Alberta Electric System Operator
Long Range Significant Transmission Outages for the period of 24 months starting 2017-03-04

The table below contains the significant transmission outages submitted as tentative to the AESO.
These Outages have not yet necessarily been approved, but are listed for awareness and coordination purposes.
An Outage has been considered significant for this table if it meets any one (1) or more of the following criteria:
  1. it affects a transmission facility operating at two hundred and forty (240) kV or greater;
  2. it affects an intertie;
  3. it affects an element connecting facilities owned by two (2) or more different legal owners of transmission facilities;
  4. it affects an element that connects a generating unit or an aggregated generating facility to the interconnected electric system;
  5. it requires the ISO to issue a dispatch or directive for generation in order to facilitate the planned outage;
  6. it affects a cutplane limit;
  7. it limits or reduces the operability of a synchronous condenser, static VAr compensator, static compensator or other similar dynamic device; or
  8. it affects high voltage direct current facilities.
Note: Where a transmission outage requires generation curtailments, the adjustments to generation will typically happen in the hours before the scheduled transmission outage and in the hour after the element is returned to service.

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Owner From To Duration Element Scheduled Activity Affected Intertie
ATCO 10-Jan-17 17:00 30-Apr-17 16:00 109.92 Days
Continuous
732s 902T (732s Mitsue) forced outage. transformer tap changer  
ALTALINK 03-Feb-17 07:30 04-Mar-17 17:30 29.42 Days
Continuous
1107L (ENMAX 65 - 237s Foothills) damper replacements  
ENMAX, ALTALINK 06-Feb-17 08:00 11-Mar-17 16:00 33.33 Days
Continuous
7.82L (42s Sarcee - ENMAX 7) relocated a section of 7.82 L around the new planned intersection at 69Str SW and the SWCRR(HW8)  
ALTALINK 21-Feb-17 07:30 06-Mar-17 17:30 13.42 Days
Continuous
294s 801N (294s Brazeau Outlet Works),62s 201 (62s Brazeau),801L (62s Brazeau - 294s Brazeau Outlet Works) replace structures, replace insulators, repair guy wires, general line maintenance  
ALTALINK 26-Feb-17 14:00 03-Apr-17 17:00 36.08 Days
Continuous
310p 6G (310p Sundance) maintenance  
ALTALINK 27-Feb-17 05:30 21-Mar-17 17:30 22.46 Days
Continuous
1053L (324s - 132s) - GOI Damper Replacements, QA/QC checks  
ALTALINK 27-Feb-17 07:30 11-Mar-17 17:30 12.42 Days
Continuous
966L (650s - A932s) - GOI Damper Replacements, QA/QC checks  
ALTALINK 27-Feb-17 09:30 02-Apr-17 15:30 34.21 Days
Continuous
310p2452 & 310p2352 GOI Replacement of 310p2352 and 3310p2452 breaker control modules, maintenance.  
ALTALINK 03-Mar-17 06:30 08-Mar-17 17:30 5.46 Days
Continuous
675L (244s Bowmanton - 41s Medicine Hat) replace saddles  
ALTALINK 04-Mar-17 07:30 12-Apr-17 17:30 39.38 Days
Continuous
1038L (138s - 266s - 237s) - GOI Damper Replacement, QA/QC checks  
ATCO 04-Mar-17 11:00 04-Mar-17 14:00 3 Hours
Continuous
7L749 Line mitigation, AML 899s Edgerton will be radial fed from 749L, 880s Briker will be radial fed from 716s Lloyd  
EPCOR 06-Mar-17 07:00 10-Mar-17 17:00 4.42 Days
Continuous
L2401 Breaker Outage and L2401 BF Protection Outage @ Lambton S/S Performing Breaker op-checks as part of relay maintenance and repairs to L2401 BF relay.  
ALTALINK 06-Mar-17 07:15 09-Mar-17 17:45 3.44 Days
Continuous
13s1652 and 13s1752 (9L960) - GOI Replacing CT's and wiring/control changes to A & B protection  
ALTALINK 06-Mar-17 09:00 16-Mar-17 17:00 10.29 Days
Continuous
17s 240kV NBus 1 & 922L - Advice Replace Insulators On the 240kV North Bus, Replace 17s700 CVT, Replace 17s922N & 17s35 Switches.(Like for Like)  
ALTALINK 06-Mar-17 11:00 09-Mar-17 17:00 3.25 Days
Continuous
1202L (89s - 320p) - GOI SCADA Equipment Upgrade  
ALTALINK 07-Mar-17 07:15 08-Mar-17 15:00 31.75 Hours
Continuous
83s T1 & 138kV West Bus GOI (610L,172L Replace 83s3 PT's  
ATCO 07-Mar-17 08:00 13-Mar-17 16:00 6.29 Days
Continuous
7L64 MITIGATION WORK  
ATCO 07-Mar-17 09:00 07-Mar-17 16:00 7 Hours
Continuous
804S IRAS (Wheatland WAGF) protection  
ATCO 07-Mar-17 09:00 08-Mar-17 12:00 27 Hours
Daily
825S 901 During 9L960 RFL relay replacement troubleshoot 901 Ph C pole discrepancy issue, permit will be released nightly so 240kV bus loop can be restored if needed.  
ATCO 08-Mar-17 08:00 08-Mar-17 16:00 8 Hours
Continuous
BearTrap_S-Telecom,700S 7L24 Protection Relay,Bonnyville_S-Telecom Teleprotection cct Bonneville to Beartrap , TPR-EE-127 on line 7L24 to be moved over to new telecom multiplex. This will require a short outage (<10 minutes) to the teleprotection cct for cable connections and testing.  
ALTALINK 08-Mar-17 09:00 08-Mar-17 10:00 60 Mins
Daily
310p352 Advice Trip test from 310p2452 breaker fail protection.  
ALTALINK 08-Mar-17 09:00 08-Mar-17 17:30 8.5 Hours
Daily
170L (799s - 632s) - GOI Emergency repair; str33 crossarm replacement, str68 OHSW repair AB-BC
ALTALINK 08-Mar-17 10:00 08-Mar-17 11:00 60 Mins
Daily
310p652 Advice Trip test from 310p2452 breaker fail protection.  
ALTALINK 08-Mar-17 11:00 08-Mar-17 12:00 60 Mins
Daily
310p952 Advice Trip test from 310p2452 breaker fail protection.  
ALTALINK 08-Mar-17 11:00 08-Mar-17 15:00 4 Hours
Daily
250p11 (250p Bighorn) maintenance  
ALTALINK 08-Mar-17 12:00 08-Mar-17 13:00 60 Mins
Daily
310p1252 Advice Trip test from 310p2452 breaker fail protection.  
ALTALINK 08-Mar-17 13:00 08-Mar-17 14:00 60 Mins
Daily
310p1552 Advice Trip test from 310p2452 breaker fail protection.  
ALTALINK 08-Mar-17 14:00 08-Mar-17 15:00 60 Mins
Daily
310p1852 Advice Trip test from 310p2452 breaker fail protection.  
ALTALINK 08-Mar-17 15:00 08-Mar-17 16:00 60 Mins
Daily
310p2752 Advice Trip test from 310p2452 breaker fail protection.  
EPCOR 09-Mar-17 07:00 17-Mar-17 17:00 8.38 Days
Continuous
Tx1 outage and P2401/P2402 BF Protection Outages @ Petrolia S/S Performing Breaker op-checks as part of relay maintenance and repairs to P2401 BF and P2402 BFrelay.  
ATCO 09-Mar-17 08:00 09-Mar-17 16:00 8 Hours
Continuous
Bonnyville_S-Telecom,Bourque_S-Telecom 7L146A and B TPR  
ATCO 09-Mar-17 08:00 09-Mar-17 16:00 8 Hours
Continuous
Irish Creek_S-Telecom,Bonnyville_S-Telecom 7L53 TPR  
ALTALINK 09-Mar-17 09:00 09-Mar-17 13:00 4 Hours
Daily
250p22 (250p Bighorn) maintenance  
ALTALINK 13-Mar-17 07:00 13-Mar-17 07:15 15 Mins
Daily
1059L (E803s-E52s-38s) EPCOR - De-energi EPCOR requires 1059L de-energized to facilitate opening E52sEDS1  
ATCO 13-Mar-17 07:00 17-Mar-17 17:00 4.42 Days
Continuous
9L913 Upgrade protection at both ends.  
EPCOR 13-Mar-17 07:00 17-Mar-17 17:00 4.42 Days
Continuous
L2402 Breaker Outage and L2402 BF Protection Outage @ Lambton S/S Performing Breaker op-checks as part of relay maintenance and repairs to L2402 BF relay.  
EPCOR 13-Mar-17 07:00 17-Mar-17 17:00 4.42 Days
Continuous
Tx1 outage @ East Industrial S/S Performing Relay Op-Checks.  
ATCO 13-Mar-17 08:00 15-Mar-17 16:00 2.33 Days
Continuous
Kettle River_S-Telecom 9L45 A & B TPR  
ALTALINK 13-Mar-17 11:00 16-Mar-17 17:00 3.25 Days
Continuous
1209L (89s - 330p) - GOI SCADA Equipment Upgrade  
ENMAX 14-Mar-17 08:00 14-Mar-17 12:00 4 Hours
Continuous
28.80L. 28.2TR Spring Substation Washing  
ATCO 14-Mar-17 13:30 14-Mar-17 14:30 60 Mins
Continuous
Hairy Hill_T-Telecom 7L139 A & B TPR  
ATCO 14-Mar-17 16:00 14-Mar-17 17:00 60 Mins
Continuous
Norberg_S-Telecom Norberg_S SAR-7705 Requires a Firmware upgrade to Version 6,
Norberg U/V RAS to be turned off for the duration of the work as per ATCO Risk Assessment
Upgrade will take around 45 minutes to complete with only a 5 minute Service outage time.
Circuits affected
TPRFF131 - 7L139 A Protection
TPRFF130 - 7L139 B Protection
VPRN 5 - DNP/IP SCADA

