Glen Miller Generating Station (8 MW) - Trenton: Trent River

On January 1, 2015, the Ontario Power Authority merged with the Independent Electricity System Operator to create a new organization that combines the OPA and IESO mandates.

Please note that the information on this page is not current and will not be updated. A new format for contract data will be published soon.

Commercial Operation on December 19, 2005

Glen Miller Generating Station is a 2-unit “run-of-the-river” hydroelectric generating facility with a nameplate capacity of 8 MW built at Sonoco’s Mill Dam on the Trent River, 1.6 kilometres north of Trenton, Ontario.

The old powerhouse consisted of four generating units and obsolete equipment with a total installed capacity of 1 MW and a combined discharge of 30 cubic metres per second was totally dismantled in February 2004 to allow for the construction of the new facility.

The new facility consists of two high efficiency “Ecobulb” Kaplan turbine/generators. The existing dam has been refurbished to correspond with the raise in the operating level of the head pond by 1.6 metres to a final rated head of 6.1 metres. The total discharge of new plant has been increased to 142 cubic metres per second.

The plant is connected to the existing Hydro One 44 kV 12M1 feeder from Sidney TS to feed into the Ontario electricity market administered by the Independent Electricity System Operator.

Location: Trenton, Ontario
River System: Trent-Severn Waterway
Nameplate Capacity: 8 MW
OPA Contracted Capacity: 8 MW
Developer: Glen Miller Power LP
(Innergex Group)
Technology: Run-of-the-river, hydroelectric
Turbines: Two Va Tech Ecobulb units
Commercial Operation Date: December 19, 2005


Innergex Group

Project Contacts:

Ontario Power Authority
Media and Public Relations
T. 416-969-6307 or 
Glen Miller Power LP

Renaud de Batz 
Vice President, Eastern Region - Hydroelectric Energy 
T. 450-928-2550