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KVA Kebag Enova
KVA Kebag Enova
Zuchwil, Switzerland
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Other Projects by Penzel Valier
KVA Kebag Enova
Zuchwil, Switzerland
Kebag Enova is a new waste-to-energy facility at the foot of the Jura Mountains, positioned between the urban edge of Solothurn and the floodplain of the Aare River. Conceived as more than a technical replacement for the 1970s incineration plant, the project redefines large-scale infrastructure as an integrated architectural and landscape landmark with strong regional identity.
The architectural concept translates process logic into form. A grounded concrete plinth anchors the building to the terrain, housing the waste bunkers and structurally demanding functions, while a lighter, aluminum-clad upper volume encloses the combustion and energy-recovery systems. A continuous ribbon window marks the transition between these elements, offering views into the machinery hall and making the energy process legible from the outside. Rising above the complex, the sculptural chimney, the “Bellevue Tower”, serves as a vertical counterpoint and a new point of orientation within the valley.
Materiality reinforces this dialogue between mass and lightness. Robust concrete provides durability, fire safety, and structural clarity, while a proprietary construction method embeds locally sourced natural stone directly into the concrete façade, rooting the building in its geological context. Nearly 60% of the concrete volume uses recycled material, combined with low-carbon cement to reduce embodied emissions.
Functionally, the plant follows a clear linear process: delivery, combustion, energy recovery, and emission treatment, optimized through close collaboration between architects, engineers, and process specialists. Model-based planning and fully digital construction workflows enabled high precision and efficiency.
The building’s impact extends beyond energy production. Integrated photovoltaic façades and roof panels generate approximately 1.4 MWp, visibly expressing the transition toward renewable energy. By transforming waste into electricity, district heating, and recoverable materials, Kebag Enova becomes a symbol of circular economy, technological transparency, and resilient infrastructure embedded within the landscape.
The architectural concept translates process logic into form. A grounded concrete plinth anchors the building to the terrain, housing the waste bunkers and structurally demanding functions, while a lighter, aluminum-clad upper volume encloses the combustion and energy-recovery systems. A continuous ribbon window marks the transition between these elements, offering views into the machinery hall and making the energy process legible from the outside. Rising above the complex, the sculptural chimney, the “Bellevue Tower”, serves as a vertical counterpoint and a new point of orientation within the valley.
Materiality reinforces this dialogue between mass and lightness. Robust concrete provides durability, fire safety, and structural clarity, while a proprietary construction method embeds locally sourced natural stone directly into the concrete façade, rooting the building in its geological context. Nearly 60% of the concrete volume uses recycled material, combined with low-carbon cement to reduce embodied emissions.
Functionally, the plant follows a clear linear process: delivery, combustion, energy recovery, and emission treatment, optimized through close collaboration between architects, engineers, and process specialists. Model-based planning and fully digital construction workflows enabled high precision and efficiency.
The building’s impact extends beyond energy production. Integrated photovoltaic façades and roof panels generate approximately 1.4 MWp, visibly expressing the transition toward renewable energy. By transforming waste into electricity, district heating, and recoverable materials, Kebag Enova becomes a symbol of circular economy, technological transparency, and resilient infrastructure embedded within the landscape.
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