Net electricity exports by Hydro-Quebec Production increased slightly from the same period in 2012.
The increase was offset by adjustments from the regulated activities of Hydro-Quebec TransEnergie and Hydro-Quebec Distribution.
Net income for the first nine months of the year amounted to $2.1 billion, compared with $265 million in 2012.
Hydro-Quebec Production's results for the three quarters increased to $1.4 billion from $1.2 billion.
The $206-million increase is mainly attributed to a $147-million increase in net electricity exports.
However, electricity purchases from Rio Tinto Alcan declined by $105 million. This was offset by an increase in water rates of $39 million.
Hydro-Quebec TransEnergie operations amounted to $416 million during the first nine months, down $60 million from 2012.