Alberta Electric System Operator
System Co-ordination Plan
2021-10-28 to 2021-11-05
Approved Outages

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From To Owner Type Element Scheduled Activity Date/Time Comments Interconnection
05-Oct-18 08:00 31-Dec-21 16:00 EPCOR IO C2 (Rossdale) forced outage 1,183.38 Days
Continuous		  
24-Oct-18 01:13 31-Dec-21 16:00 EPCOR IO C1 (Rossdale) forced outage 1,164.66 Days
Continuous		  
01-Jan-21 08:00 31-Dec-21 18:00 SUNCOR Outage Unmodeled Transmission Facility (Suncor) 30EDD-200, 29EDD-106, 29EDD-141, 29EDD-192 364.42 Days
Daily		  
01-Jan-21 08:00 01-Jan-22 18:00 SUNCOR Outage Unmodeled Transmission Facility (Suncor) 30EDD-200 365.42 Days
Daily		  
01-Jan-21 08:00 11-Jan-22 18:00 SUNCOR Outage Unmodeled Transmission Facility (Suncor) 30EDD-200 375.42 Days
Continuous		  
01-Jan-21 08:00 04-Jan-23 18:00 SUNCOR Outage Unmodeled Transmission Facility (Suncor) 30EDD-200 733.42 Days
Continuous		  
02-Jan-21 08:00 05-Jan-23 18:00 SUNCOR Outage Unmodeled Transmission Facility (Suncor) 29EDD-181
733.42 Days
Continuous		  
05-Jan-21 08:00 01-Jun-23 18:00 SUNCOR Outage Unmodeled Transmission Facility (Suncor) 29PT-69
877.38 Days
Continuous		  
24-Jan-21 08:00 07-Jan-23 18:00 SUNCOR Outage Unmodeled Transmission Facility (Suncor) 29EDD-161
713.42 Days
Continuous		  
02-Feb-21 08:00 10-Jan-23 18:00 SUNCOR Outage Unmodeled Transmission Facility (Suncor) 29EDD-221
707.42 Days
Continuous		  
03-Feb-21 13:00 31-Dec-21 18:00 ATCO IO 757s 703 (757s Battle River) removing CT to replace damaged one on breaker 704 331.21 Days
Continuous		  
24-Feb-21 08:00 11-Jan-23 18:00 SUNCOR Outage Unmodeled Transmission Facility (Suncor) 29EDD-211; substation ground test; PM 5y - 34.5kV 686.42 Days
Continuous		  
01-Mar-21 08:00 03-Feb-23 18:00 SUNCOR Outage Unmodeled Transmission Facility (Suncor) 29EDD-221 ;29PT-605 system 704.42 Days
Continuous		  
01-Mar-21 08:00 04-Feb-23 18:00 SUNCOR Outage Unmodeled Transmission Facility (Suncor) 29EDD-161; 29PT-582 system 705.42 Days
Daily		  
01-Mar-21 08:00 05-Feb-23 18:00 SUNCOR Outage Unmodeled Transmission Facility (Suncor) 29EDD-171; 29PT-600 system 706.42 Days
Daily		  
26-Apr-21 09:00 30-Nov-21 17:00 ATCO TE 809s Louise Creek RTU/SCADA RTU replacement 218.38 Days
Continuous		  
26-Apr-21 13:30 30-Nov-21 13:30 ATCO TE 809s Louise Creek RTU/SCADA RTU replacement 218.04 Days
Continuous		  
29-Apr-21 20:00 29-Oct-21 18:00 ENBRIDGE TE 120s MATL PST (120s Picture Butte) failed "B" protection relay 182.92 Days
Continuous		  
24-May-21 07:00 01-Nov-21 17:00 EPCOR TE 805S Jasper system being upgraded and tested to accommodate future upgrade to ADMS system 161.42 Days
Daily		  
12-Jul-21 08:00 13-Dec-21 16:00 ATCO TE 809S Louise Creek Louise Creek sub rebuild project -
installation, wiring and commissioning of new BF relays in subsequent outages		 154.38 Days
Continuous		  
03-Aug-21 17:01 07-Dec-21 17:00 EPCOR Outage T1 (EPCOR Hardisty) Hardisty T1 replacement 126.04 Days
Continuous		  
13-Aug-21 09:00 31-Oct-21 17:00 ATCO TE 7L101 (790s Poplar Hill - 944s Lowe Lake) relay blocked after nuisance tripping was caused from a faulty CT wire 79.33 Days
Continuous		  
23-Aug-21 14:11 22-Nov-21 14:11 ATCO TE 718s RTU/SCADA (718s Parsons Creek) RTU config updates 91.04 Days
Continuous		  
30-Aug-21 14:00 30-Nov-21 17:00 ATCO Outage 9L938 (77s Sagitawah - 809s Louise Creek), 809s 902T (809s Louise Creek), 809s 910 (809s Louise Creek), 809s 911 (809s Louise Creek), 809s 912 (809s Louise Creek), 809s 702 (809s Louise Creek) Louise Creek Rebuild project upgrade 902T protection, replace 911 breaker 92.17 Days
Continuous		  
10-Sep-21 12:30 01-Nov-21 16:30 ALTALINK Outage 320p 2089 (320p Keephills) maintenance 52.17 Days
Continuous		  
13-Sep-21 07:00 15-Nov-21 17:00 EPCOR Outage T3 (Poundmaker) 240 kV ring re-configuration (P1649) 63.46 Days
Continuous		  
13-Sep-21 12:15 29-Oct-21 18:00 ALTALINK Outage 437s T1 (437s Baymag) T1 A & B protection replacement 46.24 Days
Continuous		  
14-Sep-21 08:00 08-Nov-21 17:00 ATCO TE 6L03 (775s Sullivan Lake - 6L17 tap) temp settings for line by pass for 775s Sullivan lake 55.42 Days
Continuous		  
14-Sep-21 08:00 08-Nov-21 17:00 ATCO TE 6L12 (775s Sullivan Lake - 6L25 tap) temp settings for line by pass for 775s Sullivan lake 55.42 Days
Continuous		  
16-Sep-21 08:00 08-Nov-21 16:00 ATCO Outage 775S Sullivan Lake, 6L15 (763s Hanna - 775s Sullivan Lake) 775S Sullivan Lake substation rebuild
complete breaker and disconnect switch replacement, 775S Sullivan Lake substation rebuild
complete breaker and disconnect switch replacement
53.38 Days
Continuous		  
21-Sep-21 07:00 30-Nov-21 17:00 EPCOR TE EP 511s VICTORIA, EP 511s RTU/SCADA (EP 511s Victoria) station SA system being upgraded and tested to accommodate future upgrade to ADMS system 70.46 Days
Daily		  
21-Sep-21 07:15 23-Nov-21 17:45 ALTALINK Outage 370s 2552 (370s North Lethbridge), 370s T4 (370s North Lethbridge) isolate bus to provide clearance for new steel and equipment installation 63.48 Days
Continuous		  
27-Sep-21 07:00 12-Nov-21 17:00 EPCOR Outage EP 511s Victoria T5 (EP 511s Victoria), CV5 (EP 511s Victoria - 557s Castle Downs) regasketing Victoria T5 46.46 Days
Continuous		  
27-Sep-21 08:00 29-Oct-21 16:00 ENMAX TE RTU/SCADA (ENMAX 8) RTU upgrade 32.33 Days
Daily		  
