In Canada, it's not very widespread. Under the EnerGuide system, when you had an audit done, you would get a label, and if you wanted to, you could stick it on your electric panel.
However, the key moment when you should understand the performance of a building is often when you're purchasing a building or you're purchasing a home. It should be part of the information you get. There's no province right now that is mandating that transparency when a home is sold.