Alberta Electric System Operator
System Co-ordination Plan
2019-09-05 to 2019-09-13
Approved Outages

Previous Version
Download CSV

From To Owner Type Element Scheduled Activity Date/Time Comments Interconnection
04-Oct-18 09:00 15-Jan-20 20:00 Syncrude Outage Mildred T3 (Syncrude Mildred Lake) damaged transformer repairs 468.5 Days
Continuous		  
05-Oct-18 08:00 31-Dec-20 16:00 EPCOR Outage Rossdale C2 (Rossdale) forced outage 818.38 Days
Continuous		  
24-Oct-18 01:13 31-Dec-20 16:00 EPCOR Outage Rossdale C1 (Rossdale) forced outage 799.66 Days
Continuous		  
23-Apr-19 07:00 30-Nov-19 17:00 EPCOR TE EPCOR Network Riverview S/S addition will affect the redundant path on SONET Network 221.46 Days
Continuous		  
29-Apr-19 08:00 06-Sep-19 17:00 EPCOR Outage Namao T3 (Namao) transformer replacement 130.38 Days
Continuous		  
01-May-19 07:00 15-Dec-19 17:00 EPCOR TE 987S Cloverbar upgrade 72 kV BF/anti-islanding protection 228.46 Days
Continuous		  
11-Jun-19 07:00 27-Sep-19 16:00 ALTALINK Outage 394s T2 (394s Empress) replace bus work with new switchgear building 108.38 Days
Continuous		  
17-Jun-19 07:00 05-Oct-19 17:30 ALTALINK Outage 953s T2 (953s Lake Louise) creating temporary open point 'A' 110.44 Days
Continuous		  
17-Jun-19 09:00 01-Nov-19 15:30 REDDEER Outage 194s T1 (194s South Red Deer) maintenance 137.27 Days
Continuous		  
25-Jun-19 08:00 06-Sep-19 17:00 ATCO TE 739s Edith Lake RTU/SCADA RTU configuration update 73.38 Days
Daily		  
01-Jul-19 07:00 01-Oct-19 17:00 EPCOR TE Hardisty T1 (Hardisty) commissioning of new transformer metering 92.42 Days
Continuous		  
03-Jul-19 07:00 01-Oct-19 04:00 ALTALINK TE 953s T1 (953s Lake Louise) removing S50 relay from service until the end of the project 89.88 Days
Daily		  
22-Jul-19 09:00 06-Sep-19 16:00 ATCO Outage 832s 701T (832s Blumenort) replace 701T 46.29 Days
Continuous		  
24-Jul-19 00:00 05-Sep-19 00:00 ALTALINK TE 551L (945s Sunshine Village - 123s Banff) removing A21 & B21 relays from service 43 Days
Continuous		  
24-Jul-19 00:00 05-Sep-19 00:00 ALTALINK TE 945s 26 (945s Sunshine Village),551L (945s Sunshine Village - 953s Lake Louise) removing A21 & B21 relay from service 43 Days
Continuous		  
24-Jul-19 06:00 05-Sep-19 00:00 ALTALINK Outage 551L (945s Sunshine Village - 123s Banff),123s T1 (123s Banff),123s T2 (123s Banff) structures re-building 42.75 Days
Continuous		  
26-Jul-19 12:00 24-Oct-19 16:00 ENMAX Outage 34.2TR (ENMAX 34) 34.2TR replacement & yard construction 90.17 Days
Continuous		  
27-Jul-19 19:18 28-Dec-19 16:00 ATCO Outage 826s 502R (826s Marguerite Lake) forced outage 153.9 Days
Continuous		  
30-Jul-19 07:00 30-Oct-19 17:00 ATCO Outage 791s 701T (791s Rainbow Lake),791s 702T (791s Rainbow Lake) substation rebuild project 92.42 Days
Continuous		  
07-Aug-19 09:00 17-Oct-19 17:00 ALTALINK Outage 205s Castle Rock Ridge 240 kV Bus 2,205s 452 (205s Castle Rock) construction for new wind farm 71.33 Days
Continuous		  
07-Aug-19 16:00 16-Sep-19 16:00 ALTALINK Outage 50L (44s Bearspaw Plant - ENMAX 21) urgent outage to address clearance issues 40 Days
Daily		  
08-Aug-19 07:00 19-Sep-19 17:00 ATCO Outage 796s 701T (796s Nipisi) switching to isolate 701T for 25kV GIS replacement project 42.42 Days
Continuous		  
15-Aug-19 08:00 11-Sep-19 18:00 SUNCOR Outage 836s 624T (836s Steep Bank) 5 year 624T transformer maintenance and repair 27.42 Days
Continuous		  
16-Aug-19 13:50 19-Sep-19 18:00 ALTALINK Outage 795L (121s Brooks - 421s Hays) urgent clearance mitigation 34.17 Days
Continuous		  
19-Aug-19 07:00 06-Sep-19 17:00 EPCOR Outage 987s CCP7214 (987s Clover Bar) breaker replacement 18.42 Days
Continuous		  
19-Aug-19 08:00 04-Oct-19 18:00 SUNCOR Outage 29EDD-56 5 year maintenance 46.42 Days
Continuous		  
19-Aug-19 08:00 06-Sep-19 17:00 ATCO Outage 6L11 (739s Edith Lake - 854s Swan Dive),6L97 (735s Swan River - 739s Edith Lake),739s 601 (739s Edith Lake),739s 603 (739s Edith Lake),739s 602 (739s Edith Lake) install new line protection relays 18.38 Days
Continuous		  
19-Aug-19 10:00 15-Sep-19 16:30 ENMAX, ALTALINK Outage 932L (74s Janet - 162s Beddington),74s 552 (74s Janet),74s 252 (74s Janet),162s 240-RB135 (162s Beddington),162s 240-136 (162s Beddington) line protection upgrade 27.27 Days
Continuous		  
19-Aug-19 10:00 15-Sep-19 16:30 ALTALINK IO 932L Enmax Advice line protection upgrade 27.27 Days
Continuous		  
20-Aug-19 13:03 06-Sep-19 16:00 ATCO TE 989S Quigley replace the ITM card 17.12 Days
Continuous		  
