December 2013

South and West of Transmission System Development

642 Gibbons Bruderheim

29

28 28

2 Morinville 37

ApproximateFort areas where 43 Why is development 43 15 St. Albert potentialSaskatch transmissionewan system needed? developments21 may occur.

In 2011, the Electric System Operator 16 16 (AESO) identified the need to reinforce the 21 Sherwood 6 Park transmission system south and west of 628 Stony Spruce EDMONTON

Edmonton to meet the growing demand for Plain Grove 628 14 electricity from residential, commercial and 627 216

industrial growth in the area. Transmission 0 60 system developments are required to ensure 77

7 the system has sufficient capacity to meet 70 this forecasted growth. Devon Beaumont

The AESO filed the South and West Calmar FiFirrsst NNaations 39 39 Development Area

Edmonton Area Transmission Reinforcement 1

Leedduuc 2

5 5

2A

8 8 79

Needs Identification Document (NID) with 79 2

77 77 the Alberta Utilities Commission (AUC) on The map indicates the approximate area where the need for transmission development has been identified. The transmission facilities owner will propose specific substation sites and transmission line routes that December 14, 2012, by Application No. may be located inside or outside the area shown. 1609123. In preparing the NID, information was mailed to stakeholders in newsletters WHO IS THE AESO? sent throughout the area from 2011 to 2013. Alberta’s transmission system, sometimes siting and routing, constructing, operating Also, the AESO sought stakeholder input referred to as the Alberta Interconnected and maintaining the associated transmission at ten open houses from 2011 to 2012. Electric System (AIES), is planned and facilities. The AESO has directed AltaLink The AUC will be holding a public hearing operated by the AESO. The transmission to provide information to stakeholders regarding the AESO’s NID application system comprises the high-voltage lines, on this need and to file a facility proposal beginning at 9 a.m. on March 3, 2014 at towers and equipment (generally 69 kV application with the AUC which will include the AUC’s office in Edmonton. For more and above) that transmit electricity from a detailed description and location of the information on the public hearing, please generators to lower voltage systems that proposed transmission development. look for Application No. 1609123 on the distribute electricity to cities, towns, rural AUC’s website at www.auc.ab.ca areas and large industrial customers. We want to hear from you The AESO’s role is to maintain safe, reliable The AESO appreciates your views and economic operation of the AIES. The on the need for transmission system Proposed transmission AESO’s planning responsibility includes development and your comments are developments determining the need for transmission encouraged. If you have any questions system development and the manner in The proposed transmission system or suggestions regarding the need which that need is met. The AESO is also developments now include: for the proposed transmission system mandated to facilitate the interconnection n A new 240/138 kV substation of qualified market participants to the development in the area south and west just north of Leduc AIES. The AESO is regulated by the of Edmonton or the AESO’s application n A new 240/138 kV substation AUC and must apply to the AUC for regarding this need, please contact: south of Stony Plain approval of its NID. Megan Harris n New 138 kV and 240 kV transmission AESO Stakeholder Relations lines around Stony Plain and HOW IS ALTALINK Spruce Grove, and south and MANAGEMENT LTD. INVOLVED? EMAIL: [email protected] east of Edmonton AltaLink Management Ltd. (AltaLink) is the PHONE: 1-888-866-2959 n Potential modifications to the transmission facilities owner (TFO) in the ADDRESS: Acheson 305S, Cooking Lake 522S, area south and west of Edmonton. While 2500, 330 – 5th Avenue SW Leduc 325S, Nisku 149S and Stony the AESO is responsible for identifying , Alberta T2P 0L4 Plain 434S substations. that transmission system development is needed, AltaLink is responsible for detailed REV 1213