Alberta Electric System Operator
System Co-ordination Plan
2020-05-21 to 2020-05-29
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 19-Jun-20 16:00 ATCO Outage 826s 504R (826s Marguerite Lake) emergency: move reactor from 826s to 732s 274.33 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		  
06-Jan-20 07:00 31-May-20 17:00 EPCOR TE 330P Genesee relay maintenance 146.38 Days
Continuous		  
24-Jan-20 08:00 03-Jul-20 16:00 ATCO Outage 2029s ACF13 (2029s Heathfield) Forced outage repairs 161.29 Days
Continuous		  
08-Feb-20 11:03 29-May-20 18:00 ALTALINK Outage 895s T2 (895s Suffield) forced outage 111.25 Days
Continuous		  
10-Feb-20 07:00 12-Jun-20 17:00 EPCOR RB 1139L (367s Harry Smith - EPCOR Riverview) 1139L A/R block at both Harry Smith and Riverview S/S 123.38 Days
Continuous		  
10-Feb-20 07:00 12-Jun-20 17:00 EPCOR RB 1164L (816s Petrolia - EPCOR Riverview) 1164L A/R block at both Petrolia and Riverview S/S 123.38 Days
Continuous		  
31-Mar-20 08:00 04-Oct-20 16:00 ENMAX IO 2.84L (ENMAX 2 - ENMAX 8) P1456 ISD Oct 04,2020 187.33 Days
Continuous		  
01-Apr-20 08:00 30-Jul-20 17:00 EPCOR Outage 987s C72C1 (987s Clover Bar) cutover of new breaker fail protection to C72C1 breaker 120.38 Days
Continuous		  
06-Apr-20 08:00 16-Jun-20 16:00 ENMAX TE ENMAX 28 arc flash mitigation project 71.33 Days
Continuous		  
06-Apr-20 08:00 16-Jun-20 16:00 ENMAX TE 28s Autoswitching Relay Arc Flash Mitigation Project. Protection outage and MV cable swap. C30 removed from service. Yard sectionalizing and reclosing will have to be done remotely by control center while relay is offline 71.33 Days
Continuous		  
06-Apr-20 08:00 16-Jun-20 16:00 ENMAX TE 28s 138kV Bus Differential Protection Arc Flash Mitigation Project. Protection outage and MV cable swap. 138kV BD protection removed from service as required during this time period. Bus remains protected by distance protection from infeed transmission lines. 71.33 Days
Daily		  
14-Apr-20 07:00 31-May-20 17:00 EPCOR IO Rossdale substation automation upgrade project to cutover existing equipment to new built out network 47.42 Days
Daily		  
14-Apr-20 08:00 04-Jun-20 18:00 ENMAX IO Altalink outage. 2.1CAP AML reconfigure / replace caps 51.42 Days
Continuous		  
14-Apr-20 09:00 04-Jun-20 17:00 ALTALINK Outage 5s C3 (5s East Calgary), 5s C4 (5s East Calgary) reconfigure / replace caps 51.33 Days
Continuous		  
16-Apr-20 08:00 04-Oct-20 16:00 ENMAX Outage Future 2.84L DCTRP. Outage#3 Installation of 2.84L to 138kV GIS gear. 2.84L energized on return. 171.33 Days
Continuous		  
17-Apr-20 21:32 22-May-20 16:00 ATCO Outage 780s 706 (780s Lubicon), 780s 706C (780s Lubicon) forced outage breaker relay fail 34.77 Days
Continuous		  
20-Apr-20 08:00 22-May-20 16:00 ALTALINK Outage 283s C1 (283s Violet Grove) forced ouatge due to breaker gas issue 32.33 Days
Continuous		  
28-Apr-20 07:00 26-May-20 08:00 ALTALINK IO 336s T2 (336s Fincastle) Fincastle Fortis capacity increase project (P1902) 28.04 Days
Continuous		  
28-Apr-20 08:00 02-Jun-20 17:00 ALTALINK RB 202L (61s Lodgepole - 62s Brazeau) setting and stringing new 995L structures 1 to 5 beside existing 202L 35.38 Days
Daily		  
04-May-20 03:44 29-May-20 16:00 EPCOR Outage 657s SU2403 (657s Summerside) forced outage 25.51 Days
Continuous		  
04-May-20 07:00 12-Jun-20 17:00 EPCOR TE EPCOR Riverview relay blocking required on 'A' or 'B' protections for 240 kV breaker commissioning 39.42 Days
Daily		  
04-May-20 12:00 18-Jun-20 18:00 ALTALINK Outage 726L (37s North Calder - 71s Lamoureux) component replacement and line clearance mitigation 45.25 Days
Continuous		  
11-May-20 07:00 22-May-20 17:30 ALTALINK TE 562S Cypress isolate 669L & 1011L relays for fault locating addition @ 163s 11.44 Days
Daily		  
11-May-20 07:00 22-May-20 17:30 ALTALINK TE 341S Sand Hills Sub isolate 871L relays for fault locating addition @ 163s 11.44 Days
Daily		  
11-May-20 07:00 22-May-20 17:30 ALTALINK TE 204S Sandy Point isolate 869L relays for fault locating addition @ 163s 11.44 Days
