Midsummer celebrates the grand opening of the world-leading solar energy technology research and development facility in Sweden (WK-intern) - Stockholm, Sweden - Midsummer, one of the world’s leading developers and suppliers of advanced thin film building integrated solar solutions, yesterday celebrated the opening of its new state-of-the-art solar energy technology research and development facility together with a new production line for building integrated solar roofs in Järfälla, Sweden. Sweden’s first astronaut, Prof. Christer Fuglesang formally inaugurated the new facility in the presence of solar energy industry leaders, media, clients and partners. “I find Midsummer´s technology very exciting,” said Christer Fuglesang, astronaut and Professor