Renewal of EMSR technology at the Kölner Straße stormwater overflow basin in Kerpen

Summary

The tender covers the renewal of electrical, measurement, control and automation technology at the Kölner Straße stormwater overflow basin in Kerpen. The works include constructing a new low-voltage main distribution board, reconnecting the transformers, renewing the compensation equipment, integrating the existing 24 V UPS system, upgrading automation and measurement equipment, installing cabling, and changing the network configuration to a TN-S system. During the conversion, the facility must remain operational using a temporary power supply. The temporary system must supply, among other consumers, screw pumps rated at 110 kW, 160 kW, 22 kW and 11 kW, plus smaller consumers, with a total load of 309 kW and a rated current of 571.5 A. The tender must be submitted in German electronically through the contracting authority’s platform by 22 October 2026 at 10:00. The expected execution period is November 2026 to June 2027. Work must start no later than 7 working days after the order or instruction from the site supervision, and a programme must be submitted within one week after confirmation of the order. Price is the only award criterion; a 15% bonus may be applied to a workshop for people with disabilities where the economic result is equal. The bidder must comply with strict electrical, explosion-protection, occupational-safety and commissioning requirements and provide defect-free TÜV records before acceptance.