Alberta Electric System Operator
System Co-ordination Plan
2021-04-16 to 2021-04-23
Approved Outages

Previous Version
Download CSV

From To Owner Type Element Scheduled Activity Date/Time Comments Interconnection
05-Oct-18 08:00 31-Dec-21 16:00 EPCOR IO Rossdale C2 (Rossdale) forced outage 1,183.38 Days
Continuous
 
24-Oct-18 01:13 31-Dec-21 16:00 EPCOR IO Rossdale C1 (Rossdale) forced outage 1,164.66 Days
Continuous
 
19-Sep-19 08:00 31-May-21 16:00 ATCO Outage 826s 504R (826s Marguerite Lake) emergency: move reactor from 826s to 732s 620.33 Days
Continuous
 
24-Jan-20 08:00 03-May-21 16:00 ATCO Outage 2029s ACF13 (2029s Heathfield) forced outage repairs 465.29 Days
Continuous
 
31-Aug-20 08:30 31-Aug-21 18:00 ALTALINK Outage 74s C1 (74s Janet), 74s C2 (74s Janet) replace 138kV C1 cap bank 365.4 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
 
11-Jan-21 07:00 30-Apr-21 17:00 EPCOR TE Rossdale 72 kV relay blocking 109.38 Days
Daily
 
20-Jan-21 16:43 20-May-21 18:00 ATCO TE 790s 704 (790s Poplar Hill) forced outage: breaker fail protection 120.01 Days
Continuous
 
24-Jan-21 08:00 07-Jan-23 18:00 SUNCOR Outage Unmodeled Transmission Facility (Suncor) 29EDD-161
713.42 Days
Continuous
 
01-Feb-21 07:00 30-Apr-21 17:00 EPCOR TE 816S Petrolia daily 240 kV relay blocking of one half of line, transformer, bus and breaker protection at Petrolia S/S 88.38 Days
Daily
 
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 22-Apr-21 18:00 ATCO Outage 757s 703 (757s Battle River) removing CT to replace damaged one on breaker 704 78.17 Days
Continuous
 
20-Feb-21 08:00 20-May-21 17:00 ATCO TE 790S Poplar Hill 144 kV breaker testing - block breaker fail and bus differential protections 89.33 Days
Continuous
 
22-Feb-21 07:00 06-Aug-21 17:00 EPCOR TE Garneau Garneau S/S breaker fail protection 165.38 Days
Continuous
 
22-Feb-21 07:30 01-May-21 16:30 ALTALINK IO 993s T2 (993s Abee) installing bird mitigation 68.33 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
 
24-Feb-21 17:01 12-Jul-21 17:00 EPCOR Outage T2 (Hardisty) transformer replacement 137.96 Days
Continuous
 
27-Feb-21 08:00 16-Apr-21 17:00 ALTALINK TE 899s Edgerton RTU/SCADA SCADA additions/changes/corrections related to protection modifications/upgrade 48.33 Days
Daily
 
01-Mar-21 07:00 30-Apr-21 17:00 EPCOR TE Hardisty EPCOR, Hardisty RTU/SCADA SA system upgrade and test for future upgrade to ADMS system 60.38 Days
Daily
 
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
 
08-Mar-21 07:00 30-May-21 17:00 EPCOR TE 511S Victoria 72 kV relay blocking 83.38 Days
Daily
 
12-Mar-21 15:00 07-May-21 17:00 ALTALINK Outage 320p 6A (320p Keephills), 320p 7A (320p Keephills) replacement of 320p852 and work on 320p589 56.04 Days
Continuous
 
15-Mar-21 07:00 14-May-21 17:00 EPCOR TE 557S Castle Downs station SA system being upgraded and tested to accommodate future upgrade to ADMS system 60.42 Days
Daily
 
15-Mar-21 10:00 19-Apr-21 17:00 ALTALINK TE 121S Brooks demolish old 138 kV BUS auto restoration module and begin cutting over new module to new control building 35.29 Days
Continuous
 
16-Mar-21 08:00 31-May-21 17:00 ATCO TE 790s Poplar Hill RTU/SCADA update SMP and RTU for Poplar Hill Upgrade Project 76.38 Days
Continuous
 
22-Mar-21 09:08 16-Apr-21 09:08 ATCO TE 733s Simonette RTU/SCADA update SMP (RTU) in alignment with project Scada and protection upgrade scopes 25 Days
Continuous
 
23-Mar-21 17:01 06-Aug-21 06:59 EPCOR Outage T2 (Strathcona) Strathcona TX2 replacement - 1007218 135.58 Days
Continuous
 
24-Mar-21 14:15 17-Apr-21 08:45 ALTALINK Outage 138s Windy Flats 138kV Bus 1 construction activity (P2041) 23.77 Days
Continuous
 
01-Apr-21 07:30 21-Apr-21 18:00 CNRL Outage 842s 75-TR-8701 (842s Horizon Upgrading) transformer maintenance 20.44 Days
Continuous
 
01-Apr-21 07:30 21-Apr-21 18:00 CNRL Outage 842s 75-TR-4701 (842s Horizon Upgrading) transformer maintenance 20.44 Days
Continuous
 
