Carbon Neutral Yacht

Introducing the world’s first “carbon neutral yacht,” the Emax Excalibur. The fly-bridge features a photo-voltaic exoskeleton that can harvest and return enough energy per year to offset up to 3,000 nautical miles! The Emax Propulsion System delivers advanced hybrid diesel power by combining the new VW Marine 350TDI v8 and GM Allison duel mode hybrid transmission- a revolutionary first step in the maritime industry.


  • Overall Length; 22m
  • Beam; 5m
  • Draught; 0.9m
  • Displacement; 38tons
  • Hull; Epoxy Carbon Kevlar Composite
  • Fuel; 3,000 liters (Range at 22knts 1,000nm)
  • Lithium ion Battery; <200Kw
  • Emax Propulsion; 2xV8 VWTDI350 / GM Allison Hybrid Transmission
  • Power; 2x350Kw
  • Drives; 2xZeus Duo-prop
  • Plug-in; Return to Grid over 50MWs per year
  • Max speed; 30knts
  • Cabin; 3 Doubles 1 Single

Designer: Sauter Design


  • Quintin says:

    Very nice! More solar powered yachts need to be built.

    I’m curious as to how the power to be generated by the solar panels on this ship was calculated.
    You’d have to point them at the sun to take the manufacturers quoted numbers, which is impossible while they’re integrated into the ships hull…

  • eddd says:

    yeah, but it does look cool

  • Rohan says:

    @ QUINTIN – the solar panel are all located that face the sun…i dont see the confusion here….If you see the picture of the 4 plan vies, it clearly demonstrates the placement of solar panels….

  • Quintin says:

    @ Rohan: more than half of the solar panels are on the sides of the ships hull. Not directly facing the sun, quite some degrees from the position required for optimum efficiency.

    @ Richart Sauter: Yes, but only the ones facing the south. The ones on the other side are then in the shadow and only ‘harvest’ some of the reflections from waves.

    Have you done simulations/real life tests? I’m really interested in how much energy could be generated on a ship. I’m planning a smallish (10 to 12 meter) DIY boat/yacht with an electrical motor powered by batteries and solar panels.

  • At sea light reflects off the water in every direction and is magnified by evaporated water mist in the air. Hence Solar Panels are up to 40% more efficient at sea then on land

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