Alberta Electric System Operator
System Co-ordination Plan
2018-03-30 to 2018-04-06
Approved Outages

Previous Version
Download CSV

From To Owner Type Element Scheduled Activity Date/Time Comments Interconnection
31-Jul-15 18:01 31-Aug-18 17:00 EPCOR Outage Rossdale C1 forced outage 1,126.96 Days
Continuous		  
28-Mar-17 12:00 31-Mar-18 12:00 ATCO TE 801s Anderson RTU/SCADA multiple SCADA cutovers from existing RTU to new RTU 368 Days
Continuous		  
09-Oct-17 17:00 30-Apr-18 16:00 ATCO Outage 826s 502R (826s Marguerite Lake) techs found scorch marks on the reactor (forced outage) 202.96 Days
Continuous		  
10-Oct-17 07:00 30-Mar-18 17:00 EPCOR TE 665s Dome RTU/SCADA 665S Dome S/S RTU 171.42 Days
Daily		  
10-Oct-17 07:00 30-Mar-18 17:00 EPCOR TE 665S Dome 665S Dome S/S relay blocking to 240 kV protection 171.42 Days
Daily		  
13-Dec-17 10:00 05-Apr-18 17:00 ATCO IO 706s 705A (706s Irish Creek) 705C new construction 113.25 Days
Continuous		  
02-Jan-18 06:30 15-Apr-18 18:30 ALTALINK RB 551L (123s Banff - 953s Lake Louise) line rebuild 103.46 Days
Daily		  
08-Jan-18 07:00 30-Apr-18 17:00 EPCOR TE 330P Genesee CIP yearly 500/138 kV password changes 112.38 Days
Daily		  
08-Jan-18 07:00 30-Mar-18 17:00 EPCOR TE 330P Genesee CIP yearly password changes 81.38 Days
Daily		  
09-Jan-18 07:30 30-Mar-18 16:00 ATCO IO 6L126 Altalink request - replacing structures and conductors from structures 1 - 151 80.31 Days
Continuous		  
09-Jan-18 08:00 30-Apr-18 17:00 ALTALINK Outage 325s C1 (325s Leduc) forced outage 111.33 Days
Continuous		  
27-Jan-18 06:00 03-Apr-18 19:00 ATCO RB 9L56 (720s Wabasca - 732s Mitsue),9L56 (720s Wabasca - 876s Brintnell) line construction parallel to 9L56 66.5 Days
Daily		  
29-Jan-18 09:00 30-Mar-18 18:00 ATCO TE 741s Fox Creek RTU/SCADA update station controller and HMI 60.33 Days
Continuous		  
06-Feb-18 07:30 30-Mar-18 17:00 EPCOR TE Meadowlark relay maintenance 52.35 Days
Daily		  
06-Feb-18 10:00 30-Mar-18 15:30 ALTALINK Outage 526L (268s Whitecourt - 526DL185) work between structures 1 - 151 52.19 Days
Continuous		  
13-Feb-18 07:30 30-Apr-18 17:00 EPCOR TE Namao relay maintenance 76.35 Days
Daily		  
17-Feb-18 06:00 03-Apr-18 19:00 ALTALINK RB 913L (69s North Barrhead - 732s Mitsue) construction of new 500 kV line parallel to 9L913 45.5 Days
Daily		  
17-Feb-18 06:00 03-Apr-18 19:00 ATCO RB 9L57 (939s Livock - 960s Birchwood Creek) new 500 kV line construction work in proximity of 9L57 45.5 Days
Daily		  
17-Feb-18 06:00 03-Apr-18 19:00 ATCO RB 9L913 (69s North Barrhead - 732s Mitsue) new 500 kV line construction parallel to 9L913 45.5 Days
Daily		  
17-Feb-18 06:00 03-Apr-18 19:00 ATCO RB 9L10 (876s Brintnell - 939s Livock) new 500 kV line construction parallel to 9L913 45.5 Days
Daily		  
20-Feb-18 09:00 30-Mar-18 18:00 ATCO TE 813s Little Smoky RTU/SCADA RTU and HMI updates 38.33 Days
Continuous		  
27-Feb-18 07:30 31-Mar-18 20:00 ENBRIDGE Outage Marias Shunt Capacitor take down shunt bank 3, disassemble and order repplacement parts 32.48 Days
Continuous		  
28-Feb-18 14:00 31-May-18 16:00 ATCO IO 2018S 7LA90D1 (2018s Muir) COG for MUIR Tap 92.04 Days
Continuous		  