02-Apr-21 14:00 01-May-21 18:00 ATCO Outage 790s 509C (790s Poplar Hill) forced outage 29.17 Days
Continuous
 
02-Apr-21 20:00 25-Jun-21 17:00 EPCOR Outage 72RW3 (Rossdale - Woodcroft) termination completion at Rossdale on RW3 83.88 Days
Continuous
 
02-Apr-21 20:00 16-May-21 17:00 EPCOR Outage T3 (Rossdale) install scaffolding for termination completion at Rossdale on RW3 43.88 Days
Continuous
 
05-Apr-21 08:00 16-Apr-21 17:00 ALTALINK TE 415s Drywood RTU/SCADA upgrade protections to RTU:A87/T1, A21/L2, S50-51/T2 11.38 Days
Continuous
 
05-Apr-21 09:00 17-Apr-21 18:00 ENMAX Outage 25B240-D141 (ENMAX 25), 25B240-D140 (ENMAX 25), 25MD240-3GSU (ENMAX 25), 3GSU-XF-001 (ENMAX 25) maintenance 12.38 Days
Continuous
 
05-Apr-21 11:00 18-Apr-21 13:00 ENMAX Outage 2.83L (ENMAX 2 - 2.83L tap) realign 2.83L 13.08 Days
Continuous
 
05-Apr-21 11:00 18-Apr-21 13:00 ALTALINK IO Enmax 2.83L OOS - Info Green Line LRT. Realign 2.83L down Blackfoot trail to 15th ST. 13.08 Days
Continuous
 
06-Apr-21 10:00 16-Apr-21 17:00 ALTALINK Outage 434s T1 (434s East Stony Plain) replace 434s210x, 434s481E & 434s36W breakers and risers 10.29 Days
Continuous
 
10-Apr-21 07:30 19-Apr-21 18:00 CNRL Outage 838s 75-TR-2701 (838s Horizon Mining), 838s 75-TR-2801 (838s Horizon Mining), 75-PLH-903 (838s Horizon Mining - 842s Horizon Upgrading) 260 kV MOD, CT and CVT maintenance and bus maintenance 9.44 Days
Continuous
 
12-Apr-21 07:00 23-Apr-21 17:00 EPCOR Outage 557s CD2404 (557s Castle Downs), 557s T2 (557s Castle Downs) doble, breaker & switch maintenance 11.42 Days
Continuous
 
12-Apr-21 07:00 17-Apr-21 19:00 ALTALINK RB 754L (118s Canmore - 245s Seebe) customer request - 985s energized insulator cleaning 5.5 Days
Daily
 
12-Apr-21 07:00 16-Apr-21 17:00 ALTALINK TE 650S Hansman Lake 715L - correcting TPR channel cable connection 4.42 Days
Daily
 
12-Apr-21 07:15 16-Apr-21 15:45 ALTALINK Outage 391s T1 (391s Balzac) salvage 391s36 and replace with bus work 4.35 Days
Continuous
 
12-Apr-21 07:30 16-Apr-21 17:00 EPCOR Outage E511s Victoria T2 (511s Victoria) perform relay calibrations and op checks 4.4 Days
Continuous
 
12-Apr-21 08:00 16-Apr-21 17:00 ALTALINK TE 121s Brooks RTU/SCADA alarm splitting 4.38 Days
Continuous
 
12-Apr-21 08:00 16-Apr-21 16:00 ALTALINK Outage 510s 2052 (510s Sunnybrook), 510s 1952 (510s Sunnybrook), 510s ACF21 (510s Sunnybrook), 510s ACF22 (510s Sunnybrook) annual filter bank outage 4.33 Days
Continuous
 
12-Apr-21 08:00 26-Apr-21 20:00 Syncrude Outage UE-1 7201 (UE-1 Syncrude Plant 30-2), UE-1 7202 (UE-1 Syncrude Plant 30-2), UE-1 7203 (UE-1 Syncrude Plant 30-2), UE-1 7204 (UE-1 Syncrude Plant 30-2) maintenance 14.5 Days
Continuous
 
12-Apr-21 09:00 21-Apr-21 15:30 REDDEER Outage 217s T2 (217s North Red Deer) power transformer testing and LTC overhaul 9.27 Days
Continuous
 
12-Apr-21 09:30 23-Apr-21 14:30 ALTALINK TE 17s Benalto 240 kV South Bus 2, 17s Benalto 240 kV North Bus 1 240B1 and 240B2 protection taken out of service 11.21 Days
Daily
 
12-Apr-21 09:30 23-Apr-21 17:30 ALTALINK TE 63s Red Deer RTU/SCADA RTU updates required for 17s P&C protection upgrade 11.33 Days
Daily
 
12-Apr-21 09:30 23-Apr-21 14:30 ALTALINK TE 925L (63s Red Deer - 74s Janet) protection upgrade 11.21 Days
Daily
 
12-Apr-21 09:30 23-Apr-21 14:30 ALTALINK TE 63s Red Deer 240kV North Bus 240kV N Bus protection taken out of service 11.21 Days
Daily
 
