Alberta Electric System Operator
System Co-ordination Plan
2020-08-13 to 2020-08-21
Approved Outages

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From To Owner Type Element Scheduled Activity Date/Time Comments Interconnection
05-Oct-18 08:00 31-Dec-20 16:00 EPCOR IO Rossdale C2 (Rossdale) forced outage 818.38 Days
Continuous		  
24-Oct-18 01:13 31-Dec-20 16:00 EPCOR IO Rossdale C1 (Rossdale) forced outage 799.66 Days
Continuous		  
19-Sep-19 08:00 31-Oct-20 16:00 ATCO Outage 826s 504R (826s Marguerite Lake) emergency: move reactor from 826s to 732s 408.33 Days
Continuous		  
01-Jan-20 08:00 31-Dec-20 18:00 SUNCOR Outage Unmodeled Transmission Facility (Suncor) 29L3-167, 29L3-141 , 29PL3-63, 29PL3-183, 29PT-241 & 29PL7-4, 29PP-47 & 29PT-576, 29PP-46 & 29PT-575, 144KV NODE,29PT-246, 144KV NODE,29PT-238, 29PT-257 & 29PL7-4,29PT-260 & 29PL7-4, 29PT-250&29PL7-3,29PT-236 & 29PL7-3,29PL3-153/152/196, 29PT-128 & 29PL7-10 365.42 Days
Daily		  
24-Jan-20 08:00 11-Sep-20 16:00 ATCO Outage 2029s ACF13 (2029s Heathfield) Forced outage repairs 231.29 Days
Continuous		  
31-Mar-20 08:00 18-Aug-20 16:00 ENMAX IO 2.84L (ENMAX 2 - ENMAX 8) P1456 ISD Oct 04,2020 140.33 Days
Continuous		  
15-May-20 07:00 23-Sep-20 17:00 EPCOR Outage T2 (Namao) transformer replacement 131.42 Days
Continuous		  
15-May-20 07:00 21-Oct-20 17:00 EPCOR Outage T3 (Strathcona) transformer replacement 159.42 Days
Continuous		  
26-May-20 07:00 15-Aug-20 17:00 EPCOR TE Hardisty EPCOR BF protection upgrade at Hardisty S/S 81.42 Days
Continuous		  
08-Jun-20 07:00 30-Sep-20 17:00 EPCOR TE Woodcroft RTU/SCADA station SA system being upgraded and tested to accommodate future upgrade to ADMS system 114.42 Days
Continuous		  
08-Jun-20 08:00 31-Aug-20 16:00 ATCO TE 826s 144kV bus (826s Margueritelake) protection upgrade 84.33 Days
Continuous		  
15-Jun-20 08:00 03-Nov-20 16:00 ENMAX TE ENMAX 13 line protection upgrade for autoswitching and 138 kV bus differential relays 141.38 Days
Continuous		  
22-Jun-20 18:30 29-Oct-20 15:00 ALTALINK IO 285s T2 (285s East Camrose) install new replacement T2 transformer & new switchgear building - info only 128.85 Days
Continuous		  
29-Jun-20 10:00 14-Aug-20 14:00 ATCO TE 826s Marguerite Lake RTU/SCADA support commissioning during project execution 46.17 Days
Continuous		  
06-Jul-20 07:00 31-Oct-20 17:00 EPCOR TE Poundmaker RTU/SCADA, Poundmaker station SA system being upgraded and tested to accommodate future upgrade to ADMS system 117.42 Days
Continuous		  
06-Jul-20 07:00 31-Oct-20 17:00 EPCOR TE 987S Cloverbar, 987s Cloverbar RTU/SCADA station SA system being upgraded and tested to accommodate future upgrade to ADMS system 117.42 Days
Daily		  
06-Jul-20 08:00 30-Aug-20 16:00 ATCO Outage 826s 902T (826s Marguerite Lake) breaker fail protection upgrade 55.33 Days
Continuous		  
20-Jul-20 08:00 04-Sep-20 16:00 ATCO TE 2029s Heathfield Valve cooling system 46.33 Days
Continuous		  
27-Jul-20 07:00 11-Sep-20 17:00 EPCOR Outage 987s CH724 (987s Clover Bar), H725 (Hardisty Epcor), 72CH11 (987s Clover Bar - Hardisty) degassing 46.42 Days
Continuous		  
28-Jul-20 08:00 21-Aug-20 16:00 ENMAX Outage 13.3TR (ENMAX 13) arc flash mitigation project 24.33 Days
Continuous		  
03-Aug-20 07:00 17-Aug-20 18:30 ALTALINK RB 551L (123s Banff - 953s Lake Louise) Salvage of road accesses to ROW, excavation with track hoes 14.48 Days
Daily		  
03-Aug-20 07:30 27-Aug-20 17:30 ALTALINK TE 150s Clyde RTU/SCADA update RTU configuration to migrate 138kV line (223L) SCADA control, status, metering and alarm points from the old D25 to new SMP RTU 24.42 Days
Daily		  
03-Aug-20 08:00 21-Aug-20 16:00 ENMAX Outage 11B138-11.81 (ENMAX 11), 13B138-11.81 (ENMAX 13), 11.81L (ENMAX 11 - ENMAX 13) arc flash mitigation project line protection upgrade 18.33 Days
Continuous		  
03-Aug-20 08:00 23-Aug-20 20:00 Syncrude Outage Aurora T3 (Aurora) maintenance 20.5 Days
Continuous		  
03-Aug-20 09:30 21-Aug-20 18:30 ALTALINK Outage 150s 223N (150s Clyde), 159s 223 (159s Colinton), 223L (150s Clyde - 159s Colinton) install new structures 18.38 Days
Continuous		  
04-Aug-20 08:00 04-Sep-20 16:00 ALTALINK IO 24.83L Advice for ENMAX gt68 transmission line relocate 31.33 Days
Continuous		  
