The answer is electricity. BC is a major producer of it and already has the infrastructure in place.
Rather than keeping this unworkable system struggling along BC should commit all the cash they normally shovel over to the oil industry and put it into electric vehicles.
The only other thing to do would be o build refining capacity in BC and that is simply not going to happen - for he same reason that pipelines are untenable. Modern environmental laws are far too stringent.
So we are left with demanding a product from another jurisdiction that we will not allow to be produced in our own. It is a logical fallacy.
I would far prefer to get fleeced by converting over to electric than to get fleeced to stay with gasoline - and make no mistake, regardless of what happens BC is going to be paying up.