12-Apr-21 09:30 23-Apr-21 17:30 ALTALINK TE 17s Benalto RTU/SCADA RTU updates required for 900L protection upgrade 11.33 Days
Daily
 
12-Apr-21 09:30 23-Apr-21 14:30 ALTALINK TE 17s T2 (17s Benalto) trip test from T2A protection 11.21 Days
Daily
 
12-Apr-21 09:30 20-Apr-21 18:00 ALTALINK Outage 942L (71s Lamoureux - 681s Bannerman) structure install, conductor tie in, and OPGW installation 8.35 Days
Continuous
 
12-Apr-21 09:30 23-Apr-21 15:00 ALTALINK Outage 900L (17s Benalto - 63s Red Deer) protection upgrade at 17s and 63s 11.23 Days
Continuous
 
12-Apr-21 09:30 30-Apr-21 17:30 ALTALINK Outage 71s 1352 (71s Lamoureux), 71s 1452 (71s Lamoureux), 997L (71s Lamoureux - 410s Josephburg) structure install, conductor tie in, OPGW installation 18.33 Days
Continuous
 
12-Apr-21 10:00 16-Apr-21 17:00 ATCO TE 951S Thickwood Hills protection maintenance 4.29 Days
Continuous
 
12-Apr-21 10:00 16-Apr-21 16:10 ATCO TE 951s 920C (951s Thickwood), 951s Thickwood Hills 240kV Bus collect firmware verisons for engineering on relays 4.26 Days
Continuous
 
12-Apr-21 10:00 16-Apr-21 16:10 ATCO TE 951S Thickwood Hills collect firmware versions for engineering on relays 4.26 Days
Continuous
 
12-Apr-21 10:00 16-Apr-21 16:10 ATCO, ALTALINK TE 939s 1214R (939s Livock), 939s 1216R (939s Livock), 939s 1213R (939s Livock), 12L41 (510s Sunnybrook - 939s Livock) collect firmware versions for engineering on relays 4.26 Days
Continuous
 
12-Apr-21 11:00 18-Apr-21 18:00 ALTALINK, Lethbridge Outage 370s 2552 (370s North Lethbridge), 370s 2352 (370s North Lethbridge), 370s 66 (370s North Lethbridge), 370s 667 (370s North Lethbridge), 370s T6 (370s North Lethbridge), 370s North Lethbridge 138kV Bus 3, 667L (146s Lethbridge MacDonald - 370s North Lethbridge) maintain and doble 370sT6 6.29 Days
Continuous
 
12-Apr-21 17:00 19-Apr-21 16:00 ENMAX Outage 25MD240-1GSU (ENMAX 25) switch maintenance, insulator washing, power factor testing 6.96 Days
Continuous
 
13-Apr-21 07:00 16-Apr-21 17:00 ALTALINK, EPCOR RB 1209L (89s Ellerslie - 330p Genesee) line maintenance 3.42 Days
Continuous
 
13-Apr-21 07:00 16-Apr-21 17:00 ALTALINK, EPCOR RB 1239L (330p Genesee - 510s Sunnybrook) line maintenance 3.42 Days
Continuous
 
13-Apr-21 07:00 16-Apr-21 17:00 ALTALINK, EPCOR IO 1239L (330p Genesee - 510s Sunnybrook) line maintenance 3.42 Days
Continuous
 
13-Apr-21 07:00 16-Apr-21 01:00 ALTALINK, EPCOR IO 1209L (89s Ellerslie - 330p Genesee) line maintenance 2.75 Days
Continuous
 
13-Apr-21 07:00 30-Jun-21 17:00 EPCOR TE Kennedale RTU/SCADA station SA system being upgraded and tested to accommodate future upgrade to ADMS system 78.42 Days
Continuous
 
14-Apr-21 07:30 19-Apr-21 17:30 ALTALINK TE 410s Josephburg RTU/SCADA update the RTU and substation HMI 5.42 Days
Daily
 
14-Apr-21 07:30 19-Apr-21 17:30 ALTALINK TE 71s Lamoureux RTU/SCADA update the RTU and substation HMI 5.42 Days
Daily
 
14-Apr-21 08:00 16-Apr-21 17:00 ALTALINK TE 545s Provost RTU/SCADA change the substation IP Addressing 2.38 Days
Daily
 
15-Apr-21 08:00 25-Apr-21 18:00 SUNCOR, ATCO Outage 29PL6-4 (29EDD-1 Millennium - 836s Steepbank), 29EDD-1 29EDD1s1552 (29EDD-1 Millennium), 29EDD-1 29EDD1s1652 (29EDD-1 Millennium), 836s 622 (836s Steepbank), 836s 623 (836s Steepbank) 72kV line 29PL6-4 outage for line A/B protection upgrades 10.42 Days
Continuous
 
15-Apr-21 08:00 16-Apr-21 16:00 ENMAX Outage 21.1C (ENMAX 21) relay, protection testing - 21RLY138-21CAP 1.33 Days
Continuous
 
16-Apr-21 07:00 16-Apr-21 20:00 ALTALINK Outage 761L (38s East Edmonton - 71s Lamoureux), 38s 761N (38s East Edmonton) replace insulators on switch 38s90 13 Hours
Daily
 
