LAKESHORE TRANSMISSION STATIONS PROJECT OCTOBER 1, 2019

COMMUNITY INFORMATION CENTRE OVERVIEW Meet our project team and learn more about:

• Project update & description

• Description of the class environmental assessment process

• Selection of the preferred option for the transformer station

• Next steps & anticipated project schedule

We’re here to share information, listen to your comments or concerns, obtain your feedback and answer questions.

OUR ROLE IN DELIVERING POWER TO YOU

ONTARIO POWER GENERATION AND PRIVATE GENERATION

COMPANIES

Generation Step-up

Transformer Station

HYDRO ONE

Transmission Lines 230,000 volts - 500,000 volts

Lakeshore Transformer

Station

Transmission Lines 28,000 volts

Distribution Station

Distribution Lines

HYDRO ONE/YOUR LOCAL UTILITY

Pole-Mounted Transformer

Home Wiring 120-240 volts

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Produced By: Inergi LP, GIS Services Date: Jun 17, 2019 Map19-105_SouthwestOntario_WindsorChatham_v2 (C) Copyr ight Hydro One Networks Inc. All rights reserved. No part o f this drawing may be redistributed or reproduced in any form by any photographic, e lectronic, mechanical or any other means, or used in any information storage or retrieval system. Nei ther Hydro One Networks Inc. nor any of its affiliates assumes liability for any errors or omissions.

Produced by Hydro One under Licence with the Ontario Min istry of Natura l Resources © Queen’s Pr inter for Ontario , 2009.

NOT TO BE REPRODUCED OR REDISTRIBUTED CONFIDENTIAL TO HYDRO ONE NETWORKS INC.

Transmission Station 115 kV 230 kV Proposed Lakeshore TS

Junction 115 kV 230 kV

Transmission Line 115 kV 230 kV

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Southwest Ontario Transmission Network #*

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KEY ORGANIZATIONS

Builds, owns, operates and maintains electricity transmission and distribution facilities across Ontario.

Develops plans to ensure electricity needs are met for the benefit of Ontario, both now and in the future.

Ministry of Environment Conservation and Parks

Reviews the environmental assessment process to ensure potential environmental effects are considered before an infrastructure project begins.

PROJECT OVERVIEW The IESO completed an assessment of the electrical load forecast for Essex County and requested Hydro One to construct a new switching station which will help meet the growing needs of the area.

Hydro One has also identified the need for additional transformers, in order to supply more low-voltage electricity to homes and businesses in the area.

The proposed Lakeshore Transmission Stations Project will involve a new 230 kV switching station and a separate 230/27.6 kV Transformer Station, which together will:

• Improve reliability of the transmission system in Essex County, and;

• Supply the distribution system which carries power to local homes and businesses.

CLASS ENVIRONMENTAL ASSESSMENT • The project is subject to the Class Environmental Assessment for

Minor Transmission Facilities (Hydro One, 2016) process, in accordance with the Ontario Environmental Assessment Act.

• This process ensures that transmission projects that have a predictable range of effects are planned and carried out in an environmentally acceptable manner.

• The Class EA process includes:

• Consultation with municipal, provincial and federal government officials; government agencies; First Nation and Métis communities; potentially affected and interested persons, affected businesses and interest groups.

• Collection of environmental inventory data and description of the existing baseline conditions.

• Identification and evaluation of alternative methods of undertaking the project.

• Identification of potential environmental effects of the project and mitigation measures.

CLASS ENVIRONMENTAL ASSESSMENT • As part of the Class EA process, a draft Environmental Study

Report (ESR) will be made available for a 30-day public review and comment period. An ESR is an easy-to-follow record of the decision making process and generally includes:

• A description of the need for the project;

• A description of the existing environment;

• The preferred solution;

• The rationale behind the selection of the preferred solution;

• A description of the Indigenous and stakeholder consultation undertaken; and,

• A description of the potential environmental effects of the preferred solution and mitigation measures to address these effects.

• Hydro One will make best efforts to resolve concerns raised during public consultation and the draft ESR review period, prior to filing the final ESR with the Ontario Ministry of the Environment, Conservation and Parks (MECP).

• If a concern cannot be resolved, the concerned party may submit a written request (“Part II Order Request”) to the MECP during the public review period to request a higher level of assessment, known as an Individual Environmental Assessment.

CLASS EA STUDY AREA The proposed Lakeshore TS location is best suited to be near the existing Leamington Junction (JCT), where the existing 230kV circuits join.