22-Aug-19 17:35 30-Sep-19 16:00 ATCO Outage 732s 501R (732s Mitsue) forced outage 38.93 Days
Continuous		  
24-Aug-19 22:25 09-Sep-19 18:00 ATCO Outage 930s Syn Condenser (930s Arcenciel) forced out-of-service 15.82 Days
Continuous		  
26-Aug-19 07:00 15-Dec-19 17:00 EPCOR TE 816s Petrolia RTU/SCADA IP address update and cutover of RTU to new network 111.46 Days
Daily		  
26-Aug-19 07:00 15-Dec-19 17:00 EPCOR TE 816S Petrolia IP address update and cutover of IED's to new network 111.46 Days
Daily		  
26-Aug-19 08:00 06-Sep-19 16:00 ALTALINK IO 32.83L Enmax Info line protection upgrade 11.33 Days
Continuous		  
26-Aug-19 08:00 06-Sep-19 16:00 ENMAX Outage 32.83L (ENMAX 32 - ENMAX 40) line protection upgrade 11.33 Days
Continuous		  
27-Aug-19 07:00 05-Sep-19 17:00 EPCOR Outage Namao N723 (Namao),Namao N724 (Namao),72CN10 (987s Clover Bar - Namao),Namao T3 (Namao) commissioning/energization of new TX3 9.42 Days
Continuous		  
27-Aug-19 08:00 02-Feb-20 16:00 ATCO TE 740S H.R.Milner replace relays on 144 kV bus differential protection as part of 740S rebuild 159.38 Days
Continuous		  
27-Aug-19 09:30 20-Oct-19 16:00 ATCO Outage 740s H.R.Milner 144 kV Floating Bus,740s 702T (740s H.R.Milner) transformer replacement and bus reconfiguration 54.27 Days
Continuous		  
02-Sep-19 08:00 09-Sep-19 17:00 ATCO, ALTALINK RB 12L41 (510s Sunnybrook - 939s Livock) climbing patrol 7.38 Days
Continuous		  
02-Sep-19 08:00 09-Sep-19 17:30 ALTALINK IO 12L41 (510s-A939s) ATCO - R/B ATCO climbing patrol on 12L41 required 7.4 Days
Daily		  
02-Sep-19 09:00 05-Sep-19 17:00 ALTALINK TE 87s 2352 (87s Gaetz) relay updates on 96/2352 SEL2BFR 3.33 Days
Continuous		  
02-Sep-19 09:00 05-Sep-19 17:00 ALTALINK TE 87s 252 (87s Gaetz) relay update on 96/252 SEL2BFR 3.33 Days
Continuous		  
02-Sep-19 09:00 05-Sep-19 17:00 ALTALINK TE 793L (87s Gaetz - 535s Joffre) relay updates on A21P, G/L6 SEL321-1 3.33 Days
Continuous		  
02-Sep-19 09:00 05-Sep-19 17:00 ALTALINK TE 87s 1652 (87s Gaetz) relay updates on 11(96/25SC/79)/1652 URC60 3.33 Days
Continuous		  
02-Sep-19 09:00 05-Sep-19 17:00 ALTALINK TE 87s 1252 (87s Gaetz) relay updates on 11(96/25SC/79)/1252 URC60 3.33 Days
Continuous		  
02-Sep-19 09:00 05-Sep-19 17:00 ALTALINK TE 87s 1052 (87s Gaetz) relay updates on 96/25SC/1052 URC60 3.33 Days
Continuous		  
02-Sep-19 09:00 05-Sep-19 17:00 ALTALINK TE 759L (87s Gaetz - 276s Prentiss) update relays on A21/L4 SEL311C and B21/L4 URD60 3.33 Days
Continuous		  
02-Sep-19 09:00 05-Sep-19 17:00 ALTALINK TE 914L (86s Bigstone - 87s Gaetz) relay updates on A21/L9 SEL421 and B21/L9 7SA522 3.33 Days
Continuous		  
02-Sep-19 09:00 05-Sep-19 17:00 ALTALINK TE 464L (87s Gaetz - 209s Timberlands) relay updates on A87/21/L7 SEL411L and B87/21/L7 URL90 3.33 Days
Continuous		  
02-Sep-19 09:00 05-Sep-19 17:00 ALTALINK TE 778L (217s North Red Deer - 87s Gaetz) relay updates on A21/L5 SEL311C and B21/L5 URD60 3.33 Days
Continuous		  
02-Sep-19 09:00 05-Sep-19 17:00 ALTALINK TE 914L (87s Gaetz - 63s Red Deer) relay updates on A21/L12 SEL421 and B21/L12 7SA522 3.33 Days
Continuous		  
02-Sep-19 09:00 05-Sep-19 17:00 ALTALINK TE 87s Gaetz 138kV East Bus relay updates on B87/E138B SEL387-5 3.33 Days
Continuous		  
02-Sep-19 09:00 05-Sep-19 17:00 ALTALINK TE 87s Gaetz 138kV West Bus relay updates on A87/W138B 7UT635 and B87/W138B SEL387-5 3.33 Days
Continuous		  
02-Sep-19 09:00 05-Sep-19 17:00 ALTALINK TE 87S Gaetz relay updates on A87/240B1 SEL387-5 and B87/240B1 URB30 3.33 Days
Continuous		  
02-Sep-19 09:00 05-Sep-19 17:00 ALTALINK TE 87s 952 (87s Gaetz) relay update on 96/79/952 URC60 3.33 Days
Continuous		  
02-Sep-19 09:00 05-Sep-19 17:00 ALTALINK TE 87s 852 (87s Gaetz) relay update on 96/852 SEL2BFR 3.33 Days
Continuous		  
02-Sep-19 09:00 05-Sep-19 17:00 ALTALINK TE 87s Gaetz 240kV East Bus relay updates on A87/E240B URB30 and B87/E240B SEL387-5 3.33 Days
Continuous		  
02-Sep-19 09:00 05-Sep-19 17:00 ALTALINK TE 756L (87s Gaetz - 535s Joffre) update relays on A21P,G/L1 SEL321-1 3.33 Days
Continuous		  
02-Sep-19 10:00 05-Sep-19 15:00 ALTALINK TE 87s Gaetz RTU/SCADA new HMI SMP4250 and RTU HMI functional checks 3.21 Days
Continuous		  
03-Sep-19 05:00 06-Sep-19 15:00 ALTALINK Outage 58L (245s Seebe - 32s Barrier) urgent fire mitigation 3.42 Days
Daily		  
03-Sep-19 05:00 06-Sep-19 15:00 ALTALINK TE 32s Barrier RTU/SCADA the power line carrier on 58L will be out of service daily for urgent fire mitigation 3.42 Days
Daily		  
03-Sep-19 07:00 11-Oct-19 17:00 EPCOR Outage 72CH11 (Hardisty - 987s Clover Bar) termination rebuild 38.42 Days
