In a recent issue, I was quoted as saying that LEED certification can be reached without considering energy points.

That was in the context of describing studies I published in the Journal of Green Building, showing wide variations in energy and environmental impacts of LEED buildings.

The study was based on a sample of LEED points achieved by buildings before 2007. I was explaining how the variation we found was owing, in part, to individuals not having considered energy points (they achieved certification through other categories).

The LEED system began to require energy-related points for new projects in the latter half of 2007

Doug Crawford-Brown

Unfortunately, I failed to make it clear that this comment applied to the sample of LEED projects we modelled. Although this is still true for the sample (past projects will not consider energy points retroactively), the LEED system began to require energy points in 2007. As an advocate of LEED and its move to energy points, I’m concerned that I caused confusion.

Postscript

Doug Crawford-Brown, Pell Frischmann

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