Thanks to it great expertise in hydrogeneration field, watt&sea can provide R&D services for your custom projects :

  • hull integration of hydrogenerators.
  • adaptation to other flow conditions : very low speeds or very high speeds.
  • design of waterproof motors for specific applications (Watt&Sea is the official supplier of motors for the student contest HYDROCONTEST)


Watt&Sea uses modern CAD software and Solidworks license

Hull Integration

Studies and exchange with architects and boatbuilders for better integration of products.

Design Of Blades

Watt&Sea can design custom blades or propellers with BEM code specifically adapted to generation in free-flow or forced-flow (pipe)
This allows adaption to other fields like slow rivers or fast multihulls
We have a network of subcontractors to realize fast prototyping in stainless steel, aluminium or plastic.

Few Realisations

  • 2017 : high speed blade design for trimaran ULTIM
  • 2017 : variable pitch blade design for the VOLVO OCEAN RACE
  • 2016 : pipe integration of hydrogenerator for Spindrift giant trimaran
  • Banque Populaire UK 400×300

    • 2015 : pipe integration of hydrogenerator IMOCA Banque Populaire, winner of the Vendée Globe 2016

3 rue Jacques Cartier
17000 La Rochelle

+33(0)5 46 41 31 99