Test Field
The WOT has a test field on the campus of the University of Twente. Here you can find a large number of technologies in solar, wind and water demonstrated. Windmills, a solar hot water system, the water ram pump and many more, come and have a look! Please contact us to make an appointment, or visit us on one of our Open Days.
Solar showers
This side-building houses two showers and a 1200L water tank.
During the T-week course takers and volunteer...
Farm Pump
The farm pump was given its name because in the past it was used a lot on farms. The main difference between this ...
Wooden Handpump
The wooden hand-pump is partly made out of wood. Wood is a cheap and simple construction material. A disadvantage ...
EMAS cistern
This underground cistern stores about 3500L of water, it does so entirely underground.
This is a variation on a...
Kreta
The WOT tries to find designs that can be made in a simple workshop. This means that only standardised materials a...
Deuss System
From 1981 the BACIBO Foundation has been actively involved in installing hot
water systems powered by solar ene...
Ferrocement tank
Ferrocement tanks are water tanks made out of iron and cement, usually some sort of rebar reinforced concrete cyli...
Virya
The Virya is an electricity generating windmill, which can be used to supply
power to lights and refrigerators ...
Kijito
The WOT's most old-west style windmill is located at the back of the terrain, the Kijito!
The Intermediate ...
EMAS pump
The EMAS pump is a simple piston pump made of PVC with a marble as kickback valve. This pump is extremely cheap ($...
Breurram (Hydro ram)
A water ram is a gravity fed pump that uses the waterhammer effect to pump up a little bit of water using a bigger...
Hydroponic System
The Hydroponics System is one of the newer additions to the WOT-terrain. The project focuses on sustainability and...
PTB
The PTB, “Pompen TestBank”, or “Pumping TestBench”
Is a 12-meter-high tower the WOT uses for pump validation, t...
Parabolic Cooker
The parabolic cooker is a so-called reflector cooker. Reflector cookers
concentrate the sunlight directly on th...