Alberta Electric System Operator
Long Range Significant Transmission Outages for the period of 24 months starting 2014-10-11

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 30-May-14 08:00 31-Oct-14 16:00 154.33 Days
Continuous		 840S McNeill Station,840s 901T (840s MCNEILLSTATION),840s 701T (840s MCNEILLSTATION) upgrade McNeill HVDC controls AB-SK
ALTALINK 14-Jun-14 07:00 31-Oct-14 18:00 139.46 Days
Continuous		 1034L (244s Bowmanton - 324s Cassils),1035L (244s Bowmanton - 324s Cassils),1088L (324s Cassils - 2075s Newell) EATL Interface: Line cut in and out  
EPCOR 25-Jun-14 07:00 15-Nov-14 18:00 143.5 Days
Continuous		 1055L (629s Argyll Transfer - 816s Petrolia),240BA2 (814s Bellamy - 629s Argyll Transfer Station) reterminate and rebuild as required on the 240 Kv oil filled cable at 629s  
ALTALINK 21-Aug-14 13:00 01-Mar-15 17:00 192.21 Days
Continuous		 33s3 (33s Spray) maintenance  
ALTALINK 15-Sep-14 07:30 22-Oct-14 18:00 37.44 Days
Continuous		 911L (59s Peigan - ENMAX 65) FATD - SFTP: BYPASS #3 # 4 & CROSSING 6.Relocate a portion of 911L off of existing ROW to allow for new 1037/1038L. AB-BC
AESO 15-Sep-14 08:00 31-Oct-14 17:00 46.38 Days
Continuous		 983L (251S Whitla - 244S Bowmanton),964L (251s Whitla - 244s Bowmanton) step bolt replacement - deficiency from construction - SATR BW  
ALTALINK 15-Sep-14 08:30 17-Oct-14 17:00 32.35 Days
Continuous		 310p 1352 (310p Sundance),310p 1452 (310p Sundance) replace 310p1352, replace 310p1352 CTs, replace 310p1452 CTs, replace 310p1352 breaker fail protection, replace PTs  
ATCO, IMPERIALOIL 01-Oct-14 08:00 29-Oct-14 16:00 28.33 Days
Continuous		 7L105 (837s Mahihkan - 909s Mahno) maintenance  
CapitalPower 05-Oct-14 08:00 25-Nov-14 08:00 51.04 Days
Continuous		 615S Halkirk DSTATCOM trasnfomer  
ALTALINK 06-Oct-14 00:00 11-Oct-14 08:00 5.33 Days
Continuous		 320p3452 GOI Replace breaker control module  
ALTALINK 06-Oct-14 07:30 16-Oct-14 17:00 10.4 Days
Continuous		 901L (63s Red Deer - 901AL tap),901L (74s Janet - 901AL tap) replace structures 307 and 309 with Steel H Frames.  
ALTALINK 06-Oct-14 08:00 11-Oct-14 08:00 5 Days
Continuous		 320p3452 GOI Replace breaker control module  
ATCO, SUNCOR 09-Oct-14 08:00 15-Oct-14 19:00 6.46 Days
Continuous		 29PL9-1 (29EDD-1 Millennium - 848s Ruth Lake) Regular mtce on relay, CVT, Arrestor and cleaning.  