03-Oct-21 08:00 05-Nov-21 16:00 ENMAX Outage 40.1TR (ENMAX 40) install new Albarrie, plastibeton, duct banks and cables phasing required on return 33.33 Days
Continuous		  
04-Oct-21 08:01 02-Nov-21 17:00 ATCO Outage 9L02 (809s Louise Creek - 813s Little Smoky), 809s 903 (809s Louise Creek), 809s 910 (809s Louise Creek) Louise Creek rebuild project 29.37 Days
Continuous		  
07-Oct-21 08:00 30-Oct-21 16:00 ALTALINK IO 1.82L OOS for Enmax 5sub TRV Project. Replace circuit breaker 23.33 Days
Continuous		  
07-Oct-21 08:00 30-Oct-21 16:00 ENMAX Outage 1.82L (ENMAX 1 - ENMAX 5), 5B138-1.82 (ENMAX 5) 5sub TRV project: replace circuit breaker 23.33 Days
Continuous		  
12-Oct-21 08:00 21-Nov-21 16:00 ENMAX Outage 2.83L (ENMAX 5 - 2.83L tap) TRV project. replace circuit breaker 40.38 Days
Continuous		  
12-Oct-21 08:00 21-Nov-21 16:00 ALTALINK IO 2.83L OOS for Enmax 5sub TRV Project. Replace circuit breaker, Fall substation washing. 40.38 Days
Continuous		  
12-Oct-21 08:00 01-Nov-21 17:00 ATCO TE 809s 701C (809s Louise Creek), 809s 901T (809s Louise Creek), 809s 902T (809s Louise Creek), 7L19 (809s Louise Creek - 851s Morse River), 7L43 (739s Edith Lake - 809s Louise Creek), 7L55 (743s Sarah Lake - 809s Louise Creek), 7L56 (738s Virginia Hills - 809s Louise Creek), 9L938 (77s Sagitawah - 809s Louise Creek) firmware update 20.38 Days
Continuous		  
12-Oct-21 09:00 05-Nov-21 17:00 BCH Outage 2L112 (Boundary - Nelway) oil containment install, BC Maintenance does not affect the Alberta ATC 24.33 Days
Continuous		 AB-BC
12-Oct-21 09:00 05-Nov-21 17:00 ALTALINK IO 2L112 BCH outage (Info Only) oil containment install 24.33 Days
Continuous		  
18-Oct-21 08:00 29-Oct-21 17:00 ATCO, ALTALINK RB 1035L (244s Bowmanton - 2075s Newell) urgent - completion of damper replacement CRU scope between structures 300 & 367 11.38 Days
Daily		  
18-Oct-21 08:00 29-Oct-21 17:00 ATCO, ALTALINK RB 1035L (244s Bowmanton - 2075s Newell) RB on 9L1035 @ 2075S for completion of damper replacement CRU scope between structures 300 & 367 11.38 Days
Daily		  
18-Oct-21 08:00 29-Oct-21 18:00 ALTALINK Outage 1034L (244s Bowmanton - 324s Cassils) urgent repair damper 11.42 Days
Continuous		  
18-Oct-21 09:00 29-Oct-21 18:00 ALTALINK Outage 1201L (520s Bennett - BCH Cranbrook) components-structure range 383-464 11.38 Days
Continuous		 AB-BC
18-Oct-21 09:00 29-Oct-21 18:00 MONTANA Outage MATL (120s Picture Butte - Montana) align with 1201L outage 11.38 Days
Continuous		 AB-MATL
18-Oct-21 09:30 08-Nov-21 16:00 EPCOR Outage 72LS24 (EP 803s Lambton - Strathcona) Line Maintenance 21.31 Days
Continuous		  
18-Oct-21 12:00 01-Nov-21 11:00 ATCO Outage 7L59 (789s Keg River - 7L59 tap) replace crossarms and replace poles 13.96 Days
Continuous		  
19-Oct-21 07:00 23-Nov-21 18:00 ALTALINK Outage 39s 1052 (39s Bickerdike) addition of new breaker 39s1152 and associated equipmen (P2032) 35.5 Days
Continuous		  
19-Oct-21 07:00 29-Oct-21 18:00 ATCO TE ATCO RTU upgrades, ATCO's system operations centre upgrading the EMS SCADA system 10.46 Days
Continuous		  
20-Oct-21 08:00 30-Oct-21 16:00 CNRL TE 838s Horizon Mining RTU/SCADA RTU replacement 10.33 Days
Continuous		  
21-Oct-21 08:00 04-Nov-21 18:00 SUNCOR Outage 29PL6-3 (29EDD-1 Millennium - 836s Steepbank) line protection upgrade 14.42 Days
Continuous		  
21-Oct-21 08:00 04-Nov-21 18:00 SUNCOR TE 29EDD-1 Millennium RTU/SCADA, 30EDD-1 RTU/SCADA updates to D20MX at 29EDD-1 & 30EDD1 substation to map values to DCS system for 29PL6-3 line upgrade project 14.42 Days
Continuous		  
21-Oct-21 08:15 16-Nov-21 17:45 ALTALINK Outage 225L (225s Magrath - 385s Spring Coulee) rebuilding a portion of 225L from structure 282 to structure 400 26.44 Days
Continuous		  
21-Oct-21 14:53 29-Oct-21 18:00 ATCO Outage 930s Syn Condenser (930s Arcenciel) forced outage 8.13 Days
Continuous		  
22-Oct-21 08:00 05-Nov-21 16:00 ENMAX Outage 5.8TR (ENMAX 5) relay replacement. 5.8TR ground shield ground rerun 14.33 Days
Continuous		  
23-Oct-21 07:00 28-Oct-21 18:00 ALTALINK Outage 795L (121s Brooks - 421s Hays) bird fight diverter installation 5.46 Days
Continuous		  
23-Oct-21 17:25 29-Oct-21 18:30 ALTALINK IO M120s Station GOI annual maintenance routine - in conjunction with south bound and 1201L outage 6.05 Days
Continuous		  
23-Oct-21 18:00 29-Oct-21 18:00 ENBRIDGE, MONTANA Outage 120s MATL PST (120s Picture Butte), 120s C1 (120s Picture Butte), 120s C2 (120s Picture Butte) annual maintenance routine 6 Days
Continuous		 AB-MATL
25-Oct-21 07:00 29-Oct-21 15:00 ALTALINK TE 167s RTU/SCADA (167s Ipiatik Lake) HMI replacement 4.33 Days
Daily		  
25-Oct-21 07:00 05-Nov-21 17:00 ALTALINK, EPCOR Outage 1238L (330p Genesee - 510s Sunnybrook) spire #6 and # 7 repair 11.42 Days
Continuous		  
25-Oct-21 07:00 29-Oct-21 17:00 EPCOR Outage 987s SST2 (987s Clover Bar) clover Bar SDS2L LCR - SST2 work 4.42 Days
Continuous		  
25-Oct-21 07:30 03-Nov-21 17:30 ALTALINK RB 1036L (356s Milo - 554s Travers) safety requirement, re: 1005L GOI 9.42 Days
Daily		  
25-Oct-21 07:30 29-Oct-21 17:30 ALTALINK, EPCOR RB 747L (37s North Calder - 99s North St Albert), 711L (Inland Cement - 747L tap) urgent - line maintenance 4.42 Days
Daily		  
25-Oct-21 08:00 28-Oct-21 17:30 ALTALINK TE 42s RTU/SCADA (42s Sarcee) update RTU configuration 3.4 Days
Daily		  
