Envision Solar Announces Major Technology Advancement for Solar Tree® Array

SAN DIEGO, CA (August 16, 2012) – Envision Solar International Inc. (www.envisionsolar.com) (OTC BB:(EVSI – NEWS), the leading solar shaded parking array designer and developer, today announced that the company has successfully completed the engineering and manufacturing of its first run of pre-cast concrete columns for its Solar Tree® arrays. The first such pre-cast columns [...]