This new 138foot hybrid yacht can run emissions-free at anchor
This new 138foot hybrid flagship from GX Superyachts, the 138-foot GX40, launched in Turkey this week and can run emissions-free at anchor for up to 48 hours. A diesel-electric hybrid system, lithium batteries, and solar arrays cut onboard electricity use by as much as 45 percent.
Key Takeaways
- GX Superyachts launched its first model, the 138-foot GX40, in Turkey this week.
- At anchor, the hybrid can operate for up to 48 hours without emissions.
- Diesel-electric propulsion, a large lithium battery bank, and solar arrays help cut onboard electricity consumption by up to 45 percent.
- Italian designer Marco Casali shaped the exterior and interiors, including a fold-out beach club and large flybridge.
- The yacht is set for a world debut at the Monaco Yacht Show beginning September 23, 2026.
For readers who follow luxury real estate and dream homes, the GX40 lands as a floating counterpart to high-end, low-impact living—green tech paired with Italian-led comfort rather than a bare eco experiment.
According to Robb Report, GX Superyachts is a green-tech shipyard and the GX40 is its flagship first model. The launch positions the brand in the growing sustainable yachting sector.
What makes this new 138foot hybrid emissions-free at anchor?
The standout claim is quiet, zero-emission time in harbor. Robb Report reports the GX40 can go up to 48 hours without a single emission at anchor.
Underway, power comes from a diesel-electric hybrid propulsion system and a large-capacity lithium battery bank. Integrated solar arrays further reduce emissions. Together, those systems help the yacht cut onboard electricity consumption by up to 45 percent.
Who designed the GX40 and what is onboard?
Both the exterior and interiors were designed by Italian creative Marco Casali. The look emphasizes smooth, clean lines, natural materials, and luxury details throughout.
Amenities include a fold-out beach club and a large flybridge. The flagship is prepared for long-range cruising, so owners can use those features on extended journeys.
Maurizio Magri, COO of GX Superyachts, said in a press statement that the project is about more than technology and centers on well-being—greater tranquility, improved comfort, and a deeper connection with the sea, framed as a more peaceful, healthier, and more balanced onboard experience for responsible luxury.
When can you see the yacht, and who is behind GX Superyachts?
GX Superyachts is relatively new. The team behind Greenline Yachts, known for eco-conscious cruisers, founded the company in 2024 and unveiled the endeavor at the Monaco Yacht Show. Interest from Prince Albert II of Monaco in Greenline’s electric 33-foot vessel reportedly spurred the move into the superyacht sector.
The new brand plans a range from 78 feet to 164 feet. Robb Report says the GX40 makes its official debut later this year, with a world debut at this year’s Monaco Yacht Show, which begins on September 23.
That timeline keeps the 138-foot hybrid in the spotlight for anyone watching how luxury travel and waterfront living are shifting toward lower-impact tech without giving up beach-club comfort.