Alpha Ventus Decommissioning - WTG scope

The contract shall include all the required work for the decommissioning of Wind Turbine Generators (WTGs) for the Alpha Ventus Offshore Wind Farm. The scope of work for the decommissioning of 12 WTGs (6x Adwen AD 5-116 and 6x Senvion 5M; 5 MW rated power each) at Alpha Ventus shall …

CPV: 98391000 Services de déclassement, 31121320 Turbines éoliennes, 31121330 Générateurs à turbines éoliennes, 45244100 Installations maritimes, 60651100 Location de navires de mer avec équipage, 76521000 Services d'installation offshore, 76522000 Services offshore de navires ravitailleurs
Lieu d'exécution:
Alpha Ventus Decommissioning - WTG scope
Service d'adjudication:
Vattenfall
Numéro d'adjudication:
2d593b99-9f25-40c6-99d3-522b1322e20f

1. Buyer

1.1 Buyer

Official name : Vattenfall
Activity of the contracting entity : Electricity-related activities

2. Procedure

2.1 Procedure

Title : Alpha Ventus Decommissioning - WTG scope
Description : The contract shall include all the required work for the decommissioning of Wind Turbine Generators (WTGs) for the Alpha Ventus Offshore Wind Farm. The scope of work for the decommissioning of 12 WTGs (6x Adwen AD 5-116 and 6x Senvion 5M; 5 MW rated power each) at Alpha Ventus shall comprise: - Offshore dismantling of WTGs (i.e. rotor-nacelle-assemblies and towers) and offshore transport, providing all required vessels, equipment, tools and personnel. - Load-in and onshore handling, providing all required port/harbour facilities and support services. - Onshore processing of WTG components and waste management, providing all temporary storage, transport and facilities until final disposal. In this context disposal includes re-use, recycling and recovery of energy of materials. - Provision of required marking and make safe activities for the remaining foundation structures following WTG removal. - Provision of all required planning documentation and engineering works as well as project management activities for the above decommissioning scope. The works are expected to commence from early 2027 onwards, however we are also considering start dates in 2028.
Procedure identifier : 5a70a19e-6850-407a-a3d9-26bd8eacff2c
Internal identifier : 2d593b99-9f25-40c6-99d3-522b1322e20f
Type of procedure : Negotiated with prior publication of a call for competition / competitive with negotiation

2.1.1 Purpose

Main nature of the contract : Services
Additional nature of the contract : Works
Main classification ( cpv ): 98391000 Decommissioning services
Additional classification ( cpv ): 31121320 Wind turbines
Additional classification ( cpv ): 31121330 Wind turbine generators
Additional classification ( cpv ): 45244100 Marine installations
Additional classification ( cpv ): 60651100 Hire of sea-going vessels with crew
Additional classification ( cpv ): 76521000 Offshore installation services
Additional classification ( cpv ): 76522000 Offshore supply-vessel services

2.1.2 Place of performance

Country subdivision (NUTS) : Oldenburg (Oldenburg), Kreisfreie Stadt ( DE943 )
Country : Germany
Additional information : See documentation - The contracting entity to enter into the contract for Alpha Ventus Offshore Wind Farm Decommissioning is Deutsche Offshore-Testfeld und Infrastruktur GmbH & Co. KG, Tirpitzstraße 39, 26122 Oldenburg, Germany. Registered in Germany. Employer reserves the right to change the entity.

2.1.3 Value

Estimated value excluding VAT : 16 000 000 Euro

2.1.4 General information

Legal basis :
Directive 2014/25/EU

2.1.6 Grounds for exclusion

Sources of grounds for exclusion : Procurement Document

5. Lot

5.1 Lot technical ID : LOT-0000

Title : Alpha Ventus Decommissioning - WTG scope
Description : The contract shall include all the required work for the decommissioning of Wind Turbine Generators (WTGs) for the Alpha Ventus Offshore Wind Farm. The scope of work for the decommissioning of 12 WTGs (6x Adwen AD 5-116 and 6x Senvion 5M; 5 MW rated power each) at Alpha Ventus shall comprise: - Offshore dismantling of WTGs (i.e. rotor-nacelle-assemblies and towers) and offshore transport, providing all required vessels, equipment, tools and personnel. - Load-in and onshore handling, providing all required port/harbour facilities and support services. - Onshore processing of WTG components and waste management, providing all temporary storage, transport and facilities until final disposal. In this context disposal includes re-use, recycling and recovery of energy of materials. - Provision of required marking and make safe activities for the remaining foundation structures following WTG removal. - Provision of all required planning documentation and engineering works as well as project management activities for the above decommissioning scope. The works are expected to commence from early 2027 onwards, however we are also considering start dates in 2028.
Internal identifier : 6148b7f0-da0c-49ed-a1b8-31f1f18f56b8