Continuous		  
03-Sep-19 07:00 01-Nov-19 17:00 EPCOR Outage 816s T2 (816s Petrolia) tap changer & oil reclamation 59.42 Days
Continuous		  
03-Sep-19 07:00 07-Sep-19 17:00 EPCOR Outage Kennedale T2 (Kennedale) doble 4.42 Days
Continuous		  
03-Sep-19 07:00 05-Sep-19 17:00 ALTALINK TE 409s Shell Scotford RTU/SCADA RTU configuration update 2.42 Days
Daily		  
03-Sep-19 07:00 06-Sep-19 17:00 EPCOR Outage Meadowlark T2 (Meadowlark) doble 3.42 Days
Continuous		  
03-Sep-19 07:00 24-Sep-19 17:00 ATCO Outage 729s 701T (729s Otauwau) move protection and underground cable 21.42 Days
Continuous		  
03-Sep-19 07:00 05-Sep-19 18:00 ALTALINK, Lethbridge Outage 207L (111s Coalbanks - 370s North Lethbridge) urgent line clearance mitigation 2.46 Days
Continuous		  
03-Sep-19 07:30 19-Sep-19 16:30 ALTALINK TE 185s Bretville RTU/SCADA CSC control implementation 16.38 Days
Daily		  
03-Sep-19 08:00 06-Sep-19 17:00 ALTALINK TE 74s Janet RTU/SCADA new configurations update 3.38 Days
Daily		  
03-Sep-19 08:00 10-Sep-19 17:00 ALBIAN Outage 920s 902T (920s Jackpine) maintenance 7.38 Days
Continuous		  
03-Sep-19 08:00 12-Sep-19 16:00 ENMAX Outage 22.2TR (ENMAX 22) transformer maintenance and Doble test transformer and cables 9.33 Days
Continuous		  
03-Sep-19 08:00 06-Sep-19 16:00 ATCO TE 7L574 (822s Wolf Lake - 7L574 tap),7L574 (970s Bourque - 7L574 tap),7L35 (7L35 tap - 859s Primrose),ATCO Radio Tower move 7L35/7L574 A & B protection between Bourque, Wolf Lake and Primrose subs to the 7705 Mux at Wolf Lake 3.33 Days
Continuous		  
03-Sep-19 08:00 06-Sep-19 16:00 ATCO TE ATCO Radio Tower,2085s Sheridan RTU/SCADA 2085S RTU upgrades and changes consolidating multiple telecom services in Vegreville 3.33 Days
Continuous		  
03-Sep-19 08:15 12-Sep-19 15:45 ENMAX, ALTALINK IO 932L (74s Janet - 162s Beddington) SCADA equipment upgrade 9.31 Days
Continuous		  
03-Sep-19 08:30 11-Sep-19 09:30 ALTALINK Outage 89s 852 (89s Ellerslie) replace breaker fail protection relay module and breaker control module 8.04 Days
Continuous		  
03-Sep-19 09:00 06-Sep-19 16:00 ALTALINK TE 63s Red Deer RTU/SCADA tying in and testing new R60 & R61 SCADA control and I/O cabinets 3.29 Days
Continuous		  
03-Sep-19 09:00 05-Sep-19 09:00 ALTALINK Outage 115s T2 (115s Mt.Allan) preparation for Project P2023:install piles for new 138kv breaker (252). 2 Days
Continuous		  
03-Sep-19 09:00 06-Sep-19 15:00 ALTALINK TE 377s Hardisty RTU/SCADA Ethernet switch firmware and configurations update 3.25 Days
Continuous		  
03-Sep-19 09:30 05-Sep-19 17:30 ALTALINK RB 1201L (520s Bennett - BCH Cranbrook) component replacements- structure range 350-455 2.33 Days
Daily		  
03-Sep-19 09:30 05-Sep-19 16:00 ATCO Outage 947s 701T (947s Weasel Creek) install bird guards 2.27 Days
Daily		  
03-Sep-19 09:30 12-Sep-19 17:00 ALTALINK Outage 866S Sundance Make-Up upgrade metering 9.31 Days
Continuous		  
03-Sep-19 09:30 06-Sep-19 17:30 ALTALINK RB 610L (336s Fincastle - 83s Taber) urgent line clearance mitigation on structures #21 - 95 3.33 Days
Daily		  
03-Sep-19 09:30 01-Oct-19 10:30 AESO Outage 551BL (551BL1 - 551BCL Tap) install temporary gen 28.04 Days
Continuous		  
03-Sep-19 10:30 06-Sep-19 15:30 ALTALINK Outage 74s C2 (74s Janet) SCADA equipment upgrade 3.21 Days
Continuous		  
03-Sep-19 11:00 07-Sep-19 14:00 ALTALINK TE 1090L (723s Christina Lake - 698s Jackfish) relay updates on A87/21/L1 SEL411L and B87/79/L2 URL90 4.13 Days
Continuous		  
03-Sep-19 12:00 13-Sep-19 16:00 ATCO TE ATCO Radio Tower,740s H.R.Milner RTU/SCADA replace microwave carriers to facilitate H.R. Milner substation upgrade 10.17 Days
Continuous		  
03-Sep-19 12:15 14-Sep-19 17:45 ALTALINK Outage 68s T2 (68s Willesden Green) CS mitigation 11.23 Days
Continuous		  
03-Sep-19 12:31 05-Sep-19 12:30 ALTALINK RB 784L (535s Joffre - 332s Ellis) removing temporary bypass and closing open points 'C' & 'D' 2 Days
Daily		  
03-Sep-19 13:00 05-Sep-19 12:00 ALTALINK Outage 784L (332s Ellis - 784AL tap) removing temporary bypass and closing Open points 'C' & 'D' 1.96 Days
Continuous		  
03-Sep-19 13:30 01-Oct-19 14:30 ALTALINK Outage 551CL1 (945s Sunshine - 551CL1 Tap) install temporary gen 28.04 Days
Continuous		  
04-Sep-19 00:00 05-Sep-19 06:00 ALTALINK Outage 250p22 (250p Bighorn Plant) maintenance and testing 30 Hours
Continuous		  
04-Sep-19 06:00 05-Sep-19 06:00 ALTALINK Outage 250p11 (250p Bighorn Plant) maintenance and testing 24 Hours
Continuous		  
04-Sep-19 07:00 06-Sep-19 17:00 ALTALINK TE 895s Suffield RTU/SCADA RTU configuration update 2.42 Days