Daily		  
11-May-20 07:00 22-May-20 17:30 ALTALINK TE 163S Amoco Empress adding line fault location 11.44 Days
Daily		  
11-May-20 07:00 22-May-20 17:30 ALTALINK TE 163s Amoco Empress RTU/SCADA adding line fault location 11.44 Days
Daily		  
11-May-20 07:00 22-May-20 17:30 ALTALINK TE 394S Empress isolate 760L relays for fault locating addition @ 163s 11.44 Days
Daily		  
11-May-20 08:00 24-May-20 16:00 ENMAX Outage 162.1TR (ENMAX 162s Beddington) protection upgrade 13.33 Days
Continuous		  
11-May-20 08:00 24-May-20 16:00 ENMAX TE 162.1TR (ENMAX 162s Beddington) protection upgrade 13.33 Days
Daily		  
11-May-20 09:00 22-May-20 16:00 ALTALINK IO 12S Heartland station service transformer replacement 11.29 Days
Continuous		  
14-May-20 07:00 22-May-20 17:00 ALTALINK, EPCOR Outage 921L (71s Lamoureux - 987s Clover Bar) Doble 8.42 Days
Continuous		  
15-May-20 07:00 23-Sep-20 17:00 EPCOR Outage Namao T2 (Namao) transformer replacement 131.42 Days
Continuous		  
15-May-20 07:00 21-Oct-20 17:00 EPCOR Outage Strathcona T3 (Strathcona) transformer replacement 159.42 Days
Continuous		  
15-May-20 08:00 29-May-20 18:00 ALTALINK Outage 151s T1 (151s Strathmore) emergency transformer replacement 14.42 Days
Continuous		  
16-May-20 08:00 22-May-20 18:00 SUNCOR Outage 29EDD-71 752-4651 (29EDD-71), 29EDD-71 752-4652 (29EDD-71) repair of 29PS-430 control circuit failure 6.42 Days
Continuous		  
18-May-20 07:00 25-May-20 20:00 ENMAX, ALTALINK RB 693L (42s Sarcee - ENMAX 10) facilitate UG cable excavation 7.54 Days
Continuous		  
18-May-20 07:00 25-May-20 20:00 ALTALINK RB 916L (5s East Calgary - 42s Sarcee) facilitate UG cable excavation 7.54 Days
Continuous		  
18-May-20 07:00 29-May-20 17:00 ALTALINK TE 244s Bowmanton RTU/SCADA adding line fault locations 11.42 Days
Daily		  
18-May-20 07:00 29-May-20 17:00 ALTALINK TE 244S Bowmanton testing fault locating 11.42 Days
Daily		  
18-May-20 07:00 29-May-20 17:00 ATCO IO Bowmanton AltaLink add fault location capabilities 11.42 Days
Continuous		  
18-May-20 08:00 12-Jun-20 16:00 ENMAX Outage 28.2TR (ENMAX 28) arc flash mitigation project: protection outage and MV cable swap, phasing required on return 25.33 Days
Continuous		  
18-May-20 08:00 25-May-20 17:00 ENMAX IO Altalink outage. 693L facilitate UG cable excavation 7.38 Days
Continuous		  
18-May-20 09:00 22-May-20 16:00 ATCO Outage 7L32 (813s Little Smoky - 862s South Bezanson) cross-arm change out 4.29 Days
Continuous		  
19-May-20 07:00 22-May-20 17:30 ATCO Outage 2075s ACF13 (2075s Newell) PRC-005 trip coil testing 3.44 Days
Continuous		  
19-May-20 07:00 02-Jun-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		  
19-May-20 07:00 29-May-20 17:00 EPCOR Outage RW 2405 (EPCOR Riverview) breaker repair for vendor deficiency 10.42 Days
Continuous		  
19-May-20 07:00 12-Jun-20 17:00 EPCOR TE 1139L (367s Harry Smith - EPCOR Riverview) blocking of redundant 1139L protection 24.42 Days
Continuous		  
19-May-20 07:00 24-May-20 17:00 EPCOR Outage 803s T3 (803s Lambton), 72LH8 (803s Lambton - Hardisty), 72LS24 (803s Lambton - Strathcona) doble testing, disconnect repair and T.C./breaker maintenance 5.42 Days
Continuous		  
19-May-20 08:00 29-May-20 16:00 ATCO TE 770s Threehills RTU/SCADA upgrade and changes 10.33 Days
Continuous		  
19-May-20 08:00 22-May-20 17:00 ATCO RB 7L13 (A808s Procter & Gamble - 845s Big Mountain) XARM and insulator changes 3.38 Days
Continuous		  
19-May-20 08:00 21-May-20 17:00 ENMAX IO Altalink outage. 50L Calgary Ring Road 50L line clearance – installation of pile foundations beneath the 50L circuit for new Str 133 and 134 steel poles 2.38 Days
Continuous		  
19-May-20 08:00 21-May-20 18:00 ALTALINK, ENMAX Outage 50L (44s Bearspaw Plant - ENMAX 21), ENMAX 21 60s50 (ENMAX 21) Calgary Ring Road 50L line clearance for pile foundations for new Str 133 and 134 steel poles 2.42 Days
Continuous		  
19-May-20 08:00 22-May-20 17:30 ALTALINK RB 612L (336s Fincastle - 368s Burdett) fincastle fortis capacity increase project to install 138kV bypass 3.4 Days
