High Quality Content by WIKIPEDIA articles! The Yacht XV 1 is a hydrogen sailing yacht, power-assisted by an electric motor that gets its electricity from a fuel cell. The debut was in March 2004 at Ventura harbor, (Ventura, California). An onboard system, 2 solar panels 400 Watt, wind generator 90 watt, regenerative electric drive motors a reverse-osmosis watermaker and a deionizing filter to convert purified sea water to hydrogen fuel. When under sail the propeller is used to generate 500 watt of electricity for the electrolysis of water. Boat 42 foot long, 17 kg of hydrogen in a metal hydride hydrogen tank, a 10 kW PEM fuel cell, radius of action 300+ miles at 8 kts on a full tank.