Paper Conference

Proceedings of Building Simulation 2017: 15th Conference of IBPSA


Improving the Energy Performance Contracting Process using Building Performance Simulation: Lessons Learnt from a Post Occupancy Investigation of a Case Study in the UK

Nishesh Jain 1, Esfand Burman 1, Dejan Mumovic 1, Michael Davies 1, Andrew Tindale2
1UCL Institute of Environment Design and Engineering, University College London, London, UK
2DesignBuilder Software (DBS) Ltd., Stroud, UK

Abstract: There is a niche trend to use ‘Energy Performance Contracts’ (EPCs), for new buildings to ensure that minimum energy performance is achieved in practice. Building Performance Simulation (BPS) help to estimate performance and assess risks during design, construction and operational stages. This paper reports on an office building in the UK that has been procured under an EPC. The current performance shows that it will be challenging for the building to achieve the target. Being one of the first new buildings in the UK to be subjected to an EPC, analysis of the design, construction and operation process, provides insights into the specific issues related to building procurement and operation. It is suggested that scenario analysis, accounting for uncertainties and dynamic BPS should be used throughout the procurement process to quantify and manage the risks associated with performance targets. The paper also identifies that if performance targets are not defined comprehensively, there can be unintended consequences that lead to underperformance.
Pages: 902 - 911