If you look at Manitoba and British Columbia and the hydro surpluses they typically always have, even if it's just non-firm because of water conditions, they are moving predominantly north-south. That is creating significant energy surpluses, at least in the trade from those two provinces.
If I could say, for mindless economic reasons in the United States, there's this notion that there should be no trade imbalance between two countries, clearly if you have trade surpluses in energy, you're going to have less room for trade in other areas. That's why I think there's a strategic value in enhancing our capability to trade east-west, so that surpluses don't have to be sold just north-south.