Hydro quebec is the national energy "company", which is nationalised, but they give contracts to other companies to run parts of their operations - this happenes through multiple deals by one of our past prime minister. At this point, Hydro-Quebec is only directly responsible for a portion of the hydro we create, while it has let natural gas, wind turbines and possibly more to private companies.

It's hard to research even for a french speaker though - I think I might reasearch and write something on it just to clarify my own opinions