A Methodology to Address the Gap Between Calculated and Actual Energy Performance in Deep Renovations of Offices and Hotels

  • Robert CohenEmail author
  • Greg Waring
Conference paper
Part of the Springer Proceedings in Energy book series (SPE)


A European Commission-funded Horizon 2020 project named ALDREN (ALliance for Deep RENovation in buildings) aims to establish the business case for deep renovation. The 30 month programme which started in November 2017 intends to encourage investment and accelerate the movement towards a nearly zero energy non-residential building stock across the EU, as targeted by 2050 to meet Paris Agreement commitments. The back-bone of ALDREN is the EVCS (European common Voluntary Certification Scheme) (Ribeiro serrenho T, Rivas Calvete S and Bertoldi P Cost-benefit analysis of the EVCS implementation, EUR - Scientific and Technical Research Reports, 2017) which will be used to track the deep renovation process. This paper describes the processes and tools being developed to close the gap between calculated and measured energy performance (EP):
  1. 1.

    A framework allowing measured (operational) performance to be compared with predicted (design) performance across all the countries in the ALDREN consortium using a harmonised approach and common language fed by a glossary of terms.

  2. 2.

    A “design for measurability” protocol that tracks the actions required during the deep renovation process, to ensure that performance predictions are as realistic as possible, that the construction and commissioning process is true to the design intent, and allowing the predicted performance to be verified through measurements.

  3. 3.

    A performance verification tool, which allows the predicted and actual (measured) performance to be compared at different levels of granularity.


The paper concludes that nearly zero energy performance targets can become measured outcomes, where driven by client leadership and wider team buy-in, and using the power of advanced simulation of HVAC systems to optimise design and ensure operation is aligned with the design intent.


Energy performance verification Model calibration Deep renovation Office buildings Hotels 



The ALDREN project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 754159.


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Copyright information

© Springer Nature Switzerland AG 2020

Authors and Affiliations

  1. 1.Verco Advisory Services Ltd.CorshamUK

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