Norberg Sub
 
ATCO 15-Mar-17 08:00 15-Mar-17 16:00 8 Hours
Continuous
Dawes_S-Telecom 9L89A Dawes to McMillan
TPR FF 135 9L89B Dawes to McMillan
TPR FF 141 9L07A Dawes to Dover
TPR FF 142 9L07B Dawes to Dover
TPR FF 145 7L38A Algar to Horse River VIA Dawes
TPR FF 146 7L38B Algar to Horse River VIA Dawes
TPR FF 149 7L194A Dawes to Willow Lake
TPR FF 150 7L194B Dawes to Willow Lake
VPRN 5 DNP/IP SCADA
 
ATCO 15-Mar-17 08:30 15-Mar-17 09:30 60 Mins
Continuous
StPaul_S-Telecom St.Paul_S SAR-7705 Firmware upgrade to Version 6
Norberg U/V RAS to be turned off for the duration of the work as per ATCO Risk Assessment
Upgrade will take around 45 minutes to complete with only a 5 minute Service outage time.
TPRFF131 - 7L139 A Protection
TPRFF130 - 7L139 B Protection
VPRN 5 - DNP/IP SCADA
St Paul Sub
 
ALTALINK 15-Mar-17 08:30 20-Mar-17 17:30 5.38 Days
Continuous
310p696 Advice Transformer maintenance  
ATCO 15-Mar-17 11:00 15-Mar-17 12:00 60 Mins
Continuous
Whitby Lake_S-Telecom Whitby Lake substation SAR-7705 requires a Firmware upgrade to Version 6
Upgrade will take around 45 minutes to complete with only a 5 minute Service outage time.
Affected Circuits:
TPRFF131 - 7L139 A Protection
VPRN 5 - DNP/IP SCADA

Whitby Lake Sub
 
ATCO 15-Mar-17 14:00 15-Mar-17 15:00 60 Mins
Continuous
Bonnyville_S-Telecom BONNYVILLE SUBSTATION - SAR-7705 UPGRADE TO FIRMWARE VERSION 6
Upgrade will take around 45 minutes to complete with only a 5 minute Service outage time.
Circuits affected:
TPRFF152 - 7L89 Protection (BFTT)
VPRN 5 - DNP/IP SCADA

Bonnyville Sub
 
ATCO 15-Mar-17 16:30 15-Mar-17 17:30 60 Mins
Continuous
BearTrap_S-Telecom WHITBY LAKE SUBSTATION - SAR-7705 UPGRADE TO FIRMWARE VERSION 6
Upgrade will take around 45 minutes to complete with only a 5 minute Service outage time.
Circuits Affected:
TPRFF126 - 7L24 Protection (BFTT)
TPRFF127 - 7L24 Protection
VPRN 5 - DNP/IP SCADA'