04-Mar-18 20:00 06-Apr-18 17:00 ALTALINK Outage 289s 1552 (289s Saunders Lake) CT emergency repair - forced outage 32.83 Days
Daily		  
06-Mar-18 08:30 30-Apr-18 17:00 EPCOR TE Rossdale R72C2 (Rossdale),Rossdale R72C1 (Rossdale) updating relay settings 55.31 Days
Daily		  
10-Mar-18 08:00 04-Jun-18 16:00 ATCO TE 710S Vermilion blocking bus protection for breaker replacement work 86.29 Days
Continuous		  
12-Mar-18 08:00 13-Apr-18 16:00 ENMAX TE ENMAX 39 39.82L protection upgrade. C30 auto-switching relay 32.33 Days
Continuous		  
12-Mar-18 08:00 13-Apr-18 16:00 ENMAX Outage 39.82L (ENMAX 162 Beddington - ENMAX 39),162s 138-RB82 (162s Beddington),162s 138-RB83 (162s Beddington) line protection upgrade 32.33 Days
Continuous		  
12-Mar-18 08:00 30-Mar-18 16:00 ENMAX Outage 6.82L (ENMAX 6 - ENMAX 41) (SWCRR)-relocated a section of 6.82L 18.33 Days
Continuous		  
12-Mar-18 08:00 13-Apr-18 16:00 ENMAX TE ENMAX 39 39.82L protection upgrade. 138kV bus differential protection 32.33 Days
Daily		  
19-Mar-18 07:00 03-Apr-18 17:30 ALTALINK Outage 184s T3 (184s Petro-Canada Edmonton),606L (184s Petro-Canada Edmonton - 185s Bretville),184s Petro-Canada Edmonton 138 kV Bus 1 move metering, P&C & telecom to new control building 15.44 Days
Continuous		  
19-Mar-18 08:00 30-Mar-18 16:00 ENMAX Outage 39.3TR (ENMAX 39) bushing/CT replacement and differential relay replacement 11.33 Days
Continuous		  
19-Mar-18 08:00 18-May-18 17:00 ATCO TE 710s Vermilion RTU/SCADA download RTU & HMI program 60.38 Days
Continuous		  
20-Mar-18 07:00 03-Apr-18 17:30 ATCO RB 9L07 (888s Dover - 2011s Dawes) to facilitate work on adjacent 9L01 circuit. 2-32024 14.44 Days
Daily		  
20-Mar-18 12:00 06-Apr-18 18:00 ALTALINK Outage 551L (945s Sunshine Village - 953s Lake Louise) energize/de-energize bypass line between Str163 and Str188 to allow for rebuild of 551L (Sections 8) 17.25 Days
Continuous		  
20-Mar-18 12:00 06-Apr-18 18:00 ALTALINK IO 551L (945s Sunshine Village - 953s Lake Louise) disconnect 551EL loads from the 551L 17.25 Days
Continuous		  
24-Mar-18 10:00 27-Apr-18 16:00 ATCO Outage 780s 707 (780s Lubicon) failed relay repair 34.25 Days
Continuous		  
25-Mar-18 08:00 07-Apr-18 16:00 ENMAX Outage 22.3TR (ENMAX 22) install NGR 13.33 Days
Continuous		  
25-Mar-18 12:00 30-Mar-18 18:00 SUNCOR TE 29PL9-17 (29EDD-1 Millennium - 29EDD-94 Voyageur) protection B 5.25 Days
Continuous		  
26-Mar-18 08:00 13-Apr-18 16:00 ENMAX TE 162s Beddington 39.82L diff panel upgrade settings changes required 18.33 Days
Daily		  
26-Mar-18 08:00 01-Apr-18 18:00 Syncrude Outage AL-1 (D05 Syncrude - Aurora) line maintenance 6.42 Days
Continuous		  
26-Mar-18 08:00 30-Mar-18 17:00 ALTALINK Outage 510s ACF14 (510s Sunnybrook) reactor inspection and leak repair 4.38 Days
Continuous		  
26-Mar-18 08:00 30-Mar-18 16:00 ATCO TE 7L65 (709s Vegreville - 710s Vermilion) blocking 21A,B/7L65 relays for testing 4.33 Days
Continuous		  
26-Mar-18 08:00 30-Mar-18 16:00 ATCO TE 710S Vermilion 86-50BF-1/700BS1, 94-50BF-1/700BS1 temporary blocking for testing 4.33 Days
Continuous		  
26-Mar-18 08:00 07-Apr-18 11:00 ATCO IO AltaLink NW AltaLink outage AltaLink work at 69s 12.13 Days
Continuous		  
