UPDATE Fall 2012

South and West of Transmission System Development

Project Update The Electric System Operator (AESO) has updated information on the South and West Edmonton project.

The AESO has identified the need The potential transmission system to reinforce the transmission system developments now include: Open Houses south and west of Edmonton to meet n a new 240/138 kV substation just the growing demand for electricity from north of Leduc You’re invited…we’re listening residential, commercial and industrial n a new 240/138 kV substation either The AESO invites you to join us in an growth in the area. north or south of Stony Plain upcoming Open House to discuss the In Fall 2011, the AESO held a series n new 138 kV and 240 kV transmission need for transmission development in of public open houses to discuss the lines around Stony Plain and Spruce the area south and west of Edmonton need for the project with stakeholders. Grove, and south and east of Edmonton and to discuss refinements to these potential developments. Since that time, we have completed n potential modifications to the further analysis that refined the Acheson 305S, Cooking Lake 522S, potential transmission system Stony Plain 434S, Spruce Grove 595S, n Stony Plain developments required. Blackmud 155S, Ellerslie 89S, Leduc Monday, September 24 325S and Nisku 149S substations. 4 to 8 p.m. Stony Plain Community Centre

Approximate areas where potential transmission system developments may occur. n Spruce Grove 8 2 Tuesday, September 25 Bon Accord Bruderheim 4 to 8 p.m. 642 Gibbons 29 Melcor Hall, Pioneer Centre Sandy Lake Morinville Lamont n Devon 37 Fort Wednesday, September 26 15 Saskatchewan 4 to 8 p.m.

43 St. Albert Big Lake Braun Hall, Community Centre 16 16 16 Sherwood n Edmonton Stony Park Monday, October 1 Plain Spruce Grove 4 to 8 p.m. 627 Cooking Lake

0 South Hampton Inn North 60

77 EDMONTON Saskatchewan River n Leduc Tuesday, October 2 Devon Beaumont 4 to 8 p.m. 39 Miquelon Lakes Royal Canadian Legion Calmar Leduc 2 (Branch #108)

A

78 5 7 616

9 Please join us at any of these events. 7 616 Millet 616 Coal Lake AESO staff will be on hand to discuss 21 Camrose

616 2 Bittern Lake the need for this project and address 26 13 any questions or concerns. Proposed Development Area 13 Wetaskiwin After receiving stakeholder input, the AESO will prepare and file a Needs Identification The map indicates the approximate area where the need for transmission development has been identified. Document (NID) with the Alberta Utilities The Transmission Facility Owner will propose specific substation sites and transmission line routes that may be located inside or outside the area shown. Commission (AUC) for approval. Leduc 325S Substation and Other Projects in the Area Transmission Line Development Commercial, residential and industrial The following is a list of other projects in your area. development in and around the City of Lake Wabamun and Edmonton Region to serve increasing electrical demand Leduc is increasing demand for electricity. 240 kV Reinforcement in Edmonton and the northeast region. Therefore, a new transmission line and substation are required. The AESO has identified the need for These developments include rebuilding system reinforcement to the 240 kV system existing 240 kV transmission lines, EPCOR Poundmaker 240/25 kV in the Edmonton area to relieve constraints building a new 240 kV transmission line, Substation and modifying existing substations. on the existing transmission system and Electricity demand growth in northwest Edmonton has determined the need To Learn More About the Regulatory Process: for a new substation connecting into Please contact the Alberta Utilities Commission (AUC): existing transmission and distribution Web: www.auc.ab.ca lines in the area. EMAIL: [email protected] Spruce Grove Substation PHONE: 780-427-4903 (dial 310-0000 before the 10-digit number to be connected toll-free from anywhere in Alberta) Electricity demand growth in the Spruce Grove area has determined the need for a new substation connecting into Transmission projects follow the Regulatory Process illustrated below. existing transmission and distribution lines in the area. The Regulatory Process For More AESO Process Alberta Utilities Commission Process Information AESO Identifies Need for Transmission Development The AESO appreciates your views on the need for transmission system development and your comments AESO Consultation are encouraged. If you have any (Mailouts, Open Houses, Meetings) questions or suggestions regarding the need for the proposed transmission system development AESO Applies to AUC Approval of Need in the area south and west of for Approval of Need* Edmonton or the AESO’s application regarding this need, please attend one of the upcoming open houses AESO directs the TFO to file Facility Application or contact: Marina Lakhani AESO Stakeholder Relations TFO Process EMAIL: [email protected] TFO Consultation, Detailed Design, Routing and Siting PHONE: 1-888-866-2959 ADDRESS: TFO Applies to the AUC Approval of Siting and 2500, 330 – 5th Avenue SW for Approval of Siting and Routing, and to Construct Routing, and to Construct Calgary, Alberta T2P 0L4 and Operate and Operate To learn more about the complex electricity industry and its * Need for specified Critical Transmission Infrastructure projects are approved importance to our quality of life by the Lieutenant Governor In Council (LGIC) and the province’s economic well-being, please visit www.poweringalberta.com

REV 0912