Leveraging smart building initiatives is an example. We can look at when the building is occupied, and we can start to try to reduce the use of some our HVAC systems when the building is less occupied, maybe start looking at reducing lighting. That would be just a small example.
With some of the organizations you mentioned, like the Major-General Pearkes Building, National Defence headquarters, there may be times when that's a 24/7 operation, but for the most part those are the types of things we can do.
From a lighting perspective, I think some of the—