26-Mar-18 08:00 12-Apr-18 17:00 ATCO TE 706S Irish Creek,7L53 (706s Irish Creek - 710s Vermilion),706s 702T (706s Irish Creek) relay protection will be out of service for testing of new settings and logicand removal of RAS settings 17.38 Days
Continuous		  
26-Mar-18 09:00 30-Mar-18 18:00 SUNCOR Outage 29EDD1S452 (29EDD-1 Millennium) SF6 top up 4.38 Days
Continuous		  
26-Mar-18 09:00 06-Apr-18 18:00 SUNCOR TE 29PL9-16 (29EDD-1 Millennium - 29EDD-94 Voyageur) protection A 11.38 Days
Continuous		  
27-Mar-18 07:00 30-Jun-18 17:00 EPCOR TE Strathcona RTU/SCADA substation automation upgrade project, IP address update and cutover of RTU to new network 95.42 Days
Daily		  
27-Mar-18 07:00 30-Jun-18 17:00 EPCOR TE Strathcona substation automation upgrade project, IP address update and cutover of IED's to new network 95.42 Days
Daily		  
29-Mar-18 08:00 30-Mar-18 16:00 ATCO TE 710s Vermilion RTU/SCADA end to end alarm testing during 7L65 outage 1.33 Days
Continuous		  
31-Mar-18 08:00 01-Apr-18 18:00 ENMAX, ALTALINK Outage 36.1TR (ENMAX 36),36.3TR (ENMAX 36),7.84L (ENMAX 36 - ENMAX 7),36B138-36BT3 (ENMAX 36),36.81L (44s Bearspaw - ENMAX 36) switch maintenance and spring substation washing 1.42 Days
Continuous		  
31-Mar-18 08:00 01-Apr-18 18:00 ALTALINK IO 44s39 (36.81L) Enmax - Advice HV SW/MD maintenance 36.1MD, SW88, SW89, SW90, SW83. doble 36PT138-Z31- spring substation washing 1.42 Days
Daily		  
31-Mar-18 08:00 07-Apr-18 12:00 ENMAX Outage 33.2TR (ENMAX 33) install NGR 7.17 Days
Continuous		  
02-Apr-18 07:00 06-Apr-18 16:00 ENMAX RB 2.83L (ENMAX 2 - ENMAX 5 - ENMAX 13) tree trimming 4.38 Days
Daily		  
02-Apr-18 08:00 06-Apr-18 13:00 ALTALINK, ATCO Outage 69s T5 (69s North Barrhead),723L (69s North Barrhead - 723L133),7L230 (69s North Barrhead - 7L230 tap),69s 723E (69s North Barrhead),69s 230W (69s North Barrhead) replace 69s13 & 69s15, and 69s723W breaker fail protection 4.21 Days
Continuous		  
02-Apr-18 08:00 06-Apr-18 13:00 ATCO IO 7L230 (69s North Barrhead - 7L230 tap) Altalink work 4.21 Days
Continuous		  
02-Apr-18 08:00 06-Apr-18 17:00 ALTALINK TE 69S North Barrhead miscellaneous protection outages 4.38 Days
Daily		  
02-Apr-18 08:00 03-Apr-18 16:30 ALTALINK TE 216s Knightsbridge RTU/SCADA update configuration for new battery charger alarms 1.35 Days
Daily		  
02-Apr-18 09:00 03-Apr-18 17:00 ALTALINK TE 184s Petro-Canada Edmonton RTU/SCADA cutover controls/status, alarms and analogs 1.33 Days
Daily		  
02-Apr-18 09:00 11-Apr-18 09:00 ENMAX Outage ENMAX 25 B240-D131 (ENMAX 25),ENMAX 25 B240-D132 (ENMAX 25),ENMAX 25 1GSU-XF-001 (ENMAX 25) switch maintenance 9 Days
Continuous		  
02-Apr-18 09:00 05-Apr-18 15:00 SUNCOR TE Suncor RTU/SCADA data link to AESO over ICCP interruption 3.25 Days
Continuous		  
02-Apr-18 10:00 11-Apr-18 10:00 ENMAX Outage ENMAX 25 B240-D141 (ENMAX 25),ENMAX 25 B240-D140 (ENMAX 25),ENMAX 25 MD240-3GSU (ENMAX 25) testing 9 Days
Continuous		  
02-Apr-18 11:30 22-Apr-18 13:30 ALTALINK TE 184s T3 (184s Petro-Canada Edmonton) 'A' protection OOS to cutover low side CT 20.08 Days
Continuous		  
02-Apr-18 13:00 03-Apr-18 16:00 ALTALINK TE 185s Bretville RTU/SCADA add new alarm point for pilot wire fail 27 Hours