Bear Trap Sub
 
ALTALINK 15-Mar-17 23:00 16-Mar-17 03:00 4 Hours
Daily
62s11 (62s Brazeau) maintenance  
ALTALINK 16-Mar-17 03:01 16-Mar-17 07:00 3.98 Hours
Daily
62s12 (62s Brazeau) maintenance  
ATCO 16-Mar-17 10:00 16-Mar-17 11:00 60 Mins
Continuous
Marguerite Lake_S-Telecom MARGUERITE LAKE SUBSTATION - SAR-7705 UPGRADE TO FIRMWARE VERSION 6
Upgrade will take around 45 minutes to complete with only a 5-minute Service outage time.
The circuits will be affected:
TPREE112 - 9L36 A Protection
TPREE114 - 9L37 A Protection
TPREE108 -7L91 A Protection
TPREE109 -7L91 B Protection
TPRFF151 - 7L89A Protection
TPRFF152 - 7L89B Protection
VPRN 5 - DNP/IP SCADA

Lacorey Sub

Bear Trap Sub
 
ATCO 16-Mar-17 12:00 16-Mar-17 13:00 60 Mins
Continuous
LaCorey_S-Telecom LA COREY SUBSTATION - SAR-7705 UPGRADE TO FIRMWARE VERSION 6
Upgrade will take around 45 minutes to complete with only a 5-minute Service outage time.
The circuits will be affected:
TPRFF151 - 7L89 Protection (BFTT)
TPRFF152 - 7L89 Protection
VPRN 5 - DNP/IP SCADA

La corey Sub
 
ATCO 16-Mar-17 15:00 16-Mar-17 16:00 60 Mins
Continuous
GrandeCentre_S-Telecom GRAND CENTRE SUBSTATION - SAR-7705 UPGRADE TO FIRMWARE VERSION 6
Upgrade will take around 45 minutes to complete with only a 5-minute Service outage time.
The circuits will be affected:
TPRFF126 - 7L24 Protection
SUPEE046 - Grande Centre Sub SCADA
 
ALTALINK 17-Mar-17 09:00 19-Mar-17 16:30 2.31 Days
Continuous
1201L (520s Bennett - BCH Cranbrook),520s T1 (520s Bennett) swap out transformers back to normal T1-4 to T1-3 AB-BC
MONTANA 17-Mar-17 09:00 19-Mar-17 16:30 2.31 Days
Continuous
MATL (120s Picture Butte - Montana) align with 1201L outage AB-MATL
ALTALINK 17-Mar-17 16:45 17-Mar-17 17:00 15 Mins
Daily
1059L (E803s-E52s-38s) EPCOR - De-energi EPCOR requires 1059L de-energized to facilitate closing E52sEDS1  
ENMAX 18-Mar-17 08:00 18-Mar-17 10:30 2.5 Hours
Continuous
162B240-RB134 SF6 Gas RE - Sample  
ENMAX 18-Mar-17 10:30 18-Mar-17 13:30 3 Hours
Continuous
162B240-RB135 SF6 Gas Sample  
ENMAX 18-Mar-17 13:30 18-Mar-17 16:00 2.5 Hours
Continuous
162B240-RB136 SF6 Gas Sample  
ALTALINK 20-Mar-17 07:00 20-Mar-17 07:15 15 Mins
Daily
908L (89s-E52s-38s) EPCOR - De-energize EPCOR requires 908L de-energized to facilitate opening E52sEDS2  
EPCOR 20-Mar-17 07:00 24-Mar-17 17:00 4.42 Days
Continuous
L2403 Breaker Outage and L2403 BF Protection Outage @ Lambton S/S Performing Breaker op-checks as part of relay maintenance and repairs to L2403 BF relay.  
EPCOR 20-Mar-17 07:00 25-Mar-17 17:00 5.42 Days
Continuous
Tx3 outage @ JasperS/S Performing Breaker op-checks as part of relay maintenance.  
EPCOR 20-Mar-17 07:00 25-Mar-17 17:00 5.42 Days
Continuous
Tx2 outage @ East Industrial S/S Performing Relay Op-Checks. Cutover of new ION meter.  
ALTALINK 20-Mar-17 08:00 23-Mar-17 17:00 3.38 Days
Continuous
310p B Bus & 973L (310p-39s) GOI Insulator replacement and switch maintenance  
ENMAX 20-Mar-17 08:00 31-Mar-17 16:00 11.33 Days
Continuous
37.82L. 37s & Janet 138KV Bus Differential Protection Line Protection Upgrade  
BCH 20-Mar-17 09:00 24-Mar-17 17:00 4.33 Days
Continuous
5L96 (Selkirk - Vaseux Lake) replace marker balls, shot insulators and damaged conductor AB-BC
ALTALINK 20-Mar-17 09:30 21-Mar-17 17:30 1.33 Days
Continuous
202L (61s-202L335) - GOI Line maintenance  
ATCO 20-Mar-17 10:15 20-Mar-17 11:15 60 Mins
Continuous
Strome_T-Telecom STROME TOWER - SAR-7705 UPGRADE TO FIRMWARE VERSION 6
Upgrade will take around 45 minutes to complete with only a 5-minute Service outage time.
The circuits will be affected:
SUPEE090 - Heisler SCADA
TPRET071 - 7L702 B
TPRET070 - 7L702 A
TPRET035 - 7L224 A
TPRET036 - 7L224 B
 
ALTALINK 20-Mar-17 11:00 23-Mar-17 17:00 3.25 Days
Continuous
1212L (89s - 12s) - GOI SCADA Equipment Upgrade  
ATCO 20-Mar-17 11:30 20-Mar-17 12:30 60 Mins
Continuous
Heatburg_S-Telecom HEATBURG SUBSTATION - SAR-7705 UPGRADE TO FIRMWARE VERSION 6
5-minute Service outage time to the following ccts;
SUPEP064 - Heatburg SCADA
TPRET031 - 7L159 A
TPRET032 - 7L159 B
TPRET072 - 7L159 A
TPRET074 - 7L159 B
 
ATCO 20-Mar-17 14:15 20-Mar-17 15:15 60 Mins
Continuous
Elnora_T-Telecom ELNORA TOWER - SAR-7705 UPGRADE TO FIRMWARE VERSION 6
5-minute Service outage time to the following ccts;.
SUPEP042 - Ghostpine SCADA
SUPEP058 - Three Hills SCADA
SUPEP064 - Heatburg SCADA
TPRET031 - 7L159 A
TPRET032 - 7L159 B
TPRET072 - 7L159 A
TPRET074 - 7L159 B
 
ATCO 20-Mar-17 16:00 20-Mar-17 17:00 60 Mins
Continuous
Chain Lakes_T-Telecom CHAIN LAKES TOWER - SAR-7705 UPGRADE TO FIRMWARE VERSION 6
5-minute Service outage time to the following ccts;.

