2017

13–15 July 2017 · Port Hercule, Monaco
Then called the Monaco Solar & Electric Boat Challenge, the 4th edition drew 21 teams from 7 nations and introduced the biggest novelty yet: the Monaco Offshore Solar & Electric Race, a 25-nautical-mile return course between Monaco and Nice for a new class of three-seat solar boats built to YCM Offshore Class specification — the direct ancestor of today’s Open Sea Xperience. Gerhard van der Schaar’s Dutch Clafis Victron Energy Solar Boat Team swept every contest in the Open Class and set a new speed record — his fourth win in as many editions. Source: official YCM press release, 15 July 2017.

21

Competing teams

2

Classes

7

Nationalities

25.9kn

Speed record

NEWS

What marked this edition

Birth of the Offshore Class

A new 25-nautical-mile race between Monaco and Nice let shipyards and young engineers compete side by side for the first time — the format that grew into today’s Open Sea Xperience.

Speed record: 47.906 km/h

Clafis Victron Energy Solar Boat Team clocked 47.906 km/h (≈25.9 knots) over one eighth of a mile, the fastest yet recorded.

Van der Schaar wins his 4th straight edition

Gerhard van der Schaar’s Clafis Victron Energy Solar Boat Team swept the Open Class — endurance, speed, slalom and duels — and also set a new YCM speed record.

Heliodive sets the Offshore reference time

Fitted with 50 solar panels and room for three people, Heliodive completed the inaugural Offshore course in 3 hours 10 minutes. 

Results & winners

🏆 Overall winner · 4th edition highlight

Gerhard van der Schaar — Clafis Victron Energy Solar Boat Team — swept the Open Class and the speed record, his 4th consecutive year on top

Monaco Energy Boat Challenge 2025
Offshore Class (new)

Heliodive

50 solar panels · 3h10m reference time
 
Monaco Energy Boat Challenge 2025
Solar A-Class

NHL Solarboatteam

959 pts · driver Johannes van der Steen
 
Monaco Energy Boat Challenge 2025
Solar Open Class

CLAFIS Victron Energy Solar Boat Team

1200 pts · driver Gerhard van der Schaar
 
porsche
Energy Class

Not yet launched

introduced the following year, in 2018

Other prizes

Solar A-Class 2nd–3rd — WhisperPower Solar Team, Jeroen Antonisse (869 pts), Antwerp Maritime Academy, Jos Noteboom (825)

Solar Open 2nd–3rd — Sunderbird – Emden, Matthias Graf (769 pts), Solar Boat Twente, Jasper Admiraal (694)

Speed Record — Clafis Victron Energy Solar Boat Team, 47.906 km/h ≈ 25.9 kn, over 1/8 mile (231.5m)

Gallery

Relive the edition

Technology spotlight

2017’s defining move was reaching beyond the university fleet: the new Offshore Class, built to YCM specification in collaboration with the UIM, invited shipyards and professional builders to race three-seat solar-electric boats over open water — the same logic that today lets production shipyards compete in the Open Sea Xperience alongside student teams. On the Solar side, Gerhard van der Schaar’s run of four consecutive Open Class titles, capped with a new speed record, remained unmatched.

Explore another edition

From 2014 to today, browse every chapter of the Monaco Energy Boat Challenge.