The sun21 crew at the press conference after their arrival in New York (Beat von Scarpatetti, David Senn, Michel Thonney, Martin Vosseler, Mark Wüst, from the left)
Arrival in New York City
The mayor of Miami, Manuel A. Diaz, presents the crew the Keys to the City of Miami.
Arrival at Martinique.
The sun21 heading to Martinique.
On the way to the Canary Islands.
Due to a storm the sun21 sought refuge in the harbour of Casablanca (Morocco).



The association was founded in December 2005 for the sole purpose of financing and implementing the project. The association is responsible for the management and communications. Financing is guaranteed by a group of individuals.

>> who is who


sun21 is an association founded in Basel in 1997. It advocates efficient energy use and promotes renewable energies. sun21 organizes an annual forum for experts and events for the public. The solar boat was given the name "sun21" in honor of the 10-year jubilee of sun21.


MW-Line SA

MW-Line SA, a private enterprise based in Yvonand on the lake of Neuchatel, is an international pioneer in the development and construction of solar boats. Since 1991, the team has built more than a dozen large passenger boats. Of special interest were four catamarans ordered by the National Exposition Expo 02. MW-Line is responsible for the concept, the construction and the captainship of the boat.


transatlantic21 is also a project of partnerships. It relies on a broad platform of support and, at the same time, the pioneer spirit and the interesting boat offer attractive possibilities for communication. More partners and ideas are welcome.