At the beginning of September 2025, our biogas plant received a new roof – an important step towards modernising the plant and making it more flexible. Between 1 and 6 of September, a pneumatic roof made of fabric-reinforced PVC was installed, replacing the existing roof and preparing the plant for the challenges of the future.
Why a new roof?
The wear and tear on the old roof and the need to comply with current requirements (TRAS, TRGS, TA-Luft) made renovation necessary. At the same time, the new roof serves to make production more flexible, enabling even more efficient control of gas, electricity and heat generation in the future.
Technical highlights
The pneumatic roof has several advantages:
- Larger gas storage facility that cushions downtime of the CHP plant due to maintenance or malfunction and causes less gas loss via the flare.
- Improved energy efficiency thanks to a low-E coating that optimises thermal insulation and reduces the system's heating requirements.
Despite the challenging conditions – such as the container diameter of 43 m and high wind loads – the roof was successfully implemented.
Sustainability and operational safety
The new roof also contributes to resource conservation:
- The use of glycol as an antifreeze agent is avoided by a system changeover in the overpressure safety devices, which reduces the use of chemicals.
- Improved fault detection enables early intervention and increases the operational reliability of the plant.
Collaboration and partners
The implementation was carried out in close cooperation with specialised partners:
- DBDS for the gas roof
- Ökobit for integrating electrical components into the control system
- Regional support from ARMO and AKV for aerial work platforms and crane work
Looking Ahead
The new roof is a key component in the future development of the biogas plant. Further planned modernisation measures focus on:
- Fermentation residue processing
- Automation
- Sector coupling
The aim is to continuously increase energy efficiency and operate the plant in a future-proof, flexible and sustainable manner.
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