Building energy and cost performance: An analysis of thirty Melbourne case studies

Langston, Y L and Langston, C (2007) Building energy and cost performance: An analysis of thirty Melbourne case studies. Construction Economics and Building, 7(1), pp. 1-18. ISSN 2204-9029

Abstract

This study investigates the energy and cost performance of thirty recent buildings in Melbourne, Australia. Commonly, building design decisions are based on issues pertaining to construction cost, and consideration of energy performance is made only within the context of the initial project budget. Even where energy is elevated to more importance, operating energy is seen as the focus and embodied energy is nearly always ignored. For the first time, a large sample of buildings has been assembled and analyzed to improve the understanding of both energy and cost performance over their full life cycle, which formed the basis of a wider doctoral study into the inherent relationship between energy and cost. The aim of this paper is to report on typical values for embodied energy, operating energy, capital cost and operating cost per square metre for a range of building functional types investigated in this research. The conclusion is that energy and cost have quite different profiles across projects, and yet the mean GJ/m2 or cost/m2 have relatively low coefficients of variation and therefore may be useful as benchmarks of typical building performance.

Item Type: Article
Uncontrolled Keywords: melbourne buildings; capital cost; embodied energy; operating cost; operating energy
Index terms: capital cost, cost performance, Australia, embodied energy, building design, building performance, life cycle, case study, variation, construction cost, operating cost, energy performance
Subjects: quality assurance, economics, value management, Geography, accounting and finance, data collection methods, architectural design, energy systems, contractual condition, economic analysis, financial and cost management
Topics: Quality Management, Geographical Context, Business Strategy, Sustainability, Contract Administration, Project Management, Research Practice, Design Practice, Cost Management
Descriptive scope: 3 PCE

N.B. Descriptive scope is a count of how many of the five facets of empirical research are indicated by the words used in title, abstract and keywords. It is not intended as a judgement on the research; merely a count of the kind of word we would expect to indicate Phenomenon, Concepts, Theoretical framing, Empirical techniques, Analytical techniques. If all five are present, then a code of “5 PCTEA” will indicate this. If you feel the coding for this record is questionable, we welcome discussion around the terms we matched or the way we categorized them. The facet you would expect may not be coded, or a facet may be coded inappropriately. This can also bear on a larger question, of which facets should be treated as defining in construction management research. Please get in touch, and we will look at it. More details here