The installation in Son built by HoSt uses various input streams (flotation sludge, liquid waste from the food industry and offal) to produce renewable electricity and heat.

The installation consists of a main digester and an after-digester with integrated gas storage and is characterized by its high stability by optimal mixing of the input streams. Moreover, there is a short residence time.

The total capacity of the plant is 65,000 tons per year and the plant produces a total of 2.5 MWe of electricity and heat.


Start Construction 2006
Startup 2007


Capacity 65,000 m³/year
Input Flotation sludge, liquid waste from the food industry and slaugterhouse waste
Digester(s) 1 x 2,600 m³
After-digester(s) 1 x 3,000 m³
CHP(s) 2 x 1.25 MWe
Pre-strorage/receipt Pre-strorage 3 x 220 m³


  • Digester with a central agitator in combination with after-digester with integrated gas storage
  • Short residence time (< 15 days) for optimal digestion of input with low dry matter content
  • High stability by optimal mixing

More information

Do you want to receive more information about our biogas plants, want to learn more about our anaerobic digestion technology or do you want to know what HoSt can do for you? Don’t hesitate to contact us through or call us on +31 (0)53 – 460 90 80.