PROJECT UPDATE

June 2019

CENTRAL EAST TRANSFER OUT TRANSMISSION PROJECT

In January 2019, ATCO Electric Ltd. (ATCO) distributed project information about the Central East Transfer Out Transmission Project to landholders Project Details in the vicinity of the planned transmission line and invited feedback on our preliminary routes. We also held a series of open houses in February ATCO Electric Ltd. (ATCO) and AltaLink were for people to learn more about the Project. both directed by the Electric System Since then, we have been meeting with landholders in the vicinity of the Operator (AESO) to develop portions of the routes under consideration. Central East Transfer Out Transmission Project.

To date, we have had over 500 conversations with landholders about the ATCO is proposing to add two staged Project. We would like to thank everyone who provided their feedback. 240-kilovolt transmission lines between the existing Tinchebray substation near the Village of Halkirk and the service territory boundary near the Village of Alix and the Village of Nevis. Routing Update This is to reinforce and upgrade the transfer out capability of the transmission system in The input we received during the first round of consultation has been the central east area to the rest of Alberta’s compiled and examined. This input has been used in combination with Interconnected Electric System. other available information to refine the route options and reduce the overall impact of the transmission line. An updated Reference Map ATCO will also require alterations to the showing the selected routes is enclosed. existing Tinchebray 972S substation. In ATCO’s service territory, the total line length will be You continue to have the opportunity to provide your input on the approximately 160 kilometres (km) long. Project. Please contact us at 1 855 420 5775 to share your thoughts.

If you received this package in the mail, updated Route Mosaic Maps are enclosed showing the selected route options in relation to your property. Rejected options — routes no longer considered — are also Next Steps shown. Selected Route Mosaic Maps for the entire length of the Project We are in the process of providing additional are available at www.ATCO.com (click on “Projects”) or can be mailed details on the updated selected routes and on to you upon request. the typical structure being considered for the Project.

Route refinements at this stage will typically involve localized adjustments to the line location in response to site-specific concerns and constraints.

For more information on route selection, please see the inside of this newsletter. Selected Routes Your Input

In this Project Update, you will find information on the All transmission line projects have impacts. Some can be routes selected for further consideration. The Update also mitigated while others cannot. Our goal is to find the location contains information on the routes that have been removed for the transmission line that will have the least overall impact, from consideration. Stakeholder consultation efforts did however, we recognize that there are impacts cannot be identify a few new route segments that have been added for mitigated. Your input is very important when making these consideration. The routes are shown on the ATCO Reference decisions. Map. ATCO and AltaLink coordinated our selected routes at the The top concerns raised include: service territory boundary to ensure alignment. • Agricultural operations impacts Several routes are shown on the maps, however only one route • Following existing developments will be constructed. • Visual impacts • Proximity to residences

Additionally, concerns related to wildfires and crop diseases If you are not in the direct vicinity of the have also been identified. selected routes, you will not be contacted during our second round of personal consultations. Please If you have any further input to provide or require further check the enclosed maps to verify the location of information, please contact us. your property in relation to the selected routes. During consultation conversations there were inquiries about an opportunity to re-use existing 9L20 transmission Parties on rejected routes will be removed from our line structures for this Project. ATCO evaluated the existing project mailing list unless they request otherwise. transmission line; unfortunately, those existing structures are not able to support the additional conductor wires required for this Project.

Stakeholders also inquired if other existing substations could be considered for the eastern termination for this Project. ATCO is working with the AESO to re-assess feasibility. If a different eastern termination is considered we will update Route Selection stakeholders with more information.

The selected routes were chosen based on consultation Whenever possible, consideration is given to routing new feedback and combined with other available information transmission lines along existing linear features, such as quarter to refine the route options in an effort to reduce potential section lines, roads, and other powerlines. impacts. In some locations, preliminary route options were The consultation process for this project is ongoing. That dropped from further consideration. In other locations, new means we have yet to determine the preferred route for the options were developed as a result of your feedback. transmission line, and in some areas we may decide to propose Consultation feedback is not the only factor that must be both preferred and alternative route options to the AUC in our considered during the route selection process. We must also application. Although multiple route options may be proposed, consider a range of important factors, including proximity only one route will be built. to residences, environmentally sensitive areas, wetlands, Project updates are available at existing infrastructure (such as other transmission lines, roads, www.ATCO.com (click on “Projects”). Please contact us if well sites and pipelines), planned developments, agricultural you have questions, concerns or would like to request a operations, visual factors and construction requirements. personal consultation.

THE SCHEDULE

We begin sharing We gather your input. ATCO submits an The AUC reviews If approved, information about the Based on this input and application to the the application by way construction of project to determine other factors, route AUC to build the of a public process. the new facility the best options. option(s) are selected. proposed facility. begins.

