Wood pellets are produced with the NAWARO process, but also other energy forms are cultivated and tested.

In this process raw materials, e.g. G 50 / W 50 class softwood chips, are ground and finally dried until their residual moisture is about 12%.

Drying requires heat that is generated in the heating plant, likewise from renewable raw materials. This heat is used for both drying and generating electricity.

The dried chips are placed in intermediate storage from which they are then introduced to presses which pelletise them for various applications. The pressing process heats the pellets to about 90 °C, so they must be cooled in countercurrent condensers before they are sifted: only pellets may enter the silos.
From these silos the pellets are then loaded on trucks and transported to the customer.

The following images depict the various components of a pelletising plant, so that you can see what it means to build and use an installation of this kind.

An important section of this plant generates the heat.
Depicted on the left is a pump station with the requisite pipe installations.

This plant section generates a heat input of 11.4 MW. The boiler on the left is for the flue gas, that on the right for the thermal oil.

When the hot process water leaves this section after passing through heat exchangers the pump station directs it through steel pipes to the belt drier.