Brands & Models / Sunreef / 80 Sail Eco-Option
Sunreef 80 Sail Eco-Option: The Sailing Catamaran That Changed the Game
78 feet of silent, solar-powered cruising with 343 square meters of customizable space. The Sunreef 80 Eco is not a concept. It is the most advanced electric sailing catamaran on the water, built for owners who want autonomy, not applause.
The Essentials
| Feature | Specifications | |
|---|---|---|
| Overall Length | 78 ft 3 in | |
| Beam | 37 ft 9 in – 38 ft 0 in; Eco spec: 11.53 m / 37.8 ft | |
| Draft | approx. 5 ft 11 in – 5 ft 11.5 in | |
| Displacement (Unladen) | Around 45 t (standard 80 Sail); Eco adds large battery banks and solar skin | |
| Engines | Classic sail: 2 × 225–280 hp diesels; Eco sail: twin 180 kW electric motors with 760 kWh battery bank (+ optional gensets) | |
| Fuel Capacity | 1 × 2,400 L to 1 × 6,000 L (approx. 634–1,585 US gal) depending on config | |
| Water Capacity | 1,600 L (about 422 US gal) | |
| Cabins / Heads | Typically 4–5 guest cabins (8–10 guests) + 4–6 crew; Eco up to 12 guests in some layouts | |
| Max Speed | Up to 20+ knots under sail; Eco electric 8–10 knots; higher on diesel hybrids | |
| Cruise Speed | 8–10 knots |
Source: Spec & Photos courtesy of Sunreef Yachts.
“
The Sunreef 80 Eco is the first electric sailing catamaran that does not ask you to compromise. The battery capacity is real. The solar integration is seamless. The hydrogeneration system works. This is not a prototype. It is a fully developed platform with multiple hulls in service, and the feedback from owners has been consistently positive. The build quality is on par with the best European yards, and the systems integration is better than most. If you are serious about electric propulsion, this is the benchmark.
This boat is for the experienced cruiser who understands the trade-offs. You are paying a premium for the electric system, and you are betting on a technology that is still evolving. But you are also getting a boat that can anchor for weeks without running a generator, cruise in silence, and operate with a fraction of the environmental impact of a traditional diesel cat. If you value autonomy and are willing to manage the systems, the 80 Eco will deliver. If you want plug-and-play simplicity, stick with diesel.
The resale market for electric catamarans is still forming, but early indicators are positive. Sunreef has delivered multiple 80 Eco hulls, and the yard has a strong reputation for support and service. Maintenance costs are lower than diesel equivalents, but you will need to budget for battery replacement in 10 to 15 years. The bigger risk is obsolescence. Battery technology is improving rapidly, and the system on a 2026 hull may look dated by 2035. But if you plan to keep the boat for 7 to 10 years, the 80 Eco is a solid investment in the future of cruising.”
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