ENMAX 11-Oct-14 06:30 11-Oct-14 19:00 12.5 Hours
Continuous		 906L ENMAX:OH crews working on Distribution on feeder 25-36.112  
ALTALINK 11-Oct-14 07:00 13-Oct-14 17:00 2.42 Days
Continuous		 956L (103s-59s) GOI Trouble corrective: Replace step bolts  
ALTALINK 11-Oct-14 07:30 22-Oct-14 18:00 11.44 Days
Continuous		 1203L (320p Keephills - 330p Genesee) Cut 1203L in/out of 510s. Energize 500 kV equipment at end of outage - WATL AB-BC/MATL
EPCOR 11-Oct-14 08:00 22-Oct-14 16:00 11.33 Days
Continuous		 1203 Line 320P Keephills to 330P Genesee Sunnybrook Project HVDC/WATL Project & the commisioning of the 12038/1239 transmission lines  
EPCOR 11-Oct-14 08:00 05-Nov-14 18:00 25.46 Days
Continuous		 1238L (From Old 1203L Bay) @ Genesee Cutovers of new protection panel, perform Final End to End Test for New 1238L and energize 1238L  
EPCOR 13-Oct-14 07:00 18-Oct-14 18:00 5.46 Days
Continuous		 557s Castledowns CD2406 Retrofit of the Alstom Breaker  
ENMAX 13-Oct-14 08:00 15-Oct-14 16:00 2.33 Days
Continuous		 25B240-D139 Doble, SF6 Sample & Install new position indicator (Day 1). First year check/Maintenance (Days 2&3)  
BCH 13-Oct-14 08:00 16-Oct-14 16:00 3.33 Days
Continuous		 2L294 (Cranbrook - A.A. Lambert) replacing insulators at CBK/AAL/NLY - BC maintenance does not affect AB ATC AB-BC
ALTALINK, ENMAX 14-Oct-14 08:00 16-Oct-14 16:00 2.33 Days
Continuous		 (Energize new: 693L,10PT138-693),832L,832L (ENMAX 10 - ENMAX 12),10.2TR Remove T-Tap & terminate new 693L & 832L. Forward energize 10.2TR VIA 693L & 832L at return  
ALTALINK 14-Oct-14 08:00 17-Oct-14 17:00 3.38 Days
Continuous		 310p2852 GOI Replace CTs, 767L will be closed to carry the 310p load. Require redundant protections to come out of service to facilitate the replacement of the CTs.  
ALTALINK 14-Oct-14 11:00 14-Oct-14 17:00 6 Hours
Daily		 17s922N (922L) - GOI,922L (310p Sundance - 17s Benalto) Hot Switch Repair AB-BC
ALTALINK 15-Oct-14 07:00 15-Oct-14 19:00 12 Hours
Continuous		 223s Station (701L) GOI Close open points, Energize new 223s T3 & test protections  
ALTALINK 15-Oct-14 07:00 16-Oct-14 17:00 1.42 Days
Continuous		 T2,69s24 (partial 138kV Bus,T4) - GOI 138kV Switch Replacement (69s24)  
ALTALINK 15-Oct-14 08:00 15-Oct-14 17:00 9 Hours
Daily		 13s 138kV North Bus & T2 - GOI Bus dampers coming out of bus  
ENMAX 15-Oct-14 08:00 17-Oct-14 16:00 2.33 Days
Continuous		 25B240-D138 Doble, SF6 Sample & Install new position indicator (Day 1). First year check/Maintenance (Days 2&3)  
ALTALINK 15-Oct-14 09:00 15-Oct-14 13:00 4 Hours
Daily		 154s VT3 (971L)Advice adjust tension on control cables no outage to 971L  
ALTALINK 15-Oct-14 19:01 16-Oct-14 17:00 21.98 Hours
Continuous		 223s Partial 138kV Bus (701L) GOI Install new bus protections and trip test breakers  
ATCO 16-Oct-14 07:30 17-Oct-14 17:00 1.4 Days
Continuous		 9L20 (766s Nevis - 755s Cordel) 9L20 O/S FOR DRAGLINE WALK AB-BC/MATL
ALTALINK 16-Oct-14 07:30 17-Oct-14 17:00 1.4 Days
Continuous		 9L912(63s - A766s) GOI for ATCO (info o 9L20 O/S FOR DRAGLINE WALK  
ALTALINK 16-Oct-14 08:00 17-Oct-14 17:00 1.38 Days
Continuous		 9L20 (A755s - A766s) GOI for ATCO (info) ATCO Work  
ALTALINK 16-Oct-14 08:00 17-Oct-14 17:00 1.38 Days
Continuous		 9L20 ATCO Outage - Info 9L20 O/S FOR DRAGLINE WALK  
AESO 16-Oct-14 08:00 22-Oct-14 19:00 6.46 Days
Continuous		 29PL9-2 (29EDD-1 Millennium - 848s Ruth Lake) Regular mtce on relay, CVT, Arrestor and cleaning.  
