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GKW, CHP modernisation
GKW, BHKW Modernisierung — original title
Your path to submission
- Deadline for requests to participate: 30 November at 10:00 — 29 days left. Two-stage procedure: by this deadline you submit a request to participate (proof of eligibility). Only shortlisted firms are then invited to submit a tender.
- The submission point is stated in the notice (link on this page).
- Offer and evidence in: German.
- Collect your evidence — use the eligibility analysis on this page: it lists the requirements and, for known certificates, how to get them.
What the buyer is looking for
Planning services GKW BHKW Modernization The city drainage companies Cologne, AöR (short: StEB Köln), are a service provider of water management and, as a municipal company of the City of Cologne, a public contracting authority. In addition to the core task of collecting, discharging and cleaning wastewater, energy production from e.g. sewage gas, photovoltaics and now also wind power is becoming increasingly important. The aim here is not only to set up the sewage treatment plants in an energy-neutral manner, but also to produce CO2-neutral surplus energy and thus make a contribution to the climate neutrality of the entire city of Cologne. The subject of the tender is the modernisation of the combined heat and power plant (CHP plant) of the large sewage treatment plant in Cologne-Stammheim. CHP modules 1 to 3 were commissioned in 2012, CHP 4 in 2022. Gas engines 1 to 3 are to be renewed…
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… from 2028. Required planning services are in particular: Renewal and redesign of CHP modules including generators, heat extraction, emergency cooling, exhaust systems, indoor air technology as well as electrical, measurement, control and regulation technology; Investigation of different CHP configurations and control concepts (current-guided, heat-guided, flexible) on the basis of a dynamic energy simulation model of the large-scale sewage treatment plant including the consideration of a large-scale battery storage system; Exhaust gas treatment and emission reduction according to the requirements of the 44, which have been tightened since 2029. BImSchV (including SCR catalysts, alternatives to nitrogen oxide reduction) and investigation of methane slip reduction; Establishment and implementation of an emergency power concept with extensive automation of the step chain including specifications, monitoring of programming, FAT and trial operation; Fire and explosion protection, accident prevention according to 12. BImSchV, ventilation and air-conditioning technology, lightning protection, object and flood protection as well as system certification and coordination with the grid operator. It is planned to commission the object planning of civil engineering structures according to § 41 HOAI, LP 1-9, including the technical equipment according to § 53 HOAI, LP 1-9, as well as the structural design as required. A step-by-step assignment is planned. Reference is made to the terms of reference. · The subject of this call for tenders is engineering services. The subject of the tender is the modernisation of the combined heat and power plant (CHP plant) of the large sewage treatment plant in Cologne-Stammheim. CHP modules 1 to 3 were commissioned in 2012, CHP 4 in 2022. Gas engines 1 to 3 are to be renewed from 2028. Required planning services are in particular: Renewal and redesign of CHP modules including generators, heat extraction, emergency cooling, exhaust systems, indoor air technology as well as electrical, measurement, control and regulation technology; Investigation of different CHP configurations and control concepts (current-guided, heat-guided, flexible) on the basis of a dynamic energy simulation model of the large-scale sewage treatment plant including the consideration of a large-scale battery storage system; Exhaust gas treatment and emission reduction according to the requirements of the 44, which have been tightened since 2029. BImSchV (including SCR catalysts, alternatives to nitrogen oxide reduction) and investigation of methane slip reduction; Establishment and implementation of an emergency power concept with extensive automation of the step chain including specifications, monitoring of programming, FAT and trial operation; Fire and explosion protection, accident prevention according to 12. BImSchV, ventilation and air-conditioning technology, lightning protection, object and flood protection as well as system certification and coordination with the grid operator. It is planned to commission the object planning of civil engineering structures according to § 41 HOAI, LP 1-9, including the technical equipment according to § 53 HOAI, LP 1-9, as well as the structural design as required. A stepwise white
Contract
Type of service
Clement What the numbers say about this buyer
- In this sector the buyer awards roughly every 4 months (37 awards, most recently September 2026) — the next award is due around January 2027 by that rhythm. The last award went to Thielen & Mahlberg Ingenieure.n = 37
- 47% of the bids received came from small and medium-sized enterprises (19 procedures with a bid mix). Sector: 91%.n = 19
- 40% of this buyer's awards went to companies that had already won here before (185 awards since 2018, spread over 105 companies). 60% went to new names.n = 185 awards since 2018
- The median procedure drew 2 bids (168 procedures with a bid count); 24% ended with a single bidder. Sector: median 3 bids.n = 168
- Across 10 procedures with structured selection criteria, this buyer most often required: Professional register enrolment (10 of 10), Professional liability insurance (6 of 10), References: services (6 of 10), Minimum turnover in the contract field (3 of 10).n = 10
From this buyer's documented awards; comparison values from the same sector and country. Not a forecast, not legal advice. As of 01/11/2026.