04-Aug-20 08:00 21-Aug-20 16:00 ATCO TE 770s Threehills RTU/SCADA protection upgrade
17.33 Days
Continuous		  
04-Aug-20 08:00 30-Aug-20 16:00 ATCO TE 7L89 (721s La Corey - 826s Marguerite Lake), 9L36 (825s Whitefish Lake - 826s Marguerite Lake), 9L37 (825s Whitefish Lake - 826s Marguerite Lake), 7L587 (822s Wolf Lake - 826s Marguerite Lake) commissioning to test trips from line protection, perform primary injection, and cut-in PT circuits to new devices 26.33 Days
Continuous		  
04-Aug-20 08:00 06-Sep-20 16:00 ENMAX, ALTALINK Outage 24.83L (74s Janet - ENMAX 24) transmission line relocate 33.33 Days
Continuous		  
04-Aug-20 09:00 28-Aug-20 17:00 EPCOR Outage RR723 (Rossdale) breaker replacement 24.33 Days
Continuous		  
04-Aug-20 09:00 14-Aug-20 18:00 ALTALINK Outage 786L (799s Coleman - BCH Natal) P5 786L urgent repair str's range 76-117 10.38 Days
Continuous		 AB-BC
05-Aug-20 08:00 30-Sep-20 16:00 ATCO TE 794S Valleyview remove failed breaker 702 BF relay and install when it is returned from repair 56.33 Days
Continuous		  
06-Aug-20 13:00 14-Aug-20 18:00 ALTALINK Outage 763L (158s Vauxhall - 763AL) urgent line clearance 8.21 Days
Continuous		  
07-Aug-20 17:00 13-Aug-20 17:00 SUNCOR Outage 635EDD-1000 635PK-1001 (635EDD-1000), 635EDD-1000 635-752-161 (635EDD-1000), 635EDD-1000 635-752-162 (635EDD-1000) maintenance 6 Days
Continuous		  
09-Aug-20 07:00 14-Aug-20 18:00 ALTALINK Outage 514L (513s Lundbreck - 514BL) maintenance work on strs 201 - 447 5.46 Days
Continuous		  
10-Aug-20 07:00 21-Aug-20 17:00 EPCOR Outage 805s T3 (805s Jasper) DGA monitor 11.42 Days
Continuous		  
10-Aug-20 07:00 14-Aug-20 17:00 EPCOR Outage 803s T1 (803s Lambton) doble / SFRA 4.42 Days
Continuous		  
10-Aug-20 07:00 14-Aug-20 17:30 ALTALINK TE 296s Rosyth RTU/SCADA SCADA upgrade project 4.44 Days
Daily		  
10-Aug-20 07:00 14-Aug-20 17:00 ATCO TE 806s Oldman River RTU/SCADA adding line fault location for 893BL 4.42 Days
Daily		  
10-Aug-20 07:00 14-Aug-20 17:30 ALTALINK TE 525s Carseland RTU/SCADA update config to add alarms 4.44 Days
Daily		  
10-Aug-20 07:30 13-Aug-20 18:30 ALTALINK Outage 428s 733X (428s Namaka), 733L (179s Gleichen - 428s Namaka) protection upgrades 3.46 Days
Continuous		  
10-Aug-20 08:00 13-Aug-20 17:00 ATCO Outage 7L24 (846s Grand Centre - 7L24D3) replacing cross-arms, poles and ground rod's 3.38 Days
Continuous		  
10-Aug-20 08:00 13-Aug-20 17:00 ALTALINK TE 87S Gaetz SCADA upgrade project 3.38 Days
Daily		  
10-Aug-20 08:00 13-Aug-20 16:00 ALTALINK TE 428s Namaka RTU/SCADA RTU database updates 3.33 Days
Daily		  
10-Aug-20 08:00 13-Aug-20 16:00 ENMAX, ALTALINK TE 1003L (74s Janet - ENMAX 25) upgrade the firmware for correct operation 3.33 Days
Continuous		  
10-Aug-20 08:00 13-Aug-20 17:00 ALTALINK TE 428S Namaka trip/function tests 3.38 Days
Daily		  
10-Aug-20 08:00 13-Aug-20 16:00 ALTALINK TE 37S North Calder test reclosers for new on site control, complete wiring for new auxiliary relay in breaker reclosing circuit 3.33 Days
Daily		  
10-Aug-20 08:00 14-Aug-20 18:30 ENMAX Outage 5.9TR (ENMAX 5) plastibeton tray replacement 4.44 Days
Continuous		  
10-Aug-20 08:00 13-Aug-20 16:00 ENMAX Outage 37.2TR (ENMAX 37) reinhausen tapchanger maintenance 3.33 Days
Continuous		  
10-Aug-20 08:00 13-Aug-20 17:00 ALTALINK TE 428S Namaka breaker fail outage 3.38 Days
Daily		  
10-Aug-20 08:00 23-Aug-20 20:00 Syncrude Outage Aurora 11 (Aurora), Aurora 12 (Aurora), Aurora 13 (Aurora) operate breaker and switch 13.5 Days
Continuous		  
10-Aug-20 08:00 13-Aug-20 17:00 ALTALINK TE 276S Union Carbide Prentiss cutover all points to new SCADA system- config file updates 3.38 Days
Continuous		  
10-Aug-20 08:00 14-Aug-20 17:00 ALTALINK TE 103S Goose Lake isolate 893L relays for fault locating addition 4.38 Days
Daily		  
10-Aug-20 08:00 14-Aug-20 17:00 ALTALINK TE 312S Fidler isolate 893L relays for fault locating addition 4.38 Days
Daily		  
10-Aug-20 08:00 14-Aug-20 17:00 ATCO TE 806S Oldman River testing fault locating on the following relays: 893BL 4.38 Days
Daily		  
10-Aug-20 08:00 14-Aug-20 17:00 WINDYPWPL TE 112S Windy Point isolate 893AL relays for fault locating addition 4.38 Days
Daily		  
10-Aug-20 08:00 21-Aug-20 16:00 ENMAX TE ENMAX 9 arc flash mitigation project 11.33 Days
