
Enabling autonomy and energy transition
BGH is a major step forward for Wallonia and is fully in line with the European energy transition, responding to the ambitious objectives of the European "Fit for 55" program, the RED III Directive, and the Walloon Air Climate Energy Plan 2030 (PACE).
Its ambition? To reduce greenhouse gas emissions and strengthen Wallonia's energy independence through a biomethane production unit that uses agricultural effluents and agro-industrial residues.
Aligned with the Circular Wallonia program, this project provides a concrete solution for low-carbon management of agricultural effluents and agro-industrial residues, while contributing to the region's economic vitality.
By producing 340 GWh of biomethane per year, BGH is enabling Wallonia to take a huge step forward, as the unit alone will almost triple Wallonia's renewable green gas production.
Finally, by opting for biomethane produced by BGH rather than highly polluting fuels such as coke or coal, Walloon industries could significantly reduce their greenhouse gas emissions and make a concrete commitment to decarbonization.
Recovering resources
Biogas Hautrage transforms livestock manure and agro-industrial residues into renewable biomethane, a green energy that is injected directly into the natural gas network.
This local production reduces our dependence on imported fossil fuels, while recovering what was once considered waste.
It is a concrete and sustainable solution to accelerate Wallonia's energy transition, drawing on local resources and reintegrating them into a more sober and resilient economy.

Feeding the soil
Biogas Hautrage provides a concrete response to the impoverishment of Walloon soils by producing 220,000 tons of solid digestate each year, a natural fertilizer rich in stable carbon. Comparable to manure, but without any odor, this digestate improves soil fertility, enhances humus production, and increases water retention, reducing irrigation needs.
This digestate will be offered to local farmers who are partners in the project. They will thus benefit from a high-quality, local, circular, and economical organic fertilizer with complete traceability.
By returning high-quality organic matter to agricultural land, Biogas Hautrage helps farmers rebuild living, productive soils in a sustainable manner that respects natural resources.

Working with local farmers
The project is also based on a model of close collaboration with local farmers, offering them the opportunity to recover and capture the emissions generated by their effluents without having to invest in expensive equipment such as on-farm biomethanization units or gas treatment systems. In return, they benefit from high-quality pasteurized digestate, either solid or liquid, tailored to the needs of their soil.
Several avenues for collaboration are possible, based on the principle of returning nutrients to the soil provided by Walloon partner farmers:
• Sale or exchange of manure for the solid fraction of digestate • Exchange of slurry for liquid digestate spread • Service contract allowing the construction of storage tanks for liquid digestate owned by the farmer • Purchase and spreading of liquid/solid fertilizer according to local demand.
This partnership promotes sustainable nitrogen management and improves soil quality through the addition of stable carbon, enabling farms to reduce their fertilizer costs while strengthening their resilience to climate and regulatory challenges.
Any questions?
Whether you are a local resident, a farmer interested in collaboration, or simply curious, our team is here to help.