PUBLIC CONSULTATION is a continuous process that occurs throughout the life of the project. Project Update

The Alberta Electric System Operator (AESO) manages the AESO has continued to monitor the need in the area and the Alberta electric system and has identified the need for this possibility that generation milestones can change over time. Project to enhance the reliability of the transmission system in As a result, they have now asked us to consider including two the area. When we started consulting on this Project in January potential options in the application that we file for this Project. 2019, it was proposed to be staged to align with generation Option 1 aligns with the generation milestones already milestones in the area so that additional transmission capacity identified as 2023 for the first circuit and 2027-2029 for the is built as generation targets are met. The AESO initially asked second circuit. Option 2 plans for the scenario that the first ATCO to plan for two new circuits, with one needed by 2023 circuit is still needed as early as 2023 but the need for the and the second by 2027-2029. second circuit is delayed beyond 2029. In this circumstance, We included our proposed options to meet this need in the the second circuit would be filed in the future as a standalone newsletter that we mailed in January 2019. Since then, the Facility Application.

FIRST STAGE SECOND STAGE PROPOSED SOLUTION (BY 2023) (BY 2027-2029)

Option 1 One double circuit transmission One line built but only The second circuit will be line one circuit will be energized Originally included energized in this project Selected to move forward

Two single circuit transmission One line built The second line will be built on an lines – parallel alignments alignment parallel to the first line Removed from consideration

Option 2 One single circuit transmission One line built The second circuit (delayed New line beyond 2029) would be filed in the future as a stand-alone New proposed option Facility Application

Option 1 — Originally included in this project Option 2 — New

Based on stakeholder feedback, engineering, field studies and We were able to use the information gathered so far on a cost analysis we determined that the lowest overall impact this Project to help us determine our proposed routes and way to meet the need for this option is with one double circuit structure types to address the first stage of this scenario. transmission line instead of two single circuit transmission ATCO plans to use single circuit wood H-Frame structure in lines. When compared to the two single circuit options, the this scenario and would use the same proposed alignments as double circuit option had greater stakeholder support as it the double circuit structures proposed for Option 1. minimizes the footprint of the project and the disturbance On the following pages you will find details about the routes associated with building two separate lines. and structures proposed for each option and how you can provide your input. THE SCHEDULE

construction begins facilities completed right-of-way for second stage and operating project consultation project consultation acquisition AUC process notification begins update continues process begins continues 2027 - 2029

JUNE 2019 DECEMBER 2019 2021-2023 JANUARY 2019 application filed with the if approval is first stage facilities Alberta Utilities Commission granted by the AUC, completed and (AUC) construction begins operating What It Will Look Like

In the January 2019 project information, ATCO indicated that The single circuit H-frame structure will hold one transmission four different structures were being considered for the Project. circuit. This structure type will meet AESO’s requested Option 2. With further assessment of the design required, we have Non-typical structures with wider bases and/or guy wires determined that two of the structures will meet the options and anchors may be required where the line ends or bends, that AESO has requested ATCO to prepare. at corners and to go over and around obstacles. In all cases, The double circuit steel mono-pole structure will hold two minimum clearance will meet or exceed the requirements of transmission circuits. This structure will meet the current provincial safety regulations. Project requirement requested by the AESO as Option 1.

Double Circuit Steel Mono-Pole Single Circuit H-Frame Structure • Typical Structure Height 27 m • Typical Structure Height 20 m • Structure Height Range 19 to 27 m • Structure Height Range 16 to 27 m • Typical Right-of-Way Width 24 m • Typical Right-of-Way Width 34 m • Typical Distance between Structures 200 m • Typical Distance between Structures 211 m • May require guy wires at corners and/or • May require guy wires at corners and/or turns turns

* Final Design may vary

The Right-of-Way

The term right-of-way refers to the area a transmission line of-way will be slightly narrower when following a road. uses including areas on either side of the line. Rights-of-way Once a proposed route has been submitted to the AUC, ATCO must have a minimum width to ensure safety prevent fire from begins obtaining agreements with landholders to acquire the falling trees and ongoing access for maintenance. For safety right-of-way. reasons, some general restrictions on the use of the land in the direct vicinity of the transmission line may apply. These include Once the transmission line is constructed, landholders may setbacks for development. The typical right-of-way for this continue to use the right-of-way, subject to the terms of Project is variable and can range from 24 m to 34 m. The right- agreements made between the landholder and ATCO. )"