Continuous		  
10-Aug-20 08:00 21-Aug-20 16:00 ENMAX TE ENMAX 9 arc flash mitigation project 11.33 Days
Continuous		  
10-Aug-20 08:00 14-Aug-20 18:00 ATCO TE 733s Simonette RTU/SCADA RTU update 4.42 Days
Continuous		  
10-Aug-20 08:00 14-Aug-20 18:00 ATCO TE 810s Dome Cutbank RTU/SCADA RTU update 4.42 Days
Continuous		  
10-Aug-20 08:30 13-Aug-20 16:00 ATCO Outage 801s 906 (801s Anderson) breaker min oil, HLR complete testing 3.31 Days
Continuous		  
10-Aug-20 08:30 13-Aug-20 16:00 ENMAX, ALTALINK TE 1003L (74s Janet - ENMAX 25) firmware upgrades to the following relay: 1003L A87/21/79/RAS/L9 SEL411L 3.31 Days
Continuous		  
10-Aug-20 09:00 20-Aug-20 18:00 ALTALINK Outage 71s 1652 (71s Lamoureux) replacing M/O breaker with a new SF6 Breaker 10.38 Days
Continuous		  
10-Aug-20 09:00 14-Aug-20 15:30 ALTALINK IO 194s 15T2 City of Red Deer - Info on load tap changer testing and overhaul 4.27 Days
Continuous		  
10-Aug-20 09:00 14-Aug-20 15:30 REDDEER Outage 194s T2 (194s South Red Deer) on load tap changer testing and overhaul 4.27 Days
Continuous		  
10-Aug-20 09:00 20-Aug-20 18:00 EPCOR RB ALTALINK - 920LE - RECLOSER BLOCK @ CASTLEDOWNS replacing M/O breaker with a new SF6 breaker 10.38 Days
Continuous		  
10-Aug-20 09:30 24-Aug-20 18:15 ALTALINK Outage 174L (197s Bardo - 395s North Holden) re-build from structure 486 to 539 14.36 Days
Continuous		  
10-Aug-20 09:30 24-Aug-20 18:15 ATCO IO Holden 174L (197s-395s) – GOI
174L re-build from structure 486 to 539
AltaLink requested that ATCO be notified of this outage as their assistance may be required to maintain the voltages in Strome and Vegreville area		 14.36 Days
Continuous		  
10-Aug-20 10:00 13-Aug-20 16:00 ATCO Outage 879s 702T (879s Scotford Upgrader) 35 kV “B” bus maintenance and
Basler relay testing		 3.25 Days
Continuous		  
10-Aug-20 11:00 14-Aug-20 18:00 ALTALINK Outage 262s T1 (262s Rocky Mountain House) 138 kV & 25 kV bushings and 138 kV & 25 kV LAs (T1) & bird cover 4.29 Days
Continuous		  
10-Aug-20 12:00 14-Aug-20 18:00 ALTALINK Outage 776L (308s Albchem Beaverhill Creek - 410s Josephburg), 773L (127s Bruderheim - 308s Albchem Beaverhill Creek), 308S Albchem Beaverhill Creek replace the RTU 4.25 Days
Continuous		  
10-Aug-20 12:00 13-Aug-20 17:30 ALTALINK Outage 391s T1 (391s Balzac) perform 1st trip on 391s9 and PRC 5 tests on 391s30, replace T1 high side bushing, doble, SFRA & tapchanger maintenance 3.23 Days
Continuous		  
10-Aug-20 12:15 16-Aug-20 17:45 ALTALINK Outage 157s T1 (157s Lac La Biche) maintenance, oil reclaim (T1), leak repairs, & VR1 pad repair 6.23 Days
Continuous		  
10-Aug-20 12:30 16-Aug-20 17:30 ALTALINK Outage 797L (268s Whitecourt - 364s Whitecourt industrial) line clearance mitigation str's range 6-64 6.21 Days
Continuous		  
10-Aug-20 12:30 16-Aug-20 17:30 ALTALINK RB 798L (77s Sagitawah - 364s Whitecourt Industrial) line clearance mitigation str's range 54-58 6.21 Days
Continuous		  
10-Aug-20 12:30 16-Aug-20 17:30 ATCO IO AltaLink NW AltaLink outage ATCO’s assistance may be required to maintain the voltage in the Fox Creek and Whitecourt area during the outage and in the next contingency. 6.21 Days
Continuous		  
10-Aug-20 13:00 14-Aug-20 17:00 ALTALINK TE 308S Albchem Beaverhill Creek replace the RTU 4.17 Days
Daily		  
10-Aug-20 13:00 14-Aug-20 17:00 ALTALINK RB 861L (71s Lamoureux - 258s Dow Hydro Carbons) component replacements-insulators 4.17 Days
Continuous		  
11-Aug-20 08:00 13-Aug-20 17:00 ALTALINK TE 322s Cowley Ridge RTU/SCADA upgrade MPLS node 2.38 Days
Daily		  
11-Aug-20 08:00 14-Aug-20 17:00 ALTALINK TE 83s Taber RTU/SCADA supervisory outage to download new configurations 3.38 Days
Daily		  
11-Aug-20 08:00 14-Aug-20 17:00 REDDEER Outage 217s T1 (217s North Red Deer) forced outage 3.38 Days
Continuous		  
11-Aug-20 09:00 14-Aug-20 17:00 ALTALINK TE 336s Fincastle RTU/SCADA supervisory outage to download new configurations and commissioning of new controls 3.33 Days
Continuous		  
12-Aug-20 07:00 13-Aug-20 17:00 ALTALINK Outage 521AL (867s Sundance Blow-Down - 521L), 521L (505L - 512L) maintenance on structures 51, 53, 54, 55, 56, 57, 58, 60A, 61A, 62, 63, 65, and 66 1.42 Days
Continuous		  
12-Aug-20 07:00 13-Aug-20 19:00 ALTALINK TE 254s Coaldale RTU/SCADA update configuration for new alarms 1.5 Days
