van Keulen Ontwerp

07/09/2026

Lijkt n stuk slimmer dan zonnepanelen op de grond plaatsen, nog wat wateropvang er bij en…

A farm field does not always have to choose between producing food and producing electricity. In the Netherlands, some growers are experimenting with movable solar panels installed above crops, creating a system where the same piece of land can serve two purposes. The panels generate renewable power while their position can be adjusted so plants below still receive the amount of sunlight they need.

This approach, often called agrivoltaics, allows farmers to manage shade much more carefully than with fixed solar structures. During intense heat, panels can provide partial cover that may reduce stress on certain crops and slow water loss from the soil. At other times, they can be repositioned to let more sunlight reach the plants. Sensors, weather data, and automated tracking systems can help decide how the panels should move throughout the day, balancing electricity production with crop growth.

The most interesting part is how the technology treats sunlight as a resource that can be shared rather than used only once. Instead of covering farmland with solar panels and removing it from food production, farmers can continue growing underneath. The panels may also offer protection from heavy rain, hail, or extreme heat depending on the design. It is a clever example of how agriculture and clean energy can work together on the same land instead of competing for space.

03/09/2026

Omdenken tot iets moois

A Swedish car park just gave 57 old wind-turbine blades a completely new life.

In Lund, Sweden, the Niels Bohr car park reused rotor blades from Vattenfall’s decommissioned Nørre Økse Sø wind farm in Denmark.

Instead of sending the huge blades toward disposal, sections of them were cut and turned into non-load-bearing walls covering large parts of the car park’s façade.

The blades are made from strong composite materials designed to withstand decades of wind, making them difficult to recycle using conventional methods.

So instead of treating them as waste, this project treated them as building material.

Vattenfall describes the project as the first car park of its kind in Europe.

It’s a simple example of what the future of recycling could look like:

Don’t just ask how to dispose of old materials.

Ask what else they can become.

04/08/2026

Keuzes🤔…

Every person who wants to build a house needs to decide whether to:

Build a house that consumes. Or a house that produces.

A house that consumes means you rent your water and power for the rest of your life.

A house that produces means you own them.

Most people build the first kind without noticing. They pick the tiles. They pick the kitchen. And they sign the house up for bills that never stop.

We have spent the past 15 years building the second kind.

These homes:

- Produce their own water.
- Heat and cool themselves naturally.
- Treat their wastewater and reuse it 4 times.
- Grow food in their own greenhouse.

None of this is new. Houses that produce used to be normal. Then we invented houses that consume.

You get to pick which one you build - but pick wisely, because one will cost you for the rest of your life.

If you want to learn how we design and build buildings that produce like this one?

Comment "Academy" and I'll send you how it works.

Photo by: Marco Mathis (IG )

Biotonomy - Nature Based Architecture

29/06/2026

Eenvoud…

25/06/2026

1+1=…..

Cities don't have a flood problem.
They have a heat problem.

Here's what most people don't know:

About 60% of all the rivers on Earth are now floating in the air above us.

Why? Because the Earth has heated up.
It's about 1.5°C hotter than it was 150 years ago.

That sounds tiny — but it's not.

Warm air holds more water — like a sponge.
1.5°C hotter means about 10% more water in the sky.
And that 10% is about the same as 60% of every river on Earth.

All of it has to fall.

And our cities make it even worse.

Here's what happens, step by step:

1️⃣ Concrete and glass soak up the sun all day.
2️⃣ Air conditioners blow more heat into the streets.
3️⃣ The hot air over the city holds even more water.
4️⃣ It rains — and it pours hard.
5️⃣ The paved streets can't soak it up.
6️⃣ The water has nowhere to go. So the city floods.

So hot cities get flooded.

At Biotonomy, we design cities the other way around.
We cool them with nature:
Green roofs.
Green walls.
Trees on the streets.
Soil that drinks the rain.

A green city stays cooler in the heat — and soaks up the rain like a sponge.

Cities don't have to flood. We just keep designing them to.

Want to learn how it works? Comment "Academy" below and we'll send you the link to join the Biotonomy Academy waiting list.

Share this with someone who still thinks floods are just bad weather.

Biotonomy – Nature Based Architecture