No. 1 (yacht)

{{Infobox ship begin}} {{Infobox ship career |Hide header= |Ship country= |Ship flag= |Ship name=No. 1 |Ship ordered= |Ship builder=Beneteau, in partnership with MTU Friedrichshafen |Ship owner=IPF Energie- und Umwelttechnik GmbH |Ship original cost= |Ship laid down= |Ship launched= |Ship acquired= |Ship commissioned= |Ship decommissioned= |Ship in service= |Ship out of service= |Ship renamed= |Ship struck= |Ship reinstated= |Ship honours= |Ship captured= |Ship fate= |Ship status= |Ship maiden voyage=August 2003, Japan |Ship homeport=Kressbronn, Lake Constance |Ship notes= }} {{Infobox ship characteristics |Hide header= |Header caption= |Ship class= |Ship length={{convert|12.26|m|ft|1|abbr=on}} |Ship beam={{convert|3.76|m|ft|1|abbr=on}} |Ship draught= |Ship draft= |Ship hold depth= |Ship sail plan= |Ship power=6 kg of hydrogen in 3 hydrogen tanks at 300 bar, four 1.2 kWa |Ship propulsion= |Ship speed={{convert|7|kn|km/h|0|lk=in|adj=on}} by fuel cell/electric |Ship complement= |Ship armament= |Ship notes=First fuel cell-powered yacht }}

No. 1 is a sailing yacht which is power-assisted by an electric motor that gets its electricity from hydrogen fuel cells. It is the first ever yacht to be fuel cell-powered.{{cite journal|title=First yacht with certified fuel cell propulsion|journal=Fuel Cells Bulletin|volume=2003|issue=12|year=2003|pages=4–5|issn=1464-2859|doi=10.1016/S1464-2859(03)00015-4}} The boat was certified under the Germanischer Lloyd guidelines for fuel cells on ships and boats.[https://web.archive.org/web/20200706144051/https://best-store-us.com/gl-rules-for-classification-and-construction/ GL- Rules for classification and construction]US Department of Energy. "[http://www1.eere.energy.gov/hydrogenandfuelcells/pdfs/specialty_vehicles.pdf Specialty Vehicles] {{webarchive|url=https://web.archive.org/web/20060929021405/http://www1.eere.energy.gov/hydrogenandfuelcells/pdfs/specialty_vehicles.pdf |date=2006-09-29 }}" The yacht's debut was in August 2003 in Japan, and it is commissioned at Lake Constance (Kressbronn am Bodensee).

MTU Friedrichshafen, the company that designed the boat's power system, has said that it views a move towards fuel cell-based power systems as logical given the demand for clean, quiet energy sources in leisure craft such as yachts.[http://magazines.marinelink.com/tags/technology/fuel-cell-technology Fuel cell technology]