Solar – Klärwerk Böblingen (Schneckenhebewerk)
Solar over the screws – clean power, maintenance-ready by design On behalf of E.I.M.G. we covered the screw pump station of the Böblingen wastewater plant with a steel structure of about 25 tonnes
and installed the PV system on top. The concept is straightforward and future-proof: create solar area without sealing additional land – using existing infrastructure twice.
The key challenge is maintenance. Screw pumps require frequent service and often need crane access. A conventional fixed PV
substructure would have restricted accessibility and slowed down operations. That is why we engineered a modular approach: modules,
substructure and cabling were preassembled on skids that can be lifted off quickly and efficiently. When maintenance is due, the plant
team can clear the work zone and reach the equipment without delay.
The steelwork was produced in Ramec 1. The result is a robust, service-friendly canopy that adds a reliable renewable energy source to
the site – without compromising operational safety or maintenance efficiency.
Close coordination with ongoing plant operation was essential: fabrication, preassembly and delivery were scheduled to keep downtime
to a minimum. The skid concept therefore adds more than service flexibility – it improves safety and workflows on site. A solid example
of how steelwork and PV can be integrated into critical infrastructure in a truly practical way. With this approach, solar generation
becomes an add-on that supports the plant’s mission instead of getting in its way.
Facts (Project 23):
| Tonnage | Location | Project Type | Date |
| 25 tons | Sindelfingen, Germany (Klärwerk Böblingen) | Solar Support + PV (modular skids) | Dec 2025 |