Continuous		  
19-May-20 08:00 22-May-20 17:30 ALTALINK RB 610L (83s Taber - 336s Fincastle) fincastle fortis capacity increase project to close open point J 3.4 Days
Continuous		  
19-May-20 08:00 22-May-20 17:30 ALTALINK RB 607L (135s Conrad - 336s Fincastle Sub) fincastle fortis capacity increase project to install 138kV bypass 3.4 Days
Continuous		  
19-May-20 08:00 21-May-20 20:00 Syncrude Outage RL2 (848s Ruth Lake - D05 Syncrude), D05 512 (D05 Syncrude), D05 513 (D05 Syncrude) maintenance 2.5 Days
Continuous		  
19-May-20 08:00 21-May-20 16:00 ENMAX Outage 23.4TR (ENMAX 23) power factor test transformer transformer maintenance 2.33 Days
Continuous		  
19-May-20 08:00 21-May-20 21:00 CMH Outage MH-65L (MH69s7 - Cancarb) PRC-005 compliance testing 2.54 Days
Continuous		  
19-May-20 08:00 31-May-20 16:30 ATCO IO RL2 Syncrude request 12.35 Days
Continuous		  
19-May-20 08:15 25-May-20 16:45 ALTALINK, EPCOR Outage 38s 738W (38s East Edmonton), 738L (38s East Edmonton - 95s Imperial Oil Edmonton) breaker replacement 6.35 Days
Continuous		  
19-May-20 08:15 25-May-20 16:45 ALTALINK Outage 95s T1 (95s Imperal Oil Edmonton) facilitate IOL wiring in their switchgear 6.35 Days
Continuous		  
19-May-20 09:00 22-May-20 08:00 ALTALINK Outage 610L (83s Taber - 336s Fincastle) P1902, install temp bypass 2.96 Days
Continuous		  
19-May-20 09:00 27-May-20 16:00 ENMAX Outage 38.1TR (ENMAX 38) secondary cable replacement phasing required across MD on return 8.29 Days
Continuous		  
19-May-20 09:00 21-May-20 16:00 ATCO RB 9L59 (801s Anderson - 972s Tinchebray) climbing inspection 2.29 Days
Continuous		  
19-May-20 09:00 21-May-20 17:00 ALTALINK TE 83s Taber RTU/SCADA download new configurations and commissioning of new controls, alarms and status to ACC 2.33 Days
Continuous		  
19-May-20 09:00 22-May-20 17:00 ALTALINK TE 336s Fincastle RTU/SCADA download new configurations and commissioning of new controls, alarms and status to ACC 3.33 Days
Continuous		  
19-May-20 09:15 22-May-20 14:45 ALTALINK Outage 245s 10 (245s Seebe) 138kV CT Replacement 3.23 Days
Continuous		  
19-May-20 09:15 21-May-20 17:45 ALTALINK Outage 838L (14s Devon - 325s Leduc), 739L (14s Devon - 305s Acheson), 14s T3 (14s Devon) replace PT 2.35 Days
Continuous		  
19-May-20 09:30 21-May-20 16:30 ALTALINK Outage 359s T1 (359s Esso West Pembina) install new CT’s load side of T1, commission tripping and status to new protection relays from 359s13 2.29 Days
Continuous		  
19-May-20 09:30 22-May-20 17:30 ALTALINK, EPCOR IO 920L (71s Lamoureux - 557s Castle Downs) RB - work on 726L 3.33 Days
Continuous		  
19-May-20 09:30 22-May-20 17:30 ALTALINK, EPCOR RB 920L (71s Lamoureux - 557s Castle Downs) crews working within close proximity to 726L 3.33 Days
Daily		  
19-May-20 11:30 21-May-20 16:30 ALTALINK TE 42S Sarcee PRC005 relay maintenance 2.21 Days
Daily		  
19-May-20 12:00 22-May-20 14:00 ALTALINK, EPCOR Outage 909L (310p Sundance - 665s Dome) components/structure replacements (structures #1B - 214) 3.08 Days
Continuous		  
19-May-20 12:00 22-May-20 14:00 EPCOR IO 909LW (Altalink Required) components/structure replacements 3.08 Days
Continuous		  
19-May-20 12:30 22-May-20 13:30 ALTALINK, EPCOR RB 908L (89s Ellerslie - 816s Petrolia) crews working on parallel 909L 3.04 Days
Daily		  
19-May-20 12:30 22-May-20 13:30 ALTALINK, EPCOR RB 1044L (805s Jasper - 816s Petrolia) crews working on parallel 909L 3.04 Days
Daily		  
19-May-20 12:30 22-May-20 13:30 ALTALINK, EPCOR RB 1045L (310p Sundance - 320p Keephills - 805s Jasper) crews working on parallel 909L 3.04 Days
Daily		  
19-May-20 12:30 22-May-20 13:30 ALTALINK, EPCOR IO 908L (89s Ellerslie - 816s Petrolia) RB - work on adjacent 909L (310p - 665s) 3.04 Days
Continuous		  
19-May-20 12:30 22-May-20 13:30 ALTALINK, EPCOR IO 1044L (805s Jasper - 816s Petrolia) RB - work on adjacent 909L (310p -665s) 3.04 Days
Continuous		  
