Top of the ? at DoubleTree Little Italy

Top of the ? at DoubleTree Little Italy Contact information, map and directions, contact form, opening hours, services, ratings, photos, videos and announcements from Top of the ? at DoubleTree Little Italy, Hotel, 1646 Front Street, San Diego, CA.

08/20/2026
08/12/2026

He built a yacht that needs no fuel, then sailed it thousands of miles to prove it actually works.

In Finland, engineer Lukas Sjöman spent around 200 days building Helios 11, a DIY solar-powered yacht that cost roughly $20,000 to $30,000. Made from marine plywood and fiberglass, the boat is powered by rooftop solar panels, batteries, and a 6 kW electric motor.

On sunny days, the yacht can cruise at around 7 knots and reportedly travel as far as 270 kilometers in a single day. Even in less favorable conditions, it can still cover roughly 70 kilometers.

Then came the real test.

Sjöman sailed Helios 11 more than 3,000 nautical miles, or about 5,700 kilometers, from Finland all the way to Ibiza, Spain, without burning a single drop of fuel.

No gasoline. No diesel. Just sunlight charging the batteries while the yacht keeps moving.

He did not just build a solar-powered boat. He took it across Europe and proved how far clean energy can actually take you.

10/05/2025
03/01/2025

Address

1646 Front Street
San Diego, CA
92101

Telephone

+16192396800

Website

Alerts

Be the first to know and let us send you an email when Top of the ? at DoubleTree Little Italy posts news and promotions. Your email address will not be used for any other purpose, and you can unsubscribe at any time.

Shortcuts

Featured

Share

Category