Tesla boss Elon Musik arrived in Germany on Wednesday for a short visit to the electric carmaker’s only European plant, located just outside of Berlin, about a week after an attack on the site’s electricity supply. Production at Tesla’s so-called “giga-factory” in the town of Grünheide was brought to a standstill for several days due to a sabotage attack on the plant’s power supply. A left-wing extremist group has claimed responsibility for the attack. The previously unknown Volcano Group declared that it was responsible for setting fire to an electricity pylon that serves other businesses and…