ALTALINK 16-Oct-14 08:30 16-Oct-14 09:00 30 Mins
Daily		 310p152 Advice Complete trip test from 310p1352 breaker fail  
ALTALINK 16-Oct-14 09:15 16-Oct-14 09:45 30 Mins
Daily		 310p452 Advice Complete trip test from 310p1352 breaker fail  
ALTALINK 16-Oct-14 10:00 16-Oct-14 10:30 30 Mins
Daily		 310p752 Advice Complete trip test from 310p1352 breaker fail  
ATCO 16-Oct-14 10:00 17-Oct-14 17:00 31 Hours
Continuous		 766S 901T 766S NEVIS 901T WILL BE REMOVED FROM SERVICE FOR MTCE ON BKR 701
SEE SCADA AND SLD NOTES.		  
ALTALINK 16-Oct-14 10:45 16-Oct-14 11:15 30 Mins
Daily		 310p1052 Advice Complete trip test from 310p1352 breaker fail  
ALTALINK 16-Oct-14 11:30 16-Oct-14 12:00 30 Mins
Daily		 310p1652 Advice Complete trip test from 310p1352 breaker fail  
ALTALINK 16-Oct-14 12:45 16-Oct-14 13:15 30 Mins
Daily		 310p1952 Advice Complete trip test from 310p1352 breaker fail  
ALTALINK 16-Oct-14 13:30 16-Oct-14 14:00 30 Mins
Daily		 310p2252 Advice Complete trip test from 310p1352 breaker fail  
ALTALINK 16-Oct-14 14:15 16-Oct-14 14:45 30 Mins
Daily		 310p2552 Advice Complete trip test from 310p1352 breaker fail  
ENMAX 17-Oct-14 07:00 18-Oct-14 19:00 1.5 Days
Continuous		 240KV Ring @ 162s,SW 143 & 142,PT Z42 maintenance  
ALTALINK 18-Oct-14 07:30 18-Oct-14 15:00 7.5 Hours
Daily		 914L (86s Bigstone - 89s Ellerslie),86s 1252 (86s Bigstone) 240kV Breaker Maintenance AB-BC
ALTALINK 18-Oct-14 07:30 19-Oct-14 17:00 1.4 Days
Daily		 86s1252 (914L) - GOI 240kV Breaker Maintenance  
ALTALINK 18-Oct-14 08:00 19-Oct-14 16:00 1.33 Days
Daily		 618s725N (725AL) - GOI RTU Replacement Project  
ALTALINK 18-Oct-14 08:00 19-Oct-14 16:00 1.33 Days
Continuous		 207L (370s-L111s) - Advice CoL to repair bus connections and structures (L111s)  
EPCOR 18-Oct-14 08:00 22-Oct-14 18:00 4.42 Days
Continuous		 1239L (From Old 1209L Bay) @ Genesee To perform Final End to End Test for New 1239L protection to Sunnybrook  
BCH 18-Oct-14 09:00 18-Oct-14 19:00 10 Hours
Continuous		 5L96 (Selkirk - Vaseux Lake) test disconnect - BC maintenance does not affect AB ATC AB-BC
ALTALINK 19-Oct-14 15:00 19-Oct-14 17:00 2 Hours
Daily		 86s 1752 (86s Bigstone) Breaker Low Oil  
EPCOR 20-Oct-14 07:00 25-Oct-14 18:00 5.46 Days
Continuous		 987s Cloverbar C2407 Retrofit of the Alstom Breaker  
ALTALINK 20-Oct-14 07:30 23-Oct-14 17:00 3.4 Days
Daily		 912L (63s Red Deer - 766s Nevis) Replace 63s58 PT & Switch Work AB-BC
ENMAX 20-Oct-14 08:00 20-Oct-14 16:00 8 Hours
Continuous		 25B240-D134 (ENMAX 25) First year check/Maintenance  
ALTALINK 20-Oct-14 08:00 23-Oct-14 17:00 3.38 Days
Continuous		 32s22 GOI Install new CTs at 32s22  
ALTALINK 20-Oct-14 08:00 23-Oct-14 18:00 3.42 Days
Continuous		 275s2 GOI Replace CT’s at 275s2  
ALTALINK 20-Oct-14 08:30 23-Oct-14 16:30 3.33 Days
Continuous		 310p1252 GOI Replace 310p1252 CTs. Please note that some redundant protections will have out of service 1 at a time to facilitate the replacement of the CTs.  