Continuous		  
04-Sep-19 07:00 05-Sep-19 18:00 ALTALINK Outage 887L (48s Pocaterra - BCH Britt Creek) urgent fire mitigation, insulator changes, bird perch diverters and damaged wire repair 1.46 Days
Continuous		 AB-BC
04-Sep-19 07:00 05-Sep-19 18:00 BCH IO 1L274 (48s Pocaterra - Britt Creek) Altalink outage 1.46 Days
Continuous		  
04-Sep-19 08:00 06-Sep-19 17:00 ALTALINK TE 286s Yasa RTU/SCADA update RTU configurations to implement the new HMI 2.38 Days
Daily		  
04-Sep-19 08:00 19-Sep-19 16:00 ENMAX TE ENMAX 11 11s arc flash switchgear construction 15.33 Days
Daily		  
04-Sep-19 08:00 05-Sep-19 17:30 ALTALINK TE 13s Deerland RTU/SCADA new HMI installation 1.4 Days
Continuous		  
04-Sep-19 09:00 05-Sep-19 15:00 ALTALINK TE 410S Josephburg UR card replacement - T1 A protection 30 Hours
Daily		  
04-Sep-19 09:00 13-Sep-19 16:00 ATCO Outage 771s 701T (771s Veteran) replace PLC with cooper station controller 9.29 Days
Continuous		  
04-Sep-19 12:00 06-Sep-19 16:30 ALTALINK, CapitalPower Outage 1018s T1 (1018s Shamrock),1148L (1018s Shamrock - 251s Whitla) CT circuit cut over to Vestas VOB and PPC panels 2.19 Days
Continuous		  
04-Sep-19 22:00 05-Sep-19 06:00 ATCO, ALTALINK Outage 7L77 (395s North Holden - 709s Vegreville),395s North Holden 138 kV Bus,701L (395s North Holden - 223s Strome),174L (197s Bardo - 395s North Holden),395s T1 (395s North Holden) bus insulators to be replaced & T1 doble/maintenance 8 Hours
Continuous		  
04-Sep-19 23:00 05-Sep-19 06:00 ATCO, ALTALINK IO 7L77 (395s North Holden - 709s Vegreville) Altalink request - for 138kV bus insulator replacement and TX1 doble/maintenance at 395s 7 Hours
Continuous		  
05-Sep-19 00:00 05-Sep-19 06:00 ALTALINK Outage 551L (945s Sunshine - 551L238),551L (945s Sunshine Village - 123s Banff) close open point C and create new open point D 6 Hours
Daily		  
05-Sep-19 04:00 01-Oct-19 00:00 ALTALINK Outage 551L (945s Sunshine - 551L238) rebuild 25.83 Days
Continuous		  
05-Sep-19 07:00 06-Sep-19 17:00 ALTALINK, EPCOR RB 711L (Inland Cement - 747L tap) washing program 1.42 Days
Daily		  
05-Sep-19 07:00 11-Sep-19 18:00 ALTALINK Outage 704L (51s Wainwright - 478s Tuccuman) structure replacement work on 704L from structures #260 - 267 6.46 Days
Continuous		  
05-Sep-19 07:00 06-Sep-19 17:00 ALTALINK, EPCOR RB 711L (Inland Cement - 747L tap),747L (37s North Calder - 99s North St Albert) Epcor insulator washing 1.42 Days
Daily		  
05-Sep-19 07:30 05-Sep-19 17:30 ALTALINK Outage 102s SVC (102s Langdon) pull weeds in the SVC fenced area 10 Hours
Daily		  
05-Sep-19 08:00 05-Sep-19 17:00 ALTALINK TE 706L (54s Fort Saskatchewan - 706L72B),706L (410s Josephburg - 706L72D) trouble shoot low signal between relays at both ends 9 Hours
Daily		  
05-Sep-19 08:00 05-Sep-19 16:00 ALTALINK IO 26.81L Enmax Info breaker maintenance 8 Hours
Daily		  
05-Sep-19 08:00 05-Sep-19 13:00 ENMAX Outage 6.80L (ENMAX 35 - ENMAX 6),6.4TR (ENMAX 6) substation washing 5 Hours
Continuous		  
05-Sep-19 08:00 05-Sep-19 16:00 ENMAX Outage 26.1TR (ENMAX 26),26.81L (ENMAX 32 - ENMAX 26) breaker maintenance 8 Hours
Continuous		  
05-Sep-19 08:00 05-Sep-19 16:00 ENMAX TE 162s Beddington 932L line protection upgrade, setting changes C60-2 8 Hours
Continuous		  
05-Sep-19 08:00 05-Sep-19 17:30 ALTALINK Outage 33s 1 (33s Spray) urgent repair; 138kV breaker maintenance 9.5 Hours
Continuous		  
05-Sep-19 08:30 05-Sep-19 16:30 ALTALINK TE 781L (172s Sherritt - 71s Lamoureux) 172S: perform standard relay maintenance on 781L B87/21/L2 SEL311L 8 Hours
Daily		  
05-Sep-19 09:00 05-Sep-19 16:30 ALTALINK TE 320P Keephills perform qualitrol modifications on 320p T6 7.5 Hours
Daily		  
05-Sep-19 09:00 05-Sep-19 14:00 ALTALINK Outage 727L (65s High River - 727L52S) replace 138 kV strain insulators 5 Hours
Daily		  
05-Sep-19 10:30 05-Sep-19 17:00 ALTALINK Outage 163s C2 (163s Amoco Empress),163s 67 (163s Amoco Empress) urgent investigating/ troubleshootin 6.5 Hours
Continuous		  
05-Sep-19 12:00 06-Sep-19 13:00 ALTALINK TE 166s Dow Chemical Fort Saskatchewan RTU/SCADA update alarms and RTU password 25 Hours
Continuous		  
05-Sep-19 13:00 05-Sep-19 18:00 ENMAX Outage 6.1TR (ENMAX 6),6.82L (ENMAX 6 - ENMAX 41) substation washing, check reversing switch, oil sampling 5 Hours
Continuous		  
05-Sep-19 15:00 29-Oct-19 08:00 ALTALINK Outage 115s T1 (115s Mt.Allan) T1 replacement, install piles for new 138 kV breaker 53.71 Days
Continuous		  
