In Honor of the 50th Anniversary of Earth Day, Green Tech Manufacturer Envision Solar Awards More Than 40 Government Organizations, Universities and American Corporations With the Heroes 2020 Award SAN DIEGO, April 22, 2020 (GLOBE NEWSWIRE) -- Envision Solar International, Inc., (Nasdaq: EVSI, EVSIW) (“Envision Solar,” or the “Company”), the leading producer of unique and sustainable...