Solar panels

Unlike panels that are normally used of roof of buildings the panels that I use are lighter and can flex a bit. The individual cells , encapsulated in very stiff plastic (ETFE) are made of Silicium, which is a material like glass thsat can break.

When this flex panel has no rigid underground it will break easily by for instance by hail stones. The result is very much reduced output. Johan experienced this. To inspect a panel for micro-cracks put a bright light behind it in a dark room and view the panel from the front. When you see micro cracks it is not good news for the panel. You may stil…

Read More

Climate change

We are facing an unprecedented global emergency. Life on Earth is in crisis: scientists agree we have entered a period of abrupt climate breakdown, and we are in the midst of a mass extinction of our own making.

The above text is copied from Extinction Rebellion website, an international organisation calling for a rebellion agains climate breakdown. I thought the may be dramatising a bit just to get our attention. Then I was cycling past the river Loire in France. I expected a big river and this is what I saw:


I asked some locals "is this normal" and they answered that they never saw the river that low in there entire life. I fear…

Read More

The Netherlands

The Nederlands where I live is a great place to test "cycling techology". In june 2018 I tested my vehicle for the first time cycling to Friesland in the north of the Netherlands


foto : Areal Promos
foto : Franiker
Friesland is also famous for its 'Elfstedentocht' (Eleven City Tour) which is a large ice skating event that can only be held when the natural ice is thick enough to carry thousands of people. Unfortunately for all that love this event, it becoming less likely that it will repeated very often due to climate change. Instead the Frisians now organised a tour…
Read More

Johans Solar Trike

Johan is a friend who build his own solar powered tricycle. This is his personal contribution to my blog:

40 years ago Sir Clive Sinclair, an English inventor, was far ahead of his time with his 'C5'. He designed and manufactured a single person vehicle that was driven by an electric motor combined with muscle power. The basic technology that was available to him was not as good as it is today. He had to use lead batteries instead of Lithium batteries. A 1kWh in a lead battery would weigh about 25kg, while today the same energy can be stored in…

Read More

The vehicle

* AZUB Six recumbent bicycle. Reason: A recumbent bicycle is very comfortable and lets you enjoy the scenery instead of the tarmac

* Schlumpf speed drive front gearing enabling intant gear shifting by a ratio of 1:2.5.
Reason : being able to shift gear instantly enables me to maintain speed instead of swaying over the road in that wrong gear. So increased safety.

* Gearless hub motor in the rear wheel. 500 W, Brand: MXUS XF39 XF40. The motor has a large diameter for higher torque performance

* Lithium battery pack : 36V / 35 Ah, which equals about 1.2 kWh of energy

* 3…

Read More