06-Sep-19 07:00 14-Sep-19 19:00 CMH, Medicine Hat Outage MH69s3 MH69_308 (MH69s3 South Ridge),MH69s5 MH69_502 (MH69s5 NE Crescent Height),MH-30L (MH69s3 South Ridge - MH69s5 NE Crescent Heights) replace poles and framing in difficult access area of line 8.5 Days
Continuous		  
06-Sep-19 07:30 07-Sep-19 17:30 ALTALINK TE 545s Provost RTU/SCADA RTU configuration update 1.42 Days
Daily		  
06-Sep-19 08:00 11-Sep-19 15:00 ALTALINK Outage 581S Amocoricinus replace 138kV and 25kV lightning arrestors on T1 & 25kV, replace 25kV bus PTs and CTs 5.29 Days
Continuous		  
06-Sep-19 08:00 06-Sep-19 16:00 ENMAX Outage ENMAX 65 B138-D83 (ENMAX 65) SF6 gas sample 8 Hours
Continuous		  
06-Sep-19 09:00 06-Sep-19 10:00 EPCOR Outage 987s C2403 (987s Clover Bar),987s C2401 (987s Clover Bar),987s CCP7214 (987s Clover Bar),987s CCP7213 (987s Clover Bar),987s T1 (987s Clover Bar) restore CCP7214 new breaker 60 Mins
Continuous		  
06-Sep-19 12:00 07-Sep-19 13:00 ALTALINK TE 149s Nisku RTU/SCADA update alarms and RTU password 25 Hours
Daily		  
07-Sep-19 08:00 07-Sep-19 16:00 ENMAX Outage 22.81L (ENMAX 22 - ENMAX 39) SF6 gas sample 39B138-22.81 8 Hours
Continuous		  
07-Sep-19 08:00 07-Sep-19 16:00 ALTALINK IO 22.81L Enmax Info SF6 gas sample 39B138-22.81 8 Hours
Daily		  
07-Sep-19 09:00 12-Oct-19 17:00 BCH Outage 5L71 (Mica Creek - Nicola) MCA switchgear roof replacement project. BC Maintenance does not affect the Alberta ATC 35.33 Days
Continuous		 AB-BC
07-Sep-19 11:00 07-Sep-19 12:00 ALTALINK TE 89S Ellerslie relay reboot due to changed communication settings 60 Mins
Daily		  
08-Sep-19 02:00 23-Sep-19 02:00 ENMAX Outage 11.2TR (ENMAX 11) install new transformer secondary cables 15 Days
Continuous		  
08-Sep-19 08:00 08-Sep-19 13:00 ENMAX Outage 31.84L (ENMAX 31 - ENMAX 32),24.81L (ENMAX 31 - ENMAX 24),31.3TR (ENMAX 31),31.2TR (ENMAX 31) fall substation washing, check reversing switch 5 Hours
Continuous		  
08-Sep-19 13:00 08-Sep-19 18:00 ENMAX Outage 31.1TR (ENMAX 31),31.2TR (ENMAX 31),31.1C (ENMAX 31),9.80L (ENMAX 31 - ENMAX 9) fall substation washing 5 Hours
Continuous		  
08-Sep-19 13:00 08-Sep-19 18:00 ALTALINK IO 9.80L Enmax Info fall substation washing 5 Hours
Daily		  
09-Sep-19 04:00 22-Sep-19 18:00 SUNCOR Outage 30EDD-1 5 yr PM on downstream assets. 13.58 Days
Continuous		  
09-Sep-19 07:00 13-Sep-19 17:00 EPCOR Outage Rossdale T1 (Rossdale) Doble 4.42 Days
Continuous		  
09-Sep-19 07:00 23-Oct-19 17:00 EPCOR Outage 72VN21 (Namao - 511s Victoria) maintenance 44.42 Days
Continuous		  
09-Sep-19 07:00 10-Sep-19 17:00 ALTALINK, EPCOR RB 731L/746L (38s East Edmonton - 420s Broadmoor - 746DL19) washing program 1.42 Days
Daily		  
09-Sep-19 07:00 10-Sep-19 17:00 ALTALINK RB 746/731L (420s-E524s-337s-38s) Epcor -RB Epcor insulator washing 1.42 Days
Daily		  
09-Sep-19 07:00 15-Sep-19 18:00 ALTALINK Outage 444L (198s Blackfalds - 217s North Red Deer) clearance mitigation work 6.46 Days
Continuous		  
09-Sep-19 07:00 19-Sep-19 16:30 ALTALINK Outage 205s13 (205s Castle Rock Ridge),205s T1 (205s Castle Rock Ridge) maintenance 10.4 Days
Continuous		  
09-Sep-19 07:30 11-Sep-19 17:00 ALTALINK TE 89s Ellerslie RTU/SCADA update RTU configuration to add new protection relay alarms 2.4 Days
Daily		  
09-Sep-19 08:00 12-Sep-19 17:00 ALTALINK TE 74s Janet RTU/SCADA RTU configurations update 3.38 Days
Daily		  
09-Sep-19 08:00 30-Sep-19 16:00 ATCO Outage 808s 702T (808s Procter & Gamble) distribution connection project 21.33 Days
Continuous		  
09-Sep-19 08:00 13-Sep-19 16:00 ATCO TE ATCO Radio Tower 825s Whitefish Lake, 898s Heart Lake and 72s Liesmer PMU and teleprotection 4.33 Days
Continuous		  
09-Sep-19 08:00 10-Sep-19 17:00 ALTALINK TE 59s Peigan RTU/SCADA new battery monitor point to be configured and checked 1.38 Days
Continuous		  
09-Sep-19 08:00 12-Sep-19 16:00 ATCO RB 7L39 (722s Crystal Lake - 811s Clairmont Lake) cross arm change 3.33 Days
Continuous		  
09-Sep-19 08:00 09-Sep-19 12:00 ENMAX Outage 43.1TR (ENMAX 43),9.83L (ENMAX 43 - ENMAX 9) substation washing 4 Hours
Continuous		  
09-Sep-19 08:00 10-Sep-19 16:00 ENMAX Outage 11.2TR (ENMAX 11) tapchanger inspection 1.33 Days
Continuous		  
09-Sep-19 08:00 13-Sep-19 12:00 ENMAX, ALTALINK Outage 23.80L (74s Janet - ENMAX 23),23.80L 23B138-23.80 Repair pinhole SF6 Leak. (Sub washing Sept 13th am) 4.17 Days
Continuous		  
09-Sep-19 08:00 12-Sep-19 16:00 ALTALINK IO 23.80L Enmax Info 23B138-23.80 repair pinhole SF6 leak 3.33 Days
Continuous		  
09-Sep-19 08:00 19-Sep-19 18:00 MONTANA Outage 120s 1152 (120s Picture Butte),120s 1252 (120s Picture Butte),120s 1352 (120s Picture Butte),120s 1052 (120s Picture Butte) Annual shutdown for routine maintenance 10.42 Days
