Yes, I think so.
I apologize, but I'm going to answer in English, because I lack the technical vocabulary in French.
This is really technical stuff. Mr. Aplin was absolutely right when he made the distinction of baseload power. You need your steady, reliable baseload. Hydro is perfect for baseload. Nuclear is perfect for baseload. Then you have peaking power, and when you have intermittent power, it needs to be backed up by peaking.
That's why, as Ontario expanded renewables like solar and wind, it also built a whole bunch of new gas plants because, while a battery can supply you enough power to keep the electricity flowing when a cloud passes between the sun and your solar panel, it can't provide power overnight when the sun isn't shining, so you need to run peaking plants.