Forty-five years of practicing architecture and sustainable design. Architect for two of the first twelve LEED Pilot Projects. Member of USGBC LEED Core & Shell Version Committee. Presenter at numerous conferences for organizations such as AIA, USGBC, Penn State Housing and Passive House. Involved as architect or consultant in forty+ environmentally responsible projects. Designed and constructed our own PHIUS+ Certified Passive House which we just upgraded to Net Zero energy usage.