25 July 2026 · Yotters, independent yacht media
Yotters
Sunreef · Eco Sailing

Sunreef 70 Eco

The Sunreef 70 Eco is the yard's best-known solar-electric sailing catamaran, a 70-footer built for year-round cruising in real comfort. Its hulls and superstructure carry a vast integrated solar array that keeps the yacht silent at anchor. Each one is drawn around its owner in Gdansk.
CatamaranSolar-electric sailing catamaran21.4 m LOA

The heart of the sailing range

The 70 has become the signature Sunreef sailing catamaran, the size at which the yard's ideas come together most completely. It offers the volume for a full owner's party and crew while staying manageable for long passages. Above it sit the 80 and the 100, below it the 60 and the 50. Many owners find the 70 the sweet spot of space, range and running cost. It is the boat that made Sunreef a household name among sailors who want a home afloat.

Every 70 is bespoke, and the Eco solar-electric version is the one that defines the model today. The yacht accommodates up to ten guests in three to five cabins with en-suite bathrooms, plus quarters for up to three crew. That flexibility lets an owner configure the boat for family, for charter or for extended private cruising. The build quality is superyacht grade at every turn. No two 70s are alike, because each is drawn around the way its owner intends to use the sea.

Design and outdoor living

On the water the 70 reads as pure Sunreef, wide and low with a flybridge that becomes the social heart of the yacht. The aft platform folds the deck down to the sea for swimming, diving and toys. Fore and aft cockpits give guests shaded and open spaces to move between as the sun tracks across. Owners tailor the sunpads, the bar and the dining to their own rhythm of the day. The flybridge alone can host the whole guest party for a long lunch under the sun.

The beam of 10.8 metres delivers deck acreage that a monohull of similar length cannot touch. Custom paint, decking and detailing let an owner set the character of the exterior. Draft is a modest 2.5 metres, which opens up shallow anchorages that keep the crowds at bay. The whole yacht is designed to pull life out onto the water. That shallow draft is a quiet luxury, because it puts the best bays and beaches within reach.

The definitive Sunreef sailing cat, silent at anchor on 143 square metres of solar

Interior and craft

Below decks the 70 offers the full-beam volumes that make catamarans such rewarding homes afloat. The owner's suite can run the full width of a hull or spread across the forward deckhouse for panoramic views. Sunreef's cabinetmakers work in fine veneers, natural stone, leather and custom fabrics to an owner's taste. The saloon sits in light, with glazing that keeps the horizon present. The forward owner's option in particular gives a bedroom with a view most land homes cannot rival.

Storage, tankage and systems are engineered for months away from a shipyard. The galley can be positioned to suit a professional crew or a hands-on owner. Climate control is designed to work within the Eco energy budget. The result is a yacht that feels like a considered home in every sea state. Owners who spend real weeks aboard notice how the volume makes long stays feel unhurried.

The Eco engineering

The Eco 70 carries Sunreef's proprietary solar power system with panels integrated into the hulls, superstructure, mast and boom, covering around 143 square metres. That surface feeds a battery bank that drives electric propulsion and the hotel load. Under sail the rig provides the motive power, and the sun keeps the banks topped up. At anchor the yacht runs silent, with no generator and no local emissions. That silent night at anchor is the experience owners talk about most.

The integration of the panels into the structure is the clever part, because it adds the solar surface without bolting arrays to the deck. Sunreef builds the composite platform in house for the stiffness such a rig demands. Owners who want conventional propulsion can still specify a diesel version. Either way the sailing DNA is the same seaworthy hull. The technology here is proven across the fleet, so a buyer is choosing maturity, not a first attempt.

The owner it suits

The 70 Eco suits an owner who wants one yacht to do everything, from family summers to ocean crossings. It rewards those who intend to spend real weeks aboard and value silence at anchor above all. Buyers who like the idea of a solar-electric yacht that still sails hard will find their match. It carries a crew comfortably without feeling like a floating hotel. For many owners it is the whole point of Sunreef in a single, manageable package.

It is also a proven charter asset for owners who want the yacht to earn while they are ashore. The blend of range, comfort and green credentials travels well in the top of the market. For many, the 70 is the Sunreef they picture when they picture the brand. Life aboard is generous, quiet and free of the dock. The strong charter demand also gives an owner a clear route to offset the cost of a large custom yacht.

Who it is for: Owners who want one seaworthy solar-electric sailing catamaran for everything from family summers to ocean crossings.

Model profile compiled by Yotters from Sunreef and public sources. Photography as credited.
Yotters DeskEditor-in-Chief: Leon SolimanEditorial standards

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