EPCOR 21-Oct-14 07:00 22-Oct-14 18:00 1.46 Days
Daily		 Lambton Tx2 Replace PT  
ENMAX 21-Oct-14 08:00 21-Oct-14 16:00 8 Hours
Continuous		 25B240-D142 First year check/Maintenance  
ALTALINK 21-Oct-14 08:00 21-Oct-14 17:00 9 Hours
Daily		 122s T2 TX18553 - GOI Replace oil gauge, Doble, hot spot and o-ring replacement  
ALTALINK 21-Oct-14 08:00 21-Oct-14 17:00 9 Hours
Daily		 39s T1 & 240kV Bus 1 - GOI 39s34 Switch Repairs  
ATCO 21-Oct-14 13:00 21-Oct-14 17:00 4 Hours
Continuous		 9L948 (650s Hansman Lake - 863s Paintearth) 9L948 IS REQUIRED TO BE OPEN ENDED @ 650S HANSMAN LAKE TO ACCOMMODATE TESTING OF THE NEW SVC @ 959S LANFINE
ALTA LINK WILL ONLY ALLOW 5 MINUTE OUTAGE ON 9L948
ALTALINK WILL ONLY ALLOW 9L24 & 948L TO BE REMOVED FROM SERVICE AT THE SAME TIME FOR APPROX 5 MIN

PLEASE REFER TO THE ATTACHED RISK ASSESSMENTS

THIS WORK IS IN CONJUNCTION WITH CROW #2-28022		  
ENMAX 22-Oct-14 08:00 22-Oct-14 16:00 8 Hours
Continuous		 162B240-RB136 Maintenance, SF6 Sample  
ALTALINK 22-Oct-14 08:00 22-Oct-14 17:00 9 Hours
Daily		 132s15 - GOI 240kV Breaker Maintenance  
ALTALINK 22-Oct-14 08:00 23-Oct-14 17:00 1.38 Days
Continuous		 268s 503L (268s-323s) - Advice Install Grounds For 323sCustomer  
EPCOR 22-Oct-14 08:00 05-Nov-14 18:00 14.46 Days
Continuous		 1238 Line 330P to 510S Isolate the 1238 line Node formally the 1209 line Node  
ENMAX, ALTALINK 22-Oct-14 11:30 22-Oct-14 16:00 4.5 Hours
Continuous		 918L (17s Benalto - 162s Beddington),162s 240KV Bus Substation Washing, SCADA Function Checks AB-BC
ALTALINK 23-Oct-14 07:00 28-Oct-14 18:00 5.46 Days
Continuous		 985L (74s-C25s) GOI(Commission) L to J: Complete L 10 Bay work and test energize new bay and Line to C25s. Close open points on 985L  
ALTALINK 23-Oct-14 08:00 23-Oct-14 17:00 9 Hours
Daily		 74s56 (C1) - GOI 138kV Breaker Maintenance AB-BC
AESO 23-Oct-14 08:00 30-Oct-14 19:00 7.46 Days
Continuous		 29PL9-5 (29EDD-1 Millennium - 29EDD-34) Regular mtce on relay, CVT, Arrestor and cleaning.  
ALTALINK 23-Oct-14 09:30 23-Oct-14 17:00 7.5 Hours
Daily		 48s887X (887L) - GOI 138kV Breaker Maintenance AB-BC
ENMAX 23-Oct-14 11:30 23-Oct-14 16:00 4.5 Hours
Continuous		 21.80L (42s Sarcee - ENMAX 21),21.1C (ENMAX 21),21.4TR (ENMAX 21),20.82L (ENMAX 21 - ENMAX 20),21.1TR,21s 138KV Bus Substation Washing AB-BC
ALTALINK 25-Oct-14 07:00 25-Oct-14 18:00 11 Hours
Daily		 74s T2 (74s Janet) ECTP and L to J: Install new double curlew slack span bay going into new 985L(old 937L) bay.  