16-Apr-21 07:00 16-Apr-21 17:00 EPCOR Outage 816s P2403 (816s Petrolia) relay maintenance relay op-checks 10 Hours
Continuous
 
16-Apr-21 08:00 16-Apr-21 16:00 NAKODA Outage 162s 138-RB94 (162s Beddington) ENMAX breaker maintenance 8 Hours
Continuous
 
16-Apr-21 08:00 16-Apr-21 18:00 SUNCOR TE 29EDD-2 Tar Island, 29EDD-22 trouble shoot station service ATS 29PZ-001 10 Hours
Continuous
 
16-Apr-21 08:00 16-Apr-21 16:00 ENMAX Outage 26.83L (ENMAX 26 - ENMAX 65) hot spot 26 sub SW 81 center phase hinge and replace counter 8 Hours
Continuous
 
17-Apr-21 08:00 30-Apr-21 18:00 SUNCOR Outage 29EDD-34 Edd34Sub 5 year system PM - 29PL6-45 13.42 Days
Daily
 
17-Apr-21 08:15 17-Apr-21 14:45 ALTALINK Outage 138s Windy Flats 240kV Bus 1, 138s 252 (138s Windy Flats), 138s 552 (138s Windy Flats), 138s 752 (138s Windy Flats), 138s 1052 (138s Windy Flats) facilitate first time energization of 138s T1 (P2041) 6.5 Hours
Daily
 
18-Apr-21 13:00 18-Apr-21 16:00 ENMAX Outage 2.83L (ENMAX 2 - ENMAX 5 - ENMAX 13), 5B138-2.83 (ENMAX 5), 13B138-2.83 (ENMAX 13) Green Line LRT. realign 2.83L down Blackfoot trail to 15th ST, re-install 2s leg jumpers 3 Hours
Continuous
 
18-Apr-21 13:00 18-Apr-21 16:00 ALTALINK IO Enmax 2.83L OOS - Info Green Line LRT, realign 2.83L down Blackfoot trail to 15th ST, re-install 2s leg jumpers 3 Hours
Daily
 
19-Apr-21 07:00 19-Apr-21 12:00 EPCOR Outage BR721 (Rossdale), 814s T1 (814s Bellamy) maintenance op checks 5 Hours
Continuous
 
19-Apr-21 07:00 22-Apr-21 19:00 ALTALINK RB 754L (118s Canmore - 245s Seebe) 985s energized insulator cleaning 3.5 Days
Daily
 
19-Apr-21 07:00 19-Apr-21 17:00 EPCOR Outage 72MG16 (Garneau - Meadowlark) civil work for line addition 10 Hours
Continuous
 
19-Apr-21 07:00 26-Apr-21 18:00 ATCO TE 7L101 (790s Poplar Hill - 944s Lowe Lake), 7L22 (790s Poplar Hill - 7L88 tap), 790s 701C (790s Poplar Hill) de-energizing 700PT1X1 for new wiring 7.46 Days
Continuous
 
19-Apr-21 07:00 27-Apr-21 19:00 ALTALINK Outage Exshaw Extension, L300 (1020s Exshaw extension - 985s Exshaw) testing and maintenance 8.5 Days
Continuous
 
19-Apr-21 07:15 23-Apr-21 15:45 ALTALINK Outage 391s T2 (391s Balzac) salvage 391s34 and replace with bus work and install bird cover on all components 4.35 Days
Continuous
 
19-Apr-21 07:15 23-Apr-21 09:45 ALTALINK Outage 415s T2 (415s Drywood) outage to add T2 "S" protection and add neutral CT circuit 4.1 Days
Continuous
 
19-Apr-21 08:00 30-Apr-21 16:00 ENMAX Outage 162.1TR (162s Beddington) install and test/commission new tap changer controller 11.33 Days
Continuous
 
19-Apr-21 08:00 30-Apr-21 16:00 ALTALINK IO 162.1 TR OOS Enmax install and test/commission new tap changer controller 11.33 Days
Continuous
 
19-Apr-21 08:00 03-May-21 16:00 ATCO Outage 790s 701T (790s Poplar Hill) protection & SCADA upgrade 14.33 Days
Continuous
 
19-Apr-21 08:00 22-Apr-21 17:00 ALTALINK TE 121s Brooks RTU/SCADA alarm splitting 3.38 Days
Continuous
 
19-Apr-21 08:00 19-Apr-21 18:00 ATCO RB 790S Poplar Hill tap up 902s, remove the 144 kV jumper from the bus to 701TCS & maintenance 10 Hours
Continuous
 
19-Apr-21 08:00 22-Apr-21 16:00 ENMAX Outage 21.1TR (ENMAX 21) power factor test transformer, secondary cable tests, transformer maintenance, gas relay testing. oil sampling 3.33 Days
Continuous
 
19-Apr-21 08:00 21-Apr-21 16:00 ALTALINK TE 1109L (ENMAX 25 - ENMAX 65) end to end relay testing at 25s and 65s 2.33 Days
Continuous
 
