One of the prototype boats created by a university team.

© YCM/Studio Borlenghi

An annual event in the Principality of Monaco has been described as a “laboratory” for “accelerating the energy transition” by the organizers. Designed for student teams from across the world to trial, develop and progress their alternative-energy boats, the Monaco Energy Boat Challenge has so far attracted 43 teams from 21 nations.

Now in its 13th edition, the event will run from 8 to 11 July 2026, and will turn the famous Monte Carlo marina into a live testing ground for zero-emission propulsion and autonomous navigation. Organized by the Yacht Club de Monaco with support from the Prince Albert II of Monaco Foundation and industry partners including UBS, BMW and SBM Offshore, the event has evolved into a testbed for students, researchers and marine engineers.

The focus is on University teams, who have often spent years developing prototype boats installed with different types of sustainable propulsion. These prototype boats race off the coast of the French Riviera, where breakdowns and technical challenges are not uncommon on the different racing circuits. But past years’ participants have shown remarkable support and sportsmanship, often coming to the aid of those in competing teams. The common goal is clear: practical decarbonisation over stiff competition.

Bernard d’Alessandri, the General Secretary and Director of the Yacht Club, said "the diversity of profiles and cultures" was a key ingredient of the event’s success, as well as the “open-source” format that ensures all proposed solutions are accessible to everyone.

“This event is a platform for exchange and knowledge sharing. By bringing together hundreds of young engineers, we are reaffirming yet again our commitment to making Monaco a testing ground where students, manufacturers and institutions can work together on sustainable solutions for the boats of tomorrow," said d’Alessandri.

A Youth-Led Initiative

More than 1,000 students and young engineers are involved in the challenge in the year building up to the event. Many teams spend several seasons refining their prototype boats, moving beyond proof-of-concept toward systems that are increasingly mature and closer to commercial application.

The 2026 fleet reflects the current state of play in alternative propulsion. Of the boats registered, 33 run fully battery electric systems, nine incorporate hydrogen technologies and one is powered by methanol. The mix provides a rare side-by-side comparison of competing energy strategies in identical race formats.

Teams compete across four categories, each targeting a different aspect of sustainable boating.

AI-Driven Autonomous Boats to Compete in Monaco

The AI Class, introduced in 2025, is the fastest-growing segment with 11 teams registered. Here, the focus shifts from propulsion alone to autonomy and on-board intelligence. Boats must operate with high levels of self direction, combining sensors, control systems and advanced algorithms capable of making decisions on the water.

The team from Poland, the AGH Solar Boat, is developing “neural networks” that allow its vessel to map surroundings, detect obstacles and plan routes in real time. Meanwhile, Belgium’s UGent Sailing team is working on an AI-driven autonomous system designed to assist piloting and manoeuvring in fast-changing marine environments.

The Energy Class remains the backbone of the event, drawing 26 teams. The SeaLab Class, with six entries, offers a category for less conventional approaches, including the methanol-powered prototype.

Beyond student prototypes, the Open Sea Class is open to CE certified zero-emission boats from within the yachting industry, offering manufacturers a platform to present market-ready solutions.

While racing remains central, the event also incorporates technical presentations, open-source data sharing and a job forum that connects participants with maritime companies. Being held in Monaco offers practical advantages as well, with yacht builders and designers who are based in the Principality often attending to offer support, guidance and sponsorship. The unconventional regatta has become a controlled environment where emerging technologies are tested publicly, and where the next generation of naval engineers gain direct exposure to the practical demands of decarbonising boats.