Public procurement notice: Contract Notice
Published: 2025-04-07
Buyer: 50Hertz Transmission GmbH
Country: DE
Region: DEA22
Contract type: Works
Procedure: Negotiated with prior call for competition
CPV classification: 31170000 | 31200000 | 45232220 | 45232221 | 45317200
Submission deadline: 2025-05-05
Award criteria: cost, quality

Technical requirements: The grounds for exclusion listed here are not an exhaustive list of grounds for exclusion. The complete list of grounds for exclusion can be found in the tender documents.
Pursuant to §17d EnWG, transmission system operators must construct and operate offshore connections as defined in the German Grid Development Plan (NEP) and the Site Development Plan (FEP) according to §5 WindSeeG. 
 
In this context, 50Hertz is responsible for the offshore grid connection for the two offshore sites N-12.4 and N-12.5. The planned total generation capacity of the two offshore sites N-12.4 and N-12.5 amounts to 2 GW. Therefore, 50Hertz introduced the project NSC2 which will connect the two wind farm sites to the onshore grid. The grid connection system will be realised with 525 kV DC technology and a transmission capacity of 2 GW with a required Readiness-for-Trial-Operation in 03/2034.

NSC2 comprises the projects LanWin6 and DC32 and is integrated into the NordHub. The scope of all three projects is briefly described in the following. 

The LanWin6 project (defined as project NOR-12-3 in the NEP) aims at the connection of the two offshore wind farm sites N-12.4 and N-12.5 via an offshore converter station and a DC sea and land cable connection to a Multiterminal Hub. The offshore wind farms will be connected via a 132 kV (AC) direct connection to the offshore converter station.

The Multiterminal Hub, to which LanWin6 is connected to, is planned in the Pöschendorf search area and is called NordHub. It will be designed as a 4-terminal hub, i.e. it will integrate the two converters of the NSC2 project and the two converters of the LanWin7 project (developed by German TSO TenneT to connect other offshore wind sites), respectively offshore and onshore, in a DC-switching station. The necessary MTDC technology standards, including but not limited to the HVDC system and control and protection requirements, are being developed in an ongoing ‘Innovation Partnership’ project of the four German TSOs with HVDC OEMs. This partnership aims at defining the basic design for the Multiterminal Hubs, prequalifying the required DC circuit breakers and providing the MTDC specifications. These specifications will outline the basic system requirements for multiterminal hub operation. The specifications will be available earliest in July 2025 and will therefore be made available to the Tenderer later in the Tender phase. Whereas the overall system in scope of the Tender is required to be fully MTDC-ready, the Multiterminal Hub as such is out of the scope of the Tender.

The NordHub will further be connected via a DC link to an onshore converter station near Mühlenbeck (near Schossin, Mecklenburg-Western Pomerania). This subproject of the NSC2 is called DC32 (as defined in the NEP).
 
In summary, the scope of the upcoming Tender covers the following two elements of the NSC2 project:
(1)	The Offshore Converter Station (part of LanWin6)
(2)	The Onshore Converter Station (part of DC32).

In addition to the EPCI Bid submission the following Service and Maintenance Agreements (SMA) are part of the Tender:
- SMA for converter systems including but not limited to the DC converters, primary systems, auxiliary systems, OT & IT systems.
- Option for the SMA for platform structure (above and below the water surface), auxiliary/ an-cillary systems (onshore and offshore station) such as but not limited to HVAC, cooling, fire-fighting/ detection, communication, water systems for technology and accommodation, res-cue and safety appliances, etc.


Further information regarding the tender scope is described in document "SCM.01.001-2GW_Project Introduction", which is directly available to applicants via the weblink mentioned under section 5.1.11 of the contract notice. 

For getting access to the Ariba platform and  later during the ITT-process, applicants are required to request the access to the tender platform by 
sending an e-mail to:

- Matthias Schäuble via email MatthiasWolfgang.Schaeuble@50hertz.com or 
- Viacheslav Shalaginov via email viacheslav.shalaginov@50hertz.com. 

Please provide following information in the email:
- Name of the candidate (and for legal entities, including the company form);
- Address of the candidate; 
- VAT number of the candidate; 
- Information of the contact person/contact persons for the tender (name, e-mail address and telephone number). 