Daily		  
12-Aug-20 08:00 28-Aug-20 16:00 ENMAX Outage 9.3TR (ENMAX 9) arc flash mitigation project protection outage and MV cable swap 16.33 Days
Continuous		  
12-Aug-20 08:00 13-Aug-20 15:30 ALTALINK TE 511s Crossing firmware upgrade for T11 'A' protection 31.5 Hours
Daily		  
12-Aug-20 08:00 15-Aug-20 16:00 ENMAX Outage 3.3TR (ENMAX 3) Reinhausen tapchanger maintenance, oil sampling MT, TC, check reversing switch 3.33 Days
Continuous		  
12-Aug-20 08:00 17-Aug-20 11:00 ENMAX Outage ENMAX 8 DCTRP. highpot test 2.84L 5.13 Days
Continuous		  
12-Aug-20 08:15 13-Aug-20 17:15 ALTALINK Outage 102s SVC (102s Langdon) spray and pull weeds in the SVC fenced area, glycol leak repairs 1.38 Days
Continuous		  
12-Aug-20 09:30 13-Aug-20 15:00 ALTALINK TE 510S Sunnybrook firmware upgrade for T11 A & B protection 29.5 Hours
Daily		  
12-Aug-20 13:00 17-Aug-20 15:00 ALTALINK TE 263s Strachan RTU/SCADA add door alarms 5.08 Days
Daily		  
12-Aug-20 20:00 13-Aug-20 04:00 ATCO IO 7L81 (FNG Fort Nelson - 791s Rainbow Lake) disconnect maintenance 8 Hours
Continuous		  
13-Aug-20 07:00 13-Aug-20 18:00 ENMAX Outage 40.2TR (ENMAX 40) roxtec installation 11 Hours
Continuous		  
13-Aug-20 07:00 13-Aug-20 18:00 ALTALINK Outage 737L (38s East Edmonton - 95s Imperial Oil Edmonton) line clearance mitigation 11 Hours
Daily		  
13-Aug-20 07:00 14-Aug-20 17:00 ALTALINK TE 170s Pike RTU/SCADA update configuration to add alarms 1.42 Days
Daily		  
13-Aug-20 07:30 13-Aug-20 17:30 ALTALINK TE 321s Al Rothbauer RTU/SCADA update configuration for new battery monitor alarms 10 Hours
Daily		  
13-Aug-20 08:00 16-Aug-20 08:00 SHELL Outage 847s 901T (847s Muskeg River) customer maintenance 3 Days
Continuous		  
13-Aug-20 08:00 13-Aug-20 16:00 ENMAX Outage 162s 138-RB80 (162s Beddington) breaker maintenance 8 Hours
Continuous		  
13-Aug-20 08:00 13-Aug-20 16:00 ATCO RB 7L59 (786s High Level - 789s Keg River) install new cleveland switch that will create a new J2 on the High Level side of Melito 8 Hours
Continuous		  
13-Aug-20 08:00 13-Aug-20 17:00 ALTALINK Outage 37s 81 (37s North Calder) complete wiring, commissioning and function testing for reclosing circuit 9 Hours
Daily		  
13-Aug-20 08:00 13-Aug-20 15:00 ALTALINK TE 213s Hughenden RTU/SCADA update transformer alarms 7 Hours
Daily		  
13-Aug-20 12:00 13-Aug-20 16:00 ALTALINK IO ALC02L (409s-879s) open-end relay maintenance at 879s - ATCO 4 Hours
Daily		  
14-Aug-20 07:00 14-Aug-20 19:00 ALTALINK TE 199s East Airdrie RTU/SCADA update configuration for new alarms 12 Hours
Daily		  
14-Aug-20 07:15 14-Aug-20 17:45 ALTALINK Outage 922L (17s Benalto - 310p Sundance) maintenance on str 461 10.5 Hours
Daily		  
14-Aug-20 09:00 14-Aug-20 10:00 BCH TE 5L94 (Cranbrook - 102s Langdon) protection work 60 Mins
Continuous		  
15-Aug-20 07:00 15-Aug-20 13:00 ALTALINK Outage 172s1 (T1 TX18092) Customer - Advice Customer repairs to their 172s23 Breaker, Does not currently rack out 6 Hours
Continuous		  
15-Aug-20 07:15 17-Aug-20 17:45 ALTALINK Outage 166L (256s Harmattan - 166AL) scope of work including moving and replacing structures 109 and 110 and adding new str 109A 2.44 Days
Continuous		  
15-Aug-20 07:30 16-Aug-20 17:30 ALTALINK Outage 523s T1 and 25kV Bus1 GOI Repair AMI structure and replace 523s T1 LA’s. T1 doble, SFRA. AMI structure repairs, switch replacement (523s8) 1.42 Days
Continuous		  
15-Aug-20 07:30 21-Aug-20 17:30 ALTALINK TE 271s RTU - Supervisory Update RTU configuration to add new transformer monitoring alarms for T1. Loss of visibility for 10 minutes while RTU is update. 6.42 Days
Daily		  
15-Aug-20 08:00 15-Aug-20 12:00 ENMAX TE 11s 11PT138-Z31 Line Protection Upgrade. Cell rewiring 4 Hours
Continuous		  
15-Aug-20 09:00 15-Aug-20 13:00 ENMAX TE 11s Z31 138kV Bus Differential Protection Line Protection Upgrade. Cell rewiring. Bus Zone remains protected by Zone 2 distance protection from infeeding transmission lines. 4 Hours
Continuous		  
15-Aug-20 10:00 17-Aug-20 14:00 ATCO TE 731S 25kV Breaker Relays 731S Elmworth Bkr Replacement and Protection Upgrade project
Block Northstone Power DTT signal for the install of the new temporary signal that will remain in place for the duration of project.
