Solar and electric powered boats are coming of age. The alternative powered vessels on show in Berlin come at a time when many petrol-engined boats have been banned from some of Europe’s waterways. This might look like any other boat on the market. But instead of a petrol or diesel engine, this one is powered by the sun. The “23 Solar” from Polish company My Boat is a standard 7.8 metre long hobby boat, made for day trips on lakes, canals and the sea. It is not a race boat. With a top speed of about 10 km/h it won’t particularly impress those who love to speed across the water. But it is powered by two solar panels on the roof which is enough to power the 35, 531 US Dollars on sunny days.