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GRegioflex, biogas for agriculture

Biogas from your farm’s slurry

GRegioflex digests the thin slurry from your farm in a fixed-bed digester and turns it into power and heat. We support your project from the idea to the finished plant.

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Timber barn with open bays and two GRegioflex containers, a silo on the left
Open technical container with control cabinet, pumps and pipework

Four steps from the barn back to the barn

  1. Separate. A separator splits the fresh slurry into thin slurry and solids.
  2. Digest. The thin slurry is digested in the fixed-bed digester. The biogas collects in the gas holder on top.
  3. Power and heat. A combined heat and power (CHP) unit in the container converts the gas into power and heat, with an output of 20 to 50 kWe.
  4. Bedding. The solids return to the barn as fresh bedding and later re-enter the slurry cycle.

How bio-waste becomes gas

Explainer video on biogas: a microbe explains how it turns organic waste into energy. The film lasts just over two minutes; English subtitles are burned into the picture.

From biogas to power and heat

Explainer video on the combined heat and power unit: how biogas becomes power and heat. The film lasts almost two minutes; English subtitles are burned into the picture.
New cubicles with dry bedding in a loose-housing barn
Cubicles with dry bedding

What changes on the farm

  • No purchased bedding. The bedding consists of the undigested fibres of your own feed and is spread regularly and fully automatically.
  • Slurry without stirring. Digested, separated slurry no longer needs to be stirred, contains more available nitrogen and is suitable for trailing-hose application.
  • Less energy in the digester. The fixed-bed digester needs less energy than a stirred-tank digester.
  • Small footprint. Gas treatment and the CHP unit are housed together in the container.

What your barn should offer

The starting point is a loose-housing barn with solid floor areas and cubicles, a manure scraper and a collection pit for fresh slurry. Existing barns can be adapted.

A plant only makes sense for farms with more than 80 livestock units (LU). We determine in the farm check whether your farm is suitable.

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Seven steps to operation

  1. Initial contact. You get in touch via the farm check or a callback request.
  2. Preliminary project. We check whether and how a plant fits your farm.
  3. Project development and building permit application.
  4. Funding application.
  5. Implementation.
  6. Testing and commissioning.
  7. Operation and support.

Allow time for the approval process.

A look inside farm plants

  • Technical room with pipework and expansion vessels for the heat network
    Aeugstertal ZH: technical room for the heat network
  • View into the container of the farm biogas plant with heat storage tank and pipework
    Ermensee LU: view into the container with heat storage tank
  • Loose-housing barn with feed alley and a moving feed robot
    Samstagern ZH: the new loose-housing barn (plant under construction)

Farms with GRegioflex

  • Aeugstertal ZH

    50 kWe · in operation since July 2025

  • Illighausen TG

    20 kWe · in operation since July 2025

  • Ermensee LU

    20 kWe · in operation since September 2024

  • Suhr AG

    2 × 20 kWe · in operation since January 2026

  • Samstagern ZH

    50 kWe · under construction

All projects

Green plant container with an open door, surrounded by pastures with cows

Does GRegioflex suit your farm?

Tell us about your farm. We will get back to you and tell you whether a GRegioflex plant makes sense and what comes next. We state prices and funding rates only after the preliminary project.

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