What you must prove — eligibility criteria
Befähigung und Erlaubnis der Berufsausübung: Ist der Bieter/Bewerber zur Eintragung in ein Handels- bzw. Berufsregister oder der Handwerksrolle seines Sitzes oder Wohnsitzes verpflichtet, hat er dies mit Abgabe seines Angebots/Teilnahmeantrags zu erklären. Die… read in fullcollapse
Mindestanforderung: 1. Tabellarische Liste, in der die zur Leistungserbringung vorgesehenen Personen namentlich und unter Angabe der jeweiligen Befähigung zur Berufsausübung, die auf Verlangen durch Vorlage von Berufszulassungsurkunden bzw. Studiennachweisen o… read in fullcollapse
Mindestanforderung: Der Bewerber hat seine besondere Erfahrung durch mindestens 3 geeignete Referenzen nachzuweisen. 1. Der Bewerber muss seine besondere Erfahrung durch mindestens drei Referenzen nachweisen. Die Referenzen müssen jeweils Objekte der technisch… read in fullcollapse
Mindestanforderung: 1. Erklärung über den Gesamtumsatz des Bewerbers und seines Umsatzes für Planungsleistungen, die mit den ausgeschriebenen Planungsleistungen vergleichbar sind, in den letzten 3 Geschäftsjahren (§ 122 Abs. 2 Nr. 2 GWB). 2. Erklärung, ob und … read in fullcollapse
Mindestanforderung: Der Bewerber muss über eine Haftpflichtversicherung verfügen, deren Deckungssumme für Personenschäden mindestens 3 Millionen EUR und zusätzlich für sonstige Sach- und Vermögensschäden mindestens 2 Millionen EUR beträgt. Dies ist durch eine … read in fullcollapse
Auswahlkriterium (Punktevergabe) Objektive Kriterien zur Beschränkung der Zahl der Bewerber, die zur Angebotsabgabe bzw. Teilnahme aufgefordert werden 1. Erfahrung des Bewerbers mit der Erbringung von Ingenieurleistungen für Maßnahmen, die die Mindestanforderu… read in fullcollapse
Tender documents — direct download
Who has won at this buyer so far
Across all contract types of this buyer — not just this sector. A city buys software and fire engines through the same purchasing office.
| Company | Awards | Period |
|---|---|---|
| Remondis Aqua GmbH & Co. KG · Mülheim an der Ruhr | 9 | 2008–2017 |
| RheinEnergie AG · Köln | 7 | 2007–2019 |
| Heitkamp IB GmbH · Wesseling | 7 | 2011–2020 |
| REMONDIS Aqua Stoffstrom GmbH & Co. KG · Lünen | 6 | 2017–2024 |
| Solenis Germany GmbH & Co. KG | 6 | 2019–2026 |
How often this buyer tenders this kind of work
Tactics
When this buyer has awarded in this sector, usually only one or two bids came in. A solid bid has a real chance here. (Based on 47 completed awards — not a statement about this procedure.)
This procedure allows 33 days between publication and deadline — typical in this country is 32 (median of 20,496 procedures). A normal window for this market.
The deadline falls on a Monday — your last full working day is the Friday before. Have evidence and guarantees together by Thursday.
Foreign bidders
In Germany · Architecture & engineering, 404 contracts went to foreign companies over the last 3 years (of 111,169 recorded awards) — mostly from Austria, Switzerland, Poland.
Submission language: German.
How to bid
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