25-Oct-21 08:00 30-Oct-21 17:00 ATCO, ALTALINK Outage 7L77 (395s North Holden - 709s Vegreville) change arms & insulators 5.38 Days
Continuous		  
25-Oct-21 08:00 29-Oct-21 17:00 ALTALINK TE 199s RTU/SCADA (199s East Airdrie) new configuration in RTUs 4.38 Days
Continuous		  
25-Oct-21 08:00 29-Oct-21 17:00 ATCO TE 2005S Secord PRC005 relays and line work 4.38 Days
Continuous		  
25-Oct-21 08:00 01-Nov-21 12:00 ATCO Outage 7L12 (834s Wesley Creek - 7LA12 tap) changing X Arms and installing stubs 7.17 Days
Continuous		  
25-Oct-21 08:00 28-Oct-21 18:00 ALTALINK TE 17s RTU/SCADA (17s Benalto) commission new Johnson node 2 into the network 3.42 Days
Continuous		  
25-Oct-21 08:00 28-Oct-21 18:00 ATCO IO Benalto Altalink work - working on the DWDM network 3.42 Days
Continuous		  
25-Oct-21 08:00 28-Oct-21 16:00 ENMAX Outage 11.2TR (ENMAX 11) cable trench replacement 3.33 Days
Continuous		  
25-Oct-21 08:00 29-Oct-21 18:00 USPCE TE 841s Long Lake RTU/SCADA firmware upgrade 4.42 Days
Continuous		  
25-Oct-21 08:30 28-Oct-21 17:00 ENMAX IO Altalink outage. 5sT2 change conservator bladder 3.35 Days
Continuous		  
25-Oct-21 08:30 29-Oct-21 17:00 ATCO TE 856s Kinosis RTU/SCADA firmware upgrade 4.35 Days
Continuous		  
25-Oct-21 08:30 01-Nov-21 16:30 ATCO TE 802s Michichi Creek RTU/SCADA complete 500PT2 wiring 7.33 Days
Continuous		  
25-Oct-21 09:00 30-Oct-21 17:30 ALTALINK IO 7L77 (A709s - 395s) ATCO - Advice change arms insulators 5.35 Days
Continuous		  
25-Oct-21 09:00 29-Oct-21 17:30 ATCO Outage 2029s Heathfield 2029S 500SST1/T2 - breaker thermal window install 4.35 Days
Continuous		  
25-Oct-21 09:00 28-Oct-21 16:00 ATCO RB 7L10 (730s Rycroft - 754s Ksituan River) maintenance 3.29 Days
Continuous		  
25-Oct-21 09:45 03-Nov-21 17:45 ALTALINK Outage 1005L (120s Picture Butte - 356s Milo) install/commission new line protections 9.33 Days
Continuous		  
25-Oct-21 11:00 29-Oct-21 15:00 ALTALINK Outage 919L (77s Sagitawah - 310p Sundance) replacement of 77s919x 4.17 Days
Continuous		  
25-Oct-21 12:00 28-Oct-21 18:00 ALTALINK, EPCOR Outage 908L (89s Ellerslie - 816s Petrolia) component replacements and fire mitigation 3.25 Days
Continuous		  
25-Oct-21 12:00 28-Oct-21 18:00 ALTALINK, EPCOR RB 909L (89s Ellerslie - 665s Dome) component replacements and fire mitigation on 908L Str's range 200-232 3.25 Days
Continuous		  
25-Oct-21 12:00 28-Oct-21 18:00 EPCOR IO ALTALINK - 908L - DE-ENERGIZE LINE component replacements and fire mitigation on 908L Str's range 200-232 3.25 Days
Continuous		  
25-Oct-21 12:00 28-Oct-21 18:00 ALTALINK, EPCOR RB 909L (310p Sundance - 665s Dome) component replacements and fire mitigation on 908L Str's range 200-232 3.25 Days
Continuous		  
25-Oct-21 12:00 05-Nov-21 17:30 ALTALINK Outage 89s 1252 (89s Ellerslie) replace breaker fail relay 11.23 Days
Continuous		  
25-Oct-21 12:00 05-Nov-21 17:30 ALTALINK TE 89S Ellerslie breaker fail relay replacement 11.23 Days
Daily		  
25-Oct-21 12:00 05-Nov-21 17:30 ALTALINK TE 89S Ellerslie install of the new 96/1252 relay 11.23 Days
Daily		  
25-Oct-21 13:00 28-Oct-21 18:00 ALTALINK Outage 89s 1352 (89s Ellerslie), 89s 1452 (89s Ellerslie) replace 240 kV PTs 89s80 3.21 Days
Continuous		  
26-Oct-21 07:30 28-Oct-21 17:30 ALTALINK Outage 135s T2 (135s Conrad) cable installation from T2 secondary CT’s to the new control building and change to feeder protection settings for the 135s4670 breaker 2.42 Days
Daily		  
26-Oct-21 08:00 28-Oct-21 18:00 ALTALINK Outage 452L (367s Harry Smith - 434s Stony Plain), 434s T3 (434s East Stony Plain), 434s 452 (434s Stony Plain) replace 434s2, replace 434s1 existing grounding mat, T3 pipe bus dampening repairs 2.42 Days
Continuous		  
26-Oct-21 08:00 28-Oct-21 17:00 ALTALINK TE 89s RTU/SCADA (89s Ellerslie) update configuration for replacement 89s1252 breaker fail relay 2.38 Days
Daily		  
26-Oct-21 08:00 01-Nov-21 09:00 REDDEER Outage 194s T2 (194s South Red Deer) relay testing and maintenance 6.04 Days
Continuous		  
26-Oct-21 08:00 09-Nov-21 09:00 ATCO Outage 740s 144kV Main Bus (740s H.R.Milner), 740s 703T (740s H.R.Milner) 740S 700BS1 outage 14.08 Days
Continuous		  
26-Oct-21 08:00 26-Nov-21 16:00 ATCO TE 740S H.R.Milner 144 kV bus - replace CT secondary cables 31.38 Days
Continuous		  
27-Oct-21 07:00 30-Oct-21 18:00 ALTALINK Outage 853L (504s Queenstown - 853AL tap) bird flight diverter installation on 853L structures 282-330 3.46 Days
Continuous		  
27-Oct-21 08:00 11-Nov-21 18:00 SUNCOR Outage 29EDD-71 Edd71Sub breaker 10 year maintenance and test 15.46 Days
Continuous		  
27-Oct-21 08:30 28-Oct-21 16:30 ALTALINK Outage 727L (65s High River - 727AL tap), 65s 727N (65s High River) 65s High River grading cap (65s727N) 1.33 Days
Continuous		  
27-Oct-21 09:00 28-Oct-21 17:00 ATCO TE 888S RTU Upgrades & Changes configuration changes on RTU, station controller, SEL 2032
1.33 Days
Continuous		  
27-Oct-21 09:00 28-Oct-21 17:00 ATCO Outage 749s 701T (749s Flyingshot Lake) 701T leak investigate and repair 1.33 Days
Continuous		  
27-Oct-21 09:15 28-Oct-21 15:45 ALTALINK Outage 421s 795N (421s Hays), 795L (121s Brooks - 421s Hays) 1st trip and maintenance - PRC5 30.5 Hours
Continuous		  
28-Oct-21 08:00 29-Oct-21 17:00 ALTALINK TE 199S East Airdrie complete alarm splitting on T2 as part of ACC visibility upgrade program 1.38 Days
