We have our own Energy Challenges FOREST! Hey, it's really true. It has been in existence since spring 2022 and can even be visited in Hardenberg in Overijsel.

“The Energy Challenges FOREST”. We are very proud of it!

Now it is only very small, there are only 30 trees left, but the intention is that together we ensure that it will become a beautiful large forest. How can you help? By clicking on the link, choosing a tree, paying and the Treemendo Foundation will allow our forest to grow little by little in the next planting season.

We will of course keep you informed afterwards about how our forest is doing. On the special website, you can also take a digital look at the EC BOS on the interactive map.

As Energy Challenges, we are working every day to make young people more aware of their energy consumption ,and we teach them to use energy as sustainably as possible. Save as much CO2 as possible by using less gas, electricity and water.

CO2 that is released anyway, which we cannot do without energy, can also be stored in trees. In this way, we try to contribute to a better living environment.

With our 30 trees that have already been planted, we have already captured 3 tons of CO2, with which we compensate for 3 plane flights, 10 m2 of sea ice and 1333 km by car and create beautiful new nature. That's a good start, isn't it?

Will you help us plant a beautiful new forest?

Companies or organizations that want to compensate for their CO2 emissions are also very welcome. If you send us an email, we will calculate how many trees are needed as compensation ,and we will send an invoice for the purchase of those trees.

Questions call: 085-0230342 or mail to




We all know them, hazelnuts! The Hazel is the tree that grows the nuts that we as humans, but also squirrels and mice, like so much. Not so fond of nuts? It seems that a hazelnut protects against evil spirits.. No guarantee though!

Is found in
The Hazel is a native tree in Europe. Western Asia, from the British Isles to Iberia, Greece, Turkey and Cyprus to northern central Scandinavia. It is also found in central Urals, the Caucasus and northwestern Iran.

Height & Age
Normally a Hazel is 3-8 meters high, but that can go up to about 15 meters! They reach ages of over 100 years.

Fruits & Flowers
Hazel leaves serve as food for many different animals including moths. And even in the dead twigs of a hazel, caterpillars, larvae and other insects are found. But the fruits are more important food for animals like the squirrel. In Ireland the hazel was also known as the 'tree of knowledge' and in the Middle Ages the hazel was a symbol of fertility.