GR63 — 63 ft Fully Electric Offshore Catamaran
Sea trials completed — 2026
The platform
Imagine never having to come back. No fuel dock, no engine noise, no schedule — a boat that feeds on sun and wind, and keeps going.
The GR63 lives at sea on sun and wind alone. 11.5 kW of solar, two 6 kW wind turbines and a 282 kWh battery bank drive two 110 kW ePropulsion motors — with methanol fuel cells as backup. No diesel aboard.
A 31-tonne lightship hull in basalt, carbon and aramid composites, with titanium deck structures. Designed to CE Category A — certification in progress.
Every system was chosen for energy efficiency and built with redundancy. An automated hydroponic garden in the forepeak is ready to grow fresh greens at sea.
Total autonomy for boundless adventures and ultimate freedom
Powered by sun and wind
Freedom, on a boat, has always had a price: the next fuel stop. The GR63 removes it.
The GR63 draws its energy from 11.5 kW of solar, two wind turbines and a 282 kWh battery bank, with methanol fuel cells as backup. It cruises in silence, with no diesel and no fuel costs.
Robustness
Built to go offshore
Hull and structures in basalt, carbon and aramid composites — a 31-tons lightship built to withstand collision with floating objects. Titanium deck hardware throughout. Designed to CE Category A.
Innovations
To our knowledge, the GR63 is the first leisure catamaran to bring together solar glazing, a retractable solar awning, magnetic-levitation wind turbines and methanol/water fuel cells in a single self-sufficient platform
The GR63 combines technologies rarely brought together at this scale — from AI-managed energy architecture to magnetic-levitation wind turbines and an automated hydroponic garden.
Anchor anywhere. Stay as long as you like.
The GR63 makes its own power, its own water
even its own greens.
Partnership
The GR63 platform is proven at sea. Its intellectual property is fully owned. Discussions are open with a limited number of European yards for licensed production or co-development.
mail to: info@gillesreigner.com
CREDITS
- Naval architecture: Fortabat Yacht Design.
- Electric propulsion, batteries & eSSA energy management: ePropulsion.
- Photos and video: Ananas.video Hua Hin