ENMAX 25-Oct-14 08:00 25-Oct-14 10:00 2 Hours
Continuous		 RB131,162s 240KV Bus SCADA Function Checks  
ALTALINK 25-Oct-14 08:00 26-Oct-14 17:00 1.38 Days
Continuous		 86s T1 & 138kV Bus - GOI Oil Gauge, Switch Hot Spots  
ENMAX 25-Oct-14 10:00 25-Oct-14 12:00 2 Hours
Continuous		 162s 240KV Bus,RB134 SCADA Function Checks  
ALTALINK 27-Oct-14 07:00 31-Oct-14 18:00 4.46 Days
Continuous		 1077L (74s-5s) GOI ECTP: Install 1077L conductors fromm SS thru QQ and to 6 pole U/G riser on 936L bypass. Line de-energized  
EPCOR 27-Oct-14 07:00 01-Nov-14 18:00 5.46 Days
Continuous		 557s Cloverbar C2408 Retrofit of the Alstom Breaker  
ALTALINK 27-Oct-14 08:00 31-Oct-14 17:00 4.38 Days
Continuous		 929L (63s - 74s) GOI Complete line reconfiguration for 1325L crossing AB-BC
ALTALINK 27-Oct-14 08:30 14-Nov-14 16:30 18.38 Days
Continuous		 310p1152 GOI Replace 310p1152 CTs, replace 310p1152 breaker, replace 310p1152 breaker fail protection. Please note that some redundant protections will have out of service 1 at a time to facilitate the replacement of the CTs.  
ALTALINK 27-Oct-14 12:00 06-Nov-14 17:00 10.25 Days
Continuous		 63s T1 TX18310 - GOI Bushing Replacement & Oil Leaks  
ALTALINK 27-Oct-14 13:00 28-Oct-14 16:00 27 Hours
Daily		 618s863X (863L/891L) - GOI RTU Replacement Project  
ALTALINK 28-Oct-14 08:00 26-Nov-14 08:00 29.04 Days
Continuous		 244s 240/138KV buss & TXFs GOI Close In Open points A & B  
ALTALINK 29-Oct-14 07:00 31-Oct-14 18:00 2.46 Days
Continuous		 1003L (74s-C25s) GOI ECTP: Upgrade CT ratio, Update laminated pole, Install inter- phase spacers and P & C work  
AESO 30-Oct-14 08:00 05-Nov-14 19:00 6.5 Days
Continuous		 29PL9-6 (29EDD-1 Millennium - 29EDD-34) Regular mtce on relay, CVT, Arrestor and cleaning.  
ALTALINK 30-Oct-14 08:30 30-Oct-14 17:00 8.5 Hours
Daily		 17s16 (C1) - GOI Cap Bank Testing AB-BC
ALTALINK 31-Oct-14 07:00 31-Oct-14 17:00 10 Hours
Daily		 927L & 356s bkrs GOI Replace VT 4  
ALTALINK 01-Nov-14 06:30 03-Nov-14 18:00 2.52 Days
Continuous		 936L (74s-5s-102s) GOI(Bypass energizati L to J: 936L bay swap from L17 to new 936L 240kv U/G bypass. AB-BC
EPCOR 03-Nov-14 07:00 05-Nov-14 18:00 2.46 Days
Continuous		 Poundmaker P2401 Retrofit of the Alstom Breaker  
ALTALINK 03-Nov-14 08:00 04-Nov-14 16:00 1.33 Days
Continuous		 310p B Bus GOI Replace strain insulators  
ENMAX 03-Nov-14 08:00 04-Nov-14 16:00 1.33 Days
Continuous		 24.83L (74s Janet - ENMAX 24) Point trotter phase 2 ptB salvage  
ALTALINK 03-Nov-14 08:00 07-Nov-14 17:00 4.38 Days
Continuous		 154s 240kv bus 2 Advice Add SS VT and connect to 240kv bus 2  
ALTALINK 04-Nov-14 06:30 06-Nov-14 18:00 2.48 Days
Continuous		 937L (102s-74s) GOI L to J: 937L bay swap from L12 to L17. In preparetion to go to U/G bypass AB-BC
ALTALINK 04-Nov-14 07:00 05-Nov-14 17:00 1.42 Days
Continuous		 693L (42s - C10s)GOI Remove CT's ans replace with insulators  
ALTALINK 05-Nov-14 08:00 06-Nov-14 16:00 1.33 Days
Daily		 618s824 (824L) - GOI RTU Replacement Project and 824L CT ratio change upgrade project  
EPCOR 05-Nov-14 19:00 08-Nov-14 19:00 3 Days
Continuous		 Poundmaker P2404 Retrofit of the Alstom Breaker  
ATCO 07-Nov-14 07:00 10-Nov-14 18:00 3.46 Days
Continuous		 9L59 String new 13L50 line over 9L59 Between Towers 882 & 883 @ NW 18-34-13-4.