Continuous		  
28-Oct-21 08:00 28-Oct-21 16:00 ENMAX Outage 1.7TR (ENMAX 1) oil sampling, HV bushing, TC 8 Hours
Continuous		  
28-Oct-21 08:30 28-Oct-21 14:00 ALTALINK TE 221s RTU/SCADA (221s Sunken Lake) investigate ACC comms fail alarm coming from RTU and meter replacement 5.5 Hours
Daily		  
28-Oct-21 08:30 28-Oct-21 12:30 ALTALINK TE 12S Heartland minor setting change to enable local logging on the T1 B87/50/51/51N/T1 SEL387E 4 Hours
Daily		  
28-Oct-21 09:00 29-Oct-21 17:00 ATCO TE 951s RTU/SCADA (951s Thickwood Hills) configuration changes on SMP controller at 240 KV and SVS buildings 1.33 Days
Continuous		  
28-Oct-21 09:00 29-Oct-21 16:00 ALTALINK TE 510s RTU/SCADA (510s Sunnybrook) commissioning for geomagnetically induced current monitoring CTs and SCADA equipment 31 Hours
Daily		  
28-Oct-21 09:00 28-Oct-21 14:00 ATCO Outage 826s 503R (826s Marguerite Lake), 826s 504R (826s Marguerite Lake) emergency: repair hotspot found on 826S 504A during heat scanning 5 Hours
Continuous		  
28-Oct-21 09:30 01-Nov-21 17:30 ALTALINK Outage 68s T2 (68s Willesden Green), 68s 552 (68s Amoco Willesden Green) tie in new CT circuit for ne A87 protection, modify transformer protection relays setting and testing 4.33 Days
Continuous		  
28-Oct-21 10:00 01-Nov-21 17:00 ALTALINK TE 68s RTU/SCADA (68s Willesden Green) allow addition of new control/alarms 4.29 Days
Daily		  
28-Oct-21 10:00 28-Oct-21 17:00 ALTALINK TE 422s RTU/SCADA (422s Westwood) update RTU configuration 7 Hours
Daily		  
28-Oct-21 10:00 28-Oct-21 17:00 ALTALINK TE 118S Canmore standard relay maintenance 7 Hours
Daily		  
29-Oct-21 08:00 31-Oct-21 12:00 ENMAX Outage 6.80L (ENMAX 6 - ENMAX 35), 6B138-6.80 (ENMAX 6) 6 sub cable trench replacement 2.17 Days
Continuous		  
29-Oct-21 08:00 29-Oct-21 16:00 ENMAX TE 5.8TR (ENMAX 5) 5PT138-Z32 secondary circuit relay replacement and wiring new circuits 8 Hours
Continuous		  
29-Oct-21 08:00 30-Oct-21 17:00 ATCO IO 2075S Newell Notification of AltaLink work at 356s relay (Little Bow),13L50 - modify wiring and commissioning of new circuit 1.38 Days
Continuous		  
29-Oct-21 13:00 29-Oct-21 15:00 SUNCOR TE SUNCOR ICCP Outage SCADA failover test 2 Hours
Continuous		  
29-Oct-21 14:00 11-Nov-21 15:30 ATCO Outage 757s 704 (757s Battle River) 704T maintenance work and PRC005 work on 704 breaker 13.1 Days
Continuous		  
30-Oct-21 07:00 31-Oct-21 19:30 ALTALINK TE 281s - Relay Temporary setting change required for 275981 17s 138kV Bus outage 848L and Bus 4 at 17s. 1.52 Days
Daily		  
30-Oct-21 07:00 31-Oct-21 19:30 ALTALINK TE 256S Harmattan temporary setting change required for 275981 17s 138kV Bus outage 848L and Bus 4 at 17s 1.52 Days
Daily		  
30-Oct-21 07:00 31-Oct-21 19:30 ALTALINK TE 575S Sundre temporary setting change required for 275981 17s 138kV Bus outage 848L and Bus 4 at 17s 1.52 Days
Daily		  
30-Oct-21 08:00 30-Oct-21 18:00 ENMAX Outage 11.82L (ENMAX 11 - ENMAX 14), 11.83L (ENMAX 162 - ENMAX 11), 11.3TR (ENMAX 11), 11.2TR (ENMAX 11) fall substation washing. check reversing switch 11.2TR 10 Hours
Continuous		  
30-Oct-21 08:00 30-Oct-21 18:00 ALTALINK IO 11.82L, 11.83L OOS - Enmax Info fall substation washing. check reversing switch 11.2TR 10 Hours
Daily		  
30-Oct-21 10:00 15-Nov-21 16:00 ENMAX Outage 14.1C (ENMAX 14), 14.2C (ENMAX 14) 14 sub fencing replacement 16.29 Days
Continuous		  
31-Oct-21 07:15 31-Oct-21 16:45 ALTALINK IO 937L (102s-5s) Urgent Enmax Advice urgent outage to repair possible broken strands in splice 9.5 Hours
Daily		  
31-Oct-21 08:00 04-Nov-21 16:00 ENMAX TE 6.80L (ENMAX 6 - ENMAX 35) 6PT138-Z31 secondary circuit, 6 sub cable trench replacement 4.33 Days
Continuous		  
31-Oct-21 08:00 02-Nov-21 16:00 ENMAX Outage 1.85L (ENMAX 1 - ENMAX 8) 8sub RTU commissioning 2.33 Days
Continuous		  
31-Oct-21 08:00 31-Oct-21 16:00 ENMAX, ALTALINK Outage 937L (5s East Calgary - 102s Langdon) investigate high corona, possible internal broken strands on the conductor 8 Hours
Continuous		  
31-Oct-21 12:00 04-Nov-21 16:00 ENMAX Outage 6.82L (ENMAX 6 - ENMAX 41) 6 sub cable trench replacement 4.17 Days
Continuous		  
31-Oct-21 23:00 01-Nov-21 01:00 ENMAX Outage 5B138-5BT7 (ENMAX 5) relay replacement. 5.8TR, commissioning checks 2 Hours
Continuous		  
01-Nov-21 07:00 02-Nov-21 17:00 EPCOR Outage 1164L (816s Petrolia - EPCOR Riverview), RW2401 (EPCOR Riverview), RW2402 (EPCOR Riverview) RWDS2 / RWDS3 / RWDS11 adjustments 1.42 Days
Continuous		  
01-Nov-21 07:00 02-Nov-21 17:00 ENMAX RB 1.80L (ENMAX 1 - ENMAX 28) tree trimming 1.42 Days
Daily		  
01-Nov-21 07:00 04-Nov-21 17:00 ALTALINK TE 285S East Camrose T2 A protection outage to upgrade RS485 circuit to 4 wire RS485 3.42 Days
Daily		  
01-Nov-21 07:00 04-Nov-21 17:00 ALTALINK Trans Test 285s T2 (285s East Camrose) troubleshoot T2 Tap changer control for Raise/Lower and Auto/Manual indication and control: functionally operate taps (+/-1) to prove control and indication 3.42 Days
Daily		  
01-Nov-21 07:00 02-Nov-21 17:00 ALTALINK IO Riverview & 1164L Epcor - Info Epcor 240kV Bus 1/2 and 1164L @ Riverview and Petrolia E816S, RWDS2 / RWDS3 / RWDS11 adjustments 1.42 Days
Daily		  
01-Nov-21 07:00 20-Nov-21 17:00 ALTALINK TE 17S Benalto required for 17s P&C upgrade project 19.46 Days
Daily		  
01-Nov-21 07:00 20-Nov-21 17:00 ALTALINK TE 17s RTU/SCADA (17s Benalto) RTU updates required for 17s P&C upgrade project 19.46 Days