Daily		  
03-Apr-18 07:00 16-Apr-18 17:00 ALTALINK IO 7L117 (A710s - A706s) ATCO Info Atco maintenance (protection upgrade) 13.42 Days
Continuous		  
03-Apr-18 07:00 20-Apr-18 17:00 EPCOR Outage 805s T1 (805s Jasper),72JM18 (805s Jasper - Meadowlark),72JW19 (805s Jasper - Woodcroft) manhole resurfacing 17.42 Days
Continuous		  
03-Apr-18 07:00 03-Apr-18 18:00 ALTALINK Outage 729L (285s East Camrose - 542s Ervick) installing bird diverters 11 Hours
Daily		  
03-Apr-18 07:00 16-Apr-18 17:00 ATCO Outage 7L117 (706s Irish Creek - 710s Vermilion),710s 701 (710s Vermilion) protection upgrade 13.42 Days
Continuous		  
03-Apr-18 08:00 24-Apr-18 16:00 ALTALINK Outage 95s T2 (95s Imperial Oil Edmonton) customer switchgear change 21.33 Days
Continuous		  
03-Apr-18 08:00 06-Apr-18 16:00 ATCO TE 710s 703T (710s Vermilion),710s 702T (710s Vermilion) blocking 51/51N protection 3.33 Days
Continuous		  
03-Apr-18 08:00 10-Apr-18 16:00 ATCO TE 7L117 (706s Irish Creek - 710s Vermilion) remove DC power to protection relays 7.33 Days
Continuous		  
03-Apr-18 09:00 06-Apr-18 18:00 ALTALINK Outage 770L (254s Coaldale - 370s North Lethbridge) emergency repairs; damper repair 3.38 Days
Continuous		  
03-Apr-18 09:00 06-Apr-18 18:00 ALTALINK Outage 820AL (315s Chin Chute - 820L tap),820L (254s Coaldale - 820L tap),820L (67s Stirling - 820AL tap) emergency repairs; damper repair 3.38 Days
Continuous		  
03-Apr-18 10:00 03-Apr-18 12:00 Saskpower RB 9LS1M (840s McNeil - Swift Current) SaskPower will be performing switching at the Swift Current switching station 2 Hours
Continuous		  
03-Apr-18 10:00 03-Apr-18 14:00 ATCO TE 720s Wabasca RTU/SCADA,ATCO Radio Tower Aprisa radio link PM 4 Hours
Continuous		  
03-Apr-18 11:00 03-Apr-18 17:00 ALTALINK TE 288s Wolf Creek RTU/SCADA techs to perform the following work at site:Install new CF card and full site checkout 6 Hours
Daily		  
03-Apr-18 12:00 03-Apr-18 14:00 ALTALINK TE 184S Petro-Canada Edmonton re-instate 184s34 (bus tie breaker) CT contribution to 138kV bus 2 protection 2 Hours
Daily		  
03-Apr-18 12:00 09-Apr-18 07:00 ATCO, CNRL Outage 859s 701T (859s Primrose),859s 701 (859s Primrose),859s 704 (859s Primrose),859s701TD1 (859s Primrose),859s 52G (859s Primrose) maintenance 5.79 Days
Continuous		  
03-Apr-18 12:30 03-Apr-18 17:30 ALTALINK TE 65S High River perform relay setting changes 5 Hours
Daily		  
03-Apr-18 17:31 04-Apr-18 16:00 ALTALINK Outage 184s T1 (184s Petro-Canada Edmonton) protection wiring to breakers 22.48 Hours
Daily		  
04-Apr-18 07:00 04-Apr-18 18:00 ALTALINK Outage 730L (285s East Camrose - 730L62) install bird diverters 11 Hours
Continuous		  
04-Apr-18 07:00 11-Apr-18 17:00 ALTALINK IO 937L (102s-5s) Enmax - Advice relocate Enmax Owned Structure for Green LRT Project 7.42 Days
Continuous		  
04-Apr-18 07:00 11-Apr-18 17:00 ALTALINK IO 936L (102s-5s) Enmax - Advice relocate Enmax Owned Structure for Green LRT Project 7.42 Days
Continuous		  
04-Apr-18 08:00 04-Apr-18 18:00 Syncrude TE Syncrude loss of visibility ICCP server upgrade 10 Hours
Continuous		  
04-Apr-18 08:00 04-Apr-18 16:00 ATCO Outage EX1-01 (879s Scotford Upgrader - 402s Scotford Expansion) change contaminated insulators 8 Hours
