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Region Overview

The Greater Toronto Area (GTA) North Region is approximately bounded by the Regional Municipality of York, and also includes parts of the City of Toronto, Brampton, and Mississauga. The region is divided into two sub-regions: 

  • York Sub-region: This area includes Southern York area (the Municipalities of Vaughan, Markham, and Richmond Hill), and Northern York area (the Municipalities of Aurora, Newmarket, King, East Gwillimbury, Whitchurch-Stouffville, Georgina, and some parts of Simcoe County supplied from the same electricity infrastructure). 
  • Western Sub-region: This area comprises the western portion of the City of Vaughan.

Region's Local Distribution Companies

  • Alectra Utilities Co.
  • Hydro One Networks Inc.
  • Veridian Connections Inc.
  • Newmarket-Tay Power Distribution Ltd.
  • Toronto Hydro Electric System Limited

Map: GTA North

Current Status

The first regional planning cycle for this region is complete. The Regional Infrastructure Plan (RIP) for the region was published in February 2016. It is expected that the next planning cycle for this region be initiated in the next three to five years.

The Integrated Regional Resource Plan (IRRP) for the York Sub-region considers all options to address electricity supply needs in both the southern and northern areas of the sub-region over the next 20 years. The Needs Assessment (NA) was completed for the Western Sub-region, and determined that the needs identified in the area can be addressed directly by Hydro One and Local Distribution Companies (LDCs) and further regional coordination is not re

Accomplishment (Most Recent Shown First) Status Completion Date
Regional Infrastructure Planning
Completed February 2016 
Integrated Regional Resource Planning - York Completed April 2015
​Needs Assessment Completed March 2018

*The completed reports are available below. 

Relevant Documents

Regional Infrastructure Planning (RIP)
Name Completion Date
RIP Report GTA North February 2016
Integrated Regional Resource Planning (IRRP)
Name Completion Date
IRRP - York Subregion - Appendices  April 2015
IRRP - York Subregion - Report  April 2015
Needs Assessment (NA) and Scoping Assessment (SA)
Name Completion Date
Needs Assessment Report - GTA North March 2018
Needs Assessment Report - GTA North - Western Subregion  June 2014
Additional Documents
Name Completion Date
Markham-Richmond Hill Letter of Support April 2017
OPA Letter to Hydro One Regarding York Subregion  June 2013