meet our team


van calvez



Van (aka V) is a Composting Systems Engineer at Green Mountain Technologies specializing in developing in-vessel composting technologies for smaller communities and organizations.

Van loves to share his 20+ years of composting expertise to help organizations successfully compost. Van provides systems design/engineering, technical support, sales, installation, training and customer service for our in-vessel systems. Van has an MS in Systems Engineering/Human Factors Engineering and a BS Human Factors Engineering from Wright State University. At home, V manages multiple community-based composting systems and enjoys making compost and building community and soil fertility.

V is a major composting toilet enthusiast. He has managed composting toilets for festivals under the name Holy Sh*t!. V also creates artwork related to compost and has a community art project called the Compost Mandala that involves painting with compost. V also dance, improv sound making, painting, performance, and arts of all flavors.