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August 21, 2013 Cherhill Transformer Addition Notice of project approval Thank you for your ongoing participation in the Cherhill Transformer Addition project. The Alberta Utilities Commission (AUC) approved this project for construction on June 11, 2013. The project The approved project involves adding new equipment to the Cherhill Substation, called 338S. The substation is located at NW-26-55-4-W5, approximately 25 kilometres (15 miles) north of Wabamun. No new land will be required for the additional equipment. The project includes: • • • adding one new transformer. A transformer can either step down the voltage in a substation so power can be distributed safely to your community through distribution lines or step up the voltage so power can be transmitted through transmission lines. adding one new circuit breaker. A circuit breaker is an electrical switch inside a substation that protects substation equipment and helps to ensure the safety and reliability of the electric system. adding one new switchgear building. A switchgear building is required to house electrical equipment and protect it from potential weather damage, helping to ensure a reliable source of electricity is available for years to come. Alberta’s population has grown significantly in recent years and the majority of the transmission system has not been upgraded to keep pace with the growth. Transmission system reinforcements are required to make sure residents continue to have a reliable supply of electricity for years to come. Next steps Construction began in June 2013 and we anticipate it will take approximately five months to complete. Where construction activities are required to take place on private property, we will contact you in advance to discuss the specific dates and times we will require access to your property. Depending on where you are in relation to the project, you may see or hear: • • noise and construction crews work at an existing substation AUC approval When the AUC approves a transmission project, it grants AltaLink Permits and Licences. The Permits and Licences for this project can be viewed on the AUC website at: http://www.auc.ab.ca/applications/orders/utility-orders/Utility%20Orders/2013/U2013-281.pdf Contact us We are available to gather any further input you have or address any questions or concerns. Please contact us at [email protected] or 1-877-267-1453. Further information about this project and maps are available on www.altalink.ca/regionalprojects. You will find the project in the list in alphabetical order. Sincerely, Regan Smith Manager, Consultation