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Greenstone-Marathon - Regional Plan

Regional electricity planning is underway in the Greenstone-Marathon sub-region. Regional planning considers conservation, generation, transmission and distribution, and innovative resources.

Planning for the Greenstone-Marathon sub-region is driven by community growth, as well as potential demand from new industrial customers, primarily in the mining and forestry sectors, along with a large pipeline project. Combined, industrial projects could result in more than 150 MW of new demand.

The Integrated Regional Resource Plan (IRRP) will also consider ways to ensure long-term flexibility associated with the Ring of Fire mining development and other mining claims.

Current status: An Integrated Regional Resource Plan (IRRP) has been released for the Greenstone-Marathon sub-region.


How to get involved

The Greenstone-Marathon IRRP Working Group, led by the IESO, and consisting of members from Hydro One Networks Inc. (both transmission and distribution functions) will use the regional planning process to identify and meet local electricity needs.

A Local Advisory Committee has been established to provide advice on the development of the region's electricity plan, including how best to engage the community in this discussion. Thank you to all who submitted a nomination.

To find out when the Local Advisory Committee is meeting and to participate, see Greenstone-Marathon engagement initiative.

Subscribe to receive updates on the status of the plan and to learn about opportunities for municipalities, First Nation and Métis communities, community groups, stakeholders and the general public to provide input.


Area overview

The Greenstone-Marathon sub-region extends east from the eastern shore of Lake Nipigon including the Municipality of Greenstone, up to and including the Town of Marathon. A full listing of the municipalities in the regional planning area can be found in the terms of reference.

The Greenstone-Marathon sub-region also includes the following First Nations: Red Rock, Bingwi Neyaashi Anishinaabek ("BNA"), Biinjitiwaabik Zaaging Anishinaabek ("BZA"), Animbiigoo Zaagi'igan Anishinaabek ("AZA"), Long Lake #58, Ginoogaming, Aroland, Pays Plat, Ojibways of the Pic River, Pic Mobert.

Electricity to the sub-region is currently supplied from the 115 kV transmission system emanating from the Alexander Switching Station near Nipigon and Marathon Transformer Station in the Town of Marathon.


Greenstone-Marathon mapMap of Greenstone-Marathon Region

Historical context

During municipal engagement activities for the North of Dryden IRRP, the OPA (now the IESO) met with municipal representatives from Greenstone and Marathon. The IESO has also had conversations with representatives and members of a number of First Nation communities in the area. The IESO has confirmed that local economic development in the area warrants the development of a regional planning study.