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Technical planning services for mechanical and electrical building installations - wastewater treatment plant biology renewal, Kassel

Original Deutschland - Technische Planungsleistungen für maschinen- und elektrotechnische Gebäudeanlagen - Objektplanungsleistungen für das Ingenieurbauwerk mit der diesem dienenden Maschinentechnik

Open Contract notice

Key facts

Where
Germany Kassel
Procedure
Negotiated procedure The buyer selects candidates, then negotiates the offers before choosing. Full entry Above the EU threshold A contract large enough that EU-wide rules apply and it must be published on TED. Full entry
Original language
German
Published
Source
via TED - Tenders Electronic Daily (Publications Office of the EU), verified 1 month ago
Notice number
845421-2025
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The Aperlena Verdict

Open race

No supplier dominates: 3 different companies have won the last 3 comparable contracts from this buyer over 5 years. This is a genuinely open race.

Based on 3 comparable awards by this buyer in this sector over 5 years. Every verdict is recorded before the outcome and graded against the award notice. How we score ourselves.

Summary

Machine-generated summary

The City of Kassel is procuring planning services for the mechanical renewal of the biology section of its wastewater treatment plant. The scope includes renewal of the mechanical and EMSR (control and instrumentation) technology, with migration to the PLC technology currently used at the plant. The aeration system and stirrers are to be modernised, and the PLC migration must be carried out during ongoing plant operation. Preliminary design must examine a two-stage cascade denitrification as an alternative, and aeration system variants for the preferred process option. Details are in the service description forming part of the tender documents.

Description

Die Stadt Kassel beabsichtigt die maschinentechnische Erneuerung der Biologie ihrer Kläranlage. Mit diesem Los werden die dafür erforderlichen Planungsdienstleistungen ausgeschrieben. Neben der Maschinentechnik ist auch die EMSR-Technik zu erneuern und dabei auf die aktuell auf der Kläranlage verwendete SPS-Technologie anzupassen/zu migrieren. Im Zuge dessen sollen insbesondere das gesamte Belüftungssystem sowie die Rührwerke modernisiert werden. Die Migration der SPS-Technologie ist während des laufenden Anlagenbetriebs durchzuführen. Zudem ist im Rahmen der Vorplanung die Umstellung auf eine 2-stufige Kaskadendenitrifikation als Variante im Vergleich zur Beibehaltung der vorgeschalteten Denitrifikation untersucht werden. Für die verfahrenstechnische Vorzugsvariante sollen Varianten des Belüftungssystems geprüft werden. Weitere Einzelheiten ergeben sich aus der Leistungsbeschreibung, die Bestandteil der Vergabeunterlagen sind.

Official source

Source: TED - Tenders Electronic Daily (Publications Office of the EU)

Always verify details on the official notice.

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Last verified against TED - Tenders Electronic Daily (Publications Office of the EU) 1 month ago

More from this buyer

Full buyer profile

9 open tenders right now

Who usually wins this buyer's contracts in this sector

Company Wins Total awarded Last win
Ingenieurbüro Oppermann GmbH 1 €1.3M Sep 2025
DAHLEM Beratende Ingenieure 1 €358,814 Apr 2026
Wohnstadt Stadtentwicklungs- und Wohnungsbaugesellschaft Hessen mbH 1 €74,580 Apr 2026

Based on 3 awards with a linked company profile over the last 5 years.

What this buyer has paid before

Based on 3 comparable contracts this buyer awarded in this sector over the last 4 years.

Lower quartile
€216,697
Median award
€358,814
Upper quartile
€819,713

Most recent awards

Award values as published by the official sources. Use them as a guide, not a rule: scope, lots and duration differ between contracts.

Similar tenders

Market context

Avg. open tender · Architecture & engineering services
€9,614,806
14,808 open across Europe right now
Buyer track record on Aperlena
90 notices tracked · 47 awarded
€12,509,307 in awarded contracts

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