Your question is interesting and it allows us to compare three different energy options.
In 2008, the estimated cost of the Gentilly-2 refurbishment project was $1.9 billion for a unit cost of 8.6¢ per kilowatthour (kWh) of output. In 2012, the refurbishment cost was re-evaluated at $4.3 billion based on feedback obtained from similar refurbishment projects in South Korea and New Brunswick.
This corresponded to a unit cost of 12.3¢ per kilowatthour. Hydro-Québec therefore came to the conclusion that it didn’t make sense from a financial perspective to refurbish the power plant and we recommended that our shareholder, the Québec government, close Gentilly-2.
As you know, in September 2012, the government decided not to proceed with the refurbishment project.
With regard to wind power, our mean supply cost is 10 cents/kWh. Hydro-Québec does not produce wind power but instead issues calls for tenders for the purchase of wind power, in accordance with government decrees.
As for our hydropower, it remains the power of the future! In 2014, the average cost of generation for Hydro-Québec’s generating facilities as a whole was 2.01¢ per kilowatthour. We use water to generate more than 99% of our output. Our low generating costs are one of the factors that help make Hydro-Québec’s rates the lowest in North America.