Heatmap of the month – improving energy efficiency

There are many new products that help energy managers save energy from HVAC – one of the big challenges is understanding how to use them to reduce energy without compromising comfort.

Heat maps this month comes from an estate in the North of England with a very active programme of energy reduction. They show what happens in the office over three weeks as they trial a novel system in their condenser units, which offers exciting energy savings.

Here’s the first week – a record of seven days before the system was engaged.


In the second week the set up was tested for maximum theoretical savings. It’s immediately obvious that the building is struggling to shed excess heat after a warm weekend and although the performance is better towards the middle of the week, a warm day on Friday shows that the set up needs to be backed off to maintain comfort.

Has it worked? There is obviously still a problem in week 3 which was traced to a faulty HVAC sensor, not the new system. By the end of the week the sensor is replaced, comfort is restored for all occupiers and the energy manager can collect the savings from the new system knowing the output is what it should be.

Have you got an energy efficiency initiative that needs benchmarking? Get in touch and we can help you put some hard numbers around the performance of your systems.

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