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Bremner Transformer StationGrowing Grids Presentation, Nov 29th 2012

Presented by:

Shaun Pinard

Toronto Hydro2 | Bremner TS, Growing Grids Presentation, Nov 29th 2012

• Background – Why is Bremner TS required?

• Scope of Work – What work will be done?

• Status – Where are we now?

Agenda

Toronto Hydro3 | Bremner TS, Growing Grids Presentation, Nov 29th 2012

Why is Bremner TS required?

• Immediate Need – Windsor TS upgrades

• Short term need – Avoid overload at key stations

• Mid term Need - Load growth to 2030

Toronto Hydro4 | Bremner TS, Growing Grids Presentation, Nov 29th 2012

Immediate Need – Windsor TS Upgrades

Windsor TS: - Built in 1954

- Supplies key customers in

downtown core

Toronto Hydro5 | Bremner TS, Growing Grids Presentation, Nov 29th 2012

Windsor Transformer Station

Toronto Hydro6 | Bremner TS, Growing Grids Presentation, Nov 29th 2012

Short Term Need – Avoid Overload at 5 downtown Stations

UNITS OF MEASURE - MVA

Toronto Hydro7 | Bremner TS, Growing Grids Presentation, Nov 29th 2012

WHITE = the project has had preliminary renders, but

no application has been submitted.

RED = the project has submitted an application to the

city

GREEN = the project has been approved, but has yet

to start construction

YELLOW = the project is currently in sales

BLUE = the project is currently under construction

As reported in Canadian Business Magazine

Short Term Need – Avoid Overload at 5 downtown Stations

Toronto Hydro8 | Bremner TS, Growing Grids Presentation, Nov 29th 2012

Long Term Need – Address Continuing Projected Load

Growth

Capacity

Toronto Hydro9 | Bremner TS, Growing Grids Presentation, Nov 29th 2012

Scope of entire Project

Work Why?

1. Cable Tunnel High Voltage Connection from Hydro

One at Front St & Simcoe St

2. Transformer Station High Voltage to Medium Voltage

Conversion

3. Duct Banks Medium Voltage Supply to Customers

Toronto Hydro10 | Bremner TS, Growing Grids Presentation, Nov 29th 2012

1) Cable Tunnel

Toronto Hydro11 | Bremner TS, Growing Grids Presentation, Nov 29th 2012

Bremner Transformer Station

2) Transformer Station

• Site preparation

• Disassembly & Storage of the

Machine Shop

• Construction of the new

underground building

• Reassembly of Machine Shop

• Installation of electrical

equipment

• Site landscaping work

Toronto Hydro12 | Bremner TS, Growing Grids Presentation, Nov 29th 2012

Building Layout – TS Basement

Roundhouse

Lakeshore Blvd

Toronto Hydro13 | Bremner TS, Growing Grids Presentation, Nov 29th 2012

Building Layout – TS Main Floor

Roundhouse

Lakeshore Blvd

Toronto Hydro14 | Bremner TS, Growing Grids Presentation, Nov 29th 2012

Building Layout – TS Mezzanine

Roundhouse

Lakeshore Blvd

Toronto Hydro15 | Bremner TS, Growing Grids Presentation, Nov 29th 2012

Building Layout – TS Roof

Roundhouse

Lakeshore Blvd

Toronto Hydro16 | Bremner TS, Growing Grids Presentation, Nov 29th 2012

Bremner Transformer StationBremner Transform-r StationTransformer Station – Post-Construction (Architectural Rendering)

Toronto Hydro17 | Bremner TS, Growing Grids Presentation, Nov 29th 2012

Bremner Transformer StationTransformer Station – Post-Construction Concept

Toronto Hydro18 | Bremner TS, Growing Grids Presentation, Nov 29th 2012

Transformer Station – Post-Construction Concept

Toronto Hydro19 | Bremner TS, Growing Grids Presentation, Nov 29th 2012

Transformer Station – Post-Construction

Toronto Hydro20 | Bremner TS, Growing Grids Presentation, Nov 29th 2012

Bremner Transformer StationOther examples of site-integrated TS‟s

Location Utility Station Year

Completed

New York City, USA Con Edison Mott Haven

Substation

2012

Sydney, Australia Transgrid Haymarket

Substation

2004

Nagoya, Japan Chubu Electric

Company

Meijo Substation 1999

London, England EDF Energy Leicester Square

Substation

1989

Vancouver, British

Columbia

BC Hydro Cathedral Square

Station

1984

Toronto Hydro21 | Bremner TS, Growing Grids Presentation, Nov 29th 2012

Project Rees St:

- Civil infrastructure for underground distribution lines and feeders

- Work anticipated to be completed in November 2012

3. Duct Banks – Distribution to Customers

Toronto Hydro22 | Bremner TS, Growing Grids Presentation, Nov 29th 2012

Project Schedule

Sept – Dec 2012:

- Relocation of existing services, roadway

- Hazmat work within Machine Shop

2013 – 2014:

- Main Contract – building, equipment, etc

Toronto Hydro23 | Bremner TS, Growing Grids Presentation, Nov 29th 2012

– Temporary Road

– Site Services (water and

sanitary relocation)

– Bell Line Relocation

– Machine Shop

environmental clean up

– Tree Relocation

Site Preparation / Hazmat

Work

Sep – Dec 2012

Toronto Hydro24 | Bremner TS, Growing Grids Presentation, Nov 29th 2012

Where are we right now

Pre-construction phase:

Work Status

Land Acquisition Complete

Detailed Design Complete

Environmental

Assessment

Complete

City Approvals In Progress

Funding Application In Progress

Site Preparation In Progress

Toronto Hydro25 | Bremner TS, Presentation to Bidders December 4, 2012

Disclaimer

The information in these materials is based on information currently available to Toronto Hydro Corporation and its affiliates

(together hereinafter referred to as “Toronto Hydro”), and is provided for information purposes only. Toronto Hydro does not

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reliance on the information therein. These materials may also contain forward-looking information within the meaning of

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