19-Apr-21 08:00 19-Apr-21 14:00 ATCO Trans Test 2075s ACF21 (2075s Newell) testing valve cooling PLC change over and heat exchanger isolation 6 Hours
Continuous
 
19-Apr-21 08:00 17-May-21 17:00 ATCO Outage 809s 704 (809s Louise Creek) Louise Creek rebuild project, complete wiring for 21A and 21B relays, CT ratio changes, relay programming, commission control, alarms and status and blocking procedures for BF and Bus protections 28.38 Days
Continuous
 
19-Apr-21 08:00 21-Apr-21 16:00 ALTALINK IO 1109L (c65s - 237s) Protections Enmax In 1109L protection relay testing at 25s and 65s, end to end testing 2.33 Days
Continuous
 
19-Apr-21 08:00 27-Apr-21 16:00 ENMAX Outage 5.7TR (ENMAX 5) CT install and bushing replacement, power factor test transformer 8.33 Days
Continuous
 
19-Apr-21 08:00 22-Apr-21 17:00 ALTALINK TE 250P Bighorn Plant RTU/SCADA upgrade firmware on RTU 3.38 Days
Daily
 
19-Apr-21 08:00 21-Apr-21 17:00 ATCO TE 7L43 (739s Edith Lake - 809s Louise Creek) update required to zone settings of 21A and 21B relays 2.38 Days
Continuous
 
19-Apr-21 08:00 12-Jul-21 16:00 ATCO TE 809S Louise Creek Louise Creek sub rebuild project , 144 kV bus protection to be removed from service, commissioning of new bus relay in subsequent outages 84.33 Days
Continuous
 
19-Apr-21 08:15 19-Apr-21 16:45 ALTALINK Outage 121s 814W (121s Brooks), 814L (28s West Brooks - 121s Brooks) cut over trips from new protections on south bus 8.5 Hours
Daily
 
19-Apr-21 08:15 19-Apr-21 14:45 ALTALINK Outage 138s Windy Flats 240kV Bus 1, 138s 252 (138s Windy Flats), 138s 552 (138s Windy Flats), 138s 752 (138s Windy Flats), 138s 1052 (138s Windy Flats) opening breakers on 240 kV bus 1 to facilitate first time energization of 138s 138 kV bus 1 after 48 hr 138sT1 Tx18979 soak for return to service switching (P2041) 6.5 Hours
Daily
 
19-Apr-21 08:45 26-May-21 09:15 ALTALINK Outage 138s 497 (138s Windy Flats), 138s 1852 (138s Windy Flats) advice on 138s497 to allow completion of construction and closing of open point ‘Z' (P2041) 37.02 Days
Continuous
 
19-Apr-21 09:00 22-Apr-21 17:00 ATCO Outage 963s 901T (963s Coyote Lake), 963s 901 (963s Coyote Lake), 963s 701 (963s Coyote Lake), 9L29 (946s Oakland - 963s Coyote Lake), 7L128 (802s Michichi Creek - 963s Coyote Lake) transformer major testing, PRC-005 trip coil testing on breakers 3.33 Days
Continuous
 
19-Apr-21 09:00 21-Apr-21 15:30 ATCO TE 834s Wesley Creek RTU/SCADA update RTU configuration 2.27 Days
Continuous
 
19-Apr-21 09:30 19-Apr-21 18:00 ATCO, ALTALINK Outage 840S McNeill Station, 830L (562s Cypress - 840s McNeill Station) replace failed thyristor (emergency outage) 8.5 Hours
Continuous
AB-SK
19-Apr-21 10:00 19-Apr-21 13:00 SUNCOR TE SUNCOR ICCP Outage SCADA and DMZ network fiber cutover jobs 3 Hours
Continuous
 
19-Apr-21 10:00 26-Apr-21 17:00 ATCO TE ATCO Radio Tower, 861s Eureka River RTU/SCADA Saddle Hills, Silver Valley cut-over circuits to the new IRU radio link 7.29 Days
Continuous
 
19-Apr-21 10:30 22-Apr-21 17:30 ATCO IO 9L913 AltaLink request: replace grading capacitors, breaker maintenance including 1st trip testing, require reclosers blocked on 9L913 at 732s 3.29 Days
Continuous
 
19-Apr-21 10:30 22-Apr-21 17:30 ALTALINK Outage 69s 913N (69s North Barrhead), 913L (69s North Barrhead - 732s Mitsue) replace grading capacitors, breaker maintenance including 1st trip testing 3.29 Days
Continuous
 
19-Apr-21 11:00 30-Apr-21 17:00 ALTALINK Outage 149s T1 (149s Nisku) T1 oil reclaim, bushing replacement, and leak repairs 11.25 Days
Continuous
 
19-Apr-21 11:00 23-Apr-21 17:00 ATCO Outage 813s SVC (813s Little Smoky) SVC maintenance and fix 703T leaks 4.25 Days
Continuous
 
19-Apr-21 11:00 23-Apr-21 17:00 ALTALINK IO A813S SVC OOS - ATCO Info SVC maintenance, 703T leaks 4.25 Days
Continuous
 
