A plywood boat built in a shed for about 20,000 dollars has crossed Europe from the Baltic to the Spanish coast on sunlight alone, and its motor can still draw twice what the solar panels on its roof make

The boat comes past and you hear the water before you hear the boat. There is no exhaust note, no fuel smell, no wake worth naming. The roof is a flat sheet of dark blue glass. Underneath it are a bed, a galley and a motor, and the whole thing has come from the Baltic to the Spanish coast without ... Read more