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The 50HERTZ TRANSMISSION GMBH has issued a Tender notice for the procurement of a Framework Contracts for Ecological Construction Support (Öbb) for Dc Underground Cable Projects in the Germany. This Tender notice was published on 25 Feb 2026 and is scheduled to close on 31 Mar 2026, with an estimated Tender value of EUR 9250000. Interested bidders can access detailed Tender information, eligibility criteria, and complete bidding documents by referencing TOT Ref No. 136538233, while the tender notice number is 131111-2026 and Registering on the platform.
Procurement Summary
Country: Germany
Summary: Framework Contracts for Ecological Construction Support (Öbb) for Dc Underground Cable Projects
Deadline: 31 Mar 2026
Posting Date: 25 Feb 2026
Other Information
Notice Type: Tender
TOT Ref.No.: 136538233
Document Ref. No.: 131111-2026
Financier: Self Financed
Purchaser Ownership: Public
Tender Value: EUR 9250000
Purchaser's Detail
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Login to see detailsTender Details
According to the approval notice, it is necessary for the 50Hertz construction projects to have ecological construction supervision (ÖBB) in place throughout the entire construction period in order to comply with tree, species and biotope protection requirements as well as the restrictions in protected areas during the construction period Construction must be taken into account by ensuring the professional implementation of the avoidance, reduction and protection or advanced species protection measures (measures to permanently secure the ecological function) specified in the approved documents (continuous ecological functionality CEF) or mitigation measures (MiMa) is monitored on site. /// As part of this tender for ecological construction supervision, the services will be awarded in three lots. /// Lot 1 - Baltic Sea grid connections /// Lot 2 - Grid connections North Sea /// Lot 3 - DC projects (e.g. NordOstLink, SuedOstLink+, SuedWestLink, etc.) Lot 1 - "Baltic Sea grid connections" includes the land connection lines of the Ostwind 4 and Bornholm Energy Island offshore projects. The The service description only applies to the underground cable area that runs on land. /// The Ostwind 4 project connects an offshore wind area northeast of the island of Rügen with the German mainland. The connection is approximately 110 kilometers long Submarine cable route, which runs as an underground cable through the Baltic Sea and is brought ashore at the port of Vierow. From there, the underground cable runs around four kilometers to the planned Stilow substation and converter plant in...
Document Type: Contract Notice Contract Type: services Estimated Value: 9250000 - EUR Doc Title: Framework contracts for ECOLOGICAL construction support (ÖBB) for DC underground cable projects Dispatch Date: 2026-02-24 Publish Date: 2026-02-25 Submission Date: 2026-03-31
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