For the realization of project ‘Van Eijck Groengas’ of the Van Eijck brothers in Alphen-Chaam, 1.1 million euros have been raised through crowdfunding, also known as funding by the people. Project ‘Van Eijck Groengas’ was the very first biogas project ever on the crowdfunding platform Oneplanetcrowd. Already within a week, more than the target number of €900,000 was crowdfunded. The biogas facility anaerobic digests 43,650 tonnes of manure and a maximum of 5% agricultural co-products per year, and produces annually 2.4 million Nmbiomethane, which is fed into the regional gas grid.

The digestate is separated: the thin faction will be supplied to arable farmers. To cover the heat consumption, maximum heat recovery is applied by the use of a heat pump; this results in a high efficiency. All the products are stored in enclosed spaces and the exiting air is first treated with an advanced air treatment technique to ensure minimal odor.

In addition to the turn-key supply and construction of the plant, HoSt will also provide maintenance for the biogas upgrading system based on a 24/7 service contract.

Project ‘Van Eijck Groengas’ receives the government’s subsidy Stimulation Sustainable Energy Production (SDE+).


Start construction August 2018
Startup May 2019


Input 43,650 tonnes of manure + max. 5% agricultural co-products a year
Digester 2 x digesters of 24 m x 8 m
After-digester 1 x after-digester of 28 m x 8 m
Solid feeding input 1 x 80 m3 solid feeder
Pre-storage / receipt 3 x storage tanks of each 140 m3
1 x storage tank of 1,000 m3
After-storage 1 x 5,160 m3
Digestate treatment Separator + centrifuge


Capacity 450 Nm3 / hour biogas
2.4 million Nm3 / year biomethane
Methane concentration biogas 55-60%
Methane concentration product gas 89%
Efficiency 99.5%


  • Maximum heat recovery technology
  • Advanced air treatment technique to ensure minimal odor
  • Project partly funded by crowdfunding (first biogas project every on the crowdfunding platform Oneplanetcrowd)
  • The project receives SDE+ subsidy

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 [email protected] or call us on +31 (0)53 – 460 90 80 and ask for Sjaak Klein Gunnewiek.