Proposed Project Schedule the environmental, engineering, land-use, social and economic variables. Transmission Line Substation: The substation is called West Brooks 28S. September-December 2008 Consultation with stakeholders The substation upgrades include replacing existing transformers January 2009 Application filing to the and upgrading the existing line terminations at the substation. Stakeholder Information Brochure Utilities Commission (AUC) All work to be done is within land owned by AltaLink. Mid August 2009 Construction start, pending Brooks transmission line development approval from the AUC Environmental and land-use considerations & substation upgrade December 2009 In-Service Date AltaLink is committed to reducing environmental and land-use impacts. Alberta Environment’s guidelines will be followed during Substation Upgrade the preparation and construction of the substation. September-December 2008 Notification to stakeholders AltaLink will ensure its contractors use environmentally appropriate An AltaLink representative will be contacting all landowners within January 2009 Application filing to the Alberta The proposed project techniques to protect topsoil and subsoil structures and use 800 metres of the proposed transmission line. AltaLink is also Utilities Commission (AUC) appropriate equipment to minimize compaction and rutting. AltaLink has been directed by the Alberta Electric System Operator holding an open house to discuss the project, gather feedback March 2009 Construction start, pending (AESO) to build a transmission line and upgrade an existing and address questions and concerns. approval from the AUC substation in the Brooks area. AltaLink is the Transmission Facility For more information Date: October 22, 2008 May 2009 In-Service Date Owner (TFO) in the area and is responsible for finding a suitable Over the next few weeks an AltaLink representative will be location for the proposed transmission line. Time: 2 – 8 p.m. contacting landowners within 800 metres (one half mile) Place: Heritage Inn Proposed project details of the proposed transmission line. Your comments will be How am I affected? 1217 2nd Street West incorporated into AltaLink’s facility application to the Alberta Transmission line: The proposed transmission line is called 666L. Advertisements will be placed in local newspapers notifying Utilities Commission (AUC). You are receiving this brochure because you are a landowner It is approximately 12.2 kilometres of single pole, single circuit, or resident located near the proposed project. Please refer residents of the open house. AltaLink would appreciate the opportunity to respond to your 138 kV line connecting the West Brooks 28S substation to the to the map found in this package to see where the project questions and concerns prior to filing the application. existing 100L transmission line and the Tilley 498S substation. is relative to your property. Why is this project needed? For the most part, the transmission line would be located one You can also contact us by calling 1-877-267-1453 or e-mail AltaLink is committed to sharing information about its projects and The AESO has completed a development plan for transmission metre within road allowance boundaries. [email protected]. AltaLink will be available for working with the public to ensure stakeholder input and concerns reinforcement to meet the urgent needs of customer load growth on-going discussions about this project. Please see the image to the left to view are heard, understood and addressed. Typical questions and in southeast Alberta. The Brooks transmission line development the proposed structure type. This brochure can also be found at the AltaLink website answers regarding transmission lines can be found in the brochures and substation upgrade are part of this plan and will help meet AltaLink has identified a possible location for the www.altalink.ca. included with this package. the power needs in the area. proposed transmission line (666L) as indicated If you have questions regarding the Alberta Electric System Operator on the map included with this brochure. (AESO) process, please contact the AESO at 1-888-866-2959. Siting considerations for transmission lines If you have any questions regarding the Alberta Utilities Commission vary from project to project. The proposed transmission line Application process, please contact the AUC at (780) 427-4903. location in this brochure is the result of AltaLink’s assessment of

Understanding Transmission

Key players Glossary of terms Substation: Substations are the connection point between Who is AltaLink? high-voltage transmission lines and the lower voltage distribution AltaLink is an independent company that owns and operates lines found in your community. When power passes through approximately 11,600 kilometres of transmission lines and a substation its voltage is reduced so it can be transported to you. approximately 260 substations. We provide electric service to more than 85 per cent of Albertans and own and operate the majority Transmission: Transmission lines connect the power produced of the transmission system in central and southern Alberta. at generating facilities to substations. Over long distances it is most effective to transport electricity at high voltages. AltaLink’s lines Who is the Alberta Electric System Operator (AESO)? range from 69 to 500 kV. The AESO is the independent, not-for-profit entity responsible Red deer Kilovolt (kV): A kilovolt is equal to one thousand volts. This unit for the safe, reliable and economic planning and operation of the of measurement is most commonly used when describing Alberta Interconnected Electric System. The AESO determines transmission and distribution lines. Distribution and transmission the need for transmission projects in Alberta. lines in Alberta carry between 4 kV and 500 kV (500,000 volts). Who is the Alberta Utilities Commission (AUC)? Circuit: A circuit is a group of wires electricity flows through. AltaLink LETHBRIDGE The AUC is an independent, quasi-judicial agency of the lines can be single or double circuit. A single circuit line has three Government of Alberta that is responsible to ensure that the wires and a double circuit line has six. A transmission line may also delivery of Alberta’s utility services take place in a manner that have one or two shield wires on the top of the structures to protect is fair, responsible and in the public interest. AltaLink must file the line from lightning. an application with the AUC to obtain approval to construct The information you are providing to AltaLink is required by the Alberta Utilities Commission (AUC) as part of the Participant Involvement Program and public consultation requirements Transformer: A transformer is the device in a substation that steps and may be used by AltaLink in making an application to the AUC for the Transmission Project named in this document. This information may be disclosed to the AUC and, as a result, may and operate any transmission project. become public. voltage up or down. AltaLink will not rent or sell your personal information to any third party but may share your information with other persons, and in particular, may provide your personal information to the Alberta Electric System Operator or other electric facility owners, who reasonably require the use of your personal information for similar Participant Involvement Programs related to the same Termination: A termination is the point where a power line ends Transmission Project. If the Transmission Project is approved, then AltaLink may also use the information collected to manage the construction or future maintenance and operation of the and connects to a substation. Transmission Project. Information held by AltaLink will be protected in accordance with AltaLink’s privacy policies. If you have any questions, please call 1-877-267-1453.

AltaLink Stakeholder Information September 9, 2008 www.altalink.ca