RASEE012 - 9L20 RAS A Cordel/Newell, redundant CHB will remain in service
RASEE013 - 9L20 RAS A Nevis/Newell, redundant CHB will remain in service
RASEE014 - 9L912 RAS A Nevis/Newell, redundant CHB will remain in service
TPREE094 - 9L59 A
TPREE095 - 9L59 B
 
ALTALINK 21-Mar-17 07:30 21-Mar-17 17:30 10 Hours
Daily
37s T6 (Tx18309) GOI Replace Slack Span Insulators on Secondary Bus between T6 and 37s4  
ALTALINK 21-Mar-17 07:30 09-Apr-17 18:30 19.46 Days
Continuous
172L (370s - L181s) - GOI Line Rebuild  
ATCO 21-Mar-17 08:00 21-Mar-17 16:00 8 Hours
Continuous
Birchwood-S-Telecom Birchwood Sub TOWER - SAR-7705 UPGRADE TO FIRMWARE VERSION 6
5-minute Service outage time to the following ccts;.

TPRNF005 - 9L57 A
TPRNF006 - 9L57 B
TPRFF165 - 9L47 A
TPRFF166 - 9L47 B
"VPRN 5 - DNP/IP SCADA
Yeo Sub
Birchwood Creek Sub
Birchwood Creek Sub IPP"
"VPRN 2 - Telecom
Yeo Sub
Birchwood Creek Sub"
"VPRN 4 - Electric/Metering
Yeo Sub
Birchwood Creek Sub"
"VPLS 500 - Corporate
Yeo Sub
Birchwood Creek Sub"
 
ATCO 21-Mar-17 08:00 23-Mar-17 16:00 2.33 Days
Continuous
7L27 replace rotten crossarms  
ALTALINK 21-Mar-17 08:00 23-Mar-17 17:00 2.38 Days
Continuous
17s34 (906L-42s) - GOI Replace 17s34 Airbreak (Like for Like)  
ATCO 21-Mar-17 09:00 21-Mar-17 10:00 60 Mins
Continuous
Anderson_T-Telecom ANDERSON TOWER - SAR-7705 UPGRADE TO FIRMWARE VERSION 6
5-minute Service outage time to;

RASEE012 - 9L20 RAS A Cordel/Newell
RASEE013 - 9L20 RAS A Nevis/Newell
RASEE014 - 9L912 RAS A Nevis/Newell
TPREE094 - 9L59 A
TPREE095 - 9L59 B
TPREE096 - 7L128 A
TPREE063 - 7L128 B
TPREE105 - 7L85 Breaker Fail
RASEE023 - Wintering Hills/Anderson RAS
RASEE024 - Nevis/Wheatland RAS
SUPEE049 - Michichi SCADA
SUPEE051 - Bullpound PLC
IPPEE005 - Wheatland IPP SCADA
SUPEE085 - Wintering Hills SCADA
VPRN 5 - DNP/IP SCADA

Rowley
 
ATCO 21-Mar-17 10:30 21-Mar-17 11:30 60 Mins
Continuous
Fleet _T-Telecom FLEET TOWER - SAR-7705 UPGRADE TO FIRMWARE VERSION 6
5-minute Service outage time to;

RASEE012 - 9L20 RAS A Cordel/Newell
RASEE013 - 9L20 RAS A Nevis/Newell
RASEE014 - 9L912 RAS A Nevis/Newell
SUPEE047 - Ribstone SCADA
TPREE094 - 9L59 A
TPREE095 - 9L59 B
 
ENMAX 21-Mar-17 12:00 21-Mar-17 16:00 4 Hours
Continuous
23.80L. 23.4TR Spring Substation Washing  
ATCO 21-Mar-17 13:30 21-Mar-17 14:30 60 Mins
Continuous
Monitor_S_Telecom MONITOR SUBSTATION- SAR-7705 UPGRADE TO FIRMWARE VERSION 6
5-minute Service outage time for;

SUPEE048 - Monitor SCADA
TPRET035 - 7L224 A
TPRET036 - 7L224 B
TPREE054 / 7L110 DTT CH C
 
ATCO 21-Mar-17 16:30 21-Mar-17 17:30 60 Mins
Continuous
Oyen_S-Telecom OYEN SUBSTATION- SAR-7705 UPGRADE TO FIRMWARE VERSION 6
5-minute Service outage time to;

TPRET028 - 7L760 A Protection
TPRET029 - 7L760 B Protection
TPREE057 - 7L760 DTT CH C
SUPEE003 - Oyen SCADA
 
ATCO 22-Mar-17 10:30 22-Mar-17 11:30 60 Mins
Continuous
Empress_S_Telecom EMPRESS SUBSTATION (ALTA LINK) - SAR-7705 UPGRADE TO FIRMWARE VERSION 6
Upgrade will take around 45 minutes to complete with only a 5-minute Service outage time.
The circuits will be affected:
SUPEE055 - McNEILL SCADA
TPRET030 - 7L830
TPRET028 - 7L760 A Protection
TPRET029 - 7L760 B Protection
 
ATCO 22-Mar-17 14:30 22-Mar-17 15:30 60 Mins
Continuous
McNeill_S-Telecom McNEILL SUBSTATION - SAR-7705 UPGRADE TO FIRMWARE VERSION 6
Upgrade will take around 45 minutes to complete with only a 5-minute Service outage time.
The circuits will be affected:
SUPEE055 - McNEILL SCADA
TPRET030 - 7L830
 
ATCO 23-Mar-17 08:00 23-Mar-17 16:00 8 Hours
Continuous
WillowLake_S-Telecom SAR OS Upgrade.

CCTS
TPRFF138 - 7L36 A Protection
TPRFF139 - 7L36 B Protection
TPRFF149 - 7L194 A Protection
TPRFF150 - 7L150 A Protection
"VPRN 5 - DNP/IP SCADA
Willow Lake Sub
Willow Lake IPP"
"VPRN 2 - Telecom
Willow Lake Sub"
"VPRN 4 - Electric/Metering
Willow Lake Sub"
"VPLS 500 - Corporate
Willow Lake Sub"
 
ATCO 23-Mar-17 08:00 23-Mar-17 16:00 8 Hours
Continuous
Algar_S-Telecom SAR OS Upgrade.

