Today you have the technology, through advanced metering infrastructure for electricity and gas, to report in a much more detailed, granular form. If you do it in a standardized way, you could meld that information quite easily. You'd need to fill a few gaps on things like oil. If you plug that in, in the same standard, and you do it over time, you'll then get your energy picture from the bottom up instead of the top down.
On May 31st, 2018. See this statement in context.