19-May-20 12:30 22-May-20 13:30 ALTALINK, EPCOR IO 1045L (310p Sundance - 320p Keephills - 805s Jasper) RB - work on adjacent 909L (310p - 665s) 3.04 Days
Continuous		  
20-May-20 07:15 26-May-20 17:45 ALTALINK Outage 753L (65s High River - 253s Blackie) line clearance mitigation (str 157-252) 6.44 Days
Continuous		  
20-May-20 08:00 21-May-20 16:00 ATCO TE 787s High Prairie RTU/SCADA, 882s Triangle RTU/SCADA, ATCO Radio Tower upgrade IRU carrier radio from 813s Little Smoky sub to Brush Mtn tower 1.33 Days
Continuous		  
20-May-20 09:30 21-May-20 17:00 ALTALINK Outage 202L (61s Lodgepole - 62s Brazeau) structure modifications 31.5 Hours
Continuous		  
20-May-20 10:30 21-May-20 15:00 ALTALINK Outage 207s 890 (207s Pinedale), 890L (58s Edson - 207s Pinedale) PRC5 breaker maintenance and replace tank heaters 28.5 Hours
Continuous		  
21-May-20 07:00 22-May-20 17:00 ALTALINK TE 263s Strachan RTU/SCADA download and test new HMI alarms and controls 1.42 Days
Daily		  
21-May-20 07:30 21-May-20 17:30 ALTALINK Outage 185L (379s Shell Canada Waterton - 396s Pincher Creek) line clearance mitigation project, install conductor dampers at structure 30 & 31 10 Hours
Daily		  
21-May-20 08:00 21-May-20 18:00 ALTALINK IO 5s MDS108 & MDS111 - Advice required for trip testing Enmax 2B138-D95 & 2B138D96 breakers, required for 5s cap bank reconfiguration project 10 Hours
Daily		  
21-May-20 08:00 21-May-20 16:00 ALTALINK TE 536s Brookfield RTU/SCADA upgrade MPLS node 8 Hours
Daily		  
21-May-20 08:00 21-May-20 16:00 ENMAX TE ENMAX 2 reconfigure Cap bank breaker and switches, upgrade protection settings, trip testing 8 Hours
Continuous		  
21-May-20 08:00 21-May-20 16:00 ENMAX TE ENMAX 2, ENMAX 2 B138-D95 (ENMAX 2), ENMAX 2 B138-D96 (ENMAX 2) reconfigure cap bank breaker and switches, upgrade protection settings. trip testing 8 Hours
Continuous		  
21-May-20 09:00 21-May-20 16:30 ALTALINK TE 106s Paddle River RTU/SCADA investigate and fix HMI/RTU comms issue 7.5 Hours
Daily		  
21-May-20 10:00 21-May-20 17:00 ATCO TE 857S Kakwaridge replace faulty PT (emergency repair) 7 Hours
Continuous		  
21-May-20 10:15 21-May-20 17:45 ALTALINK Outage 17s50 (17s Benalto), 717L (17s Benalto - 262s Rocky Mountain House) repair broken conductor 7.5 Hours
Daily		  
21-May-20 13:00 21-May-20 17:00 ALTALINK TE 62s 995X (62s Brazeau) setting changes of sync check and testing 4 Hours
Daily		  
22-May-20 08:00 28-May-20 18:00 SUNCOR Outage Unmodeled Transmission Facility (Suncor) 29PL6-36 6.42 Days
Daily		  
22-May-20 08:00 22-May-20 12:00 ALTALINK Outage 612L (336s Fincastle - 368s Burdett) capacity increase project 4 Hours
Daily		  
22-May-20 08:00 22-May-20 12:00 ALTALINK TE 62s 201 (62s Brazeau) settings changes of sync check on 801L 4 Hours
Daily		  
22-May-20 16:00 01-Jun-20 13:00 ALTALINK Outage 336s 607 (336s Fincastle), 336s 610 (336s Fincastle) 610L/607L bypassed at 336s 9.88 Days
Continuous		  
23-May-20 08:00 23-May-20 12:00 ENMAX Outage 15.62L (ENMAX 15 - ENMAX 16), 16.61L (ENMAX 16 - ENMAX 27), 16.1TR (ENMAX 16) Substation washing & check reversing switch 4 Hours
Continuous		  
23-May-20 09:30 25-May-20 16:30 ALTALINK Outage 359s T2 (359s Esso West Pembina) commission tripping and status to new protection relays from 359s14 2.29 Days
Continuous		  
23-May-20 12:01 23-May-20 18:00 ENMAX Outage 16.60L (ENMAX 16 - ENMAX 34), 16.63L (ENMAX 16 - ENMAX 36), 16.2TR (ENMAX 16), 36.5TR (ENMAX 36) Substation washing & check reversing switch 5.98 Hours
Continuous		  
24-May-20 08:00 30-May-20 18:00 SUNCOR Outage 29EDD-56 72kV Line 29PL6-14 AND 29PP-41G BUSS BREAKERS.:
29EDD-5629PP-41G SYSTEM;PM 5y,
29EDD-56;652-4150 MAINT & TEST;PM 10y,
29EDD-56;652-4160 MAINT & TEST;PM 10y,
29EDD-56 Damage Stress Cone & Cable Sup		 6.42 Days
Continuous		  
24-May-20 08:00 24-May-20 18:00 ENMAX Outage 26.81L. 32.83L. 32.1TR. 32.2TR. 32PT138-Z31 Repair 32.1TR MD. Spring Substation Washing on 32.83L Structure. Repair hotspot SW84 10 Hours
Continuous		  
25-May-20 06:00 25-May-20 18:00 ENMAX TE ENMAX 36 RTU/SCADA RTU upgrade 12 Hours
Continuous		  
