Iroquois Falls Generating Station (29 MW) - Iroquois Falls: Abitibi River

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The Iroquois Falls Generating Station is a twelve-unit hydroelectric station located on the Abitibi River in Teefy Township. The original powerhouse was completed in 1914 with fourteen turbines, where ten turbines drove pulp grinders and four turbines were configured to drive electric generators. The station was reconfigured in 1946, where all fourteen turbines were reconfigured to drive electric generators for a capacity of 20 MW. In 2002-2004, the station was redeveloped to provide nine new Kaplan turbines and three of the remaining units were refurbished, resulting in a total capacity of 30 MW at a head of 13 metres.

Located downstream of the confluence of the Abititi and Black Rivers, the station is a run-of-river plant with small storage capacity. Operation pertaining to levels and flow are governed under the 2004-2014 Abitibi River Water Management Plan. The site is restricted by a maximum water elevation due to flood constraints and a year round minimum elevation to respect fisheries and navigational constraints. Operation is constrained by an instantaneous minimum flow of 56.6 m3/s at all times. The station is remotely controlled from the ACH LP Operating Center in Oshawa.

The Iroquois Falls station is categorized as close coupled, and has no penstocks. The station consists of a powerhouse, a concrete gravity section containing the spillway, sluice gates, and an earth section. Units 1 to 9 are provided with two head gates transferred to the required intake via a monorail hoist. There are four sluice gates on the spillway. Sluice gate #1 is a screw operated motorized gate, while sluice gates #2, 3 and 4 are hydraulically operated. In addition, there are fourteen bays of stop logs, which are handled by mechanical lifters. The headpond operates between the minimum elevation of 247.6 metres and maximum elevation of 247.85 metres.

Iroquois Falls is connected to the existing Hydro One 230kV circuit A931 and connects to Ansonville TS.

This hydroelectric generating station generates approximately 140,000 MWh of renewable energy per year.

Location: 1 Park St., Iroquois Falls, ON
River System: Abitibi River
Nameplate Capacity: 30 MW
OPA Contracted Capacity: 29 MW
Operator: AbitibiBowater
Technology: Hydroelectric, run-of-river
Turbines: Nine vertical Saxo Kaplan
Three horizontal double Francis
Originally Built: 1914
OPA Contract Term Commencement Date: December 1, 2009

Links:

AbitibiBowater
http://www.abitibibowater.com/

Project Contacts:

Ontario Power Authority

Media and Public Relations
T. 416-969-6307 or
1-800-797-9604

AbitibiBowater

Media
T. 514 875-2160
media@abitibibowater.com