Trisomar is a concept design of a leisure trimaran powered by wind and energy from photovoltaic cells.
The solar panels are placed on surfaces between the outriggers and on their ends. Additionally, each solid sail is covered with photovoltaic foil.
During weak wind or if there is no wind at all, the yacht moves thanks to 2 electrical engines. The engines can get 65HP from solar energy, which is quite sufficient to guarantee comfortable leisure sailing.