Daily		  
01-Nov-21 07:00 23-Nov-21 17:30 ALTALINK TE 39s RTU/SCADA (39s Bickerdike) SCADA update for 39s 240KV Expansion Project for new 39s 1152, 1552, 1652, 1752 associated protections 22.48 Days
Daily		  
01-Nov-21 07:00 25-Nov-21 21:00 EPCOR Outage VHBB2 (Rossdale) breaker outage 24.63 Days
Continuous		  
01-Nov-21 07:30 02-Nov-21 17:30 ALTALINK TE 138s Windy Flats RTU/SCADA update RTU configuration to add new battery monitoring alarm 1.42 Days
Continuous		  
01-Nov-21 07:30 12-Nov-21 17:30 ALTALINK RB 113L (20s Ghost - 33s Spray) scope of work includes vegetation clearing between structures 1 and 91 11.46 Days
Daily		  
01-Nov-21 07:30 09-Nov-21 17:30 ALTALINK TE 151s RTU/SCADA (151s Strathmore) SCADA RTU/HMI update 8.46 Days
Continuous		  
01-Nov-21 07:30 15-Nov-21 17:30 ALTALINK RB 604L (149s Nisku - 155s Blackmud) crews building new line beside 604L between structures 22 - 36 14.46 Days
Daily		  
01-Nov-21 07:30 04-Nov-21 17:30 ALTALINK RB 897L (38s East Edmonton - 45s Bretona) RB for component replacements and fire mitigation on 908L Str's range 233-298 3.42 Days
Daily		  
01-Nov-21 07:30 04-Nov-21 17:30 ALTALINK RB 780L (38s East Edmonton - 522s Cooking Lake) RB for component replacements and fire mitigation on 908L Str's range 233-298 3.42 Days
Daily		  
01-Nov-21 08:00 05-Nov-21 17:30 ALTALINK TE 42s RTU/SCADA (42s Sarcee) Supervisory outage to update RTU configuration 4.4 Days
Daily		  
01-Nov-21 08:00 09-Nov-21 17:00 ALTALINK TE 121s RTU/SCADA (121s Brooks) add and commission new RTU/HMI alarms for P&C relay moves 8.42 Days
Continuous		  
01-Nov-21 08:00 07-Nov-21 16:00 ENMAX Outage 38.83L (ENMAX 38 - ENMAX 39) breaker refurbishments 6.38 Days
Continuous		  
01-Nov-21 08:00 07-Nov-21 16:00 ALTALINK IO 38.83L (C38s-C39s) OOS - Enmax Info HPL breaker refurbishments on 39B138-38.83 6.38 Days
Continuous		  
01-Nov-21 08:00 13-Nov-21 18:00 SUNCOR Outage 29EDD-1 260kV North Bus 1 (29EDD-1 Millennium), 29EDD-1 29EDD1s152 (29EDD-1 Millennium), 29EDD-1 29EDD1s452 (29EDD-1 Millennium) preventative maintenance 12.46 Days
Continuous		  
01-Nov-21 08:00 08-Nov-21 12:00 ATCO RB 7L60 (780s Lubicon - 827s Cranberry Lake), 7L94 (827s Cranberry Lake - 878s Kidney Lake) climbing inspection on 7L94 7.21 Days
Continuous		  
01-Nov-21 08:00 01-Nov-21 18:00 ALTALINK TE AltaLink Radio Tower, 438s RTU/SCADA (438s Westlock) upgrade 9374R MPLS node and upgrade radio 10 Hours
Daily		  
01-Nov-21 08:30 05-Nov-21 17:00 ATCO TE 856S Kinosis, 856s Kinosis RTU/SCADA replace 2032-3 with RTAC and test all soft alarms back to RTU 4.35 Days
Continuous		  
01-Nov-21 09:00 05-Nov-21 17:30 ATCO Outage 2075S 500SST1, 2075S 500SST2 Breaker thermal window installs in LV1 & LV2.
As Each Station service is removed-from and returned-to service the 240Kv breakers will be opened temporarily to allow for isolating the low voltage devices. (2075S 920 & 2075S 921 for 500SST1) & (2075S 904 & 2075S 905 for 500SST2)
One LV will be performed at a time, then the other switched out.		 4.35 Days
Continuous		  
01-Nov-21 09:00 08-Nov-21 18:00 ALTALINK Outage 763L (158s Vauxhall - 257s Hull) components 763L Str's Range (423-515) 7.42 Days
Continuous		  
01-Nov-21 09:00 05-Nov-21 15:30 ATCO Outage 757s 702 (757s Battle River), 757s 702B (757s Battle River) PRC005 work on 702 Breaker 4.27 Days
Continuous		  
01-Nov-21 09:00 12-Nov-21 16:00 ATCO Outage 834s 501 (834s Wesley Creek), 834s 502 (834s Wesley Creek), 834s 503 (834s Wesley Creek), 834s 502R (834s Wesley Creek) Install oil containment around 902T 11.33 Days
Continuous		  
01-Nov-21 09:30 20-Nov-21 18:00 ALTALINK Outage 17s 138kV Bus 4 & T2 TX18477 - Advice, 17s 138kV Bus 4 (17s Benalto), 17s T2 (17s Benalto) Replace 138kv Bus 4 bus prots, Replace breaker fails on s92, s85, s848X Replace s85 sync check, Replace line protections on 848L, Tie in new 138B3 'B' CT cont, and Tie in new 138B3 'B' CT cont 19.4 Days
Continuous		  
01-Nov-21 10:00 04-Nov-21 17:00 ALTALINK RB 718L (250p Bighorn Plant - 263s Strachan) component replacements 718L (Str's range 70-271) 3.29 Days
Daily		  
01-Nov-21 10:00 05-Nov-21 17:00 ALTALINK TE 285s RTU/SCADA (285s East Camrose) network switch upgrades 4.29 Days
Daily		  
01-Nov-21 10:00 08-Nov-21 09:00 REDDEER Outage 194s T1 (194s South Red Deer) relay testing and maintenance 7 Days
Continuous		  
01-Nov-21 11:00 10-Nov-21 17:30 ALTALINK, EPCOR RB 920L (37s North Calder - 557s Castle Downs) replace 37s77 & 37s79 switches, maintenance on 37s76 including first trip testing, replace grading caps on 37s76 9.31 Days
Continuous		  
01-Nov-21 11:00 10-Nov-21 17:30 ALTALINK, EPCOR RB 930L (37s North Calder - Poundmaker) replace 37s77 & 37s79 switches, maintenance on 37s76 including first trip testing, replace grading caps on 37s76 9.31 Days
Continuous		  
01-Nov-21 11:00 10-Nov-21 17:30 ALTALINK Outage 905L (19s Wabamun - 37s North Calder), 37s 76 (37s North Calder), 37s 82 (37s North Calder) replace 37s77 & 37s79 switches, salvage 37s74 and maintenance on 37s76 including first trip testing 9.31 Days
Continuous		  
01-Nov-21 11:00 04-Nov-21 18:00 ALTALINK Outage 89s T2 (89s Ellerslie), 89s Ellerslie 240kV Bus 2, 89s 1652 (89s Ellerslie), 89s 852 (89s Ellerslie), 89s 452 (89s Ellerslie) Replace 240kV PTs 89s91. Maintenance on 89s8, 89s16, 89s32. Trip testing from replacement 89s1252 breaker fail relay 3.29 Days