Continuous		  
09-Sep-19 08:00 16-Sep-19 16:00 ATCO TE 791S Rainbow Lake 7L81 RAS, 7L29, 7L122 and 7L81 protection Relay 7.33 Days
Continuous		  
09-Sep-19 08:30 13-Sep-19 14:00 ATCO Outage 834s 901T (834s Wesley Creek) refurbishment

4.23 Days
Continuous		  
09-Sep-19 09:00 19-Sep-19 18:00 ALTALINK, MONTANA Outage 1201L (520s Bennett - BCH Cranbrook),MATL (120s Picture Butte - Montana) Air Flow Spoiler on Structures 206/2 - 206/4 & 212/8 - 213/3,Component Replacements- Structure Range 350-455 10.38 Days
Continuous		 AB-BC
09-Sep-19 09:00 11-Sep-19 16:00 ATCO Outage 7L132 (767s Oyen - 959s Lanfine) Civil work in 767S Oyen substation,
close to line during work		 2.29 Days
Continuous		  
09-Sep-19 09:00 13-Sep-19 16:00 ALTALINK TE 63s Red Deer RTU/SCADA migrate LAN devices over to the new LAN and misc updates to prep for new SCADA 4.29 Days
Continuous		  
09-Sep-19 09:00 12-Sep-19 16:00 ATCO Outage 6L05 (764s Heisler - 6L05 tap) Pole changes 3.29 Days
Continuous		  
09-Sep-19 09:00 11-Sep-19 16:00 ALTALINK IO 7L132 (A767s - A959s) ATCO Info civil work being done in 767s Oyen substation, close proximity to 144 KV line 2.29 Days
Continuous		  
09-Sep-19 09:00 09-Sep-19 15:00 ALTALINK TE 5s T1 (5s East Calgary) UR card replacement, replace T60 power supply, B protection out of service 6 Hours
Daily		  
09-Sep-19 09:00 19-Sep-19 18:00 BCH IO 5L94 (Cranbrook - 102s Langdon) component replacements- structure range 350-455 10.38 Days
Continuous		 AB-BC
09-Sep-19 09:00 13-Sep-19 15:00 ALTALINK TE 377s Hardisty RTU/SCADA RTU configurations update 4.25 Days
Continuous		  
09-Sep-19 09:30 12-Sep-19 17:30 ALTALINK RB 784L (535s Joffre - 332s Ellis),784AL (482s Haynes - 784L tap) salvaging bypass 3.33 Days
Continuous		  
09-Sep-19 10:15 19-Sep-19 18:30 ALTALINK Outage 64s T2 (64s East Crossfield),901AL (64s East Crossfield - 901L tap) replace bushings, fix leaks, doble, maintenance 10.34 Days
Continuous		  
09-Sep-19 11:00 09-Sep-19 17:30 ALTALINK TE 5S East Calgary 138 kV bus relay maintenance on 3CDVXD 59L-AB/138 B138B 3CDVXD 59L-BC/138 B138B 6.5 Hours
Daily		  
09-Sep-19 11:30 12-Sep-19 07:00 ALTALINK Outage 359s T1 (359s Esso West Pembina) Transformer maintenance 2.81 Days
Continuous		  
09-Sep-19 12:00 12-Sep-19 16:00 ALTALINK Outage 520s T1 (520s Bennett) Change 240/500kv bus work 3.17 Days
Continuous		  
09-Sep-19 12:00 09-Sep-19 18:00 ENMAX Outage 43.2TR (ENMAX 43),33.84L (ENMAX 43 - ENMAX 33) substation washing 6 Hours
Continuous		  
09-Sep-19 12:30 12-Sep-19 18:00 ALTALINK Outage 283s 31 (283s Violet Grove),283s C1 (283s Violet Grove) Replace CTs 3.23 Days
Continuous		  
09-Sep-19 13:30 09-Sep-19 17:00 ALTALINK TE 283S Violet Grove replace 138 kV CTs at 283s31 3.5 Hours
Daily		  
10-Sep-19 02:00 15-Sep-19 14:00 EPCOR Outage 72CK12 (987s Clover Bar - Kennedale),987s CGB2 (987s Clover Bar),987s CC13 (987s Clover Bar),987s CCP7213 (987s Clover Bar),987s CK725 (987s Clover Bar) disconnect aux contacts and doble 5.5 Days
Continuous		  
10-Sep-19 02:00 11-Sep-19 02:00 ENMAX Outage 11.3TR (ENMAX 11) 11s arc flash switchgear construction. 24 Hours
Continuous		  
10-Sep-19 07:00 11-Sep-19 17:00 ALTALINK TE 409S Shell Scotford ethernet switch firmware and configurations update 1.42 Days
Daily		  
10-Sep-19 07:00 15-Sep-19 17:00 EPCOR Outage 987s CK725 (987s Clover Bar),Kennedale K724 (Kennedale),72CK12 (987s Clover Bar - Kennedale) disconnect aux contacts and doble 5.42 Days
Continuous		  
10-Sep-19 07:00 10-Sep-19 13:00 ALTALINK Outage 973L (39s Bickerdike - 310p Sundance) urgent fire mitigation - replace OHSW assembly on structure 250 6 Hours
Daily		  
10-Sep-19 07:00 10-Sep-19 18:00 ALTALINK Outage 216s T1 (216s Knightsbridge),216s T2 (216s Knightsbridge) NGR and electrical equipment maintenance 11 Hours
Daily		  
10-Sep-19 07:30 10-Sep-19 12:00 ATCO, ALTALINK Outage 526s 152 (526s Buffalo Creek),7L129 (526s Buffalo Creek - 710s Vermilion) tank heater repair 4.5 Hours
Daily		  
10-Sep-19 07:30 10-Sep-19 12:00 ATCO IO 7L129 (526s Buffalo Creek - 710s Vermilion) Altalink request - tank heater repair @ 526s 4.5 Hours
Continuous		  
10-Sep-19 07:30 10-Sep-19 12:00 ATCO, ALTALINK IO 7L50 (757s Battle River - 526s Buffalo Creek) Altalink request - tank heater repair @ 526s 4.5 Hours
Continuous		  
10-Sep-19 08:00 10-Sep-19 17:00 ALTALINK TE AltaLink Radio Tower new MW radio cut over at 9038R East Edmonton & 9089R Ellerslie 9 Hours
Daily		  