Notification to Northstone Power was made regarding the Temporary Protection Change		 2.17 Days
Continuous		  
16-Aug-20 08:00 23-Aug-20 18:00 SUNCOR Outage 29EDD-55 29Edd-55 bus outage 29PP-37D, 29PT-165
7.42 Days
Continuous		  
16-Aug-20 08:00 16-Aug-20 16:00 ENMAX Outage 2.82L (ENMAX 2 - ENMAX 5) power factor test HV breaker 5B138-2.82 8 Hours
Continuous		  
16-Aug-20 11:00 16-Aug-20 12:00 ALTALINK TE 74s Janet RTU/SCADA update configuration 60 Mins
Daily		  
16-Aug-20 15:30 20-Aug-20 16:00 ALTALINK Outage 523S Bullshead 523s406W 25kV breaker replacement 4.02 Days
Continuous		  
17-Aug-20 07:00 21-Aug-20 17:00 EPCOR Outage 803s T2 (803s Lambton), 803s L2402 (803s Lambton), 803s L2405 (803s Lambton) Doble/ SFRA T2 4.42 Days
Continuous		  
17-Aug-20 07:00 21-Aug-20 17:00 EPCOR Outage 805s T3 (805s Jasper), 805s J2404 (805s Jasper), 805s J2405 (805s Jasper) Doble T3 4.42 Days
Continuous		  
17-Aug-20 07:00 28-Aug-20 17:00 ATCO Outage 2029s ACF14 (2029s Heathfield) trip coil testing 11.42 Days
Continuous		  
17-Aug-20 07:00 21-Aug-20 17:30 ALTALINK TE 296s Rosyth RTU/SCADA SCADA upgrade project 4.44 Days
Daily		  
17-Aug-20 07:00 20-Aug-20 17:00 ALTALINK TE 288s Wolf Creek RTU/SCADA add alarms 3.42 Days
Daily		  
17-Aug-20 07:00 23-Aug-20 17:00 EPCOR Outage T2 (Rossdale) outage for UGD 6.42 Days
Continuous		  
17-Aug-20 07:00 18-Aug-20 19:00 ALTALINK TE 83s Taber RTU/SCADA update configuration for new alarms 1.5 Days
Daily		  
17-Aug-20 07:00 21-Aug-20 17:00 Saskpower Outage Sask Power PR901 transformer & switch maintenance 4.42 Days
Continuous		 AB-SK
17-Aug-20 07:00 18-Aug-20 17:30 ALTALINK TE 59s Peigan RTU/SCADA update configuration to add alarms 1.44 Days
Daily		  
17-Aug-20 07:15 20-Aug-20 17:45 ALTALINK Outage 914L (86s Bigstone - 87s Gaetz), 87s 1252 (87s Gaetz) SCADA upgrade 3.44 Days
Continuous		  
17-Aug-20 07:15 26-Aug-20 17:00 ALTALINK Outage 276s T2(TX 18471) GOI CT upgrade 9.41 Days
Continuous		  
17-Aug-20 07:30 21-Aug-20 18:30 ALTALINK Outage 428s T1 (428s Namaka) Upgrade existing protections, LA replacement, bird cover install 4.46 Days
Continuous		  
17-Aug-20 07:30 24-Aug-20 14:30 ALTALINK Outage 19s 69kV Bus (T8, 133L, 2739s & 352s Sta Outage to replace 19s125 and install SAs for 19s123 & 19s124 7.29 Days
Continuous		  
17-Aug-20 08:00 30-Aug-20 16:00 ATCO Outage 7L61 (780s Lubicon - 796s Nipisi) cross arm and insulator change out 13.33 Days
Continuous		  
17-Aug-20 08:00 20-Aug-20 17:00 ATCO Outage 7L24 (846s Grand Centre - 7L24D3) Replacing Cross-Arms, Poles and Ground Rod's 3.38 Days
Continuous		  
17-Aug-20 08:00 20-Aug-20 17:00 ALTALINK TE 87s Gaetz RTU/SCADA SCADA upgrade project. RTU updates to cutover SCADA points/controls to new SCADA system 3.38 Days
Daily		  
17-Aug-20 08:00 21-Aug-20 18:00 ALTALINK TE 428s Namaka RTU/SCADA RTU database updates 4.42 Days
Daily		  
17-Aug-20 08:00 17-Aug-20 18:00 ENMAX, ALTALINK Outage 1080L (ENMAX 25 - ENMAX 65), 25B240-D138 (ENMAX 25), 25B240-D139 (ENMAX 25) power factor test HV LA 25MD240-1080. 10 Hours
Continuous		  
17-Aug-20 08:00 21-Aug-20 17:00 ATCO Outage 848s 903 (848s Ruth Lake) replace CT 4.38 Days
Continuous		  
17-Aug-20 08:00 21-Aug-20 17:00 ALTALINK TE 428S Namaka trip/function tests; 428s19 4.38 Days
Daily		  
17-Aug-20 08:00 04-Sep-20 16:00 ENMAX Outage 23.4TR (ENMAX 23) protection outage and MV cable swap 18.33 Days
Continuous		  
17-Aug-20 08:00 20-Aug-20 16:00 ENMAX, ALTALINK TE 985L (74s Janet - ENMAX 25) upgrade the firmware for correct operation 3.33 Days
Continuous		  
17-Aug-20 08:00 20-Aug-20 16:00 ENMAX, ALTALINK TE 985L (74s Janet - ENMAX 25) techs to perform CIP firmware upgrades 3.33 Days
Continuous		  
17-Aug-20 08:00 20-Aug-20 17:00 ATCO TE ATCO Radio Tower 9934R Touchwood MPLS - upgrade MPLS node 3.38 Days
Daily		  
17-Aug-20 08:00 21-Aug-20 17:00 ALTALINK TE 428S Namaka functional testing of the protection upgrade of 428s T1 4.38 Days
Daily		  
17-Aug-20 08:00 31-Aug-20 20:00 Syncrude TE T19 72/13.8KV Transformer & Capacitor Bank Outage (31-0-PC15-2) - Plant 31 Powerhouse Following Circuit Breaker will be operated: Breaker 1935, 19215 (Plant 31 Powerhouse) Following switch will be operated: 1934 (Plant 31 Powerhouse) T19 72/13.8KV Transformer & Capacitor Bank Outage (31-0-PC15-2) - Plant 31 Powerhouse

Following Circuit Breaker will be operated: Breaker 1935, 19215 (Plant 31 Powerhouse)

Following switch will be operated: 1934 (Plant 31 Powerhouse)		 14.5 Days
Continuous		  
17-Aug-20 08:00 28-Aug-20 17:00 ALTALINK TE 276s Union Carbide Prentiss RTU/SCADA cutover all points to new SCADA system - configuration file updates - SCADA equipment installation and commissioning 11.38 Days
Daily		  
17-Aug-20 08:00 17-Aug-20 16:00 ENMAX Outage 34B69-16.60 (ENMAX 34), 16.60L (ENMAX 16 - ENMAX 34) power factor test HV breaker. 34B69-16.60 8 Hours
Continuous		  
17-Aug-20 08:00 09-Sep-20 17:00 ALTALINK IO A743s 701T OOS ATCO - Info ATCO: ATCO will have the 144kv/72kv tie transformer @ 743S Sarah Lake out of service Aug 17-Sep 9,2020 for a Breaker replacement project. 23.38 Days
Continuous		  
17-Aug-20 08:00 17-Aug-20 17:00 ATCO Outage 770S 704, 7L159 770S Protection Upgrade - 704 Test and Operate

Test and operate on breaker 704 to move alarm circuits to new SCADA system from old PLC system.
