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Editorial advisory panel George Adams, engineering director, Spie Matthew Hall Laurence Aston, director, Buro Happold
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Christopher Pountney, graduate engineer, AECOM
Alan Tulla, president, the Society of Light and Lighting
Ged Tyrrell, managing director, Tyrrell Systems Ant Wilson, director, AECOM Morwenna Wilson, graduate engineer, Arup Terry Wyatt, consultant to Hoare Lea
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The energy saving figures do add up
T
he Great British Refurb should be at the top of the government’s agenda and the centrepiece of the nation’s attempts to meet its emissions-cutting targets, right?
Removing the need for high energy use in the first place is the best economic approach to cutting emissions
Most of those attending last month’s CIBSE national conference would probably have answered ‘yes’ to such a question if they’d been polled on it. But their conviction on this issue may well have received a jolt from the dry facts and figures presented by one of the speakers, Simon Harris, a senior cost consultant. Harris’s number-crunching showed that, for large commercial buildings, the cost of making significant improvements can be very high, the payback can take decades – and a building’s Display Energy Certificate may be taken only one notch higher (rising from a G to an F rating, in one case study cited by Harris). This seemed like a grenade being quietly thrown into the conference arena – the event, after all, was focused on ‘the great refurbishment challenge’. However, the key messages from the wide range of conference speakers and delegates did add up to a robust defence of refurbishment as central to cutting emissions. The real economic basis for this approach is not that refurbishment simply may not be ‘cost-effective’: it is that policymakers and the built environment sector need to ensure both refurbishment and new-build projects take a ‘fabric first’ approach, reducing the requirement
for expensive fitting and retrofitting of high-maintenance technologies that may not, in fact, do the job. In other words, removing the need for high energy use in
the first place offers the best economic approach to cutting emissions in coming decades. The key message is: we need to be raising the bar on refurbishments now, and keep raising it. Educating and incentivising property owners and developers to adopt this approach is the right way forward. There really is no alternative.
Bob Cervi, Editor
bcervi@cibsejournal.com
www.cibsejournal.com
May 2011 CIBSE Journal
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