CCTS
TPRFF145 - 7L38 A Protection
TPRFF146 - 7L38 B Protection
"VPRN 5 - DNP/IP SCADA
Algar Sub"
"VPRN 2 - Telecom
Algar Sub"
"VPRN 4 - Electric/Metering
Algar Sub"
"VPLS 500 - Corporate
Algar Lake Sub"
 
ALTALINK 23-Mar-17 08:00 23-Mar-17 17:00 9 Hours
Daily
244s T1 & T2 De-energized Investigate paralleling issues for T1 and T2. Out of step relay operates when both transformers are on tap 1 and shouldn't.  
ATCO 24-Mar-17 08:00 26-Mar-17 17:00 2.38 Days
Continuous
7L75 LINE MITIGATION  
ALTALINK 25-Mar-17 16:45 25-Mar-17 17:00 15 Mins
Daily
908L (89s-E52s-38s) EPCOR - De-energize EPCOR requires 908L de-energized to facilitate closing E52sEDS2  
EPCOR 27-Mar-17 07:00 31-Mar-17 17:00 4.42 Days
Continuous
Tx4 outage @ JasperS/S Performing Breaker op-checks as part of relay maintenance.  
EPCOR 27-Mar-17 07:00 04-Apr-17 17:00 8.42 Days
Continuous
Tx2 outage and P2404/P2405 BF Protection Outages @ Petrolia S/S Performing Breaker op-checks as part of relay maintenance and repairs to P2404 BF and P2405 BFrelay.  
ALTALINK 27-Mar-17 08:00 07-Apr-17 17:30 11.4 Days
Continuous
86s T1 GOI Replace 240 kV and 138 kV bushings. Misc TX maintenance.  
ALTALINK 27-Mar-17 09:00 27-Mar-17 10:00 60 Mins
Daily
310p2152 Advice Trip test from 310p2452 breaker fail protection.  
ALTALINK 27-Mar-17 11:00 30-Mar-17 17:00 3.25 Days
Continuous
1206L (89s - 12s) - GOI SCADA Equipment Upgrade  
ALTALINK 28-Mar-17 07:30 29-Mar-17 17:30 1.42 Days
Continuous
202L (62s-61s) - GOI Line maintenance  
ALTALINK 28-Mar-17 07:30 31-Mar-17 17:30 3.42 Days
Continuous
916L (42s - 5s) - GOI Replace Steel Members  
ALTALINK 28-Mar-17 07:30 03-Apr-17 17:30 6.42 Days
Continuous
1064L (74s - 102s) - GOI Damper Replacements  
ATCO 28-Mar-17 08:00 28-Mar-17 16:00 8 Hours
Continuous
Stoney Mtn_T-Telecom SAR OS Upgrade & TPR cuicuits  
ATCO 28-Mar-17 08:30 30-Mar-17 16:00 2.31 Days
Continuous
7L64 replace 4 structures for line mitigation  
EPCOR 29-Mar-17 07:00 29-Mar-17 17:00 10 Hours
Continuous
TX1 Bellamy Repair  
ENMAX 01-Apr-17 08:00 01-Apr-17 16:00 8 Hours
Continuous
932L Doble PT 932L  
ALTALINK 01-Apr-17 08:00 02-Apr-17 17:30 1.4 Days
Continuous
86s T1 & 240 kV Bus GOI Breaker maintenance 86s1752, switch repair - 86s12A, switch maintenance.  
ALTALINK 02-Apr-17 17:01 15-Apr-17 17:00 13 Days
Continuous
916L (42s-5s) GOI [SWCRR] SWCRR: Foundation work for future U/G Riser structures  
ALTALINK 02-Apr-17 17:01 15-Apr-17 17:00 13 Days
Continuous
693L (42s-C10s) GOI [SWCRR] SWCRR Foundation work for future U/G Riser structures  
ALTALINK 03-Apr-17 07:00 06-Apr-17 17:00 3.42 Days
Continuous
89s T1(TX18724,TX18725,TX18726) - GOI SCADA Equipment Upgrade  
EPCOR 03-Apr-17 07:00 07-Apr-17 17:00 4.42 Days
Continuous
Tx1 outage @ JasperS/S Performing Breaker op-checks as part of relay maintenance.  
EPCOR 03-Apr-17 07:00 07-Apr-17 17:00 4.42 Days
Continuous
L2404 Breaker Outage and L2404 BF Protection Outage @ Lambton S/S Performing Breaker op-checks as part of relay maintenance and repairs to L2404 BF relay.  
ATCO 03-Apr-17 10:00 03-Apr-17 14:00 4 Hours
Continuous
Bonnyville_S-Telecom,Lindbergh_S-Telecom 7L53 TPR CHC (TPR-EE-060) and 7L53 IRAS (TPR-FF143) Bonnyville and Lindbergh ccts are to moved over to a new telecom multiplex. This will require short outages (<10 min each) to each teleprotection ccts for cable connections and testing. Anti-islanding IRAS Bville and Irish Ck channels have no redundancy and both are required in service to properly operate, thus IRAS will be OOS for approx 20 min total. Pengrowth DG at 969s will be separated from the grid or offline.  
EPCOR 10-Apr-17 07:00 14-Apr-17 17:00 4.42 Days
Continuous
L2405 Breaker Outage and L2405 BF Protection Outage @ Lambton S/S Performing Breaker op-checks as part of relay maintenance and repairs to L2405 BF relay.  
ALTALINK 10-Apr-17 08:00 11-Apr-17 18:00 1.42 Days
Continuous
L674s725W (725L) Leth Open - Info City Of Lethbridge L674s725W Breaker Maintenance  
ALTALINK 12-Apr-17 08:00 13-Apr-17 18:00 1.42 Days
Continuous
L674s725E (725L) Leth Open - Info City Of Lethbridge L674s725E Breaker Maintenance  
EPCOR 17-Apr-17 07:00 17-Apr-17 17:00 10 Hours
Continuous
711L - Inland Line Maintenance & Upgrades  
ATCO 17-Apr-17 13:00 20-Apr-17 17:00 3.17 Days
