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Solar Powered Velomobile by Alve Henricson

By July 22, 2020No Comments

Have you heard about Velomobile?

A Velomobile, velomobiel, Velo, or bicycle car is a human-powered vehicle (HPV) enclosed for aerodynamic advantage and/or protection from weather and collisions. They are similar to recumbent bicycles, pedal go-karts, and tricycles. But with a full fairing (aerodynamic or weather protective shell).

The Velomobile is one of the passions of the Swedish rider Alve Henricson. And it has intrigued him to build a Solar Powered Velomobile. The Suntrailer, as it has been called by him, is an addition to his Velomobile Quattrovelo. Equipped with one SUNBEAMsystem Tough++ 124.5W Solar Panel, the Suntrailer powers the 250W auxiliary motor. The auxiliary engine, which is mostly used on uphill slopes, switches off at 25 km/h and for the most part, his average speed is around 28 km/h. According to him, the challenge is to find the right balance between weight, air resistance, and electricity needs.

The challenge is to find the right balance between weight, air resistance, and electricity needs.

Alve Henricson
Alve is already testing his Suntrailer prototype. And recently he wrote the following testimonial on his Facebook:

“Today I finished a 3-day off-grid test of my new Suntrailer and am extremely pleased. The single panel has also been charging lights and my smartphone. The solar panel is 124W from SUNBEAM / and the charger is a Genasun GV-Boost controller.

The Suntrailer prototype weighs 6.5 kg. Hopefully, I’ll make a lighter one in the future. I estimate that the trailer is slowing down the Velomobile by 2 to 3 km/h at high speeds and less at low speeds, hard to tell the difference.

Preliminary conclusion if riding 150 km per day and climbing 1300 meters each day:
If sunny all day, the battery has 90% of capacity left at the end of the ride and is fully charged before sunset.
If mainly cloudy during the day, the battery has 65% of capacity left at the end of the ride and 85% at sunset, the remaining 15% is charged in the morning before leaving. If not, and if it is partly cloudy several days in a row, I might have to take a day off every 3 days for charging myself and battery. I can live with that. “

The 202020 Velomobile Challenge

Alve Henricson is cycling and testing his Suntrailer this year as one of the participants of the 202020 Velomobile Challenge. The challenge consists of cycling with a Velomobile through as many countries, states, or territories as possible during 2020. Preferably through 20 of them, that is why the name 202020. It is a personal challenge, not a competition. 

You can find more information, links and see the latest Velomobile positions on the site:
Also, you can visit Alve’s blog to see all his adventures: