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S-curves to model and visualise the energy performance gap between design and reality – first steps to a practical tool

Bunn, R; Burman, E; (2015) S-curves to model and visualise the energy performance gap between design and reality – first steps to a practical tool. In: Proceedings of the CIBSE Technical Symposium 2015. Chartered Institution of Building Services Engineers (CIBSE): London, UK. Gold open access

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Abstract

New and refurbished non-domestic buildings are failing to live up to their anticipated performance. Shortfalls show in excess energy consumption, high carbon dioxide emissions and other failings in quantitative and qualitative performance metrics. This paper describes the component parts of the performance gap using evidence from building performance evaluations. It introduces a way of visualising the consequences of decisions and actions that are known to compromise performance outcomes using a performance curve methodology (the S-curve) which plots performance, and the root causes of underperformance, from project inception to initial operation and beyond. The paper tests the hypothesis with two case studies. The authors conclude that use of S-Curves could visualise performance problems before they become chronic shortcomings, and could be useful for informing activities on Soft Landings (1) projects.

Type: Proceedings paper
Title: S-curves to model and visualise the energy performance gap between design and reality – first steps to a practical tool
Event: CIBSE Technical Symposium 2015
Location: University College London
Dates: 16 April 2015 - 17 April 2015
Open access status: An open access publication
Publisher version: http://www.cibse.org/Knowledge/CIBSE-Technical-Sym...
Language: English
Keywords: Performance gap, energy, Soft Landings, S-curve, visualisation
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of the Built Environment
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of the Built Environment > Bartlett School Env, Energy and Resources
URI: https://discovery.ucl.ac.uk/id/eprint/1469748
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