Continuous		  
01-Nov-21 11:00 04-Nov-21 18:00 ALTALINK, EPCOR RB 947L (89s Ellerslie - 987s Clover Bar) to replace 240kV PTs 89s91, maintenance on 89s8, 89s16, 89s32 3.29 Days
Continuous		  
01-Nov-21 11:00 05-Nov-21 17:30 ATCO TE 789S 7L59 Protection Relay Settings change for work at 786S High Level (GOI 2-59684) 4.27 Days
Continuous		  
01-Nov-21 11:01 05-Nov-21 17:30 ATCO Outage 786s 701T (786s High Level), 786s 701TCS (786s High Level) CCT SW S&C complete test and maintenance, Transformer Major Testing 4.27 Days
Continuous		  
01-Nov-21 11:30 03-Nov-21 17:30 ALTALINK Outage 447s T1 (447s Enchant) bushing replacement 2.25 Days
Continuous		  
01-Nov-21 12:00 04-Nov-21 18:00 ALTALINK, EPCOR Outage 908L (38s East Edmonton - 89s Ellerslie), 52s T2 (52s East Industrial) component replacements and fire mitigation on Str's range 233-298 3.25 Days
Continuous		  
01-Nov-21 12:00 04-Nov-21 18:00 ALTALINK, EPCOR RB 1059L (38s East Edmonton - EP 803s Lambton), 1059AL (52s East Industrial - 1059L tap) RB for component replacements and fire mitigation on 908L Str's range 233-298 3.25 Days
Continuous		  
01-Nov-21 12:00 04-Nov-21 18:00 EPCOR RB 1058L (657s Summerside - EP 803s Lambton) RB for component replacements and fire mitigation on 908L Str's range 233-298 3.25 Days
Continuous		  
01-Nov-21 12:00 04-Nov-21 18:00 EPCOR, ALTALINK IO ALTALINK - 908L(89s-E52s-38s) - DE-ENERGIZE LINE, 908L (38s East Edmonton - 89s Ellerslie), 908AL (52S East Industrial - 908L tap) Component replacements and fire mitigation on Str's Range 233-298 3.25 Days
Continuous		  
01-Nov-21 12:00 04-Nov-21 18:00 ALTALINK, EPCOR RB 1059L (EP 803s Lambton - 1059AL tap) RB for component replacements and fire mitigation on 908L Str's range 233-298 3.25 Days
Continuous		  
01-Nov-21 12:00 04-Nov-21 18:00 EPCOR IO ALTALINK - 1058L - RB @E803s Lambton & E657s Summerside RB for component replacements and fire mitigation on 908L Str's Range 233-298 3.25 Days
Continuous		  
01-Nov-21 12:00 02-Nov-21 16:00 ALTALINK Outage 434s T1 (434s East Stony Plain) Install bird cover ups on T1 25 kV bushings and 36L feeder conductor terminations 28 Hours
Continuous		  
01-Nov-21 12:00 04-Nov-21 17:30 ALTALINK Outage 316s T1 (316s West Crossfield) doble and maintenance 3.23 Days
Continuous		  
01-Nov-21 12:00 01-Nov-21 18:00 ALTALINK TE WAP1s MPLS - TPR/RTU Upgrade MPLS node. Loss of visibility of WAP1s 2 hours in the timeframe indicated. Also affects 723L/724L TPR which causes slow fault clearing and removes the anti islanding scheme from service. WAP1s must be offline for this work, coordinated with their planned shutdown. 6 Hours
Daily		  
01-Nov-21 12:30 05-Nov-21 17:30 ALTALINK Outage 245s T2 (245s Seebe) TX protection replacements 4.21 Days
Continuous		  
01-Nov-21 13:00 04-Nov-21 17:00 ALTALINK TE 245s RTU/SCADA (245s Seebe) update RTU database 3.17 Days
Daily		  
01-Nov-21 13:30 01-Nov-21 14:30 ALTALINK TE 245S Seebe 138kV bus protection relays to isolate the CT contributions safely from the T2 high side CTs 60 Mins
Daily		  
01-Nov-21 14:30 03-Nov-21 17:00 ALTALINK TE 163S Amoco Empress troubleshoot/repair VT fuse fail issue 2.1 Days
Daily		  
01-Nov-21 14:30 03-Nov-21 17:00 ALTALINK TE 394S Empress troubleshoot/repair VT fuse fail issue 2.1 Days
Daily		  
02-Nov-21 06:00 02-Nov-21 18:00 ALTALINK TE 5S East Calgary relay replacement, wring changes, relay settings testing, commissioning checks 12 Hours
Continuous		  
02-Nov-21 06:45 02-Nov-21 17:15 ALTALINK IO 23.80L (74s-C23s) RB - Enmax tree trimming 10.5 Hours
Daily		  
02-Nov-21 07:00 02-Nov-21 17:00 ENMAX, ALTALINK RB 23.80L (74s Janet - ENMAX 23) tree trimming 10 Hours
Daily		  
02-Nov-21 07:00 18-Nov-21 17:00 ALTALINK, EPCOR RB 1045L (310p Sundance - 320p Keephills - 805s Jasper) Epcor work in proximity to 1045L 16.46 Days
Daily		  
02-Nov-21 08:00 04-Nov-21 17:00 ATCO, SUNCOR TE 635PL9-1000 (2005s Secord - 635EDD-1000), 635PL9-1001 (2005s Secord - 635EDD-1000), 2005S Secord raise line. move both A&B protections to the same fiber one at a time, complete PRC005 relays and line end to ends 2.38 Days
Continuous		  
02-Nov-21 08:00 11-Nov-21 17:00 ATCO IO 9L1035 AltaLink has scheduled 1035L(244s – A2075s) outage 9.42 Days
Continuous		  
02-Nov-21 08:00 11-Nov-21 17:00 ALTALINK RB 1034L (244s Bowmanton - 324s Cassils) required for completion of damper replacement CRU scope between structures 300 & 367 9.42 Days
Daily		  
02-Nov-21 08:00 11-Nov-21 17:00 ATCO, ALTALINK Outage 1035L (244s Bowmanton - 2075s Newell) urgent damper replacement 9.42 Days
Continuous		  
02-Nov-21 08:00 16-Nov-21 17:00 SUNCOR Outage 635EDD-1000 PT-1001 (635EDD-1000), 635PL9-1001 (2005s Secord - 635EDD-1000) line structure change for line lift; line & transformer maintenance and protection work 14.42 Days
Continuous		  
02-Nov-21 08:00 04-Nov-21 17:00 ALTALINK, TRANSALTAEM RB 723L (150s Clyde - 438s Westlock), 723L (69s North Barrhead - 724L tap), 724L (500s Flatbush - 723L tap), 724L (723L tap - 724AL tap), 724AL (WAP-7L1 - 724AL tap), 723L (438s Westlock - 724L tap) urgent repair arms and insulator replacements 724L (Str's range 103-106) , live line work 2.38 Days
Continuous		  
02-Nov-21 08:00 03-Nov-21 16:00 ENMAX Outage 13.1TR (ENMAX 13) tripping hazard, oil sampling 1.33 Days