10-Sep-19 08:00 12-Sep-19 17:00 ALTALINK TE 286s Yasa RTU/SCADA ethernet switch firmware and configurations update 2.38 Days
Daily		  
10-Sep-19 08:00 10-Sep-19 18:00 ENMAX Outage 2.81L (ENMAX 2 - ENMAX 9),9.2TR (ENMAX 9),9.3TR (ENMAX 9),9.83L (ENMAX 43 - ENMAX 9) fall substation washing and maintain SW81 10 Hours
Continuous		  
10-Sep-19 08:00 10-Sep-19 16:00 ALTALINK TE 38s East Edmonton RTU/SCADA 38s East Edmonton SR760 remote access 8 Hours
Continuous		  
10-Sep-19 08:30 11-Sep-19 17:00 ALTALINK TE 893L (312s Fidler - 893AL tap),312s T1 (312s Fidler) change alarm settings: 893L B87/21/L9 URL90 T1 A87/50/51/T1 SEL387E 1.35 Days
Daily		  
10-Sep-19 08:45 10-Sep-19 10:15 ALTALINK Outage 89s 452 (89s Ellerslie) replace existing breaker fail protection relay and breaker control modules with C60 module and functional testing 90 Mins
Daily		  
10-Sep-19 09:00 12-Sep-19 15:00 ALTALINK TE 320P Keephills UR card replacement (bus prot (240T1B B)) 2.25 Days
Daily		  
10-Sep-19 09:00 10-Sep-19 15:00 ALTALINK TE 893L (806s Oldman River - 312s Fidler) replace UR card (893L/L1 B) 6 Hours
Daily		  
10-Sep-19 09:15 10-Sep-19 10:45 ALTALINK TE 89S Ellerslie replace existing breaker fail protection relay module and breaker control module with C60 module 90 Mins
Daily		  
10-Sep-19 10:00 11-Sep-19 10:00 ATCO Outage 851s 701T (851s Morse River) repair leaks 24 Hours
Continuous		  
10-Sep-19 10:16 10-Sep-19 11:45 ALTALINK Outage 89s 1252 (89s Ellerslie) replace existing breaker fail protection relay and breaker control modules with C60 module and functional testing 89 Mins
Daily		  
10-Sep-19 11:46 10-Sep-19 13:15 ALTALINK Outage 89s 1652 (89s Ellerslie) replace existing breaker fail protection relay and breaker control modules with C60 module and functional testing 89 Mins
Daily		  
10-Sep-19 12:00 10-Sep-19 16:00 ALTALINK TE 255s Vulcan RTU/SCADA download and test new configurations 4 Hours
Daily		  
10-Sep-19 12:01 10-Sep-19 17:30 ATCO, ALTALINK Outage 526s 252 (526s Buffalo Creek),7L50 (757s Battle River - 526s Buffalo Creek) tank heater repair 5.48 Hours
Daily		  
10-Sep-19 13:16 10-Sep-19 14:45 ALTALINK Outage 89s 1952 (89s Ellerslie) replace existing breaker fail protection relay and breaker control modules with C60 module and functional testing 89 Mins
Daily		  
10-Sep-19 14:46 10-Sep-19 16:15 ALTALINK Outage 89s 2252 (89s Ellerslie) replace existing breaker fail protection relay and breaker control modules with C60 module and functional testing 89 Mins
Daily		  
11-Sep-19 07:00 11-Sep-19 17:00 ALTALINK, EPCOR RB 747L (37s North Calder - 99s North St Albert),711L (Inland Cement - 747L tap) washing program 10 Hours
Daily		  
11-Sep-19 07:00 11-Sep-19 12:00 ALTALINK Outage 13L/158L (65s High River - 392s Black Diamond) high load move between structures 24 and 25 5 Hours
Daily		  
11-Sep-19 07:00 11-Sep-19 17:00 ALTALINK IO 747/711L (37s-E113s-99s) Epcor - R/B EPCOR insulator washing 10 Hours
Daily		  
11-Sep-19 07:00 12-Sep-19 17:00 ALTALINK Outage 740L (58s Edson - 39s Bickerdike) urgent fire mitigation on structures 1A, 3, 8, 9, 10, 15, 17, 19, 25 and 34 1.42 Days
Daily		  
11-Sep-19 08:00 12-Sep-19 17:00 CNRL Outage 1034s CB1 (1034s Margie),1034s T1 (1034s Margie) replacing ss transformer and installing isolation disconnect 1.38 Days
Continuous		  
11-Sep-19 08:00 11-Sep-19 16:00 ENMAX Outage 15.1TR (ENMAX 15) corrective 8 Hours
Continuous		  
11-Sep-19 08:00 11-Sep-19 12:00 ENMAX Outage 31.84L (ENMAX 31 - ENMAX 32),32.3TR (ENMAX 32) fall substation washing 4 Hours
Continuous		  
11-Sep-19 08:00 11-Sep-19 17:00 ALTALINK TE AltaLink Radio Tower 9232R Beauvais Lake - MDR radio maintenance 9 Hours
Daily		  
11-Sep-19 08:00 12-Sep-19 17:00 ALTALINK TE 38s East Edmonton RTU/SCADA check 1822L reclosure and ground block status and control 1.38 Days
Daily		  
11-Sep-19 08:00 11-Sep-19 12:30 ALTALINK TE 379S Shell Canada Waterton change alarm settings: T1 A87/50/51/T1 URT60 T2 A87/50/51/T2 URT60 4.5 Hours
Daily		  
11-Sep-19 08:30 11-Sep-19 16:30 ALTALINK TE 68s Willesden Green RTU/SCADA remove 25kV bus RAS scheme as per AESO request 8 Hours
Daily		  
11-Sep-19 09:00 24-Sep-19 09:00 ALTALINK Outage 445s T1 (445s Elk River) replace 445s T1 to new TX18964, & replace LA's. 13 Days
Continuous		  
11-Sep-19 09:00 11-Sep-19 16:00 ALTALINK TE AltaLink Radio Tower radio cutiver between 9059R and 9232R 7 Hours
Daily		  
11-Sep-19 09:30 11-Sep-19 11:30 ALTALINK Outage 89s 752 (89s Ellerslie) replace existing breaker fail protection relay module and breaker control module with C60 module 2 Hours
