It's based on output and also the ability to actually get the work done. Some buildings, frankly, are very difficult to upgrade.
The other priority I'd flag is the purchase of green energy. Some of the commitments we have.... Obviously, we don't produce our own electricity, so we're reliant on the market. Getting agreements in place in all provinces to allow us to buy green electricity is certainly a priority as well.
Saleem, do you have anything to add there?