It’s an interesting article but is biased in that it fails to point out the drawbacks of wind power - mainly that it is not a reliable source (since wind is not constant) and that it has a high cost of both implementation and maintenance as well as a short infrastructure life and that it is not without it’s own environmental impact.
Its possible that wind farms are becoming economically competitive in the UK which has one of the highest costs of electricity in the world. If we accept that (in doing so we ignore the UK’s massive government subsidies of the industry) it does not mean that they will be competitive in Canada in a country where electricity costs are a fraction of the UK costs. 
Canadians are not prepared to triple their electricity price in order to move away from Hydro which is the cheapest, cleanest and least environmentally damaging source in the world.  
The article presents an inaccurate picture of the potential of wind energy in Canada which is quite limited.