25-May-20 07:00 29-May-20 17:30 ATCO Outage 2075s 918 (2075s Newell) PRC-005 trip coil testing 4.44 Days
Continuous		  
25-May-20 07:00 05-Jun-20 15:00 ATCO Outage 2029s ACF12 (2029s Heathfield) perform PRC-005 tests on all devices associated with ACF12 and breaker 1219 11.33 Days
Continuous		  
25-May-20 07:00 29-May-20 17:30 ALTALINK TE 377S Hardisty adding line fault location for 702L 681L (Isolate @ 478s) 703L 769L 4.44 Days
Daily		  
25-May-20 07:00 29-May-20 17:30 ALTALINK TE 377s Hardisty RTU/SCADA adding line fault location for 702L, 681L, 703L, and 769L 4.44 Days
Daily		  
25-May-20 07:00 29-May-20 17:30 ALTALINK TE 478S Tucuman isolate 681L relays for fault locating addition @ 377s 4.44 Days
Daily		  
25-May-20 07:00 29-May-20 17:30 ATCO TE 2075s 918 (2075s Newell) PRC-005 - aux trip relay testing 4.44 Days
Continuous		  
25-May-20 07:00 29-May-20 17:30 ATCO IO HARDISTY (AL) AltaLink project to add fault location capabilities to the protection modules at 377s Hardisty 4.44 Days
Continuous		  
25-May-20 07:00 29-May-20 17:00 ALTALINK TE 263s Strachan RTU/SCADA download and test new HMI configuration 4.42 Days
Daily		  
25-May-20 07:00 25-May-20 17:00 EPCOR Outage 72RV4 (511s Victoria - Rossdale), Victoria V726 (Victoria), Victoria V727 (Victoria) doble 10 Hours
Continuous		  
25-May-20 08:00 25-May-20 12:00 ENMAX Outage ENMAX 65 B240-D131 (ENMAX 65) SF6 sample 4 Hours
Continuous		  
25-May-20 08:00 07-Jun-20 16:00 ATCO Outage 7L91 (715s Leming Lake - 826s Marguerite Lake) 240/144kV breaker fail protection and 826S Marguerite protection upgrade 13.33 Days
Continuous		  
25-May-20 08:00 25-May-20 17:00 ATCO RB 9L1035 (244s Bowmanton - 2075s Newell) ATCO:helicopter A-step inspection 9 Hours
Daily		  
25-May-20 08:00 25-May-20 17:00 ATCO RB 9L1087 (324s Cassils - 2075s Newell) ATCO:helicopter A-step inspection 9 Hours
Daily		  
25-May-20 08:00 25-May-20 17:00 ATCO RB 9L1088 (324s Cassils - 2075s Newell) ATCO :helicopter A-step inspection 9 Hours
Daily		  
25-May-20 08:00 25-May-20 17:00 ATCO, ALTALINK RB 923L (356s Milo - 2075s Newell) ATCO: helicopter A-step inspection 9 Hours
Daily		  
25-May-20 08:00 26-May-20 16:00 ENMAX Outage 24.1TR (ENMAX 24) 24.1TR XO ground cable corrective, check reversing switch 1.33 Days
Continuous		  
25-May-20 08:00 28-May-20 16:00 ENMAX Outage 23.3TR (ENMAX 23) power factor test, secondary cable tests, maintenance, gas relay testing, oil sampling MT, TC 3.33 Days
Continuous		  
25-May-20 08:00 28-May-20 16:00 ENMAX Outage 5.1TR (ENMAX 5) power factor test, secondary cable tests, maintenance, gas relay testing 3.33 Days
Continuous		  
25-May-20 08:00 28-May-20 16:00 ALTALINK TE AltaLink Radio Tower, Grassland I-282s ALPAC Load Trip Scheme 9900R Ellscott Radio MPLS - replace old 7750 MPLS node 3.33 Days
Daily		  
25-May-20 08:00 25-May-20 17:00 EPCOR Outage 987s T3 (987s Clover Bar) tap changer maintenance 9 Hours
Continuous		  
25-May-20 08:00 08-Jun-20 16:00 ATCO TE 826s 144kV bus (826s Margueritelake) protection upgrade on 7L91, 704CT going to the 87B1 protection will be blocked, test 704 trip and block close coming from 144kV Bus 1 lockout relay 14.33 Days
Continuous		  
25-May-20 08:00 08-Jun-20 16:00 ATCO TE 826S Marguerite Lake, 7L89 (721s La Corey - 826s Marguerite Lake) protection upgrade 14.33 Days
Continuous		  
25-May-20 08:30 26-May-20 16:30 ALTALINK TE 74S Janet standard relay maintenance 1.33 Days
Daily		  
25-May-20 09:00 28-May-20 16:00 ATCO RB 9L59 (801s Anderson - 972s Tinchebray) climbing inspection 3.29 Days
Continuous		  
25-May-20 09:00 25-May-20 16:00 ALTALINK TE 511s Crossing, AltaLink PMU maintenance on the following PMU's ACF1 ACF2 T11 7 Hours
Daily		  
25-May-20 09:00 28-May-20 17:00 ALTALINK TE 5s East Calgary RTU/SCADA updating configurations on the RTU for new breaker alarms and modified cap bank alarms 3.33 Days
Daily		  
25-May-20 09:00 26-May-20 16:30 ALTALINK TE 42S Sarcee PRC005 relay maintenance 31.5 Hours
Daily		  
