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January 3, 2017 Update to “SWL Tools” adds Energy Balance Index
SWL Tools is an Excel workbook for net-zero and plus-energy design, keyed to the book  Developed by the latest version adds the ability to calculate a new measure of building performance, the Energy Balance Index (EBI), which allows to be expanded beyond the year 2030 Carbon-Neutral goal into net-zero energy and plus-energy performance. Net-zero buildings produce energy on site equal to their consumption, on an annual basis. Plus energy buildings are net energy exporters and produce more energy on-site than they consume.
The new version (v6) of SWL Tools, written with the assistance of B.Arch research assistant , can be downloaded from DropBox  OR, if all goes well, from here: . Prof. DeKay’s full publications can be found on.
