The five planning regions in the GTA and Central Ontario area includes all of the Greater Toronto Area, stretches north to Parry Sound/Muskoka, and roughly spans the area from Meaford to Minden.
The GTA East region extends from Lake Ontario northward to the southern parts of Scugog and Uxbridge, and includes the municipalities of Pickering, Ajax, Whitby, Oshawa and parts of Clarington within Durham Region. The area is supplied by several transformer stations fed by the 230 kV transmission system in the area. Electrical usage in this region is comprised of a mix of residential, commercial, and industrial customers. Strong residential growth is being seen in many areas across the GTA East region. This is primarily driven by urban intensification throughout Pickering Ajax, Whitby, and Oshawa, as well as new community growth in northern Pickering. Industrial customer demand has also increased in recent years, through a combination of new facilities, and conversion of existing end uses to electricity supply.
The local distribution companies in the area include:
Elexicon Energy
Hydro One Networks Inc.
Oshawa PUC Networks
Regional Planning Progress Update
Regional electricity planning has kicked-off in the GTA East electrical region to ensure a reliable supply of electricity, and to support local growth and economic development.
The 2025 GTA East Scoping Assessment Outcome Report has been posted following the April 1 narrated presentation. The report detailed the need for a coordinated regional planning approach and development of an Integrated Regional Resource Plan (IRRP) for the GTA East electricity region.
Engagement will continue throughout the development of the plan with more details to follow. The GTA East engagement webpage continues to be a source of ongoing information related to regional planning activities, including any upcoming engagement opportunities.