Continuous
7L90 replace poles for road crossing  
EPCOR 18-Apr-17 07:00 28-Apr-17 17:00 10.42 Days
Continuous
P2406 BF Protection and a 1044L Line Outage @ Jasper S/S and Petrolia S/S Performing Breaker op-checks as part of relay maintenance and repairs to P2406 BF relay.  
ALTALINK 18-Apr-17 12:30 29-Apr-17 17:30 11.21 Days
Continuous
42s T1(Tx 18508) - GOI Bushing replacements & doble testing  
EPCOR 22-Apr-17 07:00 23-Apr-17 17:00 1.42 Days
Continuous
711L - Inland Line Maintenance & Upgrades  
EPCOR 23-Apr-17 04:00 23-Apr-17 10:00 6 Hours
Continuous
240kV Tx3 Outage @ Lambton S/S Performing Relay Op-Checks as part of relay maintenance.  
ALTALINK 24-Apr-17 07:00 24-Apr-17 07:15 15 Mins
Daily
1059L (E803s-E52s-38s) EPCOR - De-energi EPCOR requires 1059L de-energized to facilitate opening E52sEDS1  
ATCO 24-Apr-17 07:00 24-Apr-17 12:00 5 Hours
Continuous
7L73,730S 703 704 Breaker fail testing, Boucher Ck radial fed from 800s.  
ALTALINK 24-Apr-17 07:00 27-Apr-17 17:00 3.42 Days
Continuous
89s T2(TX18727,TX18728,TX18733) - GOI SCADA Equipment Upgrade  
EPCOR 24-Apr-17 07:00 28-Apr-17 17:00 4.42 Days
Continuous
TX1 @ East industrial Doble  
ALTALINK 24-Apr-17 09:30 27-Apr-17 17:30 3.33 Days
Continuous
900L (17s - 63s) - GOI Component Replacements  
ATCO 25-Apr-17 08:00 29-Apr-17 12:00 4.17 Days
Continuous
930S Synchronous Condenser Sync Condenser turnaround, unavailable for dispatch  
ALTALINK 26-Apr-17 07:30 26-Apr-17 17:30 10 Hours
Daily
523s880 (880L) GOI Wire & test trip relay for future station expansion project  
ALTALINK 28-Apr-17 08:00 11-May-17 17:00 13.38 Days
Continuous
693L/916L GOI [SWCRR] - Placeholder SWCRR: Foundation work for future U/G Riser structures  
ALTALINK 28-Apr-17 09:30 26-May-17 17:30 28.33 Days
Continuous
777L (48s - 245s) - GOI Relocate Structures AB-BC
ALTALINK 28-Apr-17 16:45 28-Apr-17 17:00 15 Mins
Daily
1059L (E803s-E52s-38s) EPCOR - De-energi EPCOR requires 1059L de-energized to facilitate closing E52sEDS1  
ALTALINK 01-May-17 07:00 01-May-17 07:15 15 Mins
Daily
908L (89s-E52s-38s) EPCOR - De-energize EPCOR requires 908L de-energized to facilitate opening E52sEDS2  
EPCOR 01-May-17 07:00 05-May-17 17:00 4.42 Days
Daily
1045L Line Outage @ Jasper S/S and 310P Sundance S/S Performing Breaker op-checks as part of relay maintenance and cutover over new line metering.  
EPCOR 01-May-17 07:00 05-May-17 17:00 4.42 Days
Continuous
TX2 @ East Industrial Doble  
EPCOR 01-May-17 07:00 05-May-17 17:00 4.42 Days
Continuous
TX4 @ Jasper CVT replacements  
ALTALINK 01-May-17 07:30 02-May-17 17:30 1.42 Days
Continuous
1061L (12s - 681s) - GOI Damper Replacements, QA/QC checks  
ALTALINK 01-May-17 07:30 04-May-17 17:30 3.42 Days
Continuous
807AL/807L (410s - 233s - I_402s) - GOI Damper Replacements  
EPCOR 02-May-17 07:00 02-May-17 17:00 10 Hours
Continuous
Tx4 and Tx2 outages @ Cloverbar S/S Performing Breaker op-checks as part of relay maintenance.  
ALTALINK 02-May-17 07:00 10-May-17 13:00 8.25 Days
Continuous
523s 138kV Bus 2,T2 & 25kV Bus 2 (676L) Reterminate 676L to new breaker bay, rename existing 523s676 breaker, connect/energize new 138kV bus 2, T2 & new Fortis 122L  
ENMAX 02-May-17 08:00 05-May-17 16:00 3.33 Days
Continuous
65.1TR. 65s 138KV South Bus 54.81 line energization  
ALTALINK 03-May-17 07:30 04-May-17 17:30 1.42 Days
Continuous
942L (71s - 681s) - GOI Damper Replacements  
EPCOR 03-May-17 08:00 03-May-17 14:00 6 Hours
Continuous
915L outage @ Cloverbar S/S and 38s S/S Performing Breaker op-checks as part of relay maintenance.  
EPCOR 05-May-17 07:00 05-May-17 17:00 10 Hours
Continuous
908L East Industrial - Ellerslie Doble  
ATCO 05-May-17 07:00 09-May-17 17:00 4.42 Days
Continuous
7L62 Reroute line into new Keg River substation, modify 7L62D3 from DLO to LS/LD
Work Sequence
May 4 PM
- transfer 5L457 to adjacent sub
May 5 AM
- Issue GOI 2-33607A (Isol. pts - 702A, 7L62D2, 7L62PTX @ 789s, 7L62D4, 701TD1 @ 797s)
- line work, modify 7L62D3
- Plains Midstream outage reqd
May 5 PM
- Collapse GOI to 7L62D3 @ 797s
- issue 2-33607B, then release 2-33607A
- re-energize 797s
May 6 AM
- restore 5L457 external load transfer to normal
May 5 PM - May 9 PM
- continue 7L62 line reroute into 789s
 