19-Apr-21 12:00 22-Apr-21 12:00 ATCO RB 6L37 (724s Hines Creek - 800s Friedenstal) walk up and climbing inspection 3 Days
Continuous
 
19-Apr-21 12:00 22-Apr-21 14:00 ATCO RB 7L10 (730s Rycroft - 754s Ksituan River) walk up and climbing inspection 3.08 Days
Continuous
 
19-Apr-21 12:00 23-Apr-21 08:00 ALTALINK Outage 254s T1 (254s Coaldale) replacement of existing T1 transformer protections 3.83 Days
Continuous
 
19-Apr-21 12:30 22-Apr-21 13:30 ALTALINK Outage 62s T3 (62s Brazeau) transformer maintenance including doble, oil leak repairs, LAs 3.04 Days
Continuous
 
19-Apr-21 13:00 19-Apr-21 14:00 ALTALINK TE 254S Coaldale protection outages 60 Mins
Daily
 
20-Apr-21 07:00 20-Apr-21 14:00 ALTALINK IO 725L (674s-111s-618s) for CofL - Advice 138 kV switch maintenance 7 Hours
Daily
 
20-Apr-21 08:00 20-Apr-21 13:00 ALTALINK, Lethbridge Outage 725L (111s Coalbanks - 674s Lethbridge Bowron), 725AL (618s Riverbend - 725L tap) air break function test and maintance, air break function test and maintance
5 Hours
Continuous
 
20-Apr-21 08:00 22-Apr-21 17:00 ALTALINK TE 254s Supervisory replacement of existing T1 transformer protections 2.38 Days
Continuous
 
20-Apr-21 08:00 27-Apr-21 17:00 ALTALINK TE 370s North Lethbridge RTU/SCADA SCADA splitting between 240 kV and 138 kV RTU’s 7.38 Days
Continuous
 
20-Apr-21 08:00 20-Apr-21 17:00 ALTALINK TE 391S Balzac protection outage to cut over new DC source 9 Hours
Daily
 
20-Apr-21 08:00 22-Apr-21 17:00 ALTALINK TE 391s Balzac RTU/SCADA download and test new HMI configuration 2.38 Days
Continuous
 
20-Apr-21 08:00 20-Apr-21 14:00 ATCO Trans Test 2075s ACF11 (2075s Newell) CSP required for testing valve cooling PLC change over and heat exchanger isolation 6 Hours
Continuous
 
20-Apr-21 08:00 21-Apr-21 17:00 ALTALINK TE 262s Rocky Mountain House RTU/SCADA upgrade SCADA devices 1.38 Days
Daily
 
20-Apr-21 08:00 21-Apr-21 17:00 ALTALINK RB 472AL (221s Sunken Lake - 472L tap), 472L (213s Hughenden - 472AL tap), 472L (648s Metiskow - 472AL tap) hot line work 1.38 Days
Continuous
 
20-Apr-21 08:00 20-Apr-21 14:00 ALTALINK TE 698s Jackfish RTU/SCADA upgrade MPLS 6 Hours
Continuous
 
20-Apr-21 08:00 21-Apr-21 17:00 ALTALINK Outage 472L (213s Hughenden - 472AL tap) temp bypass being installed between 648s - 221s 1.38 Days
Continuous
 
20-Apr-21 08:00 30-Jun-21 17:00 Lethbridge RB 823L (146s Lethbridge MacDonald - 593s Lethbridge Lakeview) installing vaults 71.38 Days
Daily
 
20-Apr-21 08:00 30-Jun-21 17:00 ALTALINK IO 823L (146s - 593s) RB for CofL - Info RB for setting vaults under 138 kV 71.38 Days
Daily
 
20-Apr-21 08:30 20-Apr-21 17:00 ALTALINK TE 197s Bardo RTU/SCADA update configuration to remove RS400 fail alarm 8.5 Hours
Daily
 
20-Apr-21 09:00 20-Apr-21 18:00 ATCO Outage 859s 702T (859s Primrose) tap changer oil fill in conservator compartment 9 Hours
Continuous
 
20-Apr-21 09:00 20-Apr-21 17:00 ALTALINK TE 61s 836N (61s Lodgepole) breaker maintenance 8 Hours
Daily
 
20-Apr-21 09:00 20-Apr-21 17:00 ALTALINK TE 61s Lodgepole RTU/SCADA techs to replace suspected failed supervisory close cube relay 8 Hours
Daily
 
20-Apr-21 10:00 20-Apr-21 17:00 ALTALINK TE 996s Imperial Oil Carson Lake RTU/SCADA RTU troubleshoot 7 Hours
Continuous
 
20-Apr-21 12:00 20-Apr-21 18:00 ALTALINK TE 170s Pike RTU/SCADA, AltaLink TPR Outage upgrade MPLS 6 Hours
Daily
 
20-Apr-21 17:00 26-Apr-21 07:30 ALTALINK RB 942L (71s Lamoureux - 681s Bannerman) structure erection, conductor tie in, and OPGW installation on 997L 5.6 Days
Continuous
 
21-Apr-21 06:00 23-Apr-21 20:00 EPCOR Outage 113s T1 (113s Inland Cement) relay maint & repair 2.58 Days
Continuous
 