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HYDRO ONE – LAKESHORE TS CLASS ENVIRONMENTAL ASSESSMENT

MIDDL PROJECT LOCATION AND CLASS EA STUDY AREA

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The study is bounded by Middle Road to the north, Rochester Townline Road to the east, South Middle Road to the south, and will extend west approximately 550 metres from the Leamington JCT.

STATION CONFIGURATIONS Hydro One has identified one technically feasible configuration for the 230 kV switching station and assessed three feasible configurations for the locations of the transformer station.

Based on the research and consultation to date, the preferred location of the transformer station has been selected.

") Leamington Junction

Preferred Transformer Station Location (Alternative B)

Alternative C

Alternative A

Switching Station

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Class EA Study Area

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EVALUATION OF THE PREFERRED CONFIGURATION

CRITERIA OPTION A OPTION B OPTION C

TECHNICAL & COST

Constructability Preferred

Cost Preferred Preferred

NATURAL ENVIRONMENT

V egetation No Preference

Aquatic habitat/waterbodies No Preference

Terrestrial wildlife No Preference

Potential natural hazards No Preference

Species at risk or sensitive species No Preference

SOCIO ECONOMIC

Distance from residences Preferred

Proximity to existing infrastructure Preferred Preferred

Total project footprint/size, and effects to agricultural land

Preferred

Archaeology & built heritage resources No Preference

Source water protection No Preference

Indigenous interests No Preference

Based on the outcome of the evaluation, Option B is the most preferred for the project.

PREFERRED CONFIGURATION

CONSTRUCTION ACTIVITIES The construction phase for the project will involve the following activities:

• Site preparation such as vegetation removal, grading, temporary access and laydown area

• Construction of temporary 230 kV bypass line to ensure continued power

• Installation of station fences, entrances, concrete foundations and station drainage

• Installation of new transmission line structures and station electrical equipment

• Delivery and installation of new transformers

• Connection of transmission lines and station electrical equipment, testing and commissioning

• Site clean up and reclamation

• Hydro One will be installing additional distribution lines to carry power from the new stations to the customers in the vicinity. These distribution power lines are expected to be on the road allowance of South Middle Rd, County Rd 31, Lakeshore Rd 243, Lakeshore Rd 245, and Rochester Townline road. Hydro One will be contacting affected property owners and road authorities in advance of construction.

MINIMIZING CONSTRUCTION AND PROJECT EFFECTS The following mitigation measures will be implemented to minimize potential construction and project effects:

• Dust, sediment and erosion controls, as required

• Hydro One will work in accordance with local bylaws with respect to noise and working hours, and if necessary obtain permit(s)

• Hydro One will minimize effects to existing agricultural resources to the extent feasible

• Landscaping and visual screening

• Hydro One does not anticipate power interruptions during construction of the switching and transformer stations.

TYPICAL CONSTRUCTION EQUIPMENT

Boom truck Cable puller

TYPICAL HYDRO ONE SWITCHING STATION AND TRANSFORMER STATION

Transformer station

Switching station

NEXT STEPS • Hydro One will complete environmental surveys within the study

area to complete the identification of potential environmental effects.

• Hydro One will continue to consult Indigenous communities, government agencies, municipal staff, elected officials, interest groups and the public to obtain feedback and answer questions about the project.

• Hydro One will release a Draft Environmental Study Report (ESR) for a 30 day public review, anticipated for release later this fall.

• If no Part II Order Requests are submitted during the 30 day review period, Hydro One will file the final ESR with the Ministry of the Environment, Conservation and Parks, concluding the Class EA.

ANTICIPATED PROJECT SCHEDULE

ACTIVITY TIMELINE

Notice of Commencement of the Class Environmental Assessment Early June 2019

Community Information Centre #1 Introduction of proposed project and alternatives June 26, 2019

Community Information Centre #2 Presentation of preferred alternative October 1, 2019

Draft Environmental Study Report Review period (30 days) November 2019

File final Environmental Study Report with Ministry of the Environment, Conservation and Parks (MECP) January 2020

Detailed engineering and permitting Early 2020

Anticipated start of construction Mid 2020

Anticipated construction completion Late 2023

THANK YOU FOR JOINING US TODAY Your input is important to us.

Please share your feedback with our team and complete a comment form before you go.

To provide comments or to be added to the project contact list, please contact the Community Relations team at: 1.877.345.6799 Community.Relations@HydroOne.com

For additional project information please visit: www.HydroOne.com/Lakeshore

HydroOne.com

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