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DRAFT If you own or occupy land in the vicinityDRAFT of these access trails and temporary workspaces then your package will also contain one orATCO more 240 kVdetailed Transmission Facility Line Selected Detail Routes Maps. Existing 144 kV Transmission Line ATCO 240 kV Transmission Line Selected Routes Existing 144 kV Transmission Line AltaLink 240 kV Transmission Line Selected Routes Existing 72 kV Transmission Line AltaLink 240 kV Transmission Line Selected Routes Existing 72 kV Transmission Line Arrangements for access trails and temporary workspace will be discussed and negotiated 40-22-4 40-21-4 40-20-4 Proposed ROW Railway µ 40-19-4 40-18-4 40-17-4 40-16-4 40-22-4 40-21-4 40-15-4 40-20-4 40-19-4 ")21 601 Proposed ROW Railway withµ landholders individually. Actual dimensionsProposed Access of these Trail features may40-18-4 vary with40-17-4Road final plans.40-16-4 UV 40-15-4 ")56 ")21 UV601 0 50 100 150 Meters 601 Proposed Access Trail Road Proposed Third Party Access Primary Highway UV ")56 0 50 100 150 Meters 601 Central East Transfer Out Project UV 0 100 200 300 400 500 Feet Proposed Third Party Access Primary Highway Proposed Temporary Workspace Secondary Highway UV850 UV852 UV855 Central East Transfer Out Project39-22-4 39-21-4 39-20-4 Proposed Temporary Workspace Secondary Highway 0 100 200 300 400 500 Feet Proposed Turn Around Current Disposition 855 39-19-4 39-18-4 39-17-4 UV850 UV852 UV 835 39-16-4 39-15-4 39-22-4 UV 39-21-4)" Residence39-20-4 39-19-4 Existing Easement R/W NOTES: FACILITY)" DETAIL Proposed Turn Around Current Disposition 39-18-4 39-17-4 39-16-4 - Only facilities in the vicinity of the project are shown. UV835 39-15-4 ")11 ") ")12 - Several routes are shown, but only one will be built. 12 MAP 30 of 131 )" Residence Existing Easement R/W NOTES: Existing Substation Footprint Private Wells and Access FACILITY DETAIL ")21 - Only facilities in the vicinity of the project are shown. ")11 STETTLER ") ")12 Existing 500 kV Transmission")12 Line A! Surface Well Site 56 Existing Substation Footprint Private Wells and Access - Several routes are shown, but only one will be built. MAP 57 of 131 UV850 ")12 ")21 38-22-4 38-21-4 ExistingSTETTLER 240 kV Transmission") Line AltaLink / ATCO Service Territory Boundary 38-20-4 38-19-4 38-18-4 38-17-4 Existing 500 kV Transmission Line A! Surface Well Site 56 38-16-4 38-15-4 UV850 ")12 This map is the property of ATCO. This map is not INDEX MAP June 2019 38-22-4 CREDIT38-21-4 NOTES 38-20-4 38-19-4 intended to be used in place of Alberta One Call. Existing 240 kV Transmission Line AltaLink / ATCO Service Territory Boundary Alberta Data Partnerships, Government of Alberta, Government of Canada,38-18-4 38-17-4 38-16-4 38-15-4 IHS Markit, AltaLink, ATCO, Valtus Imagery Services 2015 Always practice extreme caution when near power lines! RS-CETO - N2 - 03 - 30 This map is the property of ATCO. This map is not INDEX MAP CREDIT NOTES intended to be used in place of Alberta One Call. June 2019 Alberta Data Partnerships, Government of Alberta, Government of Canada, Cartography By: RDH Approved By: LJ 1:5,000 at Ledger Projection: NAD 1983 UTM Zone 12N File Name: CETO_FacilityDetailMap IHS Markit, AltaLink, ATCO, Valtus Imagery Services 2015 Always practice extreme caution when near power lines! RS-CETO - N2 - 03 - 57

Cartography By: RDH Approved By: LJ 1:5,000 at Ledger Projection: NAD 1983 UTM Zone 12N File Name: CETO_FacilityDetailMap

Cross-country alignment with farming through the right-of-way Unloading structures from trailer Tinchebray Substation

ATCO is planning on altering the existing Tinchebray Substation. The substation is located approximately 13 kilometres (km) northeast of the Village of Halkirk in northeast 26-39-15 W4M. The substation is planned to undergo the following alterations: • Add two new 240-kV circuit breakers • Add other minor substation equipment • Extend the substation fence east by approximately 24 m to house the new equipment (right side of the substation in the photo)

Maintenance and Operation of Electrical Facilities

For safe electric facilities and reliable service to customers, ATCO works diligently to maintain and operate our electrical facilities. We use multiple strategies to meet this objective, including: • Compiling with the Safety Codes Act, and Canadian Standards Association rules and standards • Managing vegetation that could be in proximity to the conductor wires • Enhancing communication systems while operating the electrical facilities • Office throughout the service territory allowing us to have operations employees near the facilities

The electrical facilities can be affected by the environment, such as line contacts, extreme weather (wind, lightning, fire) or wildlife interactions. ATCO monitors the electrical system 24 hours a day. If there was an issue or emergency situation on or near an electrical facility, ATCO works closely with the local emergency services to address the situation that arose and restore electricity to customers as soon as possible.

