Farm Gas Power - Farm Digesters

Reliable energy generation for all farm sizes

Farm Gas Power designs and builds digesters from 50kWe to 499kWe. Complete with automated de-gritting, low energy gas mixing and numerous other features, these digesters offer reduced capital and operating costs, based on more than 30 years UK digester design and installation experience.

Automatic Grit Removal Technology

Our technology removes grit automatically without having to stop the process and open the digester. Within a matter of months or several years, grit becomes a problem in all digesters and is made up from the inert part of the organic material, as well as feedstock contaminants, such as sand, ash, concrete, soil and stones.

Fibreglass Thermal Roof

Our structural roofs are made of robust fibreglass (GRP) 'sandwiched' around insulation. They have a longer life than many flexible roofs, are not affected by snow and ice and do not have the parasitic load associated with keeping the structure inflated. Additionally, they retain heat which reduces heat losses, a critical parameter as the digester becomes smaller. Finally, tanks do not need expensive coatings, as the digester level and gas space is within the fibreglass.

Low Parasitic Load

Gas mixing is both effective and requires little energy; combined with the gentle de-gritting technology, the system can use as little as 1W/m³ to mix the substrate. Our feed systems use robust, cost-effective, low-energy technology that is familiar to farmers, minimising or eliminating the use of expensive pumps and macerators where possible and designing complexity and operating expense out of the system.

Optimized

Both mixing and de-gritting parameters can be modified to optimise the AD process, so that the widest variety of feedstocks can be fed directly into the digester. These include traditionally 'difficult' substrates such as unwashed fodder beet or unwashed vegetables or slurry from cows bedded on sand or wood chip.

Energy Efficient Gas Agitation

Some of the gas produced by the process is recirculated through the substrate, creating a powerful mixing effect which uses very little energy. Our gas mixing technology has been proven to be robust and reliable, operating successfully on UK farm digesters for 25 years and more.