Introducing the 153m / 502ft Hybrid Mega-Yacht by Gary Grant — A New Benchmark in Ultra-Luxury and Innovation
FOR IMMEDIATE RELEASE
USA — December 29, 2025 — Gary Grant Design unveils the concept for the 153-meter / 502ft Hybrid Mega-Yacht, a visionary leap in ultra-luxury yachting that redefines design, speed and sustainability, at giga-yacht scale.
Gary Grant’s signature use of formed and sculpted glass transforms the superstructure into a panoramic sanctuary. Floor-to-ceiling glass walls with deck to overhead distance exceeding 17ft or 5.2m in the main saloon. Open-plan layouts and convertible beach clubs create immersive indoor-outdoor living spaces. Spatial planning emphasizes wellness, entertainment, and privacy.
At 153 meters (502 ft) long, the yacht is one of the largest private vessels ever conceived and can reach speeds up to 50 knots. This unprecedented blend of size and velocity is enabled by an advanced hybrid propulsion system, combining Wärtsilä 31 engines, hybrid electric system including a large energy storage system, as well as electric drives powering two waterjets. Additionally, twin Rolls-Royce MT30s will power two further Wärtsilä waterjets, ensuring maximum performance.
The yacht’s zero-emission capability allows silent, battery-electric cruising in sensitive marine reserves and eco-regulated ports. Smart energy management systems orchestrate power flows to ensure a minimal ecological footprint.
With a portfolio including Margaux, Adler II, Crazy Me, and Thermal Runaway, Gary Grant brings decades of expertise in marine design and sculptural aesthetics. The 153m Hybrid Mega-Yacht represents a uniquely advanced technology platform and a new era of sustainable luxury at giga-yacht scale.
Media Contact: gary@garygrantdesign.com
This provocatively different vessel is the quintessence of a custom built yacht. Go to the glass section of this site under + content to see more great images.
One of the world's 10 fastest yachts : Boat International..
"Superyacht Of The Year Finalist" Nominated by Boat International.
email: gary@garygrantdesign.com
phone: +1. 425. 890. 1778
This provocatively different vessel is the quintessence of a custom built yacht. Go to the glass section of this site under + content to see more great images.
"Most Innovative Motoryacht of the Year" Showboats International.
Hull section lines
Active aerodynamic stabilization.