Independent, practical advice on planning, feasibility and compliance

Anaerobic digestion (AD), a natural process whereby tiny organisms break down plant and animal waste without using oxygen, is a major investment.

Farms typically spend between £1.5 and £3 million for a farm-scale system. The electricity generation return could be between £300k/yr (250kw) and £750k/yr (500kw). Optimising the performance of these AD plants is key to a profitable business.

The ADAS Farm Infrastructure team can advise on all stages of the process: from feasibility, planning and permitting to compliance. Our engineering team has over 40 years’ AD experience. We have audited more than 1000 farms with silos and lagoons for pollution pathways.

Achieving compliance

Whether you have a permitted or exempted anaerobic digestion process, you will also need to meet the conditions of the permit and planning.

ADAS can help you with any anaerobic digestion-related compliance issues you may have, including

  • addressing complaints about odour in the countryside
  • meeting the obligations of the silage slurry and agricultural fuel oils regulations and nitrate vulnerable zone rules for digestate recycling
  • ensuring your system meets the construction guidance on silos and tanks and lagoons produced by the Construction Industry Research and Information Association (CIRIA)
  • ensuring you have enough storage capacity over the closed spreading period.
Modern forage harvester combiner harvesting silage

Turn your challenges into opportunities

Clear and expert advice to support you with agricultural opportunities.

Speak to the team

Other farming services

Agricultural land classification surveys

Agricultural land classification surveys

Farm carbon audits and advice

Farm carbon audits and advice

Farm infrastructure design and planning

Farm infrastructure design and planning

Farmer advice available with Farming Connect

Farmer advice available with Farming Connect

Grassland, forage and silage advice

Grassland, forage and silage advice

Water management

Water management

The Land Use Management, Evaluation and Optimisation tool

The Land Use Management, Evaluation and Optimisation tool

Fertiliser advice and nutrient management plans

Fertiliser advice and nutrient management plans

Training with ADAS agricultural experts

Training with ADAS agricultural experts

Agri-environment schemes and farming grant advice

Agri-environment schemes and farming grant advice

Join the ADAS farming association

Join the ADAS farming association