Where Is Your Energy Actually Going? A Building Owner's Guide to Finding Out

Your energy bill tells you what the building cost to run. It doesn't tell you what used the power, when, or whether anyone was there.

The household energy price cap went up 4% on 1 October. Businesses aren't covered by it, because their bills depend on their own contracts. But it's a good reminder to ask a plain question: where does the energy in your building actually go? Many owners can't answer. Good energy management starts with energy monitoring that tells you more than the total on one monthly bill.

Aireavu's energy monitoring fits sensors to the building and splits the use out by system, so it's no longer one big number. Real-time reporting shows when the energy gets used. Add occupancy sensors and you can see whether anyone was in the building at the time. Aireavu puts a building's energy into three buckets. Some of it can't be saved, like fire and security systems. Some of it is doing a useful job, like heating, cooling, lighting and appliances. The rest is waste, and that happens whether the space is occupied or empty. The waste is what you're after, and you won't spot it from a total.

Here's what that looked like in one multi-site deployment of relocatable buildings. The operator had no visibility into how energy was being used or how the spaces were occupied, and the heating, cooling and ventilation ran to fixed schedules whatever the occupancy. Aireavu's platform analysed occupancy and environmental conditions across five cities and automatically optimised heating and cooling. Average energy savings came out at over 60%, and the results showed up within months.

Outside Aireavu's own results, the US Department of Energy's Metering Best Practices guide reports that buildings have shown efficiency improvements of 10-20% after acting on metered data. The guide is upfront about the catch, though. Metering on its own saves nothing, and usually only the success stories get published. The savings come from what you do once you can see the numbers.

If you want a quick check on your own building, ask three things. Which systems use the most energy? When do they use it? Was anyone there? If your bills can't answer those, you only have a total to go on. Start with anything that runs overnight or at weekends, and anything on a fixed schedule that doesn't care who's in.

Book a consultation with Aireavu to see where the energy goes in your own building.