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Home > In Your Community > New Projects > Transmission System Projects
Transmission System Projects
Cooksville TS Upgrade and Transmission Line Project
Background
The Ontario Government passed a regulation requiring Ontario Power Generation
to shut down Lakeview Generating Station (GS) by April 30, 2005 in an
effort to improve air quality. Lakeview GS is currently an important source
of electricity for southern Mississauga, Oakville and west Toronto.
To facilitate the closure of Lakeview GS, Hydro One must make changes
on our transmission system at three locations. Our switching station at
Lakeview GS must be shut down, new switching equipment must be installed
at our Cooksville Transformer Station (TS) at Cawthra Road, and a new
supply line must be constructed to Cooksville TS to replace the supply
currently provided by Lakeview GS.
To address the need for a new supply line to Cooksville TS, Hydro One
looked at four alternatives and selected a transmission option that is
least costly and least disruptive from a community perspective. This option
requires the construction of an additional line between Cooksville TS
and Applewood Junction (see map), to enable an additional power supply
from Manby TS in Etobicoke. This new line will be buried within the existing
right of way, as it is less costly than building an overhead line due
to the presence of two existing overhead lines and existing EnerSource
Hydro Mississauga lines on the right of way.
The voltage and current associated with power supply along the right
of way will not change. The only difference is that the power will flow
through three transmission lines rather than the two that exist today.
To ensure that any community concerns are identified and addressed, Hydro
One has undertaken a consultation program with elected officials, affected
neighbours, and the local elementary school.
Project Description
The project involves upgrades at Cooksville TS at Cawthra Road and the
transmission line connecting it to Applewood Junction near Stanfield Road,
and the removal of switching equipment at Lakeview Switching Station.
Cooksville Transformer Station (TS)
- Install new switching equipment
- Replace existing chain link fence with solid fence, and extend it
on Hydro One property to accomodate new switching equipment.
Hydro One transmission corridor
Lakeview Switching Station (SS)
- Remove switching equipment.
All of this work will occur within the existing transmission corridor
and station site.
Construction Activities at Cooksville TS
- In January 2005, Hydro One notified residents abutting the right-of-way
that we were installing a construction fence to restrict access to the
right-of-way and that construction of the trench for the underground
transmission line would start shortly. This letter was also sent to
the City of Mississauga, the local councillors for the area, and the
school board and principal of Westacres School. Download the Transmission
Corridor Construction Notice to Homeowners - January 2005 (PDF 402
KB).
- In February 2005, construction activity at the road crossing will
occur.
Underground Transmission Line Description
- The underground transmission line is located on the east-west hydro
corridor that runs north of the North Service Road.
- Two overhead lines already exist on this right-of-way and will continue
to remain in place.
- The underground line will extend 1.3 km from Cooksville TS to a point
known as Applewood Jct. (at Stanfield Road).
- Work along the right of way is expected to begin in February 2005.
- Hydro One typically builds these lines overhead, however, because
of the presence of the existing lines on the right of way, it is less
costly to build the new line underground.
- Once completed, residents will not see any physical changes to the
corridor, with the exception of cable connectors near Applewood Jct.
(this equipment is similar to what already exists on the right of way).
Public Information Centre Open House
Download materials from our Public Information Centre, held on September
28, 2004:
For more information, please contact:
Community Relations
Hydro One Networks Inc.
Tel: 1-877-345-6799 or 416-345-6799
Fax: 416-345-6984
E-mail: community.relations@HydroOne.com
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