It's an excellent question. Thank you for the opportunity to respond.
Again, I am speaking for the portfolio that is Public Works and Government Services Canada. We are responsible for approximately seven million square metres nationally; 52% of that is crown-owned by Public Works, or part of a lease purchase that will eventually become part of our property and is very much treated as crown-owned, and the other 48% is leased. So when we talk about energy consumption, we are speaking specifically about the crown-owned space, because that is within our purview and we have the ability to look at those numbers.
With regard to leased space, the cost of energy is normally included in the cost of the rent. It can be done through a triple-net or a semi-gross lease. The federal crown typically uses semi-gross, where we would establish a base and then pay an index amount each year.
So we have a base year of energy consumption from the landlord, and then we pay an index increase, not actual cost. This gives us greater predictability over the term of the lease.