Permit will be required to test trip coil for PRC-005.
Line protection settings will be updated on A and B protection to change soft alarm descriptors.
Each line protection relay (A and B) will only be isolated while the other is in service due to tele-protection being in place.

7L159 will be open at 770S Three Hills end. Line protection will be isolated, one relay at a time.		 9 Hours
Continuous		  
17-Aug-20 08:00 17-Aug-20 16:00 ALTALINK IO 1080L (ENMAX25SUB-ENMAX65SUB) - Info Power factor test HV LA 25MD240-1080. 8 Hours
Daily		  
17-Aug-20 08:00 18-Aug-20 08:00 ATCO Outage 743s 701T (743s Sarah Lake) replace breaker 24 Hours
Continuous		  
17-Aug-20 08:15 17-Aug-20 10:30 ATCO Outage 849s 901 (849s Joslyn Creek) trip coil testing 2.25 Hours
Continuous		  
17-Aug-20 08:30 20-Aug-20 16:00 ATCO Outage 801s 909 (801s Anderson) breaker maintenance 3.31 Days
Continuous		  
17-Aug-20 09:00 21-Aug-20 18:00 ALTALINK Outage 763L (158s Vauxhall - 763AL) urgent line clearance: change structures range 322-406 4.38 Days
Continuous		  
17-Aug-20 09:00 19-Aug-20 17:00 ALTALINK TE 580s Sylvan Lake RTU/SCADA configuration updates for new alarming 2.33 Days
Daily		  
17-Aug-20 09:00 20-Aug-20 18:00 ALTALINK Outage 786L (799s Coleman - BCH Natal) P5 urgent repair Str's range 76-117 3.38 Days
Continuous		 AB-BC
17-Aug-20 10:00 24-Aug-20 15:00 ATCO Outage 7L40 (733s Simonette - 813s Little Smoky) x-arm change out 7.21 Days
Continuous		  
17-Aug-20 10:00 17-Aug-20 12:00 ATCO Outage 7L172 (739s Edith Lake - 743s Sarah Lake), 743s 704 (743s Sarah Lake) breaker trip coil maintenance 2 Hours
Continuous		  
17-Aug-20 10:45 17-Aug-20 13:30 ATCO Outage 849s 902 (849s Joslyn Creek) trip coil testing 2.75 Hours
Continuous		  
17-Aug-20 11:00 21-Aug-20 18:00 ALTALINK Outage 262s T2 (262s Rocky Mountain House) bushings, LAs and bird cover 4.29 Days
Continuous		  
17-Aug-20 11:30 17-Aug-20 17:30 ALTALINK TE 89S Ellerslie update card and firmware and replace battery on T2 protection 6 Hours
Daily		  
17-Aug-20 12:00 09-Sep-20 17:00 ATCO Outage 743s 605 (743s Sarah Lake) replacing breaker 23.21 Days
Continuous		  
17-Aug-20 12:30 20-Aug-20 17:30 ALTALINK Outage 761L (38s East Edmonton - 71s Lamoureux) component replacements including poles on Str's 1-195 3.21 Days
Continuous		  
17-Aug-20 12:30 17-Aug-20 17:00 FORTIS TE 140s Thompson RTU/SCADA SCADA updates for qualitrol & winding temp trips being removed 4.5 Hours
Daily		  
17-Aug-20 12:30 18-Aug-20 17:30 ALTALINK TE 575S Sundre standard relay maintenance 29 Hours
Daily		  
17-Aug-20 13:00 17-Aug-20 17:30 ALTALINK TE 385S Spring Coulee standard relay maintenance 4.5 Hours
Daily		  
18-Aug-20 06:30 20-Aug-20 17:30 ALTALINK RB 737L (38s East Edmonton - 95s Imperial Oil Edmonton) crews working within close proximity on 761L 2.46 Days
Daily		  
18-Aug-20 06:30 20-Aug-20 17:30 ALTALINK, EPCOR RB 921L (71s Lamoureux - 987s Clover Bar) crews working within close proximity on 761L 2.46 Days
Daily		  
18-Aug-20 07:00 21-Aug-20 18:00 ALTALINK Outage 514L (396s Pincher Creek - 514BL) maintenance between Strs 2 & 195 3.46 Days
Daily		  
18-Aug-20 07:00 01-Sep-20 18:30 ALTALINK RB 551L (123s Banff - 953s Lake Louise) salvage of road accesses to ROW, excavation with track hoes 14.48 Days
Daily		  
18-Aug-20 07:30 24-Aug-20 17:30 ALTALINK Outage 271s T2 (271s Shell Jumping Pound) replace existing PT4(271s13) and metering CTs, install new bus support insulators and PT support steel on center phase, replace JB3 and replace T2 revenue meter 6.42 Days
Continuous		  
18-Aug-20 08:00 18-Aug-20 16:00 ALTALINK Outage 5s C3 (5s East Calgary), 5s C4 (5s East Calgary) installing replacement surge arrestor on the cap bank CT neutral 8 Hours
Daily		  
18-Aug-20 08:00 18-Aug-20 16:00 ATCO Outage 7L69 (731s Elmworth - 815s Goodfare) pole relocate for customer 8 Hours
Continuous		  
