Planning Permission Key to Biomethane Feedstocks
Struggling with planning permission delays for green energy projects? Teagasc’s new study reveals agricultural feedstocks poised to power Ireland’s biomethane sector.
Teagasc released a comprehensive study examining agricultural feedstocks suitable for Ireland’s growing biomethane industry. The research identifies grass-based systems and other farm resources as prime candidates for anaerobic digestion processes. These feedstocks promise substantial reductions in farm-level greenhouse gas emissions, potentially cutting outputs by 50% to 98% per hectare on involved farms. This development supports national climate goals while bolstering renewable energy production from agriculture.
The study highlights grass as a central feedstock for biomethane production through anaerobic digestion plants. Farmers can leverage existing grassland resources, minimising land-use changes. Key benefits include enhanced nutrient recycling and lower reliance on imported energy sources. Such systems align with sustainable farming practices already demonstrated in Teagasc initiatives, where over 90% of participating cattle farms adopted low-emission slurry spreading methods.
Planning permission emerges as a critical factor for scaling these operations, much like recent An Bord Pleanála decisions on flood-risk development and housing scheme approvals. Biomethane facilities require careful site assessments to address environmental concerns, including potential material contraventions of zoning rules. The study stresses streamlined approvals to unlock feedstock potential without compromising ecosystems.
Teagasc’s analysis builds on broader climate efforts, including the Signpost Programme across 120 demonstration farms. Soil testing on over 5,000 samples showed 70% of dairy farm soils reaching optimal fertility levels by 2024. These improvements, alongside cover cropping and reduced fertiliser use in tillage, enhance feedstock quality for biomethane. Grasslands on clay-rich soils demonstrated strong carbon sequestration capacity.
Anaerobic digestion integration could accelerate Ireland’s progress toward a 25% agricultural emissions cut by 2030 from 2018 levels. The research projects full implementation of marginal abatement measures to meet targets, emphasising technology adoption rates among farmers. Incentives and policy support remain essential for widespread uptake, mirroring challenges in environmental impact evaluations for energy infrastructure.
Collaborative efforts with 62 industry partners and dedicated advisors have driven on-farm events and knowledge exchange. Over 260 events fostered practical adoption of climate-smart practices. Teagasc Director Professor Frank O’Mara noted farmers’ proactive stance, combining research with demonstrations for tangible environmental gains.
- Grass-based systems reduce GHG emissions by up to 98% per hectare.
- 90%+ cattle farms use low-emission slurry spreading.
- Soil fertility optimised on 70% of dairy farms.
- Agricultural emissions down 4.6% since 2018.
- Potential for carbon sinks in clay-rich grasslands.
The study urges further research into climate-neutral food production alongside biomethane expansion. Policymakers must prioritise regulatory frameworks, including planning processes, to facilitate farm-level transitions. This positions Irish agriculture as a biomethane leader in Europe.
Originally reported in Bioenergy Insight on Fri, 12 Dec 2025 09:07:33 +0000. Full story