Environmental Surveys and Assessments

ATCO is undertaking environmental and wildlife surveys and assessments to understand the presence of species in the project area. ATCO has retained an environmental consultant to assist us with the environmental surveys and assessments of the current project routes. This work has started and will continue throughout 2019 and into 2020.

We are contacting landowners to discuss access to their land for the assessments. Open Houses

ATCO is planning two open houses to share the details on the selected LOCAL BENEFITS routes being considered for the Project. The open houses are from 4 pm to 8 pm. Your feedback on the Project is important to us. We encourage you to Upgrading the transmission system in your learn more or provide your input by attending one of our open houses, visiting our website or by contacting us. area will: • Improve access to safe, secure and Halkirk — Tuesday, July 9, 2019 reliable power Halkirk Community Hall 111 Main Street, Halkirk • Allow future businesses to connect to Alberta’s electric system Stettler — Wednesday, July 10, 2019 • Encourage investment in our province Stettler Community Hall 5101 - 46 Avenue, Stettler If you are a local business, and would like to be considered for the ATCO approved vendors list, please contact us toll free at 1 800 668 2248.

Definitions

Circuit Consultation Right-of-way A circuit is a group of wires electricity A consultation is a meeting where A right-of-way is the use of a flows through. ATCO’s transmission advice, information and views are strip of land acquired for the lines can be single or double circuit. exchanged. construction and operation of a A single-circuit line has three wires transmission line. The term right- and a double-circuit line has six. A Kilovolt (kV) of-way is also used to refer to the transmission line may also have one A kilovolt is equal to one thousand physical space a transmission line or two shield wires on the top of the volts. This unit of measurement encompasses including areas on structures to protect the line from is most commonly used when either side of the line. lightning. describing transmission and distribution lines. Distribution and Termination Circuit breaker transmission lines in Alberta carry A termination is the point where a A circuit breaker is an automatic between 4-kV (4,000 volts) and 500- power line ends and connects to a switch that is designed to protect an kV (500,000 volts). substation. electrical circuit from overloading by shutting off the flow of electricity. Alberta Electric System Operator

CONTACT The AESO plans and operates Alberta’s electricity grid and wholesale electricity market safely, reliably and in the public interest of all Albertans. They are a INFORMATION not-for-profit organization with no financial interest or investment of any kind in the power industry. If you have any questions or concerns about the need for this Project you may contact the AESO directly. You can also make your Your comments and concerns are important questions or concerns known to an ATCO representative who will collect your to us. Please contact us if you would like personal information for the purpose of addressing your questions and/or to learn more about this project, or if you concerns to the AESO. This process may include disclosure of your personal would like to share information with us. information to the AESO. • Call us toll free at 1 855 420 5775 or The AESO’s Need Overview for the Central East Transfer Out Transmission Development can be found online at: www.aeso.ca/grid/projects • Use the enclosed reply form and postage- paid envelope to share feedback or

Landon Bawol Approval Process Environment & Land ATCO Alberta’s electrical system is regulated by the Alberta Utilities Commission 10035 - 105 Street (AUC), an independent agency of the province that ensures the fair and , AB T5J 2V6 responsible delivery of utility services. Before ATCO can begin construction on this project, the AUC must approve the facility application, which includes Email: [email protected] details such as location of electric transmission facilities and proposed Website: www.ATCO.com alterations. For more information about how you can participate in the (click on “Projects”) AUC approval process, please refer to the enclosed AUC brochure, Public Fax: 780 420 5030 Involvement in a Proposed Utility Development. If you are affected by the route(s) in our application, information you shared To learn more about AltaLink’s portion of the with us will be summarized in our facility application to the AUC. The AUC Central East Transfer Out Project please contact: will consider this input in its review of the application. AltaLink Management Ltd. (AltaLink) Phone: 1 877 267 1453 (toll free) Email: [email protected] Website: www.altalink.ca/projects Included in this package: • Reference Map — reflects the entire project area To learn more about AESO’s portion of the • ATCO Reference Map — to reflect ATCO portion of the Central East Transfer Out project, please project area contact: • Selected Route Mosaic Maps — maps are included to Alberta Electric System Operator (AESO) your specific land or area interests Phone: 1 888 866 2959 • Facility Detail Maps — these maps provide additional Email: [email protected] detail to your land interest Website: www.aeso.ca/grid/projects • AUC Brochure: Public Involvement in a Proposed Utility Development Alberta Utilities Commission (AUC) • Reply form and postage-paid envelope Phone: 780 427 4903 (for toll-free, dial 310 0000 first) Email: [email protected] Website: www.auc.ab.ca )" )" )"