21-Apr-21 07:00 21-Apr-21 17:00 ALTALINK IO 181s Station (463L&172L) for CofL - Advi 138 kV switch maintenance 10 Hours
Daily
 
21-Apr-21 07:00 21-Apr-21 17:00 EPCOR Outage V726 (Victoria) maintenance op checks 10 Hours
Continuous
 
21-Apr-21 07:15 22-Apr-21 17:45 ALTALINK Outage 612L (336s Fincastle - 368s Burdett), 336s 612 (336s Fincastle) maintenance on structures 87, 203, 206 and 212 1.44 Days
Continuous
 
21-Apr-21 07:30 27-Apr-21 17:30 ALTALINK TE 429s Nelson Lake RTU/SCADA RTU configuration update 6.42 Days
Daily
 
21-Apr-21 08:00 21-Apr-21 16:00 Lethbridge, ALTALINK Outage 172L (181s Chinook - 370s North Lethbridge), 463L (181s Chinook - 463AL tap) 138 kV switch maintenance 8 Hours
Continuous
 
21-Apr-21 08:00 27-Apr-21 17:00 ALTALINK Outage 429s T1 (429s Nelson Lake), 883L (288s Wolf Creek - 429s Nelson Lake) replace T1 "A" and "S" transformer protection at 429s, trips circuit includes 429s1, 429s883, 429s2160X and 429s2161N 6.38 Days
Continuous
 
21-Apr-21 08:00 28-Apr-21 17:00 CMH Outage MH69s1 69kV North Bus (MH69s1 Power P Switchyard), MH69s1 MH69-2 (MH69s1 Power P Switchyard), MH69s1 MH69-13 (MH69s1 Power P Switchyard), MH69s1 MH69-24 (MH69s1 Power P Switchyard), MH69s1 MH69-34 (MH69s1 Power P Switchyard) rung T14/T5R north T14 segment upgrade phase 4B 7.38 Days
Continuous
 
21-Apr-21 08:00 21-Apr-21 13:00 ALTALINK TE MPLS, AltaLink RTU/SCADA, AltaLink TPR Outage 9278R MPLS - TPR/RTU- upgrade MPLS node 5 Hours
Daily
 
21-Apr-21 08:00 28-Apr-21 16:00 CMH Outage MH69s1 69kV North Bus (MH69s1 Power P Switchyard), 4L (MH69S-1 Power Plant - MH69S-6 Riverview), MH69s6 MH69-607 (MH69s6 Riverview), MH69s1 MH69-2 (MH69s1 Power P Switchyard), MH69s1 MH69-13 (MH69s1 Power P Switchyard), MH69s1 MH69-24 (MH69s1 Power P Switchyard), MH69s1 MH69-34 (MH69s1 Power P Switchyard) MH69-1 and MH69-33 switch replacement 7.33 Days
Continuous
 
21-Apr-21 08:00 21-Apr-21 13:00 TRANSALTAGP TE I-WAP Westlock Algonquin Power upgrade MPLS node & card replacement 5 Hours
Daily
 
21-Apr-21 08:00 22-Apr-21 15:00 ALTALINK Outage 133s T1 (133s Stelco Edmonton), 133s T2 (133s Stelco Edmonton) install 3 arresters in their switchyard 31 Hours
Continuous
 
21-Apr-21 08:00 21-Apr-21 17:00 Saskpower Outage Sask Power SW903T SW915BKR - testing 9 Hours
Continuous
AB-SK
21-Apr-21 08:15 22-Apr-21 17:45 ALTALINK Outage 339s T1 (339s Duchess), 831L (339s Duchess - 831AL tap) complete project deficiencies (from 2020). T1/VR1 maintenance, doble, breaker maintenance, replace gasket (339s23W) 1.4 Days
Continuous
 
21-Apr-21 09:00 28-Apr-21 08:00 ALTALINK Outage 58s T1 (58s Edson) move T1 protections to new building 6.96 Days
Continuous
 
21-Apr-21 09:00 22-Apr-21 17:30 ALTALINK TE 339s Duchess RTU/SCADA RTU database 1.35 Days
Daily
 
21-Apr-21 10:00 21-Apr-21 13:15 SUNCOR TE 29EDD-1 RTU/SCADA updates to D20MX to add settings for new relays GEL90 and SEL411L installed for 29PL6-4 line protection 3.25 Hours
Continuous
 
21-Apr-21 12:00 25-Apr-21 17:00 ALTALINK TE 58s Edson RTU/SCADA RTU updates for P&C Upgrade projec 4.21 Days
Daily
 
21-Apr-21 17:00 22-Apr-21 08:00 ALTALINK Outage 472L (213s Hughenden - 472AL tap) line between open Points A and B 213s stays open 15 Hours
Continuous
 
21-Apr-21 23:00 22-Apr-21 04:00 ALTALINK Outage 62s 12 (62s Brazeau) maintenance 5 Hours
Daily
 
22-Apr-21 04:00 22-Apr-21 07:00 ALTALINK Outage 62s 11 (62s Brazeau) maintenanace 3 Hours
Daily
 
