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The TENNET OFFSHORE 9. BETEILIGUNGSGESELLSCHAFT MBH has issued a Tender notice for the procurement of a Helwin2 Ot Upgrade (Hw2-Otup) - Hmi Auxiliary Systems (Hmi-Aux) in the Germany. This Tender notice was published on 10 Oct 2025 and is scheduled to close on 10 Nov 2025, with an estimated Tender value of EUR 1. Interested bidders can access detailed Tender information, eligibility criteria, and complete bidding documents by referencing TOT Ref No. 127893867, while the tender notice number is 666758-2025 and Registering on the platform.
Procurement Summary
Country: Germany
Summary: Helwin2 Ot Upgrade (Hw2-Otup) - Hmi Auxiliary Systems (Hmi-Aux)
Deadline: 10 Nov 2025
Posting Date: 10 Oct 2025
Other Information
Notice Type: Tender
TOT Ref.No.: 127893867
Document Ref. No.: 666758-2025
Competition: ICB
Financier: Self Financed
Purchaser Ownership: Public
Tender Value: EUR 1
CPV Classification
51112200 - Installation services of electricity control equipmentPurchaser's Detail
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Email: Login to see tender_detailsLogin to see details Tender Details HelWin2 is TenneT's third grid connection system in the eastern North Sea and was implemented using direct current transmission technology. from the HelWin beta (HWBE) converter platform eighty-five kilometers as a submarine cable to the landing point in Buesum and from there forty-five Kilometer as an underground cable to the Buettel Konverter Drei (BUKD) converter station in Buettel in Schleswig-Holstein. Daughter platform of HelWin alpha (HWAL), the heart of the HelWin1 grid connection system. Die Both platforms are directly connected to each other via a bridge. can be used together. primary To enable the process of high-voltage direct current transmission, various auxiliary systems (AUX systems for short) are installed on the platform needed. The auxiliary systems include, among others, the Power Management System (PMS) to provide the platform's own electrical requirements, the Sea and fresh cooling water system for cooling various equipment, air conditioning and ventilation (Heating, Ventilation and Air Conditioning, HV&AC), as well as the fire alarm and extinguishing system. Documents
on...
Document Type: Contract Notice
Reference Number: d4ff57b0-de3f-42f1-a1ed-421685e9b451
Contract Type: services
Estimated Value: 1 - EUR
Doc Title: HelWin2 OT-Upgrade (HW2-OTUP) - HMI-Nebensysteme (HMI-Aux)
Dispatch Date: 2025-10-08
Publish Date: 2025-10-10
Submission Date: 2025-11-10
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