The Microferm biomethane (green gas) installation at a farmer in Vriezenveen, the Netherlands produces 40 Nm3 biomethane per hour, sufficient for keeping around 400 Dutch families warm.

The produced biogas from the cow manure is being upgraded to green gas with natural gas quality, also known as biomethane. The high-quality green gas is directly injected into the national low pressure network (LD-net). In addition to this sustainable way of producing energy, the methane – a strong geenhouse gas – is considerably reduced. HoSt ensures the daily functioning of the installation with an all-in-maintenance contract of twelve year.


Start construction October, 2017
Start-up March, 2018


Capacity 320.000 Nm³ biomethane per year
Input 12.000 tons of manure per year
200 tons of by-products per year
Digester Microferm, 1 x 791 m³
After-digester 1 x 791 m³
Pre-storage 2 x 50 m³


Capacity 65 Nm³/hr biogas
40 Nm³/hr biomethane
Methane concentration raw biogas 55-60%
Methane concentration product gas 89%
Efficiency 99.5%

This project was made possible by a grant from the Province of Overijssel.