25-May-20 09:00 28-May-20 16:00 ALTALINK TE 9433R Eagle Hill Radio MPLS - TPR/RTU 9433R Eagle Hill radio - upgrade MPLS node 3.29 Days
Daily		  
25-May-20 09:15 29-May-20 16:45 ALTALINK Outage 245s 3E (245s Seebe), 3L (245s Seebe - 3AL) 138kV CT replacement 4.31 Days
Continuous		  
25-May-20 09:30 28-May-20 16:30 ALTALINK TE 283S Violet Grove standard relay maintenance 3.29 Days
Daily		  
25-May-20 10:00 07-Jun-20 16:00 ATCO Outage 7L59 (789s Keg River - 7L59 tap) cross- arm change out 13.25 Days
Continuous		  
25-May-20 10:00 25-May-20 16:00 ATCO Outage 6L02 (765s Mannix Mine - 873s Marion Lake) replace crossarm 6 Hours
Continuous		  
25-May-20 10:15 28-May-20 17:45 ALTALINK Outage 77s T2 (77s Sagitawah) transformer maintenance 3.31 Days
Continuous		  
25-May-20 10:15 28-May-20 17:45 ATCO IO Sagitawa (AL) AltaLink is performing maintenance on 77sT2 3.31 Days
Continuous		  
25-May-20 10:30 28-May-20 17:30 ALTALINK Outage 370s T3 (370s North Lethbridge) maintenance, doble, conservator tank leak repair 3.29 Days
Continuous		  
25-May-20 12:00 29-May-20 14:00 ALTALINK, EPCOR Outage 909L (310p Sundance - 665s Dome) structure replacements 4.08 Days
Continuous		  
25-May-20 12:00 25-May-20 16:00 ENMAX Outage ENMAX 65 B240-D130 (ENMAX 65) SF6 sample 4 Hours
Continuous		  
25-May-20 12:00 29-May-20 14:00 EPCOR IO ALTALINK - 909LW - GOI @ 310p - E665s components/structure replacements 4.08 Days
Continuous		  
25-May-20 12:30 29-May-20 13:30 ALTALINK, EPCOR RB 908L (89s Ellerslie - 816s Petrolia) crews working on parallel 909L 4.04 Days
Daily		  
25-May-20 12:30 29-May-20 13:30 ALTALINK, EPCOR RB 1044L (805s Jasper - 816s Petrolia) crews working on parallel 909L 4.04 Days
Daily		  
25-May-20 12:30 29-May-20 13:30 ALTALINK, EPCOR RB 1045L (310p Sundance - 320p Keephills - 805s Jasper) crews working on parallel 909L 4.04 Days
Daily		  
25-May-20 12:30 29-May-20 13:30 EPCOR RB Altalink - 1044L Recloser Block @ e816s Petrolia - e805s Jasper Work on adjacent 909L (e310P -e665S) 4.04 Days
Continuous		  
25-May-20 12:30 29-May-20 13:30 EPCOR RB ALTALINK - 908LE RECLOSER BLOCK @ PETROLIA e816S Work on adjacent 909L (310P - e665S). 4.04 Days
Continuous		  
25-May-20 12:30 29-May-20 13:30 EPCOR RB Altalink - 1045L Recloser Block @ e805s Jasper Work on adjacent 909L (310P - e665s) 4.04 Days
Continuous		  
25-May-20 13:00 31-May-20 15:00 ATCO Outage 7L61 (780s Lubicon - 796s Nipisi) cross arm and insulator change out 6.08 Days
Continuous		  
25-May-20 13:00 29-May-20 17:00 ALTALINK Outage 638S Esso Judy Creek replace 25kV and 69kV T1 bushings, repair 4.17 Days
Continuous		  
25-May-20 13:00 29-May-20 17:00 ATCO RB 6L126 Altalink requires a reclose block advice on 6L126 @ A743s Sarah Lake 4.17 Days
Continuous		  
25-May-20 13:00 30-May-20 16:00 ATCO Outage 6L11 (742s Freeman Lake - 743s Sarah Lake) line inspection 5.13 Days
Continuous		  
25-May-20 13:00 03-Jun-20 13:30 ALTALINK Outage 336S Fincastle mobile install for fincastle fortis capacity increase project 9.02 Days
Continuous		  
26-May-20 07:00 26-May-20 17:00 ALTALINK TE 263s Strachan RTU/SCADA download and test new configuration 10 Hours
Daily		  
26-May-20 07:00 26-May-20 17:00 EPCOR Outage 72RV6 (511s Victoria - Rossdale), Victoria V723 (Victoria), Victoria V724 (Victoria) Doble 10 Hours
Continuous		  
26-May-20 07:00 28-May-20 19:00 ALTALINK TE 1012s Deer Hill RTU/SCADA update configuration for new alarms 2.5 Days
Daily		  
26-May-20 07:30 28-May-20 17:30 ALTALINK, ATCO RB 526L (268s Whitecourt - 236s Judy Creek), 6L126 (743s Sarah Lake - 515L tap) line clearance mitigation on structure #520A 2.42 Days
Daily		  
26-May-20 08:00 26-May-20 12:00 ENMAX Outage ENMAX 65 B240-D132 (ENMAX 65) SF6 Sample 4 Hours
Continuous		  
26-May-20 08:00 26-May-20 10:00 ENMAX, ALTALINK Outage 36.81L (44s Bearspaw - ENMAX 36), ENMAX 36 B138-36.81 (ENMAX 36) RTU upgrade to commission CAC/OAC circuits 2 Hours
Continuous		  
26-May-20 08:00 26-May-20 10:00 ALTALINK IO 36.81L ENMAX-Info 36 Sub RTU upgrade, commission CAC/OAC circuits 2 Hours
Daily		  