Work cannot be done using live line techniques due to clearance limitations
AESO Derates may apply @ Sheerness depending on system and wind conditions		  
ALTALINK 07-Nov-14 15:00 07-Nov-14 17:00 2 Hours
Daily		 154s Station service advice close open point for new SS2  
ALTALINK 08-Nov-14 08:00 24-Nov-14 18:00 16.42 Days
Continuous		 74s T1 and 240 kV Bus 1 GOI L to J project. Tie in North Bus Extension.  
EPCOR 10-Nov-14 07:00 12-Nov-14 18:00 2.46 Days
Continuous		 Poundmaker PM2402 Retrofit of the Alstom Breaker  
EPCOR 12-Nov-14 19:00 15-Nov-14 18:00 2.96 Days
Continuous		 Poundmaker PM2403 Retrofit of the Alstom Breaker  
ALTALINK 15-Nov-14 08:00 16-Nov-14 17:00 1.38 Days
Continuous		 83s 138kV West Bus (610L,172L,C2) - Ad Replace west bus 138kV PT’s [ 83s3 ]  
ENMAX 17-Nov-14 08:00 18-Nov-14 16:00 1.33 Days
Continuous		 162.1TR (ENMAX 162 Beddington),162s 138KV Bus North bus extension  
EPCOR 17-Nov-14 08:00 21-Nov-14 18:00 4.42 Days
Continuous		 B2401,B2402,BDS3,at 814s Bellamy Hydraulic maintenance by manufacturer & repairs to SF6 compartment  
EPCOR 17-Nov-14 08:00 21-Nov-14 18:00 4.42 Days
Continuous		 240BA2 814s Bellamy Repairs to a SF6 compartment on 240BA2 Node  
ENMAX 19-Nov-14 08:00 20-Nov-14 16:00 1.33 Days
Continuous		 162s 138KV Bus,162.2TR South bus extension  
EPCOR 22-Nov-14 07:00 05-Dec-14 18:00 13.46 Days
Continuous		 240CV5 Cable 557s Castledowns to 511s Victoria Manhole Inspections  
EPCOR 24-Nov-14 07:00 28-Nov-14 18:00 4.46 Days
Continuous		 511s Victoria V2401 Retrofit of the Alstom Breaker  
EPCOR 24-Nov-14 07:00 28-Nov-14 18:00 4.46 Days
Continuous		 511s Victoria TX5 Retrofit of the Alstom Breaker  
EPCOR 24-Nov-14 08:00 26-Nov-14 12:00 2.17 Days
Continuous		 814s Bellamy B2406 Hydraulic maintenance by manufacturer  
ALTALINK 24-Nov-14 08:30 12-Dec-14 16:30 18.33 Days
Continuous		 310p152 GOI Replace 310p152 CTs, replace 310p152 breaker, replace 310p152 breaker fail protection. Please note that some redundant protections will have out of service 1 at a time to facilitate the replacement of the CTs.  
SUNCOR 25-Nov-14 09:00 26-Nov-14 19:00 1.42 Days
Continuous		 29EDD-34 952_141 (29EDD-34) Gauge Replacement.  
EPCOR 26-Nov-14 13:00 28-Nov-14 18:00 2.21 Days
Continuous		 814s Bellamy B2407 Hydraulic maintenance by manufacturer  
SUNCOR 01-Dec-14 08:00 06-Dec-14 20:00 5.5 Days
Continuous		 29PL9-2 (29EDD-1 Millennium - 848s Ruth Lake) Disconnect Switch Maintenance  
SUNCOR 01-Dec-14 08:00 07-Dec-14 19:00 6.46 Days
Continuous		 29PL9-2 (29EDD-1 Millennium - 848s Ruth Lake) Regular mtce on relay, CVT, Arrestor and cleaning.  