Continuous		  
02-Nov-21 08:00 02-Nov-21 16:00 ENMAX Outage 37.2TR (ENMAX 37) oil sampling, replace LTC mech heaters 8 Hours
Continuous		  
02-Nov-21 08:00 16-Nov-21 17:00 ATCO IO 635PL9-1001 Suncor Fort Hills raising 260kV lines to accommodate new mine site overpass installation, maintenance and PRC-5 activities and protection end to end testing 14.42 Days
Continuous		  
02-Nov-21 08:00 31-Dec-21 16:19 ATCO TE 802s Michichi Creek RTU/SCADA program changes to the RTU 59.39 Days
Continuous		  
02-Nov-21 08:00 09-Nov-21 18:00 SUNCOR TE Suncor T&D SCADA hardware and software major upgrade Suncor AESO ICCP intermittent, Suncor AESO DNP intermittent, SCADA visibility loss intermittent ( 20 -60 minutes every day) during cutover or failover. 7.46 Days
Continuous		  
02-Nov-21 09:00 04-Nov-21 15:00 ALTALINK TE 385s RTU/SCADA (385s Spring Coulee) RTU database update 2.25 Days
Daily		  
02-Nov-21 09:00 02-Nov-21 14:30 ALTALINK Outage 142s 3 (142s Magcan), 142s C1 (142s Magcan) replace dashpot, oil top up 5.5 Hours
Daily		  
02-Nov-21 09:00 02-Nov-21 16:30 ATCO Outage 749S 702 749S 702 testing 7.5 Hours
Continuous		  
02-Nov-21 09:00 03-Nov-21 16:30 ALTALINK TE 149S Nisku relay settings change 31.5 Hours
Daily		  
02-Nov-21 09:00 03-Nov-21 17:00 ALTALINK TE 510s RTU/SCADA (510s Sunnybrook) update firmware 1.33 Days
Daily		  
02-Nov-21 10:30 09-Nov-21 17:00 ALTALINK TE 370S North Lethbridge relay setting changes and functional testing to trip the new 1552 breaker, one at a time with redundant protection 7.31 Days
Continuous		  
02-Nov-21 11:00 02-Nov-21 17:00 ATCO Outage 7L23, 7L23 (732s Mitsue - 796s Nipisi) High Load move 6 Hours
Continuous		  
02-Nov-21 12:00 04-Nov-21 17:00 ALTALINK TE 254s RTU/SCADA (254s Coaldale) install new config he RTU will require a reboot once the new config is in 2.21 Days
Continuous		  
02-Nov-21 12:00 04-Nov-21 17:00 ALTALINK TE 254s T2 (254s Coaldale) protection outages required to complete alarm splitting on T2 as part of ACC visibility upgrade program 2.21 Days
Continuous		  
02-Nov-21 14:00 02-Nov-21 16:00 ALTALINK TE 385S Spring Coulee setting modifications, redundant protections in place at all times 2 Hours
Daily		  
03-Nov-21 06:30 03-Nov-21 17:30 ALTALINK IO 1139L (367s-Riverview) Epcor - Advice Epcor RWDS12 adjustment 11 Hours
Daily		  
03-Nov-21 07:00 03-Nov-21 17:00 ALTALINK IO 370S North Lethbridge isolate breaker 370s10 (25 kV) to complete P&C cutovers, remove and add trips, modify block close 10 Hours
Daily		  
03-Nov-21 07:00 03-Nov-21 17:00 EPCOR Outage 1139L (367s Harry Smith - EPCOR Riverview), RW2403 (EPCOR Riverview), RW2405 (EPCOR Riverview) RWDS12 adjustment 10 Hours
Continuous		  
03-Nov-21 07:00 03-Nov-21 17:00 ENMAX RB 3.84L (ENMAX 3 - ENMAX 13) tree trimming 10 Hours
Daily		  
03-Nov-21 07:00 03-Nov-21 17:00 ENMAX RB 24.82L (ENMAX 24 - ENMAX 65) tree trimming 10 Hours
Daily		  
03-Nov-21 07:30 05-Nov-21 17:30 ALTALINK RB 907L (77s Sagitawah - 122s Alberta Newsprint) maintenance on structures 14, 83, 84, 96, 100, 101, 102, 106, 108, 110, 111, 112 and 122 2.42 Days
Daily		  
03-Nov-21 07:30 04-Nov-21 17:30 ALTALINK TE 336s RTU/SCADA (336s Fincastle) update RTU configuration to add new battery monitoring alarm 1.42 Days
Continuous		  
03-Nov-21 07:30 04-Nov-21 17:30 ALTALINK RB 428L (167s Ipiatik Lake - 818s Winefred) required for installation of catch arm assembly on double circuit structure 428L5/457L7 1.42 Days
Continuous		  
03-Nov-21 07:30 04-Nov-21 17:30 ALTALINK RB 457L (167s Ipiatik Lake - 651s Kirby) required for installation of catch arm assembly on double circuit structure 428L5/457L7 1.42 Days
Continuous		  
03-Nov-21 07:30 03-Nov-21 17:30 ATCO RB 9L939 (77s Sagitawah - 809s Louise Creek) to facilitate 907L maintenance on structures 14, 83, 84, 96, 100, 101, 102, 106, 108, 110, 111, 112 and 122 10 Hours
Daily		  
03-Nov-21 07:30 03-Nov-21 17:30 ATCO IO 9L939 Altalink requesting a reclose block on 9L939 from 809s 10 Hours
Continuous		  
03-Nov-21 07:45 03-Nov-21 12:15 ALTALINK IO 9L933/933L (A801s-132s) Atco - R/B HOP on 9L933 to install armor rod and weights @ structure 164 4.5 Hours
Daily		  
03-Nov-21 08:00 03-Nov-21 18:00 Syncrude TE Syncrude ICCP Outage SCADA - server update
10 Hours
Daily		  
03-Nov-21 08:00 03-Nov-21 20:00 ATCO TE ATCO Radio Tower, ATCO TPR Outage Wesley Creek_S-Telecom, Weberville_T-Telecom - carrier cutover from the Constellation to IRU 600 radio - antenna replacement 12 Hours
Continuous		  
03-Nov-21 08:00 03-Nov-21 16:00 ENMAX Outage 1.84L (ENMAX 1 - ENMAX 5) 5sub TRV Project - investigate control wiring in circuit breaker 8 Hours
Continuous		  
03-Nov-21 08:00 08-Nov-21 16:00 ALTALINK TE 419s RTU/SCADA (419s Chestermere) 419s loading RAS to be migrated to new realys, alarms will be moved incrementally aligning with protection outages 5.38 Days
Continuous		  
03-Nov-21 08:00 03-Nov-21 12:00 ATCO RB 9L933 (132s Ware Junction - 801s Anderson) we require HOP on 9L933 to install armor rod and weights @ structure 164 4 Hours
Continuous		  
03-Nov-21 08:00 03-Nov-21 17:00 ALTALINK TE 63s RTU/SCADA (63s Red Deer) update RTU database 9 Hours
Daily		  
03-Nov-21 08:00 28-Nov-21 17:00 ATCO Outage 9L40 (732s Mitsue - 809s Louise Creek) wiring for 903/904BF relays 25.42 Days
Continuous		  
