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).


Jan 28, 2007: Free energy from the sky

26°C / 79°F
Position:16° 00' 108'' N-53° 32' 138'' W
Wind: 10km/h

How come that we are the first five "Helionauts" crossing the Atlantic with solar energy?

A usual sunny day in January – we are charging 898 Ampèrehours (Ah). The capacity of the batteries is 1000 Ah. The sun provides almost a whole battery charge in one day. How come that we are the first five "Helionauts" crossing the Atlantic with solar energy? How come that the Swiss MW-line company, which constructed the "sun21", is not overflowed with orders for their fantastic solar boats? How come that the business people do not queue up in order to invest into this sustainable technology – energy that is abundant and comes free from the sky? How come that people do not seem to have discovered the unique comfort of a solar nautical vehicle yet – silent, almost no vibration, no pollution, soothing shade under the solar roof, calm proof, self-sufficient?

This morning clusters of a seaweed (brown algae, probably Phaeophycea Sargassum) passed our boat – are these signs of approaching land? In any case the "sun21" is a sign for the breakthrough of the solar age.

Wind: NE Beaufort 2 – 3
Waves: Up to 6 feet
Mileage: 93 miles per 24 hours


I am incredibly inspired by your story> I have just obtained a local houseboat, which is in need of a new propulsion system.......I would very much like to explore my current solar set-up possibilities for this boat for the future.I think it would be ideal as there is plenty of roof space(for panels) and plenty of engine room for batteries.Could you point me in the right direction for the latest information on panels and batteries........I would love to be one of the first in my area to promote this part of our future....with your help.........already commuting daily on an electric scooter........Congratulations on your example to the world ......lets make life better and beautiful for "ALL"