The Intersolar North America conference and exhibition runs July 11 through 14 in San Francisco. While Intersolar North America was established in 2008, the company behind the tradeshow, Solar Promotion International, has been organizing Intersolar events globally for 25 years. This photo gallery takes a look back and across four continents at Intersolars past and present. Before you scroll, click play on the podcast directly below to hear an interview with Solar Promotion International CEO Markus Elsässer, previewing the upcoming Intersolar North America exhibition.
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