The iSERVcmb project has now been completed and has a number of findings to report.
Inspection of HVAC Systems through continuous monitoring and benchmarking
How should you describe a building to reduce its energy use?
Physical asset descriptions allow actions to be focussed
Understand what connects to what
Common format to allow comparison between buildings and systems throughout Europe
How much energy and power should my building services systems use?
Measured figures for operational energy use and power demands from EU buildings and systems
What happens when you understand where the energy goes?
Better control
Sustainable energy savings
Confidence to invest
The industry's view
"iSERVcmb is the independent evidence which can sort out the wheat from the chaff.”
John Woollett, Swegon AB
The iSERVcmb database provides a good first step on the road to help ensure healthy sustainable buildings for the next generations of people working in our city based economies.”
Peter Dyment, Camfil Farr Ltd
Click here for the iSERVcmb - Priority Schools Building Programme
Read the iSERV Flyer

The iSERV procedure is now being run by K2nenergy Ltd. Please contact them at or visit for more details.

Welcome to the iSERVcmb project website

Professor Ian P. Knight
Project Coordinator

Welsh School of Architecture, Cardiff University

The IEE-funded part of the iSERVcmb project is now complete.

This website is structured to reflect the final report for the project, which is available in full and with links to more detailed information at The website also reflects the final newsletter for the project which can be found at the link at the bottom of this page.

The main findings from the project are that:

  • The proposed process leads to significant savings in operational buildings across Europe – with annual electricity savings of up to 5% of the total EU electrical energy use appearing possible.
  • The iSERVcmb spreadsheet can be used for all buildings and HVAC systems across Europe
  • The project has produced a unique set of measured data on energy use and power demands in HVAC sub-components servicing given end use activities across Europe
  • Energy Conservation Opportunities are capable of being identified from sub-hourly data
  • Physical Inspections and Indoor Air Quality studies have confirmed that continuous use of metered data can be used to benchmark the performance of buildings and systems
  • The approach and data is of interest to Building Services Professional Bodies in providing guidance to their members on improving the operational energy efficiency of building services

All the main Actors sectors from across Europe, with an interest in reducing the operational energy use of buildings and their building services, have participated in and/or contributed to the shape and findings of this project.

I am currently working on future project proposals using the iSERVcmb findings and methodology and would be interested in hearing from potential partners who think they could help in these proposals. Please contact me on my email address.

In the meantime, I hope you find the current project outputs useful and interesting.

Ian Knight