A conceptual model of energy performance contracting : an alternative solution to retrofit existing buildings

P. Lee, Tsun Ip Lam

Research output: Journal article publicationJournal articleAcademic research


Energy Performance Contracting (EPC) projects provide building owners (the client) with a turnkey retrofit in their existing buildings as energy service company would assist clients to identify energy saving potential, design and install energy conservation measures (ECMs), monitor performance of installed ECMs, as well as train operators for better system operation. In order to promote the wider use of EPC, this paper proposes a model of EPC which enables building owners and energy service companies to identify and address the key issues when implementing EPC projects, starting from the stage of pre-retrofit, installation, to post-retrofit. This proposed model is developed based on the extensive literature review, questionnaire survey findings, as well as semi-structured interviews with the key stakeholders in Hong Kong. The model consists of 12 Building Blocks, including risk assessment of energy saving shortfall and contract management.
Original languageEnglish
Pages (from-to)109-116
Number of pages8
JournalInternational journal of architecture, engineering and construction
Issue number2
Publication statusPublished - 2015


  • Energy performance contracting
  • Energy service company
  • Retrofit
  • Energy
  • Building

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