In 2012, the U.S. Department of Energy began work on the development of a voluntary national scoring system used to quantify commercial building’s energy efficiency.
Officially launched October 2013 as an alternative to HPDS, the PTD will be developed through the ANSI process by a balanced group of stakeholders in an open, consensus-based process.
I began my multi-year involvement with LEED and the USGBC as an architect dedicated to the design of greener buildings at about the time the LEED v1.0 pilot program was coming to a close.