Bright green vines snake upwards 20 feet (six meters) toward an umbrella of solar panels at Josef Wimmer’s farm in Bavaria.
He grows hops, used to make beer, and in recent years has also been generating electricity, with solar panels sprawled across 1.3 hectares (32 acres) of his land in the small hop-making town of Au in der Hallertau, an hour north of Munich in southern Germany.