ALTALINK 07-May-17 13:00 18-May-17 17:00 11.17 Days
Continuous
42s T2 GOI Doble test and MR maintenance  
EPCOR 08-May-17 07:00 12-May-17 17:00 4.42 Days
Daily
1098L Line Outage @ Jasper S/S and Poundmaker S/S Cutover over new line metering.  
EPCOR 08-May-17 07:00 12-May-17 17:00 4.42 Days
Continuous
TX2 @ Poundmaker Doble  
EPCOR 08-May-17 07:00 12-May-17 17:00 4.42 Days
Continuous
915L @ Cloverbar -East Edmonton CT replacements  
EPCOR 08-May-17 07:00 23-May-17 17:00 15.42 Days
Daily
CV5 @ Castledowns to Victoria Inspection and repair  
ALTALINK 08-May-17 11:00 11-May-17 17:00 3.25 Days
Continuous
910L (89s - 288s) - GOI SCADA Equipment Upgrade  
ENMAX 09-May-17 08:00 09-May-17 16:00 8 Hours
Continuous
918L Doble PT 918  
ATCO 09-May-17 09:30 11-May-17 16:00 2.27 Days
Continuous
749S 704,749S 703 749S 7L33 Sync Bypass Demo / Maint Sw Removal

Remove Sync Circuit bypass switches and Maintenance Switch

CG&E to be fed radially from 845S
 
ENMAX 11-May-17 08:00 11-May-17 16:00 8 Hours
Continuous
832L. 10B138-832. 12B138-832 SF6 Gas Sample 10B138-832, Doble 12B138-832  
EPCOR 12-May-17 07:00 12-May-17 17:00 10 Hours
Continuous
Bus 2 CVT @ Poundmaker Doble  
ENMAX 13-May-17 08:00 24-May-17 16:00 11.33 Days
Continuous
28.80L. 28s & Sarcee 138KV Bus Differential Protection Line Protection Upgrade  
EPCOR 15-May-17 07:00 19-May-17 17:00 4.42 Days
Continuous
TX3 @ Poundmaker Doble  
ALTALINK 15-May-17 11:00 18-May-17 17:00 3.25 Days
Continuous
914L (89s - 86s) - GOI SCADA Equipment Upgrade  
ATCO 16-May-17 08:00 18-May-17 15:00 2.29 Days
Continuous
7L81,791S 702 Install new 7L81 RASA & RASB  
ENMAX 17-May-17 08:00 18-May-17 16:00 1.33 Days
Continuous
833L. 12B138-833 HV Breaker Inspection, Doble 12B138-833.  
EPCOR 19-May-17 07:00 19-May-17 17:00 10 Hours
Continuous
Bus 1 CVT @ Poundmaker Doble  
ALTALINK 22-May-17 08:30 22-May-17 12:30 4 Hours
Daily
648s29 (T3 & 954L) - Advice Trip testing required for 648s749E protection replacement  
EPCOR 23-May-17 07:00 23-May-17 17:00 10 Hours
Continuous
930L Poundmaker to North Calder Doble  
ALTALINK 23-May-17 07:00 25-May-17 17:00 2.42 Days
Continuous
89s1352,89s1452 - GOI SCADA Equipment Upgrade  
ENMAX 23-May-17 08:00 04-Jun-17 16:00 12.33 Days
Continuous
30.81L (SWCRR)-Temporary tie in to 35 Sub. Energization of HV switchgear at 35 sub through 30.81  
ALTALINK 23-May-17 09:30 25-May-17 17:30 2.33 Days
Continuous
526AL (638s-526L367-526L220) - GOI Line maintenance  
EPCOR 24-May-17 07:00 24-May-17 17:00 10 Hours
Continuous
1098L Poundmaker to Jasper Doble  
EPCOR 29-May-17 07:00 02-Jun-17 17:00 4.42 Days
Continuous
TX1 @ Petrolia Doble  
ENMAX 29-May-17 08:00 09-Jun-17 16:00 11.33 Days
Continuous
24.83L. 24s & 74s 138KV Bus Differential Protection Line Protection Upgrade on 24.83L  
EPCOR 02-Jun-17 07:00 02-Jun-17 17:00 10 Hours
Continuous
TX1 CVT @ Petrolia Doble  
EPCOR 05-Jun-17 07:00 06-Jun-17 17:00 1.42 Days
Continuous
P2401 @ Petrolia Doble  
EPCOR 07-Jun-17 07:00 08-Jun-17 17:00 1.42 Days
Continuous
P2402 @ Petrolia Doble  
ENMAX 08-Jun-17 08:00 08-Jun-17 16:00 8 Hours
Continuous
24.83L. 24B138-24.83 Doble breaker  
EPCOR 09-Jun-17 07:00 09-Jun-17 17:00 10 Hours
Continuous
1043L CVT @ Petrolia - Doble  
EPCOR 09-Jun-17 07:00 21-Jun-17 17:00 12.42 Days
Continuous
1055L ( Argyll - Petrolia ) Steel Pole Refurbishment  
EPCOR 12-Jun-17 07:00 13-Jun-17 17:00 1.42 Days
Continuous
P2403 BKR @ Petrolia Doble  
EPCOR 14-Jun-17 07:00 15-Jun-17 17:00 1.42 Days
Continuous
P2406 BKR @ Petrolia Doble  
ATCO 14-Jun-17 08:00 14-Jun-17 16:30 8.5 Hours
Continuous
7L27 (834s Wesley Creek - A793s West Peace River),793S 705 793S 705 BREAKER SF6 HGF PARTIAL TESTING