Information to access the tender on the Ariba platform will be provided by e-mail as soon as possible. Candidates are advised to request this access as soon as possible and to click on ‘intend to participate’ in Ariba in order to receive possible clarifications from the contracting entity. The Candidates must submit by the closing date (see section 5.1.12) the selection questionnaire (SQ) with the most current available data together with the requested documents. Contracting Entity doesn’t guarantee to provide the Ariba login details before closing time for candidates requesting their access to Ariba less than 48 hours before closing time. The Candidates is solely responsible for requesting the access to the tender on the Ariba platform on time. The contracting entity declines any responsibility in the event of problems with the Ariba platform. Any application not sent correctly via Ariba will be rejected. 

The manuals for usage of E-Sourcing (Ariba) can be found via the following URL: http://www.elia.be/en/suppliers/information-and-tools-for-suppliers#ariba
Economic operators based in European Union or in a country with an international agreement on market access to the European Union. The same requirement has to be fulfilled for significant scope subcontractors and/ or in case of reliance on the capacities of other entities (subcontractors) to fulfil one or more Selection Criteria (in German “Eignungsleihe”).
The fabrication yard must be located within 5.000 km around the 50Hertz office location in Berlin, Heidestrasse 2, 10557 Berlin
No exclusion grounds according §§123, 124 GWB (in German "Gesetz gegen Wettbewerbsbeschränkungen, GWB")

Eligibility requirements: Economic operators based in European Union or in a country with an international agreement on market access to the European Union. The same requirement has to be fulfilled for significant scope subcontractors and/ or in case of reliance on the capacities of other entities (subcontractors) to fulfil one or more Selection Criteria (in German “Eignungsleihe”).
The fabrication yard must be located within 5.000 km around the 50Hertz office location in Berlin, Heidestrasse 2, 10557 Berlin
No exclusion grounds according §§123, 124 GWB (in German "Gesetz gegen Wettbewerbsbeschränkungen, GWB")
Confirmation that paid wages are compliant with the statutory minimum wage or collectively agreed remuneration regulations are obeyed, where applicable.
Self-declaration Sanctions against Russia according to the "SCM.01.004-2GW_Selection Questionnaire" available via link at the chapter 5.1.11 of this EU-Announcement documents
Technical Capability including Project References:

1. At least 1 (one) reference as contractor or as being the responsible and executing contract member (individual contractor / as being part of a consortium / as being subcontractor) for the converter system for a commissioned and operating HVDC system project with a transmission capacity of at least 800 MW.

The HVDC system under this reference project shall be considered as an HVDC offshore converter station as well as the corresponding onshore converter station. The reference project shall have successfully achieved BSH1 and BSH2 Release-certification via a statement of conformity according to BSH standard 7005, documents 513 and 520 respectively or should have been certifiable according to BSH regulations.

2. At least 1 (one) reference as contractor or as being the responsible and executing contract member (individual contractor / as being part of a consortium / as being subcontractor) of a commissioned and operating platform for an offshore HVDC or HVAC system project.

The offshore platform under this reference project shall be considered as an HVDC or HVAC offshore platform with topside and foundation. The reference project shall have successfully achieved BSH1 and BSH2 Release-certification via a statement of conformity according to BSH standard 7005, documents 513 and 520 respectively or should have been certifiable according to BSH regulations. 

In case of an application by a consortium:
- The project reference, item 1, needs to be fulfilled only by the consortium partner which is executing the main parts of the converter system.
- The project reference, item 2, needs to be fulfilled only by the consortium partner which is executing the main parts of the platform (topside & foundation)

The Candidate is required to provide a copy of the “SCM.01.008-2GW_Reference Table form” (as provided with document package of EU-notification) in unprotected Excel format, fully filled in with its list of project references and along with all requested information.
Candidate is required to provide the following proofs/references:

1.	Quality Management System certified in accordance with ISO 9001.
2.	Environmental management system certified in accordance with ISO 14001.
3.	Occupational health and safety management system certified in accordance with ISO 45001.
Has the average annual turnover been at least 2.5 billion EUR over the last three completed audited years? If the bidder was established more recently, a shorter period is acceptable.

If yes, please provide documentation proving above mentioned statement 
Clarification: in the case of a joint venture/consortium application, it is sufficient if either one member meets this criterion, or the criterion is met by the combined turnovers of two or more members; finally, a “Eignungsleihe” is also possible.
The Contracting Entities reserve the right to request additional documents in accordance with legal requirements (in particular § 51 SektVO; Regulation (in German "Verordnung") 2022/2560).
Details (e.g. requirements on joint and several liability) will be further provided with the start of the Bid Phase

Winner: 50Hertz Transmission GmbH