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AltaLink 240 kV Transmission Line Selected Routes Primary Highway ATCO 240 kV Transmission Line Selected Routes Secondary Highway AltaLink / ATCO Service Territory Boundary Road µ )" Existing Substation City/ Town/ Village 0 5 10 Kilometres Existing 500 kV Transmission Line Provincial Park Central East Transfer Out Project Existing 240 kV Transmission Line Waterbody 0 2.5 5 Miles Existing 138 kV / 144 kV Transmission Line Watercourse Existing 72 kV Transmission Line NOTES: OVERVIEW REFERENCE MAP - Only facilities in the vicinity of the project are shown. Railway - Several routes are shown, but only one will be built. UPDATE

This map is the property of AltaLink & ATCO. This map CREDIT NOTES is not intended to be used in place of Alberta One Call. June 2019 Alberta Data Partnerships, Government of Alberta, Government of Canada, IHS Markit, AltaLink, ATCO Always practice extreme caution when near power lines! RS-CETO - N2 - 01

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AltaLink 240 kV Transmission Line Selected Routes Railway ATCO 240 kV Transmission Line Selected Routes Primary Highway ATCO Rejected Routes Secondary Highway µ AltaLink / ATCO Service Territory Boundary Road 0 2 4 6 Kilometres )" Existing Substation City/ Town/ Village Central East Transfer Out Project Existing 500 kV Transmission Line Provincial Park 0 1 2 3 Miles Existing 240 kV Transmission Line Waterbody NOTES: ATCO REFERENCE MAP Existing 138 kV / 144 kV Transmission Line Watercourse - Only facilities in the vicinity of the Existing 72 kV Transmission Line project are shown. - Several routes are shown, but only one will be built.

This map is the property of ATCO. This map is not CREDIT NOTES intended to be used in place of Alberta One Call. June 2019 Alberta Data Partnerships, Government of Alberta, Government of Canada, IHS Markit, AltaLink, ATCO Always practice extreme caution when near power lines! RS-CETO - N2 - 02

Cartography By: RDH Approved By: LJ 1:200,000 at Ledger Projection: NAD 1983 UTM Zone 12N File Name: CETO_ReferenceMap

SHAPE THE CONVERSATION CENTRAL EAST TRANSFER OUT TRANSMISSION PROJECT

REPLY FORM 10035 – 105 Street, Edmonton, Alberta, T5J 2V6

CONTACT INFORMATION Date (DD/MM/YYYY):

First Name: Please help us identify new contacts Last Name: You were contacted about this project because ATCO identified you Company/Organization Name (if applicable): or your company/organization as having a land interest in the vicinity of the project. Is there anyone else associated with your property, such as other owners, renters or occupants, who we should also Mailing Address: contact? If so, please provide the name(s), contact information and

their land interest.

Home Phone:

Cell Phone:

Business Phone:

Email:

I would like to receive all future correspondence about this project by Email (If this is your preference, please check the box)

AN IMPORTANT MESSAGE ABOUT PRIVACY: The information on this form is being collected to identify concerns with proposed changes to and/or the siting of power transmission facilities, and to comply with the Alberta Utilities Commission (AUC) rules regarding the submission of transmission facilities applications. This information may be provided to electric facility owners, Alberta's Surface Rights Board, and the Alberta Electric System Operator. Your comments and personal information may also be publicly accessible through the AUC website, should it be submitted to the AUC as part of a transmission facility application – subject to Alberta's Freedom of Information and Protection of Privacy Act. If you wish to keep your information confidential, you must make a request to the AUC (403-592-4376). If you have questions or concerns about your information or how it may be used or disclosed as part of this process, please contact us (see contact information below).

Please let us know by checking a box below if either statement applies to you:

I do not have concerns with the Project based on the information provided

I have concerns with the Project based on the information provided

Please share any comments or concerns that you have about the Project:

HOW TO SUBMIT: Please use the enclosed envelope to return by mail or fax to 780-420-5030. If you would like more information about the project, please contact us toll free 1-855-420-5775 or by Email: [email protected].