18-Aug-20 08:00 20-Aug-20 16:00 ENMAX Outage 25B240-D139 (ENMAX 25), 25 B240-D142 (ENMAX 25), ENMAX 25 240kV North Bus, 25B240-D133 (ENMAX 25), 25B240-D136 (ENMAX 25) power factor test and replace switch mechs 2.33 Days
Continuous		  
18-Aug-20 08:00 19-Aug-20 12:00 ATCO Outage 898s 901 (898s Heart Lake) replace trip latch due to issue found during maintenance 28 Hours
Continuous		  
18-Aug-20 08:00 18-Aug-20 10:00 ALTALINK TE 895s T3 (895s Suffield) settings update for NGR install 2 Hours
Daily		  
18-Aug-20 08:00 18-Aug-20 17:00 ALTALINK TE 580s T1 (580s Sylvan Lake) separate out alarms 9 Hours
Daily		  
18-Aug-20 08:00 18-Aug-20 14:00 ALTALINK Outage 396s T1 (396s Pincher Creek), 396s Pincher Creek 69kV Bus, 185L (379s Shell Canada Waterton - 396s Pincher Creek), 514L (396s Pincher Creek - 514BL) replace 69kV switch and fill bushing on 396s30 6 Hours
Continuous		  
18-Aug-20 08:00 25-Aug-20 17:00 ATCO Outage 743s 702T (743s Sarah Lake) replacing breaker 605, 605A & 605B 7.38 Days
Continuous		  
18-Aug-20 08:00 30-Oct-20 17:00 ATCO TE 811s Clairmont Lake RTU/SCADA RTU download and test 73.38 Days
Continuous		  
18-Aug-20 08:00 19-Aug-20 16:00 ENMAX Outage 16.61L (ENMAX 16 - ENMAX 27), 27.1TR (ENMAX 27) tapchanger inspection 1.33 Days
Continuous		  
18-Aug-20 08:00 18-Aug-20 16:00 ENMAX Outage 47B138-771 (ENMAX 47) power factor test HV PT 8 Hours
Continuous		  
18-Aug-20 08:00 18-Aug-20 17:00 ALTALINK TE 157S Lac La Biche UR card replacement (788L/L4 B) 9 Hours
Daily		  
18-Aug-20 08:00 18-Aug-20 17:00 ALTALINK Outage 859L (20s Ghost - T793s Horse Creek), 793s 859W (793s Horse Creek) implement/function sync check changes on M388/389 relay 9 Hours
Daily		  
18-Aug-20 08:00 19-Aug-20 13:00 ALTALINK Outage 336s T2 (336s Fincastle) replace temp SS2 Tx to permanent one, complete bird cover on SS2 TX and 25kV UG bus structure, repair 336s1452 29 Hours
Continuous		  
18-Aug-20 08:00 18-Aug-20 16:00 ALTALINK Outage 221s T3 (221s Sunken Lake) customer installing wildlife cover-up 8 Hours
Daily		  
18-Aug-20 08:15 18-Aug-20 10:00 ATCO Outage 849s 904 (849s Joslyn Creek) PRC-005 trip coil testing 105 Mins
Continuous		  
18-Aug-20 08:30 18-Aug-20 16:30 ALTALINK TE 283S Violet Grove relay maintenance on 836L relays 8 Hours
Daily		  
18-Aug-20 08:30 19-Aug-20 16:30 ALTALINK TE 74S Janet standard relay maintenance 1.33 Days
Daily		  
18-Aug-20 09:00 20-Aug-20 15:30 ALTALINK IO 247s 17T1 City of Red Deer - Info power factor dissipation testing including bushings 2.27 Days
Continuous		  
18-Aug-20 09:00 20-Aug-20 15:30 REDDEER Outage 247s T1 (247s Piper Creek) power factor dissipation testing including bushings 2.27 Days
Continuous		  
18-Aug-20 09:15 18-Aug-20 15:45 ALTALINK Outage 253s C1 (253s Blackie) PRC5 maintenance and perform 1st trip 6.5 Hours
Daily		  
18-Aug-20 10:00 18-Aug-20 12:00 ALTALINK Outage 895s T3 (895s Suffield) tie in riser from new NGR to T3 2 Hours
Daily		  
18-Aug-20 10:00 18-Aug-20 14:00 ALTALINK TE AltaLink Radio Tower, 228s T.M.P.L.Niton RTU/SCADA 9269R radio maintenance 4 Hours
Daily		  
18-Aug-20 10:30 18-Aug-20 13:00 ATCO Outage 849s 905 (849s Joslyn Creek) PRC-005 trip coil testing 2.5 Hours
Continuous		  
18-Aug-20 15:00 18-Aug-20 17:00 ALTALINK TE 895s T3 (895s Suffield) settings update for NGR install. 2 Hours
Daily		  
19-Aug-20 06:00 19-Aug-20 18:30 ALTALINK Outage 747L (99s North St. Albert - 711L) offload new control building onto new foundations 12.5 Hours
Daily		  
19-Aug-20 07:00 19-Aug-20 18:00 ENMAX Outage 10.2TR (ENMAX 10) roxtec installation 11 Hours
Continuous		  
19-Aug-20 07:00 20-Aug-20 17:00 ALTALINK TE 331S Ponoka relay settings change and testing 1.42 Days
Daily		  
19-Aug-20 07:00 20-Aug-20 17:30 ALTALINK TE 799s Coleman RTU/SCADA update configuration to add alarms 1.44 Days
Daily		  
19-Aug-20 08:00 19-Aug-20 17:00 ALTALINK TE AltaLink Radio Tower 9466R - 9028R - replace radio 9 Hours