ENMAX 06-Dec-14 08:00 06-Dec-14 16:00 8 Hours
Continuous		 23.80L,23.4TR,8KV Bus (23.4TR) Substation Washing. Wet wash if weather permits  
ATCO 08-Dec-14 07:00 15-Dec-14 18:00 7.46 Days
Continuous		 9L32 (941s Bitumount -957s McClelland) LINE MOVE FOR FORT HILLS PROJECT (55578)  
AESO 08-Dec-14 08:00 14-Dec-14 19:00 6.46 Days
Continuous		 29PL9-5 (29EDD-1 Millennium - 29EDD-34) Regular mtce on relay, CVT, Arrestor and cleaning.  
AESO 15-Dec-14 08:00 21-Dec-14 19:00 6.46 Days
Continuous		 29PL9-6 (29EDD-1 Millennium - 29EDD-34) Regular mtce on relay, CVT, Arrestor and cleaning.  
ALTALINK 25-Dec-14 08:00 31-Dec-14 16:30 6.35 Days
Continuous		 1045L (310p - 805s) ADVICE Replace VTs & 310p132 Junction box  
ALTALINK 15-Jan-15 08:00 15-Mar-15 18:00 59.38 Days
Continuous		 5s T1 and 240KV Bus 1 GOI ECTP – Replace existing TXMER with new. Commission new TXI and north bus.  
ENMAX 01-Feb-15 08:00 01-Feb-15 16:00 8 Hours
Continuous		 65.1TR,South 240KV Bus FATD, Check reversing sw, Doble, Oil sample LTC  
ALTALINK 03-Feb-15 08:00 05-Feb-15 16:00 2.33 Days
Continuous		 919L (77s-310p) - GOI SCADA Equipment Upgrade Project  
ALTALINK 10-Feb-15 08:00 12-Feb-15 16:00 2.33 Days
Continuous		 989L (77s-310p) - GOI SCADA Equipment Upgrade Project  
ALTALINK 17-Feb-15 08:00 19-Feb-15 16:00 2.33 Days
Continuous		 938L (77s-A809s) - GOI SCADA Equipment Upgrade Project  
ALTALINK 24-Feb-15 08:00 26-Feb-15 16:00 2.33 Days
Continuous		 939L (77s-A809s) - GOI SCADA Equipment Upgrade Project  
ALTALINK 03-Mar-15 08:00 05-Mar-15 16:00 2.33 Days
Continuous		 907L (77s-122s) - GOI SCADA Equipment Upgrade Project  
ALTALINK 24-Mar-15 08:00 26-Mar-15 16:00 2.33 Days
Continuous		 77s T1(TX18372) - GOI SCADA Equipment Upgrade Project  
ALTALINK 31-Mar-15 08:00 02-Apr-15 16:00 2.33 Days
Continuous		 77s T2(TX18521) - GOI SCADA Equipment Upgrade Project  
ENMAX 19-May-15 07:30 19-Jun-15 16:00 31.35 Days
Continuous		 5s Cap Bank ECTP 2s, Swap AIS to GIS AB-BC
ENMAX 01-Jun-15 07:30 14-Jun-15 16:00 13.35 Days
Continuous		 33.83L,6.82L,41.1C (ENMAX 41),41.2TR SW's 81, 82, 83, 87, 88 & 89 @ 41s Replacement, 41.2TR MD Replacement AB-BC
ENMAX 02-Jun-15 08:00 12-Jun-15 16:00 10.33 Days
Continuous		 833L ECTP 2s, Swap AIS to GIS  
ENMAX 22-Jun-15 08:00 05-Jul-15 16:00 13.33 Days
Continuous		 833L,12.2TR SW's 81, 82 & 83 @ 12s Replacement, 12.2TR MD Replacement  
ATCO 01-Jul-15 08:00 31-Aug-15 16:00 61.33 Days
Continuous		 9L32 (941s Bitumount -957s McClelland) CONNECT 2005S SECORD TO 9L32 (IN / OUT CONFIGURATION)N  
ENMAX 14-Sep-15 08:00 25-Sep-15 16:00 11.33 Days
Continuous		 36.81L Line Differential  

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

Prepared On: 2014-10-01   5:00:22 PM


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