26-May-20 08:00 27-May-20 17:00 ALTALINK RB 757L (17s Benalto - 297s Rimbey), 758L (534s Eckville - 757L) P5 urgent repair on 757L leaning Poles- Structures 90, 91, 92 1.38 Days
Daily		  
26-May-20 08:15 29-May-20 14:45 ALTALINK Outage 760L (163s Amoco Empress - 394s Empress) urgent repair: upgrade failed "B" protection and "A" protection sync check 3.27 Days
Continuous		  
26-May-20 09:00 28-May-20 17:00 ALTALINK TE 336s Fincastle RTU/SCADA download new configurations and commissioning of new controls, alarms and status 2.33 Days
Continuous		  
26-May-20 09:30 26-May-20 17:30 ALTALINK Outage 202L (61s Lodgepole - 202AL), 61s 202N (61s Lodgepole) maintenance on breaker including 1st trip testing 8 Hours
Daily		  
26-May-20 09:30 26-May-20 16:30 ALTALINK Outage 336s 607 (336s Fincastle) PRC 5 maintain 138kV SF6 gas breaker-linked to Ref# 269066 7 Hours
Daily		  
26-May-20 10:00 26-May-20 12:00 ENMAX Outage 14.83L (ENMAX 14 - ENMAX 36), ENMAX 36 B138-14.83 (ENMAX 36) 36 Sub RTU upgrade, commission CAC/OAC circuits 2 Hours
Continuous		  
26-May-20 10:00 26-May-20 14:00 ALTALINK TE AltaLink Radio Tower, 228s T.M.P.L.Niton RTU/SCADA 9269R - radio maintenance 4 Hours
Daily		  
26-May-20 10:00 26-May-20 14:00 ALTALINK TE AltaLink Radio Tower, 395s North Holden RTU/SCADA 9404R - radio maintenance 4 Hours
Daily		  
26-May-20 10:30 26-May-20 15:30 ALTALINK Outage 551EL1 repair / replace broken fuse hook and change out fuse size 5 Hours
Daily		  
26-May-20 12:00 26-May-20 16:00 ENMAX Outage ENMAX 65 B240-D133 (ENMAX 65) SF6 sample 4 Hours
Continuous		  
26-May-20 12:00 26-May-20 14:00 ENMAX Outage 7.84L (ENMAX 7 - ENMAX 36) 36 Sub RTU upgrade, commission CAC/OAC circuits 2 Hours
Continuous		  
26-May-20 12:00 28-May-20 20:00 ALTALINK RB 995L (17s Benalto - 995AL), 995L (62s Brazeau - 995AL) prep-trailer, acquire measurements for future open point 'A' creation on 995L outside of 62s 2.33 Days
Daily		  
26-May-20 14:00 26-May-20 16:00 ENMAX Outage ENMAX 36 B138-36BT3 (ENMAX 36) 36 Sub RTU upgrade, commission CAC/OAC circuits 2 Hours
Continuous		  
26-May-20 16:00 26-May-20 18:00 ENMAX Outage 16.63L (ENMAX 16 - ENMAX 36), 36.5TR (ENMAX 36) 36 Sub RTU upgrade, commission CAC/OAC circuits 2 Hours
Continuous		  
27-May-20 00:00 28-May-20 06:00 ALTALINK Outage 250p 11 (250p Bighorn Plant) maintenance 30 Hours
Continuous		  
27-May-20 00:00 28-May-20 06:00 ALTALINK Outage 250p 22 (250p Bighorn Plant) maintenance 30 Hours
Continuous		  
27-May-20 07:00 27-May-20 17:00 EPCOR Outage 72CN10 (987s Clover Bar - Namao) doble 10 Hours
Continuous		  
27-May-20 07:30 28-May-20 06:00 ALTALINK Outage 263s Strachan 138kV Bus 1, 718L (250p Bighorn Plant - 263s Strachan), 870L (262s Rocky Mountain House - 263s Strachan), 263s T1 (263s Strachan) replace 263s1,138 kV motor operated disconnect switch 22.5 Hours
Continuous		  
27-May-20 08:00 27-May-20 16:00 ENMAX Outage ENMAX 65 B240-D134 (ENMAX 65) SF6 sample, counter repair near and center phases 8 Hours
Continuous		  
27-May-20 08:00 27-May-20 12:00 ENMAX Outage 36.1TR (ENMAX 36) 36 sub RTU upgrade, commission CAC/OAC circuits, open close open required on MD on return 4 Hours
Continuous		  
27-May-20 08:00 01-Jun-20 17:00 ATCO Outage 6L57 (727s Kinuso - 735s Swan River) line inspection 5.38 Days
Continuous		  
27-May-20 08:00 28-May-20 16:00 ENMAX Outage 11.4TR (ENMAX 11) change HV riser lugs and bushing caps, check reversing switch 1.33 Days
Continuous		  
27-May-20 08:00 28-May-20 17:45 ALTALINK Outage 694L (54s Fort Saskatchewan - 422s Westwood) install mid-span structure (19A) between STR 19 & 20 to mitigate line clearance violations 1.41 Days
Continuous		  
27-May-20 08:30 27-May-20 16:30 ALTALINK TE 384s Keystone RTU/SCADA standard relay maintenance 8 Hours
Daily		  
27-May-20 08:45 27-May-20 17:30 ALTALINK TE 310P Sundance RTU/SCADA relay configuration update 8.75 Hours
Daily		  
27-May-20 09:00 28-May-20 17:00 ALTALINK Outage 420s T1 (420s Broadmoor) maintenance and doble 1.33 Days
Continuous		  
