The province saw 850MW of new wind energy came online in 2014, nearly half of the record 1,871MW built across the country.
Quebec, which had been the installation leader for the two previous years, added 439MW in 2014 and Alberta came third with 350MW.
Ontario has contracted for more than 4GW of wind energy over the past several years, largely under its now-defunct feed-in tariff program.
At the same time, Quebec has been steadily working through a large backlog of projects with power purchase agreements.
These trends are reflected in the relative positioning of turbine suppliers for 2014. While Enercon and Senvion, currently the dominant players in Quebec, led the market in 2013.
Siemens and GE together supplied more than 50% of turbines to Canadian projects in 2014. In total, there were seven different suppliers to projects in Canada last year.
Last year's installation figures also reflect an increasing emphasis on the part of policymakers in several provinces to ensure local communities both support and benefit from wind development in their jurisdictions.
Of the 37 projects that came on line in 2014, 15 included significant ownership stakes from First Nations, municipalities or local farmers.