| SUNCOR | 30-Sep-19 08:00 | 03-Nov-19 18:00 | 34.46 Days
Continuous |
29PL9-5 (29EDD-1 Millennium - 29EDD-34),29PL9-6 (29EDD-1 Millennium - 29EDD-34) | 5 year maintenance | |
| ENMAX | 07-Oct-19 08:00 | 25-Oct-19 16:00 | 18.33 Days
Continuous |
24.83L | Transmission Line Relocate | |
| ALTALINK | 09-Oct-19 07:30 | 09-Oct-19 12:29 | 4.98 Hours
Daily |
526s152 (7L129) GOI | tank heater repair | |
| ALTALINK | 09-Oct-19 12:30 | 09-Oct-19 17:30 | 5 Hours
Daily |
526s252 (7L50) GOI | tank heater repair | |
| ENMAX | 11-Oct-19 08:00 | 27-Oct-19 18:00 | 16.42 Days
Continuous |
25s. 1GSU GT1 | HV SW MD maint SW133, | |
| ATCO | 17-Oct-19 08:00 | 01-Nov-19 16:00 | 15.33 Days
Continuous |
740s 701 (740s H.R. Milner),740s 701T (740s H.R.Milner),740S 701 | replace breaker and re conductor switches | |
| ENMAX | 02-Nov-19 08:00 | 30-Nov-19 18:00 | 28.46 Days
Continuous |
25s. 2GSU GT2 | HV SW MD maint SW138, SW139, | |
| ATCO | 07-Nov-19 07:00 | 07-Nov-19 17:00 | 10 Hours
Continuous |
9L93,9L93 (972s Tinchebray - 615s Halkirk) | 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),918L | line protection upgrade | |
| ATCO | 05-Dec-19 08:00 | 19-Dec-19 16:00 | 14.33 Days
Continuous |
740S 704,7L20 | replace breaker and re conductor switches | |
| ATCO | 07-Dec-19 07:00 | 12-Dec-19 17:00 | 5.42 Days
Continuous |
Halkirk Wind Farm,9L93 | Reroute OPGW test and commission. | |
| ATCO | 07-Jan-20 08:00 | 27-Jan-20 17:00 | 20.38 Days
Continuous |
834S 902T | Three Creeks Project
Install the 240 kV switches |
|
| ATCO | 13-Jan-20 08:00 | 17-Jan-20 17:00 | 4.38 Days
Continuous |
7L131 | 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 | Outage for Garden Plain Wind Project | |
| ATCO | 20-Jan-20 08:00 | 24-Jan-20 17:00 | 4.38 Days
Continuous |
7L106 | 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 | Line Protection Upgrade | |
| ATCO | 06-Mar-20 07:00 | 13-Mar-20 17:00 | 7.38 Days
Continuous |
9L101 | 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 | 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 | |
| SUNCOR | 14-Sep-20 09:00 | 20-Sep-20 18:00 | 6.38 Days
Continuous |
29PL9-2 (29EDD-1 Millennium - 848s Ruth Lake) | maintenance on 29CTT-1 in 29EDD-1 | |
| SUNCOR | 14-Sep-20 09:00 | 20-Sep-20 18:00 | 6.38 Days
Continuous |
29EDD-1 Millennium | 5 and 10 year maintenance | |
| ATCO | 22-Oct-20 07:00 | 27-Oct-20 17:00 | 5.42 Days
Continuous |
7L77,7L65 | 7L65 Rebuild Project | |
| 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,9L912,9L20 | 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: | 2019-02-13 2:14:19 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 |