Daily		  
19-Aug-20 08:00 19-Aug-20 16:00 ENMAX Outage 47.1TR (ENMAX 47) power factor test HV PT 47PT138-Z31 8 Hours
Continuous		  
19-Aug-20 08:00 19-Aug-20 17:00 ATCO Outage 770S Threehills adding new station service transformers 500SST2 to be fed from 500BUS1 9 Hours
Continuous		  
19-Aug-20 08:00 19-Aug-20 17:00 ALTALINK TE 580S Sylvan Lake T2 - removing 'A' & 'S' protections to separate out alarms 9 Hours
Daily		  
19-Aug-20 08:00 19-Aug-20 17:00 ALTALINK TE 353S Plamondon UR card replacement (728L/L3 A) 9 Hours
Daily		  
19-Aug-20 08:00 19-Aug-20 17:00 ALTALINK Outage 433L (291s Cochrane - T793s Horse Creek), 793s 433 (793s Horse Creek) implement/function sync check changes on M388/389 relay 9 Hours
Daily		  
19-Aug-20 08:00 19-Aug-20 17:00 ALTALINK TE 437s Baymag RTU/SCADA upgrade configuration and testing 9 Hours
Daily		  
19-Aug-20 08:30 19-Aug-20 16:30 ALTALINK TE 281S Johnson investigate/repair protection discrepancies 8 Hours
Daily		  
19-Aug-20 08:30 19-Aug-20 16:30 ALTALINK TE 281s Johnson RTU/SCADA RTU database update 8 Hours
Daily		  
19-Aug-20 09:00 21-Aug-20 17:00 ATCO Outage 790s 702T (790s Poplar Hill), 790s 509C (790s Poplar Hill) repair leaks 2.33 Days
Continuous		  
19-Aug-20 09:00 20-Aug-20 14:00 ALTALINK TE 368S Burdett standard relay maintenance 29 Hours
Daily		  
19-Aug-20 12:00 20-Aug-20 16:00 ALTALINK TE 336s Fincastle RTU/SCADA update configuration to add door alarm contacts 28 Hours
Daily		  
19-Aug-20 23:00 20-Aug-20 03:00 ALTALINK Outage 62s 11 (62s Brazeau) maintenance 4 Hours
Daily		  
20-Aug-20 03:00 20-Aug-20 07:00 ALTALINK Outage 62s 12 (62s Brazeau) maintenance 4 Hours
Daily		  
20-Aug-20 07:00 22-Aug-20 18:00 ALTALINK Outage 707L (54s - 166s) - GOI Fire mitigation to repair Structures #5 - 8, 16 - 19, 24, 35 & 36 2.46 Days
Continuous		  
20-Aug-20 07:30 20-Aug-20 17:30 ALTALINK RB 862L (166s Dow Chemical Fort Saskatchewan - 258s Dow Hydro Carbons) Fire mitigation on Structures #1 & 2 10 Hours
Daily		  
20-Aug-20 08:00 24-Aug-20 16:00 ATCO Outage 7L22 (811s Clairmont Lake - 7L22D2) protection upgrade 4.33 Days
Continuous		  
20-Aug-20 08:00 20-Aug-20 16:00 ENMAX Outage 47.2TR (ENMAX 47), 47PT138-Z32. 47.2TR power factor test 8 Hours
Continuous		  
20-Aug-20 08:00 20-Aug-20 11:00 ALTALINK TE 150S Clyde 138KV bus protection 3 Hours
Daily		  
20-Aug-20 08:00 20-Aug-20 14:00 ALTALINK TE AltaLink Radio Tower 9157R - 140s Radio - RTU 6 Hours
Daily		  
20-Aug-20 08:00 20-Aug-20 16:00 ENMAX IO 38s STN SERVICE TRANSFORMER Swap out station service transformer. Stations will run on a generator for the duration of the day except for approximately 1 hour while new transformer is terminated into switchgear. 8 Hours
Continuous		  
20-Aug-20 09:00 20-Aug-20 17:30 ALTALINK Outage 56s C1 (56s Boyle) Urgent repair to circuit switcher 8.5 Hours
Daily		  
20-Aug-20 10:00 25-Aug-20 17:00 ALTALINK TE 55s Olds RTU/SCADA RTU configuration uploads 5.29 Days
Daily		  
20-Aug-20 11:00 20-Aug-20 14:00 ALTALINK TE 150s T1 (150s Clyde) A protection maintenance 3 Hours
Daily		  
20-Aug-20 13:00 22-Aug-20 15:00 ALTALINK TE 392s Black Diamond RTU/SCADA update configuration 2.08 Days
Daily		  
20-Aug-20 14:00 20-Aug-20 17:00 ALTALINK TE 150s T1 (150s Clyde) B protection maintenance 3 Hours
Daily		  
21-Aug-20 08:00 27-Aug-20 18:00 SUNCOR Outage Unmodeled Transmission Facility (Suncor) 29PP-70C & 29PP-70F 6.42 Days
Daily		  
21-Aug-20 08:00 24-Aug-20 16:00 ENMAX Outage 39.3TR (ENMAX 39) Reinhausen tapchanger maintenance 3.33 Days
Continuous		  
21-Aug-20 08:00 21-Aug-20 14:00 ALTALINK Outage 396s T1, 69kV Bus GOI 396s31 replace 69kV switch and fill bushing on 396s30 6 Hours
Daily		  

Prepared On:   2020-08-12   3:57:04 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.

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