Continuous		  
04-Apr-18 08:00 04-Apr-18 16:00 AIRLIQUIDE RB ALC03L (408s Air Liquide Scotford - 402s Scotford Expansion) change contaminated insulators on EX101L 8 Hours
Continuous		  
04-Apr-18 08:00 04-Apr-18 16:00 ALTALINK IO EX1-01L - ATCO Info Atco maintenance (To change contaminated insulators, on EX1-01L) 8 Hours
Daily		  
04-Apr-18 08:00 11-Apr-18 16:00 ALTALINK, ENMAX Outage 936L (102s Langdon - 5s East Calgary),937L (102s Langdon - 5s East Calgary) green Line LRT project 7.33 Days
Continuous		  
04-Apr-18 08:00 04-Apr-18 15:30 ALTALINK TE 69s North Barrhead RTU/SCADA update RTU configuration for new 69s723E breaker fail protection replacement 7.5 Hours
Daily		  
04-Apr-18 08:00 04-Apr-18 18:00 ALTALINK Outage 77s 552 (77s Sagitawah) install CT secondary ground on breaker 77s552 10 Hours
Daily		  
04-Apr-18 08:00 04-Apr-18 16:00 ENMAX TE 22.81L (ENMAX 22 - ENMAX 39),38.83L (ENMAX 39 - ENMAX 38) correct relay close logic settings 8 Hours
Continuous		  
04-Apr-18 08:00 13-Apr-18 16:00 ENMAX Outage 15.1TR (ENMAX 15) install PRD 9.33 Days
Continuous		  
04-Apr-18 08:00 04-Apr-18 17:00 ALTALINK TE 523s Bullshead RTU/SCADA check 880LR 9 Hours
Daily		  
04-Apr-18 09:00 04-Apr-18 17:00 ALTALINK TE 184s Petro-Canada Edmonton RTU/SCADA fix deficiency items found during acceptance 8 Hours
Daily		  
04-Apr-18 09:00 04-Apr-18 17:00 ALTALINK TE 63s Red Deer RTU/SCADA troubleshoot COMM/RTU issues with 912L A & B protections 8 Hours
Daily		  
04-Apr-18 09:00 04-Apr-18 17:00 ALTALINK TE 63S Red Deer troubleshoot COMM/RTU protection, alarming, and perform relay setting change 8 Hours
Daily		  
04-Apr-18 09:30 05-Apr-18 17:30 ALTALINK TE 77S Sagitawah,825L (484s Millar Western - 77s Sagitawah),938L (77s Sagitawah - 809s Louise Creek),939L (77s Sagitawah - 809s Louise Creek) maintenance on B Protection for lines and sync check relays for breakers one at a time 1.33 Days
Daily		  
04-Apr-18 09:30 04-Apr-18 17:30 ALTALINK TE 180L (255s Vulcan - 928s East Stavely) settings changes to the 180L A21/79/L4 SEL311C and 180L B21/L4 URD60 8 Hours
Daily		  
04-Apr-18 09:30 04-Apr-18 17:00 ALTALINK TE 388s Riverside RTU/SCADA complete outstanding SCADA deficiencies 7.5 Hours
Daily		  
04-Apr-18 10:00 04-Apr-18 14:00 ALTALINK TE 59s Peigan RTU/SCADA update configuration for breaker maintenance switches 4 Hours
Daily		  
04-Apr-18 10:00 04-Apr-18 17:00 ALTALINK TE AltaLink Radio Tower check levels and realign dish at 9243R Barons and/or 9282R Buffalo Hill 7 Hours
Daily		  
04-Apr-18 10:00 12-Apr-18 18:00 Saskpower Outage Sask Power SW903T attach new 230 kV bus to 911C isolator, primary injections and breaker interlocks 8.33 Days
Continuous		 AB-SK
04-Apr-18 13:00 06-Apr-18 13:00 ATCO TE 840s McNeill Station RTU/SCADA update HMI 2 Days
Continuous		  
04-Apr-18 16:00 22-Apr-18 08:00 ALTALINK Outage 184s T1 (184s Petro-Canada Edmonton),184s T2 (184s Petro-Canada Edmonton),705L (184s Petro-Canada Edmonton - 216s Knightsbridge),184s Petro-Canada Edmonton 138 kV Bus 2 move metering, telecom to new control building and bus and line maintenance 17.67 Days
Continuous		  
05-Apr-18 08:30 05-Apr-18 16:30 ALTALINK TE 87s Gaetz RTU/SCADA update supervisory configuration 8 Hours
