The Solar Butterfly caravan is back in Switzerland after its world tour. In the course of a four-year journey, the solar-powered vehicle developed by Lucerne students travelled through 47 countries. +Get the most important news from Switzerland in your inbox The project leader, Swiss solar vehicle adventurer Louis Palmer, arrived on the campus of the Lucerne University of Applied Sciences and Arts in Horw on Thursday. He began his journey aboard the Solar Butterfly in May 2022, after a first round-the-world trip in 2007-2008 at the wheel of a solar taxi. + “Solar taxi” starts record trip round world Solar Butterfly has covered almost 96,000 kilometres over the last four years, crossing 47 countries on five continents. In all, 44 people were part of teams that took turns every month. The caravan visited schools and businesses to promote its cause: it brought together innovative projects aimed at solving the climate crisis in an on-board exhibition. Palmer said the high point of the ...
