On June 11th and 12th, Sunpower Builders and Jon Costanza participated in the Solar and Wind Expo at the Valley Forge Convention Center. The Expo was well attended and showcased a variety of vendors, all specializing in the sustainable market, including producers, financiers and top experts in the field.
Jon Costanza was a popular speaker, engaging attendees with two presentations; “Solar Homes, 1711 – 2011: From Commonsense to Green Building, and “ 4 Decades of Solar and Ecological Design and Construction: A Practical Perspective. One listener, hoping to speak to Jon personally after his Sunday talk said, Costanza was “extremely informative and the speech was packed with useful information”.
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