03-Nov-21 08:00 05-Nov-21 16:00 ENMAX Outage 8.5TR (ENMAX 8) 8sub RTU commissioning 2.33 Days
Continuous		  
03-Nov-21 08:30 03-Nov-21 17:30 ALTALINK Outage 385s T1 (385s Spring Coulee), 385s T2 (385s Spring Coulee) wire CT secondary contributions to new 69 kV U/V protections 9 Hours
Daily		  
03-Nov-21 09:00 04-Nov-21 16:00 ALTALINK TE 419s Chestermere install and commission relays for 419s Overload RAS on 691L remove RAS from existing ‘A’ line protection relay 31 Hours
Continuous		  
03-Nov-21 09:00 05-Nov-21 16:00 ALTALINK IO 419s RAS 'A' Relay Chestermere 419s overload RAS 'A' to be OOS during cutover to new relays 2.29 Days
Continuous		  
03-Nov-21 23:00 04-Nov-21 03:00 ALTALINK Outage 62s 11 (62s Brazeau) maintenance 4 Hours
Continuous		  
04-Nov-21 03:00 04-Nov-21 07:00 ALTALINK Outage 62s12 Advice for TransAlta brushgear 4 Hours
Continuous		  
04-Nov-21 07:00 04-Nov-21 17:00 ENMAX RB 2.81L (ENMAX 2 - ENMAX 9) tree trimming 10 Hours
Daily		  
04-Nov-21 07:00 05-Nov-21 17:00 ENMAX RB 11.82L (ENMAX 11 - ENMAX 14) tree trimming 1.42 Days
Daily		  
04-Nov-21 07:00 04-Nov-21 19:30 ALTALINK Outage 993s489 Enbridge - Advice Enbridge to service switches 410-BUS-2-IS and 70-SWGR-1-IS. Enbridge to hang grounds at 410-BUS-2-IS and 70-SWGR-1- IS. Enbridge request to hang their own tag as well. 12.5 Hours
Daily		  
04-Nov-21 07:00 05-Nov-21 23:00 ALTALINK Outage 216s 317s, 705L & 865L GOI, 705L (184s Petro-Canada Edmonton - 216s Knightsbridge), 865L (38s East Edmonton - 216s Knightsbridge) Insulator replacement, switch maintenance, SCADA upgrade. 1.67 Days
Continuous		  
04-Nov-21 08:00 04-Nov-21 20:00 ATCO TE ATCO TPR Outage Wesley Creek_S-Telecom, Simon Lake_T-Telecom -carrier cutover from the constellation to IRU 600 radio 12 Hours
Continuous		  
04-Nov-21 08:00 04-Nov-21 13:00 ALTALINK Outage 89s1952 - GOI, 89s 1952 (89s Ellerslie) Trip testing from replacement 89s1252 breaker fail relay. 5 Hours
Daily		  
04-Nov-21 08:00 04-Nov-21 17:00 ATCO RB 7L171 (802s Michichi Creek - 804s Wintering Hills) 802S Michichi substation TCM upgrades tap up mobile sub 9 Hours
Continuous		  
04-Nov-21 08:00 04-Nov-21 16:00 ENMAX Outage 162.3TR Replace Counter on 162.3TR Tap Changer. Oil Sampling MT, TC. Filmax LTC Oil Filtration Maintenance. LV load to transfer Nov 4th approx. 1:30 am, return Nov 5th 1:30am 8 Hours
Continuous		  
04-Nov-21 09:00 04-Nov-21 16:00 ALTALINK TE 151S Strathmore relay maintenance 7 Hours
Daily		  
04-Nov-21 09:00 05-Nov-21 17:00 ALTALINK TE 216s RTU/SCADA (216s Knightsbridge), 317s RTU/SCADA (317s Baseline) SCADA upgrade 1.33 Days
Daily		  
04-Nov-21 10:30 04-Nov-21 13:30 ALTALINK Outage 151s T1(Tx 18431) GOI Complete connections for the transformer protection to trip to 252 breaker and function test. 3 Hours
Daily		  
04-Nov-21 11:00 04-Nov-21 14:29 ALTALINK Outage 245s10 Advice, 245s 10 (245s Seebe) Functional Trip Test (245s3E); re T2 protection replacements 3.48 Hours
Daily		  
04-Nov-21 13:00 04-Nov-21 17:30 ALTALINK Outage 89s2252 - GOI, 89s 2252 (89s Ellerslie) Trip testing from replacement 89s1252 breaker fail relay. 4.5 Hours
Daily		  
04-Nov-21 14:30 04-Nov-21 17:00 ALTALINK Outage 777L (48s Pocaterra - 245s Seebe), 245s 777X (245s Seebe) functional trip test (245s3E); re T2 protection replacements 2.5 Hours
Daily		 AB-BC
04-Nov-21 14:30 04-Nov-21 17:00 ALTALINK TE 48s - 245s PLC - TPR/RTU reboot PLC 2.5 Hours
Daily		  
05-Nov-21 07:00 22-Nov-21 17:00 EPCOR Outage Summerside S/S Tx2 Outage, 657s T2 (657s Summerside) Tx2 isolation required for SUBT23 cell install as part of Southeast Expansion Project 17.46 Days
Continuous		  
05-Nov-21 08:00 06-Nov-21 16:00 ENMAX Outage 6.80L, 6.80L (ENMAX 6 - ENMAX 35) 6 sub cable trench replacement 1.33 Days
Continuous		  
05-Nov-21 08:00 05-Nov-21 10:29 ALTALINK Outage 245s3E (3L) Advice, 3L (245s Seebe - 3AL Tap) Functional Trip Test (245s3E); re T2 protection replacements 2.48 Hours
Daily		  
05-Nov-21 08:00 05-Nov-21 10:00 ALTALINK TE 765L (151s Strathmore - 419s Chestermere) install and commission relays for 419s overload RAS, A/21 RAS (765L) out-of-service during cutover 2 Hours
Daily		  
05-Nov-21 08:00 05-Nov-21 16:00 ENMAX Outage 162.4TR. 162.4TR Corrective -162MD138-162.4TR north phase not fully closed. LV load transfer Nov. 5th approximately 1:30am return to normal Nov 6th approx. 1:30am. 8 Hours
Continuous		  
05-Nov-21 08:00 05-Nov-21 16:00 ENMAX Outage 3.4TR LTC cabinet - heater fails 8 Hours
Continuous		  
05-Nov-21 10:30 05-Nov-21 13:00 ALTALINK Outage 245s58X (58L) Advice, 58L (32s Barrier - 245s Seebe) Functional Trip Test (245s3E); re T2 protection replacements 2.5 Hours
Daily		  
05-Nov-21 12:00 05-Nov-21 17:00 ALTALINK Outage 89s1152 (946L) - GOI, 89s 1152 (89s Ellerslie) Trip testing from replacement 89s1252 breaker fail relay. Outage coincides with 277255 89s1252 - GOI and will take 946L OOS. 5 Hours
Daily		  
05-Nov-21 12:30 05-Nov-21 15:30 ALTALINK TE 245S Seebe load readings to be taken on T2 with new protections 3 Hours
Daily		  
05-Nov-21 13:30 05-Nov-21 14:30 ALTALINK TE 245S Seebe 138kV bus protection relays to isolate the CT contributions safely from the T2 high side CTs 60 Mins
Daily		  

Prepared On:   2021-10-27   14:54:28

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.

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