27-May-20 09:00 27-May-20 17:00 ALTALINK TE 256s Harmattan RTU/SCADA update passwords on all required equipment and relays 8 Hours
Daily		  
27-May-20 09:00 27-May-20 16:30 ALTALINK Outage 336s 612 (336s Fincastle) PRC 5 maintain 138kV SF6 gas breaker 7.5 Hours
Daily		  
27-May-20 10:00 28-May-20 17:00 ALTALINK IO 500S Flatbush install NVR and cameras in control building 31 Hours
Daily		  
27-May-20 12:00 27-May-20 14:00 ENMAX Outage 36.2TR (ENMAX 36) 36 sub RTU uugrade, commission CAC/OAC circuits, open close open required on MD on return 2 Hours
Continuous		  
28-May-20 07:00 28-May-20 17:00 EPCOR Outage 72VN21 (511s Victoria - Namao) Doble 10 Hours
Continuous		  
28-May-20 07:00 02-Jun-20 19:00 ALTALINK TE 659s Pegasus Lake RTU/SCADA update configuration for new alarms 5.5 Days
Daily		  
28-May-20 07:30 28-May-20 17:00 ALTALINK Outage 233s T2 (233s Beamer) Replace oil pump 9.5 Hours
Daily		  
28-May-20 08:00 29-May-20 17:00 ATCO TE ATCO Radio Tower, 9L27 (755s Cordel - 863s Paintearth) TPS channel A and B circuits move,
relocate A and B tele-protection to new primary and secondary paths		 1.38 Days
Continuous		  
28-May-20 08:00 28-May-20 12:00 ENMAX Outage 54.81L (ENMAX 54 - ENMAX 65) SF6 sample 54B138-54.81 4 Hours
Continuous		  
28-May-20 08:00 28-May-20 16:00 ENMAX TE ENMAX 2 Reconfigure Cap bank breaker and switches 8 Hours
Continuous		  
28-May-20 08:00 28-May-20 16:00 ENMAX TE ENMAX 2 B138-D95 (ENMAX 2), ENMAX 2 B138-D96 (ENMAX 2) Reconfigure Cap bank breaker and switches 8 Hours
Continuous		  
28-May-20 08:00 28-May-20 20:00 ALTALINK Outage 995L (62s Brazeau - 995AL) Required for creating Open Point 'A' 12 Hours
Continuous		  
28-May-20 08:00 29-May-20 16:00 ALTALINK RB 408L (51s Wainwright - 252s Jarrow) straighten leaning poles 408L Str 57, 83, & 103 as warranty work 1.33 Days
Continuous		  
28-May-20 08:30 28-May-20 17:00 ATCO Outage 7L130 (705s Kitscoty - 710s Vermilion) maintenance 8.5 Hours
Continuous		  
28-May-20 08:30 28-May-20 17:00 ALTALINK IO 7L130 (A705s - A710s) ATCO Info required to relocate pole for new service road 8.5 Hours
Daily		  
28-May-20 08:30 28-May-20 16:30 ALTALINK TE 131S Moon Lake standard relay maintenance 8 Hours
Daily		  
28-May-20 09:00 28-May-20 17:00 Medicine Hat Outage MH69s1 MH69_38 (MH69s1 Power P Switchyard) replace breaker 8 Hours
Continuous		  
28-May-20 09:00 05-Jun-20 16:00 ENMAX Outage 38.2TR (ENMAX 38) secondary cable replacement, phasing required across MD on return 8.29 Days
Continuous		  
28-May-20 09:00 28-May-20 11:00 ATCO Outage 6L03 (757s Battle River - 6L17 tap) GOI to install some bird perch deterrents in a trouble area where we have had a few bird contacts. 2 Hours
Continuous		  
28-May-20 09:30 28-May-20 16:30 ALTALINK Outage 498s C1 (498s Tilley) 138kV breaker maintenance 7 Hours
Daily		  
28-May-20 12:00 28-May-20 16:00 ENMAX Outage 40.81L (ENMAX 40 - ENMAX 41) SF6 sample 41B138-40.81 4 Hours
Continuous		  
29-May-20 07:00 03-Jun-20 17:00 EPCOR Outage 1055L (629s Argyll Transfer Station - 816s Petrolia) line maintenance 5.42 Days
Continuous		  
29-May-20 07:00 03-Jun-20 17:00 ALTALINK IO 1055L (E629s-E816s)Epcor - Info line maintenance 5.42 Days
Continuous		  
29-May-20 07:00 03-Jun-20 17:00 ALTALINK, EPCOR RB 1056L (89s Ellerslie - 629s Argyll Transfer Station) line maintenance 5.42 Days
Continuous		  
29-May-20 07:00 31-May-20 18:00 ALTALINK Outage 995L (62s Brazeau - 995AL) relocate structures 1 - 5 2.46 Days
Continuous		  
29-May-20 08:00 05-Jun-20 18:00 SUNCOR Outage Unmodeled Transmission Facility (Suncor) 29PS-266 maintenance 7.42 Days
Daily		  
29-May-20 08:00 29-May-20 16:00 ENMAX Outage 21.61L (ENMAX 21 - ENMAX 34) power factor test HV breaker 8 Hours
Continuous		  
29-May-20 12:00 29-May-20 17:00 ALTALINK Outage 202L (61s Lodgepole - 62s Brazeau) remove conductor from 995L1 and 995L2 over top of span 202L1 and 202L2 5 Hours
Daily		  

Prepared On:   2020-05-20   4:15:30 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.

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