Canadian company Boralex mades a loss of $50m in the first three quarters of 2018, widening from the $18m loss in the same period last year.
However, revenue from energy sales and earnings before interest, tax, depreciation and amortisation were both up in the first nine months of the year.
Revenue stood at $371m, up from $325m, while EBITDA rose from $215m to $233m this year.
The widening loss was attributable to lower production in the third quarter of the year, increased amortisation expenses, acquisition and financing costs, the company said.
Boralex said it now has 1853MW of installed capacity, a 397MW increase or 27% since the start of the year.
The company expects to have 2065MW installed by the end of 2020.
It is pursuing new opportunities in established markets, such as France, and also elsewhere in Europe, particularly the UK.
In North America, Boralex has submitted bids in partnership with AWEC in the Canadian province of Alberta under a request for proposals.