About
Nostos is an exceptionally well-equipped Nautitech Open 40 Owner’s Version that delivers the perfect balance of performance sailing and modern liveaboard comfort.
What truly sets Nostos apart is her extensive and professionally executed electrical and systems refit in 2024, transforming her into a highly efficient, lithium-powered, energy-independent cruising platform. The result is a catamaran capable of true off-grid operation with exceptional redundancy, intelligent power management, and modern onboard comfort.
Advanced Hybrid Power Generation
INTEGREL SOLUTIONS DUAL E-POWER SYSTEM
This system harvests unused engine capacity to generate substantial onboard energy while maintaining full propulsion performance.
Other key features include: B&G Navigation, NAVIOP Marine Monitoring & Control System, AIS, Autopilot, Dometic Hot Water Heating System, Lithium Batteries, 2,758 Watts of Solar, Clothes Washer, and Dinghy.
Call listing broker to schedule a showing.
Specifications
SPECS
MEASUREMENTS
ENGINE(S)
TANKS
Accommodations
Electrical
High-Capacity Lithium Energy Storage – 34kWh
48V House Bank (22kWh)
12V Auxiliary Bank (12kWh)
Total Capacity: 34kWh
Equivalent to approximately 5,000Ah of traditional 12V lead-acid batteries — without the weight, inefficiency, or maintenance.
Solar Array – 2,758 Watts
Designed for serious autonomy at anchor.
Lightleaf Solar Carbon Solar Array
Total Solar Output: 2,758W
Inverters, Charging & System Control
Complete system monitoring and control via an integrated Victron ecosystem.
AC & DC Infrastructure Upgrade
Navigation and Electronics
Starboard Helm
Port Helm
Navigation Station in Salon
Cockpit, Transoms, Helm Stations, and Decks
Accommodations
Port Hull – Owner’s Cabin
Starboard Aft Cabin
Starboard Forward Cabin
Starboard Midships
Galley & Salon
GALLEY
SALON
Engines and Mechanical
Sails
Rigging and Deck Hardware
Water & Plumbing
Fresh Water & Pressure System
Hot Water System
Heads & Bilge Systems
Lighting , Comfort, and Additional Upgrades
Anchors and Ground Tackle
Dinghy
Additional
About INTEGREL E-POWER
Integrel E-Power is a high-efficiency, high-output, large-frame alternator. It is fitted to the front of an existing inboard diesel engine and collects the spare power generated to deliver up to 9kW (or 18kW in a dual system) of energy. Spare energy is stored in a 48V battery bank for later use. Controlled by an advanced power management system, Integrel E-Power leverages the substantial power differential between an engine’s optimal efficiency load and the boat propeller’s load. The system meticulously regulates the variable load (over 100 times per second) and complements the propeller load to ensure the engine consistently runs at or near peak performance and efficiency. Consequently, the engine operates with peak efficiency at all times, delivering high energy output, while optimising fuel efficiency to its fullest potential. Rest assured that Integrel E-Power allows your boat to run at full speed at any time. The system automatically monitors throttle input and will instantly power down if full engine power is needed. Once stable RPM is restored, Integrel E-Power resumes full power generation. The system’s added weight does not affect boat speed, as it remains tied to propeller speed with a modern, well-governed engine.
integrelsolutions.com
Disclaimer
The Company offers the details of this vessel in good faith but cannot guarantee or warrant the accuracy of thisinformation nor warrant the condition of the vessel. A buyer should instruct his agents, or his surveyors, to investigatesuch details as the buyer desires validated. This vessel is offered subject to prior sale, price change, or withdrawalwithout notice.
The Multihull Company is pleased to assist you in the purchase of this vessel though the vessel may be listed with another brokerage company.
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The Multihull Company made the process of buying our boat easy and predictable. Both our agent (Francisco Montaner) and Andrew Holland communicated well and educated/informed us of each step in the process. I highly recommend The Multihull Company for those shopping for a catamaran!
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He helped us find our Lagoon 40 after genuinely listening to what we needed, not just what he had to sell. He let us visit the boat multiple times, answered every question honestly, and helped us make a confident decision on a major purchase.
What impressed us most was the post-sale support. Once the paperwork was signed, Chuck was still picking up the phone, offering referrals, and helping us work through the early stages of liveaboard life. That kind of follow-through is rare.
If you are looking for a multihull and want someone who knows the boats and actually cares about the outcome, Chuck is the person to call.
We just purchased a 2025 Nautitech 44 Open with The Multihull Company. The process of getting here has been great, and we could not have asked for a better agent. We worked with Conor, whom we met at the 2025 Cannes Boat Show. We started our search for a cruising catamaran in Florida at the beginning of the year. We spent a couple of months looking at different boats/models within our price range and quickly narrowed it down to what really mattered to us, in part thanks to the wealth of knowledge and expertise our broker provided. When we found a perfect match in Montenegro, Conor and The Multihull Company did not hesitate to continue supporting us and to lead the efforts from start to finish with great care and transparency. Communication and support have been outstanding throughout this entire process. Conor, in particular, showed great compassion and care, going above and beyond to ensure that no stone was left unturned and that we would be able to safely and happily sail off into our big adventure.
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