5.1.1 Purpose

Main nature of the contract : Services
Additional nature of the contract : Works
Main classification ( cpv ): 98391000 Decommissioning services
Additional classification ( cpv ): 31121320 Wind turbines
Additional classification ( cpv ): 31121330 Wind turbine generators
Additional classification ( cpv ): 45244100 Marine installations
Additional classification ( cpv ): 60651100 Hire of sea-going vessels with crew
Additional classification ( cpv ): 76521000 Offshore installation services
Additional classification ( cpv ): 76522000 Offshore supply-vessel services

5.1.2 Place of performance

Country subdivision (NUTS) : Oldenburg (Oldenburg), Kreisfreie Stadt ( DE943 )
Country : Germany
Additional information : See documentation - The contracting entity to enter into the contract for Alpha Ventus Offshore Wind Farm Decommissioning is Deutsche Offshore-Testfeld und Infrastruktur GmbH & Co. KG, Tirpitzstraße 39, 26122 Oldenburg, Germany. Registered in Germany. Employer reserves the right to change the entity.

5.1.3 Estimated duration

Duration : 2 027 Year

5.1.5 Value

Estimated value excluding VAT : 16 000 000 Euro

5.1.6 General information

Reserved participation : Participation is not reserved.
The procurement is covered by the Government Procurement Agreement (GPA) : no

5.1.9 Selection criteria

Sources of selection criteria : Procurement Document
Information about the second stage of a two-stage procedure :
The procedure will take place in successive stages. At each stage, some participants may be eliminated

5.1.11 Procurement documents

Languages in which the procurement documents are officially available : English
Deadline for requesting additional information : 28/10/2025 16:00 +00:00
Address of the procurement documents : https://s2c.mercell.com/today/176350

5.1.12 Terms of procurement

Terms of the procedure :
Estimated date of dispatch of the invitations to submit tenders : 01/12/2025
Terms of submission :
Electronic submission : Required
Languages in which tenders or requests to participate may be submitted : English
Electronic catalogue : Not allowed
Variants : Not allowed
Tenderers may submit more than one tender : Not allowed
Description of the financial guarantee : Parent Company Guarantee required with ITT
Deadline for receipt of expressions of interest : 07/11/2025 16:00 +00:00
Terms of contract :
The execution of the contract must be performed within the framework of sheltered employment programmes : No
A non-disclosure agreement is required : yes
Additional information about the non-disclosure agreement : See documentation
Legal form that must be taken by a group of tenderers that is awarded a contract : See documentation
Financial arrangement : See documentation

5.1.15 Techniques

Framework agreement :
No framework agreement
Information about the dynamic purchasing system :
No dynamic purchase system

5.1.16 Further information, mediation and review

Information about review deadlines : See documentation
Organisation providing additional information about the procurement procedure : Vattenfall
Organisation providing offline access to the procurement documents : Vattenfall
Organisation receiving requests to participate : Vattenfall
Organisation processing tenders : Vattenfall

8. Organisations

8.1 ORG-0001

Official name : Vattenfall
Registration number : 556036-2138
Town : Hamburg
Postcode : 20457
Country subdivision (NUTS) : Hamburg ( DE600 )
Country : Germany
Contact point : Jon Arruza
Telephone : +4915118474894
Roles of this organisation :
Buyer
Organisation providing additional information about the procurement procedure
Organisation providing offline access to the procurement documents
Organisation receiving requests to participate
Organisation processing tenders

8.1 ORG-0002

Official name : Mercell Holding ASA
Registration number : 980921565
Postal address : Askekroken 11
Town : Oslo
Postcode : 0277
Country subdivision (NUTS) : Oslo ( NO081 )
Country : Norway
Contact point : eSender
Telephone : +47 21018800
Fax : +47 21018801
Internet address : http://mercell.com/
Roles of this organisation :
TED eSender

Notice information

Notice identifier/version : 8e874d9b-4067-46b8-b0c5-c3d580cf5a7f - 01
Form type : Competition
Notice type : Prior information notice or a periodic indicative notice used as a call for competition – standard regime
Notice dispatch date : 09/10/2025 09:50 +00:00
Notice dispatch date (eSender) : 09/10/2025 09:52 +00:00
Languages in which this notice is officially available : English
Notice publication number : 00664779-2025
OJ S issue number : 195/2025
Publication date : 10/10/2025