Catamarans

MODX 70

Price on request

The MODX 70 is a 21.33-metre, 10-metre-beam electric catamaran from the French builder MODX, combining a 250 kWh battery bank and 80 kW of electric propulsion with roughly 70 square metres of solar panels, retractable Aeroforce automated wing sails and hydrogeneration under way. It is laid out in five cabins for up to twelve people, with a quoted 15-knot top speed and 110 nautical miles of range under motor at 5 knots. The boat shown at Cannes in 2026 is a prototype rather than a production vessel, and MODX publishes no price.

Specifications

Length: 21.33 m
Beam: 10 m
Weight: 30,000 kg
Passenger capacity: 12
Battery: 250 kWh
Motor power: 80 kW
Top speed: 15 knots
Range: 110 nm

Powertrain options

Motor/battery details not disclosed
Motors
2x
Power
80 kW
Battery
250 kWh
Top speed
15 kn
Range
110 nm
Electric catamaran with 80 kW of electric propulsion and a 250 kWh battery bank, charged under way by roughly 70 m² of solar panels and by hydrogeneration, with MODX's retractable Aeroforce automated wing sails as a second power source — figures as published in MODX's own brochures and recorded in this catalogue; the builder's site itself carries no specification table (read on 17 October 2026). Range 110 nm is published without a stated speed, so none is recorded beside it. No charging time and no price are published.

Our take

What a buyer should know

What the energy system actually means

The MODX 70 is best read as a sailing catamaran with an unusual rig, not as a battery boat. The 110-nautical-mile motoring range at 5 knots is what the 250 kWh bank buys on its own; the point of the wing sails, the solar array and hydrogeneration is that the pack is meant to be refilled under way rather than run down. On a boat used the way it is designed to be used, the battery figure is a reserve, not the range. Owners who intend to motor most of the time will find the numbers modest for a 21-metre vessel.

Who it suits

Charter operators and owners with a genuine commitment to low-emission operation, who are willing to work with wind and to accept an automated rig with more mechanism than a conventional sailplan. It is not a boat for anyone who wants to press a throttle and arrive.

Caveats, and they are substantial

This is a prototype shown at Cannes 2026, not a production boat with a delivery history. Displacement is stated as 30 tonnes by MODX but reported at 23 tonnes by Multihulls World — a seven-tonne discrepancy on a vessel whose entire case rests on efficiency, and it must be resolved before any performance claim is taken at face value. There is no published price. Treat this as a project to be evaluated with a surveyor and a lawyer, not a catalogue purchase.

Written from the builder’s published specifications and the wider market, not from testing the boat ourselves. Always confirm figures with the manufacturer before committing.

Recognition