… a frequent contributor to energy and sustainable publications, and has spoken at numerous conferences across the country over the last 30 years (NESEA Building Energy, Affordable … a frequent contributor to energy and sustainable publications, and has spoken at numerous conferences across the country over the last 30 years (NESEA Building Energy, Affordable … a frequent contributor to energy and sustainable publications, and has spoken at numerous conferences across the country over the last 30 years (NESEA Building Energy, Affordable …