EPC calculations - criteria

The government is again (still) assessing the EPC system. The aim is to make it reflect the real life energy usage of a building! Deja vu or what?

Has anything changed since this thread was last used? I doubt it.

What would members of this forum like to see changed?

The main factor against meaningful change, as far as I can tell, is that the EPC is supposed to be cheap. A proper analysis on a property by property basis will take hours, including the off site element. Time is money, as they say, and if the price rockets there will be an outcry.