22-Apr-21 07:00 22-Apr-21 17:00 EPCOR Outage V725 (Victoria) relay op checks 10 Hours
Continuous
 
22-Apr-21 07:00 22-Apr-21 17:00 ALTALINK TE 45s Bretona RTU/SCADA radio maintenance 10 Hours
Daily
 
22-Apr-21 07:30 01-May-21 18:00 CNRL Outage 842s 75-TR-5701 (842s Horizon Upgrading) transformer maintenance 9.44 Days
Continuous
 
22-Apr-21 08:00 22-Apr-21 16:00 ENMAX Outage 25B240-D142 (ENMAX 25) breaker maintenance 8 Hours
Continuous
 
22-Apr-21 08:00 24-Apr-21 17:00 ALTALINK Outage 472L (213s Hughenden - 472AL tap) replace 472L410 and 472AL1 2.38 Days
Continuous
 
22-Apr-21 08:00 22-Apr-21 17:00 ALTALINK TE 324s Cassils RTU/SCADA upgrade firewall 9 Hours
Daily
 
22-Apr-21 08:00 22-Apr-21 16:00 ATCO TE 801S RTU Upgrades & Changes, 807S RTU Upgrades & Changes update firmware 8 Hours
Continuous
 
23-Apr-21 07:00 23-Apr-21 17:00 EPCOR Outage V727 (Victoria), V728 (Victoria), E511s Victoria T5 (511s Victoria), CV5 (511s Victoria - 557s Castle Downs) perform maintenance op checks on V2401,V727,V728. 10 Hours
Continuous
 
23-Apr-21 07:00 23-Apr-21 17:30 ALTALINK TE 415s T2 (415s Drywood) functionally verify S protection tripping to other station breakers 10.5 Hours
Daily
 
23-Apr-21 07:15 23-Apr-21 17:45 ALTALINK Outage 463L (15s Fort Macleod - 463AL tap), 463L (181s Chinook - 463AL tap), 463AL (492s Monarch - 463L tap) maintenance on structures 28 and 31 10.5 Hours
Daily
 
23-Apr-21 07:30 30-Apr-21 18:00 CNRL Outage 75-PLH-902 (838s Horizon Mining - 849s Joslyn), 75-PLH-904 (838s Horizon Mining - 842s Horizon Upgrading) 260 kV MOD, CT and CVT maintenance and bus maintenance 7.44 Days
Continuous
 
23-Apr-21 07:30 30-Apr-21 18:00 ATCO IO 75-PLH-902 CNRL has requested 75-PLH-902 OOS 7.44 Days
Continuous
 
23-Apr-21 08:00 29-Apr-21 17:00 ALTALINK Outage 310p 1752 (310p Sundance), 310p 1852 (310p Sundance), 310pT35 (310p Sundance) replacement bus differential protection for ST5/6B bus 6.38 Days
Continuous
 
23-Apr-21 08:00 29-Apr-21 16:00 ENMAX Outage 9.80L (ENMAX 9 - ENMAX 31), 9B138-9.80 (ENMAX 9), 31B138-9.80 (ENMAX 31) cartwright lighting upgrading signage near line 6.33 Days
Continuous
 
23-Apr-21 08:00 29-Apr-21 17:00 ALTALINK, EPCOR RB 1045L (310p Sundance - 320p Keephills - 805s Jasper) AltaLink replacement bus differential protection for 310p ST5/6B bus 6.38 Days
Continuous
 
23-Apr-21 08:00 29-Apr-21 16:00 ALTALINK IO 9.80L OOS Enmax cartwright lighting upgrading signage near line 6.33 Days
Continuous
 
23-Apr-21 08:00 23-Apr-21 16:00 ENMAX Outage 2.83L (ENMAX 13 - 2.83L tap), 13B138-2.83 (ENMAX 13) power factor test 13B138-2.83-CT 8 Hours
Continuous
 
23-Apr-21 08:00 23-Apr-21 16:00 ALTALINK IO 2.83L OOS for Enmax Info power factor test 13B138-2.83-CT 8 Hours
Daily
 
23-Apr-21 08:00 24-Apr-21 19:00 ALTALINK Outage 254s T1 (254s Coaldale) replacement of existing T1 transformer protections 1.46 Days
Continuous
 
23-Apr-21 09:45 23-Apr-21 11:15 ALTALINK Outage 415s 352 (415s Drywood) verify tripping to 352 from T2 S protection 90 Mins
Continuous
 
23-Apr-21 11:15 25-Apr-21 15:00 ALTALINK Outage 415s 21 (415s Drywood), 415s T1 (415s Drywood), 164L (103s Goose Lake - 415s Drywood) verify tripping to 152 from T2 S protection and finish replacement the T1 A protection 2.16 Days
Daily
 
23-Apr-21 13:00 24-Apr-21 14:00 ALTALINK TE 254S Coaldale required protection outage to safely and reliably perform load reading reference measurements 25 Hours
Continuous
 
23-Apr-21 13:31 23-Apr-21 16:00 ALTALINK IO 254s2162X GOI replacement of existing T1 transformer protections 2.48 Hours
Daily
 

Prepared On:   2021-04-15   5:40:30 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