Daily		  
05-Apr-18 09:00 05-Apr-18 16:00 ALTALINK TE 227s Cutting Lake RTU/SCADA,339s Duchess RTU/SCADA,AltaLink Radio Tower MPLS upgrade nodes at 9028R West Brooks 7 Hours
Daily		  
05-Apr-18 09:00 05-Apr-18 16:00 ALTALINK TE 28s West Brooks RTU/SCADA,AltaLink Radio Tower upgrading MPLS nodes at 28s West Brooks 7 Hours
Daily		  
05-Apr-18 09:00 05-Apr-18 16:00 ATCO TE 7L587 (826s Marguerite Lake - 822s Wolf Lake) test 21B relay 7 Hours
Continuous		  
05-Apr-18 09:00 06-Apr-18 18:00 ENMAX Outage 25B240-D132 (ENMAX 25),ENMAX 25 B240-D131 (ENMAX 25),ENMAX 25 1GSU-XF-001 (ENMAX 25) switch repair and testing 1.38 Days
Continuous		  
05-Apr-18 09:00 05-Apr-18 17:30 ALTALINK RB 1201L (520s Bennett - BCH Cranbrook) bird marker corona testing 8.5 Hours
Daily		  
05-Apr-18 09:00 06-Apr-18 17:00 ALTALINK TE 184s Petro-Canada Edmonton RTU/SCADA cutover controls/status, alarms and analogs 1.33 Days
Continuous		  
05-Apr-18 09:30 22-Apr-18 16:30 ALTALINK TE 705L (184s Petro-Canada Edmonton - 216s Knightsbridge),865L (216s Knightsbridge - 38s East Edmonton) isolate L16 TPR Ch1 and Ch2 for work at 184s Petro-Canada Edmonton 17.29 Days
Daily		  
05-Apr-18 10:00 05-Apr-18 16:00 ALTALINK TE 542s Ervick RTU/SCADA routine maintenance on single channel MDS radio 6 Hours
Daily		  
06-Apr-18 07:00 10-Apr-18 18:00 ALTALINK Outage 174L (197s Bardo - 289s Saunders Lake) replace two structures for road clearance and installing marker cones 4.46 Days
Continuous		  
06-Apr-18 07:00 06-Apr-18 18:00 ALTALINK Outage 799L (443s South Mayerthorpe - 235s Entwistle) urgent repair to damaged structures 11 Hours
Continuous		  
06-Apr-18 08:00 16-Apr-18 18:00 Syncrude Outage D05 T1 (D05 Syncrude) 5 yr PM 10.42 Days
Continuous		  
06-Apr-18 10:00 06-Apr-18 12:00 ATCO IO 840s 901 (840s McNeill) stand-off on the S1M line for SaskPower work 2 Hours
Continuous		  

Prepared On:   2018-03-29   3:54:26 PM

This document and the information contained herein are based upon information and data which by their nature contain a degree of uncertainty and are subject to change. In addition, this document may contain information and data from public sources and/or third parties, which have been assumed to be accurate and complete and have not been verified. Accordingly, the Independent System Operator, operating as the Alberta Electric System Operator (the "AESO") makes no warranty, representation or guarantee, express or implied, with respect to this document or the information contained herein, including, but not limited to, any warranty, representation or guarantee of accuracy, completeness, timeliness, reliability, availability, absence of computer virus, non- infringement, merchantability or suitability for any purpose. Under no circumstances will the AESO, its members, officers, employees, contractors or agents, or any of their respective affiliates, be liable for any errors or omissions in, or any losses, damages or claims whatsoever, whether in contract, tort or otherwise, arising from use of or reliance upon, this document or any information contained herein.

© 2009 Alberta Electric System Operator. All rights reserved