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Rio Tinto contracts AtkinsRéalis to refurbish Isle-Maligne hydropower plant

Peter Saunders May 21, 2025 2 min read
Canadian Consulting Engineer
Rio Tinto contracts AtkinsRéalis to refurbish Isle-Maligne hydropower plant
AI Article Summary

Rio Tinto has contracted AtkinsRéalis for a seven-year refurbishment of the Isle-Maligne hydropower plant in Alma, Quebec, investing $1.7 billion to modernize the facility. This effort, which includes replacing turbine-alternator groups and various upgrades, marks Rio Tinto's largest hydropower investment since the 1950s. The Isle-Maligne hydroelectric plant, operational since 1926, represents a significant component of Rio Tinto's strategy to support low-carbon aluminum production in Canada. The project is expected to be completed by 2032.