Green Gas
Iberian Ventures
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Agro-Methane

Agro-Methane: an opportunity for the AGRO sector and a much-needed solution

We close the organic-matter cycle: from agricultural and livestock by-products we obtain biomethane, bio-CO₂ and fertilisers that return to the field, bringing organic matter back to our soils.

What Agro-Methane is and how it works

Agro-Methane as a necessary solution

Methane of AGRO origin closes the organic-matter cycle in a model of genuine circular economy.

DIAGRAM 01 · for farmers, livestock producers and agri-food companies

Your waste becomes energy — and your fertiliser

We transform organic AGRO by-products (slurries, manures, crop residues…) into renewable energy (biomethane and bio-CO₂) and organic fertilisers. And you, as an AGRO partner, can share in the value generated by this new opportunity for the sector.
YOU, AGRO partner at the centre of the project 1 · Your by-products slurries · manures · agri-food residues 2 · Local plant in your district 3 · Energy 4 · Your fertiliser returns to the field 5 · Your land more fertile soil
A beneficial circle that opens and closes on your land: the organic fertiliser improves your soil, feeds your crops and your livestock, and the organic-matter cycle begins again. Clean energy and local organic fertiliser, without leaving your land, cutting fertilisation costs and improving the organic-matter content of your soils.
Sources: Agro-Methane cycle (GGiV corporate presentation, 2026); digestate as a fertiliser returning to the soil (IDAE), (EBA).
From the AGRO, for the AGROWe call it AGRO-METHANE because this energy comes from our territory, from our AGRO sector: agriculture, livestock farming, agri-food industries and forestry. The origin of our energy and the destination of our fertilisers is the Iberian countryside.
The cycle, step by step

From AGRO organic matter to the customers who need gas

1

Organic matter

Agricultural, livestock and forestry by-products from the surroundings of the production plant.

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2

Biogas

Produced by a natural process of anaerobic digestion of the organic matter.

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3

Agro-Methane + organic fertilisers

After cleaning the biogas we obtain biomethane of the quality required for injection into the gas grids. Digestion also yields a digested organic product from which we obtain organic fertilisers.

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4

End customers

The gas (methane/CH₄) injected into the grid is consumed in multiple energy, industrial and domestic applications. In our projects we also promote sustainable mobility, using our gas as a renewable fuel for lorry and tractor fleets. The bio-CO₂ is sold for industrial use or as a precursor of biofuels such as bioethanol. The organic fertiliser is used by our farmers or sold as a registered organic fertiliser.

Benefits

What Agro-Methane delivers

Renewable gases

Harnessing our organic by-products to produce clean energy and reduce dependence on fossil gas imported from oil-producing countries (bioeconomy and genuine circular economy).

Organic fertilisers

The digestate obtained from the biodigestion process is used to produce organic fertilisers that return to the field as enriched (N-P-K), matured organic fertiliser, improving the supply of organic matter and therefore the structure and the physical, chemical and biological properties of the soil (regenerative agriculture).

Fewer emissions, elimination of leachates

Reduction of greenhouse-gas emissions (CO₂ and CH₄) from the management of agricultural organic by-products. Elimination of nitrate leachates into aquifers. Using biomethane from organic by-products avoids between 80% and 100% of the CO₂ emissions arising from the use of fossil gas in the same energy applications.

Contribution to rural development

More population and more employment in the territory. We strengthen primary-sector activity with a new business that reinforces the management of organic by-products.

Bio-CO₂

High-purity biogenic CO₂ for the food industry and for the production of biofuels such as bioethanol.

Genuine circular economy

We create a genuine circular economy, generating a virtuous circle that closes the cycle of the organic matter our soils so badly need and integrates it into the production process of a renewable energy.

Sources: IDAE, FEGECA, EBA 2025.

Why Spain

A proven model in the European Union

Biomethane works in Europe thanks to a model of distributed, local waste management.

Decentralisation

Distribution across the whole country, close to the source of the waste, avoiding large infrastructure.

Agreements with producers

Integration in the territory, helping keep population in rural areas and returning organic fertiliser to the field.

Environmental regulatory compliance

Better waste management, use of the best available techniques and elimination of landfill.

Denmark

Has covered more than 50% of its gas consumption with biomethane, with a target of 100% by 2030.

France

Has multiplied its biomethane production tenfold in recent years.

Italy

Has the EU's largest fleet of biomethane-powered vehicles.

Germany

Europe's biogas leader: thousands of plants in operation and high social acceptance.

The grievance map: Spain vs the European Union

CountryInstalled plantsData year
France6752024
Germany2542024
Italy1332024
United Kingdom1192024
Netherlands792024
Sweden742024
Denmark582024
Switzerland422024
Finland242024
Austria162024
Norway142024
Spain24-25year-end 2025

European ranking (12 countries, 2024 data): European Biomethane Map 2024 (GIE/EBA). Spain updated to year-end 2025: Sedigas. National potential: 163 TWh/year (Sedigas·PwC·Biovic). Country data: EBA.