Limoy - PV on landfill
Building a Solar Farm on a Contaminated Site in Collaboration with SPAQUE
Building a Solar Farm on a Contaminated Site in Collaboration with SPAQUE
Revitalizing a Landfill by producing 1800 MWh on a yearly base to cover more than 3000 houselholds in Wallonia



Sector 2
Sector 2
Date
Q2 2025
Location
Limoy, Province of Namur, Belgium
Value
2,5 MWp
Overview
This is an innovative project with a positive impact on the municipality of Limoy and its natural environment. In collaboration with SPAQUE, Ether Energy and SunBuild are participating in the rehabilitation of the former landfill, transforming it into a greener space. The Walloon Region has classified the Limoy landfill as one of the most polluted sites in Wallonia. This environmental degradation stems from the site's past use as a sand pit and later as a disposal area for household waste and bulky items. Currently, SPAQUE is undertaking redevelopment work to treat the polluted soil and restore the degraded environment. Around thirty wells, equipped with pumps, have been installed throughout the waste mass to collect polluted water.
To accelerate the landfill’s rehabilitation and provide green electricity to power these wells, Ether Energy submitted a single Class 2 permit application in Namur in November 2023. The plan involves installing solar panels on the site, along with a network of hedges. Part of the electricity generated will be used to power the degassing facility, while the surplus will be injected into the grid. The project is also compatible with local energy communities.
Challenge
Due to the site's residual but still present emissions, agricultural use of the land is not feasible. Instead, Ether Energy and SunBuild intends to install a ground-mounted solar farm with an east-west orientation to maximize electricity production, considering the land’s sunshine exposure and orientation. To enhance biodiversity and improve the environmental quality of the surrounding area, a network of hedges will be planted around the project. Our partner, PlantC, specializing in hedge diagnostics, has carefully selected hedge species that will aid in restoring the local ecosystem.
This solar farm project aligns with Wallonia's Recovery Plan, particularly its initiative to accelerate the rehabilitation of the most problematic landfills. In partnership with SPAQUE, an agency specializing in waste management in Wallonia, Ether Energy is contributing to the restoration of a deteriorated ecosystem. The solar panels will cover a 2.6-hectare area using zero-concrete technology.
Solution
The Project’s Contribution to Key Transitions:
Agricultural Transition
PlantC has selected hedge species that will support the restoration of the local ecosystem. A new tree hedge of approximately 150 meters will be planted along the eastern side of the site, featuring species similar to those already present in the area.
Environmental Transition
The project contributes to environmental rehabilitation by integrating sustainable vegetation and supporting local biodiversity.
Energy Transition
The growing need for renewable energy is driving a natural transition in energy policies. This project aligns with these objectives by contributing to the development of sustainable energy sources.
The Limoy solar farm will generate electricity for the next 30 years, with a maximum capacity of 2.5 MWp by 2024, utilizing approximately 3,500 solar panels. The project is also compatible with a Renewable Energy Community. Permit applications have been submitted, and a public inquiry is currently underway.




Application
Agri-PV
Date
Q2 2025
Location
Limoy, Province of Namur, Belgium
Size
2,5 MWp
Overview
This is an innovative project with a positive impact on the municipality of Limoy and its natural environment. In collaboration with SPAQUE, Ether Energy and SunBuild are participating in the rehabilitation of the former landfill, transforming it into a greener space. The Walloon Region has classified the Limoy landfill as one of the most polluted sites in Wallonia. This environmental degradation stems from the site's past use as a sand pit and later as a disposal area for household waste and bulky items. Currently, SPAQUE is undertaking redevelopment work to treat the polluted soil and restore the degraded environment. Around thirty wells, equipped with pumps, have been installed throughout the waste mass to collect polluted water.
To accelerate the landfill’s rehabilitation and provide green electricity to power these wells, Ether Energy submitted a single Class 2 permit application in Namur in November 2023. The plan involves installing solar panels on the site, along with a network of hedges. Part of the electricity generated will be used to power the degassing facility, while the surplus will be injected into the grid. The project is also compatible with local energy communities.
Challenge
Due to the site's residual but still present emissions, agricultural use of the land is not feasible. Instead, Ether Energy and SunBuild intends to install a ground-mounted solar farm with an east-west orientation to maximize electricity production, considering the land’s sunshine exposure and orientation. To enhance biodiversity and improve the environmental quality of the surrounding area, a network of hedges will be planted around the project. Our partner, PlantC, specializing in hedge diagnostics, has carefully selected hedge species that will aid in restoring the local ecosystem.
This solar farm project aligns with Wallonia's Recovery Plan, particularly its initiative to accelerate the rehabilitation of the most problematic landfills. In partnership with SPAQUE, an agency specializing in waste management in Wallonia, Ether Energy is contributing to the restoration of a deteriorated ecosystem. The solar panels will cover a 2.6-hectare area using zero-concrete technology.
Solution
The Project’s Contribution to Key Transitions:
Agricultural Transition
PlantC has selected hedge species that will support the restoration of the local ecosystem. A new tree hedge of approximately 150 meters will be planted along the eastern side of the site, featuring species similar to those already present in the area.
Environmental Transition
The project contributes to environmental rehabilitation by integrating sustainable vegetation and supporting local biodiversity.
Energy Transition
The growing need for renewable energy is driving a natural transition in energy policies. This project aligns with these objectives by contributing to the development of sustainable energy sources.
The Limoy solar farm will generate electricity for the next 30 years, with a maximum capacity of 2.5 MWp by 2024, utilizing approximately 3,500 solar panels. The project is also compatible with a Renewable Energy Community. Permit applications have been submitted, and a public inquiry is currently underway.



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30A, St. Michel's Road,
1040, Brussels.
+32 474 792 892
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Powering a brighter future.
Infos
30A, St. Michel's Road,
1040, Brussels.
+32 474 792 892
Copy mail
copy mail
Vacancies
Powering a brighter future.
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SunBuild
Infos
30A, St. Michel's Road,
1040, Brussels.
+32 474 792 892
Powering a brighter future.
Infos
30A, St. Michel's Road,
1040, Brussels.
+32 474 792 892