Daily		  
11-Sep-19 10:00 11-Sep-19 17:00 ALTALINK TE 223s Strome RTU/SCADA RTU configurations update for battery bank and charger replacement project 7 Hours
Daily		  
11-Sep-19 11:00 11-Sep-19 18:00 ALTALINK Outage 765L (151s Strathmore - 419s Chestermere) high load move between structures #198 & 199 7 Hours
Daily		  
11-Sep-19 12:00 11-Sep-19 18:00 ENMAX Outage 32.83L (ENMAX 32 - ENMAX 40),32.1TR (ENMAX 32),32.2TR (ENMAX 32),26.81L (ENMAX 32 - ENMAX 26) fall substation washing 6 Hours
Continuous		  
12-Sep-19 07:00 12-Sep-19 19:00 ALTALINK Outage 359S Esso West Pembina maintenance 12 Hours
Daily		  
12-Sep-19 07:00 12-Sep-19 17:00 ALTALINK, EPCOR RB 909L (89s Ellerslie - 665s Dome) washing program 10 Hours
Daily		  
12-Sep-19 07:00 12-Sep-19 17:00 ALTALINK IO 909L (310p-E665s) Epcor - R/B EPCOR insulator washing 10 Hours
Daily		  
12-Sep-19 07:00 13-Sep-19 17:00 ALTALINK TE 650s Hansman Lake RTU/SCADA download and check alarms for new intrusion alarms 1.42 Days
Daily		  
12-Sep-19 07:45 12-Sep-19 17:15 ALTALINK Outage 396s T1 (396s Pincher Creek) techs will be on site for TX temp monitor replacement. 9.5 Hours
Daily		  
12-Sep-19 08:00 12-Sep-19 16:00 ENMAX Outage 24.1TR (ENMAX 24) ground cable corrective 8 Hours
Continuous		  
12-Sep-19 08:00 12-Sep-19 12:00 ENMAX Outage 33.83L (ENMAX 41 - ENMAX 33),33.1TR (ENMAX 33) substation washing 4 Hours
Continuous		  
12-Sep-19 08:30 12-Sep-19 16:30 ALTALINK TE 262S Rocky Mountain House perform standard relay maintenance on SEL311C A21/67N/L7 870L URC60 96/25SC/79/852 S852 870L B21/67N/L7 URD60 8 Hours
Daily		  
12-Sep-19 08:30 12-Sep-19 17:00 ALTALINK TE 55s Olds RTU/SCADA troubleshooting and confirm functional 8.5 Hours
Continuous		  
12-Sep-19 09:00 12-Sep-19 17:00 ALTALINK TE 283S Violet Grove replace 138 kV CTs at 283s31 8 Hours
Daily		  
12-Sep-19 09:00 12-Sep-19 16:00 ALTALINK TE AltaLink Radio Tower radio cutover between 9202R MaButte and 9232R Beauvais Lake 7 Hours
Daily		  
12-Sep-19 10:30 12-Sep-19 18:00 ALTALINK Outage 283s 836W (283s Violet Grove),283s 673 (283s Violet Grove),836L (61s Lodgepole - 283s Violet Grove),283s C1 (283s Violet Grove),283s T1 (283s Violet Grove),673L (283s Violet Grove - 131s Moon Lake),283s 5 (283s Violet Grove) energize the cap bank 7.5 Hours
Daily		  
12-Sep-19 12:00 12-Sep-19 16:00 ALTALINK TE 255s Vulcan RTU/SCADA download and test new configuration 4 Hours
Daily		  
12-Sep-19 12:00 12-Sep-19 18:00 ENMAX Outage 33.84L (ENMAX 43 - ENMAX 33),33.2TR (ENMAX 33) substation washing 6 Hours
Continuous		  
13-Sep-19 07:00 20-Sep-19 18:00 ALTALINK, ATCO Outage 409s T3 (409s Shell Scotford),ALC02L (409s Shell Scotford - 879s Scotford Upgrader),857L (409s Shell Scotford - 410s Josephburg),409s Shell Scotford 138 kV Bus 2,409s T1 (409s Shell Scotford) bushing & insulator replacement, breaker maintenance,wildlife cover, protection upgrade, NGR maintenance 7.46 Days
Continuous		  
13-Sep-19 07:00 13-Sep-19 19:00 ALTALINK Outage 359S Esso West Pembina,202AL (359s Esso West Pembina - 202L tap),202L (178s Cynthia - 202AL tap) 138 kV switch maintenance at 359s 12 Hours
Daily		  
13-Sep-19 07:00 13-Sep-19 17:00 ALTALINK, EPCOR RB 909L (310p Sundance - 665s Dome) washing program 10 Hours
Daily		  
13-Sep-19 07:00 13-Sep-19 18:00 ALTALINK Outage 501L (426s Coalspur - 501CL tap),743L (527s Coal Valley - 743L1A),740L (426s Coalspur - 740L tap),762L (101s Cheviot - 762L2) urgent fire mitigation 11 Hours
Daily		  
13-Sep-19 07:00 13-Sep-19 17:00 ALTALINK IO 909L (310p-E665s) Epcor - R/B EPCOR insulator washing 10 Hours
Daily		  
13-Sep-19 07:30 13-Sep-19 12:30 ALTALINK IO 23.80L Enmax - Breaker Open fall substation washing 5 Hours
Daily		  
13-Sep-19 08:00 13-Sep-19 16:00 ENMAX Outage 33.83L (ENMAX 41 - ENMAX 33),ENMAX 33 B138-33.83 (ENMAX 33) HV breaker maintenance 33B138-33.83 8 Hours
Continuous		  
13-Sep-19 08:00 13-Sep-19 12:00 ENMAX, ALTALINK Outage 23.4TR (ENMAX 23),23.80L (74s Janet - ENMAX 23) fall substation washing, check reversing switch 4 Hours
Continuous		  
13-Sep-19 08:00 13-Sep-19 16:30 ALTALINK TE 38s East Edmonton RTU/SCADA add new component alarms for 215N and 737N 8.5 Hours
Daily		  
13-Sep-19 09:00 13-Sep-19 15:00 ALTALINK TE 857L (409s Shell Scotford - 410s Josephburg) UR card replacement at both 409s and 410s 6 Hours
Daily		  
13-Sep-19 12:00 13-Sep-19 18:00 ENMAX Outage 2.80L (ENMAX 2 - ENMAX 23),23.3TR (ENMAX 23) fall substation washing 6 Hours
Continuous		  

Prepared On:   2019-09-04   3:33:26 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