Here's the thing, when you have as much hydro and nuclear as Canada has, your have to worry a lot less about synchronization. We can literally dial up and down generation as needed from those sources. Most places have to build a lot of grid storage to do what we can do with all our existing assets. We are blessed by geography here. We need to be a bit more ambitious about exploiting it.
By the way, Quebec gets this, it's why they are so far ahead in the electrification game. Ontario for some reason doesn't even want to build up interconnects to Quebec to take advantage of all that dispatchable hydro they have.
The distance stuff is really not all that relevant. We build interconnects and trade power regionally. Electrons aren't going from Halifax to Vancouver. At best they are going from St. John's to Sudbury.
In any event, my point here is that we don't really have the shortage that people imagine. We also have a ton of cheap natural gas, which is exactly what Europe uses for a lot of high energy industrial processes. These can and should be leveraged to bring heavy industry to Canada. There's no point shipping gas to Europe. It's easier to ship them steel.