7L27 Open ended for the duration of the work
 
ALTALINK 17-Jun-17 07:00 08-Jul-17 17:00 21.42 Days
Continuous
928L (17s-42s) GOI [SWCRR] SWCRR Line relocate: Set structures and string  
ALTALINK 17-Jun-17 07:00 08-Jul-17 17:00 21.42 Days
Continuous
906L (17s-42s) GOI [SWCRR] SWCRR String new alignment  
EPCOR 19-Jun-17 07:00 20-Jun-17 17:00 1.42 Days
Continuous
P2405 BKR @ Petrolia Doble  
EPCOR 21-Jun-17 07:00 23-Jun-17 17:00 2.42 Days
Continuous
TX2 @ Petrolia Maint  
EPCOR 22-Jun-17 07:00 06-Jul-17 17:00 14.42 Days
Continuous
1056L ( Argyll - Bellamy ) Steel Pole Refurbishment  
EPCOR 25-Jun-17 07:00 30-Jun-17 17:00 5.42 Days
Continuous
P2404 BKR @ Petrolia Maint  
ALTALINK 04-Jul-17 08:00 04-Jul-17 12:00 4 Hours
Daily
252s (704L/7L50) - GOI Cut Open Point A into 704L-10. Open Point A needed to isolate 252s2 for breaker replacement later on.  
EPCOR 05-Jul-17 07:00 07-Jul-17 17:00 2.42 Days
Continuous
TX3 @ Poundmaker Tapchanger maint  
EPCOR 07-Jul-17 07:00 08-Jul-17 17:00 1.42 Days
Continuous
TX1 @ Genesee Tapchanger maint  
EPCOR 07-Jul-17 07:00 19-Jul-17 17:00 12.42 Days
Continuous
1044L ( Jasper - Petrolia ) Steel Pole Refurbishment  
EPCOR 09-Jul-17 07:00 09-Jul-17 17:00 10 Hours
Continuous
TX2 @ Genesee Tapchanger maint  
ALTALINK 10-Jul-17 12:15 21-Jul-17 16:15 11.17 Days
Continuous
163s T2 (Tx18482) GOI Replace 163s T2 Bushings, T2 Maintenance  
ALTALINK 11-Jul-17 07:30 16-Jul-17 17:30 5.42 Days
Continuous
39s T1(Tx 18107) - GOI Replacing bushings  
ALTALINK 14-Jul-17 10:00 14-Jul-17 13:00 3 Hours
Daily
252s (704L/7L50) - GOI Close Open Point C To 704L-10.  
EPCOR 16-Jul-17 07:00 18-Jul-17 17:00 2.42 Days
Continuous
TX1 @ Cloverbar Tapchanger maint  
ALTALINK 17-Jul-17 07:30 21-Jul-17 12:30 4.21 Days
Continuous
39s T2(Tx 5778) - GOI Replacing bushings  
ALTALINK 26-Jul-17 09:00 26-Jul-17 13:00 4 Hours
Daily
I_485s Telecom 1041/1036L De-energized The MW radio between 120S Picture Butte and 554S Travers requires firmware upgrade to avoid unplanned outage. This outage requires 1041L and 1036L to be opened AT THE SAME TIME for three hours, up to four for contingencies. Upgrade required in order to avoid any unplanned breakdown or malfunction of the system.  
SUNCOR 02-Aug-17 08:00 08-Aug-17 20:00 6.5 Days
Continuous
29PL9-13 (29EDD-34 - 29EDD-65) maintenance from 29PS-216 to 29PS-201  
SUNCOR 09-Aug-17 08:00 15-Aug-17 20:00 6.5 Days
Continuous
29PL9-12 (29EDD-34 - 29EDD-65) 5 YR maintenance - from 29PS220 to 29PS-63 SLD - SL30-P-141-106 & SL30-P141-109  
ATCO 15-Aug-17 08:00 17-Aug-17 16:00 2.33 Days
Continuous
826S 901T Routine Maintenance on 901T, 902T will remain in service, 502R 20 MVAR reactor unavailable for dispatch  
ENMAX 21-Aug-17 08:00 21-Aug-17 16:00 8 Hours
Continuous
30.81L (SWCRR)-30.81 decomissioned  
ATCO 22-Aug-17 08:00 24-Aug-17 16:00 2.33 Days
Continuous
826S 902T Routine Maintenance on 902T, 901T will remain in service, 503R, 504R 20 MVAR reactors unavailable for dispatch, Stn service will be on 5L263 alternate source  
ALTALINK 24-Aug-17 07:00 01-Oct-17 17:00 38.42 Days
Continuous
916L (42s-5s) GOI [SWCRR] SWCRR Line construction  
ALTALINK 24-Aug-17 07:00 01-Oct-17 17:00 38.42 Days
Continuous
693L (42s-C10s) GOI [SWCRR] SWCRR Line construction  
SUNCOR 04-Sep-17 08:00 22-Sep-17 20:00 18.5 Days
Continuous
29EDD-3 29PT-6 oil leak repairs  
ALTALINK 10-Sep-17 07:30 30-Sep-17 17:30 20.42 Days
Continuous
62s202 (202L) - GOI Upgrading protections  
ALTALINK 11-Sep-17 11:00 22-Sep-17 15:00 11.17 Days
Continuous
74s T2 GOI Fix oil leaks on T2 Tx 18571  
ALTALINK 01-Oct-17 07:30 22-Oct-17 17:30 21.42 Days
Continuous
62s201 (801L) - GOI Upgrading protections  
ALTALINK 05-Oct-17 08:00 03-Nov-17 17:00 29.38 Days
Continuous
910L (89s-288s) GOI [SWEATD] 910L reconfig @ 289s  
ALTALINK 05-Oct-17 08:00 03-Nov-17 17:00 29.38 Days
Continuous
914L (89s-86s) GOI [SWEATD] 914L reconfig @ 289s  
ATCO 16-Oct-17 07:00 29-Oct-17 18:00 13.46 Days
Continuous
840S CONVERTER McNeill 2017 Fall turn around. Site shut down for maint. work. AB-SK
ALTALINK 13-Nov-17 10:00 16-Nov-17 17:00 3.29 Days
Continuous
63s (912L - A732s) - GOI Replace A and B Line Protection  
ALTALINK 14-Nov-17 08:00 25-Nov-17 17:00 11.38 Days
Continuous
1043L (320p-E816s) GOI [SWEATD] 1043L reconfig  
ATCO 27-Nov-17 07:00 30-Nov-17 17:30 3.44 Days
Continuous
9L01 9L01 Install piles for new structures for Thickwood tap.  
ATCO 02-Feb-18 07:00 09-Feb-18 17:30 7.44 Days
Continuous
9L07 Install 9L07 cut in structures for new 951S Thickwood Hills substation.  
ATCO 09-Feb-18 07:00 11-Feb-18 17:30 2.44 Days
Continuous
9L07 (1) String new portion 9L01/9L30 over 9L07 for new 951S Thickwood Hills substation.  
ATCO 15-Feb-18 07:00 24-Feb-18 17:30 9.44 Days
Daily
9L01 9L01 Cut in for in and out addition of 951S Thickwood Hills substation. Install new structures.  
ATCO 27-Feb-18 07:00 04-Mar-18 18:00 5.46 Days
Continuous
7L22 Build junction for new in and out POD 2030S Hughes  
ALTALINK 06-Jun-18 07:00 09-Jul-18 17:00 33.42 Days
Continuous
RATD 929L(74s-63s) GOI Cut in 929L in and out from 287s (287s-63s)  
ALTALINK 06-Jun-18 08:00 09-Jul-18 17:00 33.38 Days
Continuous
RATD 925L(74s-63s) GOI install foundations for Hazelwood line in/out  
ATCO 10-Sep-18 09:00 14-Sep-18 17:00 4.33 Days
Continuous
801S 901T 801S Anderson 901T Re-test Sept 10, 2018  
ATCO 18-Sep-18 07:00 20-Sep-18 17:30 2.44 Days
Continuous
9L01 9L01 Cut in for in and out addition of 951S Thickwood Hills substation. Remove bypass at substation.  
ATCO 25-Sep-18 07:00 27-Sep-18 17:30 2.44 Days
Continuous
9L07 Cut in 951S Thickwood Hills substation.  

AB-BC, AB-SK & AB-MATL: refer to AESO web posting: http://itc.aeso.ca/itc/public/reportIndex.do
Also,
AB-BC, AB-SK & AB-MATL: refer to ISO Rule 203.6: http://www.aeso.ca/rulesprocedures/18592.html

Prepared On: 2017-02-22   4:14:23 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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