KBH05 is a domestic Danish cable project that appears in Energinet procurement and planning documents as a shore-to-shore / nearshore submarine and onshore cable link serving the Copenhagen/Zealand area. Tender materials and procurement listings identify the scope as delivering submarine cable sy...
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Energinet’s 7 July 2025 press release "Arbejdet med at lægge søkabel ud mellem Hellerup og Amager går i gang i juli" explains that, as part of the new 132 kV connection from Amagerværket to Nordhavn and on to Glentegård (KBH05), the subsea cable will be laid in a trench on the seabed "der allerede er blevet gjort klar tidligere på året" (which has already been prepared earlier in the year). This statement confirms that offshore site preparation works (trenching and related seabed preparation for the KBH05 submarine cable routes) were completed sometime earlier in 2025, before cable installation. No later sources suggest that the prepared trench was not used. I therefore confirm offshore site preparation as having occurred in 2025, with year-level precision.
Energinet’s official project page "Nyt 132 kV elkabel på tværs af Gentofte Kommune til Nordhavn og Amagerværket" (KBH05, Glentegård–Nordhavn–Amagerværket) states that work to establish the new 132 kV cable connection began at the start of 2025: "I starten af 2025 begyndte arbejdet med at etablere en ny 132 kV kabelforbindelse fra Glentegård Højspændingsstation til kysten ved Hellerup og videre til Nordhavn og Amagerværket." This corresponds to the start of onshore construction for the KBH05 land cable systems. The same page’s TIDSPLAN shows preparatory works on Strandvejen from 10 February 2025 and the start of cable work in Hellerup on 17 February 2025. No later sources indicate a postponement of the onshore start, so I confirm onshore construction start in 2025, with year-level precision.
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KBH05, KBH05 – 145 kV Submarine Cable Systems, 132 kV kabelanlæg KBH05, Glentegård – Oceankaj, HK13040, HK13041, HK13041 OCE-AMV
In the same 7 July 2025 Energinet press release on the KBH05 subsea cable installation, the company states that the work to install the cable between Amagerværket, Nordhavn and Hellerup is expected to be completed over July and August 2025 ("Energinet forventer at kunne færdiggøre arbejdet i løbet af juli og august måned"). The seabed trench had already been prepared earlier in 2025, and the campaign is described as a focused marine operation. There is no subsequent public information indicating major delays or an additional installation season. It is therefore reasonable to treat completion of subsea cable installation for the two 132 kV KBH05 cable systems as occurring by August 2025. I record completion in August 2025 with month-level precision, acknowledging that the exact day is not specified.
Energinet’s 7 July 2025 press release "Arbejdet med at lægge søkabel ud mellem Hellerup og Amager går i gang i juli" announces that the company is about to start installing the KBH05 subsea cable between Amagerværket, Nordhavn and Hellerup, and that this work "går i gang i juli" (starts in July). The release is dated 7 July 2025 and provides detailed operational information and safety instructions for other sea users, indicating that the start of submarine cable installation is imminent and scheduled for the same month. There is no later public information indicating that this marine installation campaign was postponed. Given this, I treat the start of cable installation for KBH05’s subsea cables as occurring in July 2025 and record it with month-level precision.
A 31 March 2025 ruling by the Danish Complaints Board for Public Procurement (Klagenævnet for Udbud, case JD-Contractor A/S vs Energinet Eltransmission A/S) reproduces Energinet’s November 2023 tender for "protection of submarine cables under the project KBH05". The tender scope explicitly includes "investigation of potential unexploded ordnances (referred to as UXOs) and objects of potential archaeological interest in and close to the cable routes." The same document states that the protection works are scheduled for execution in Q4 2024 and in 2025. A later Energinet press release (7 July 2025) notes that the seabed trench for the KBH05 subsea cables had already been prepared earlier in 2025, which presupposes that UXO investigations have been carried out beforehand. Together this indicates that UXO survey activities started broadly as scheduled in Q4 2024. As no exact start date is published, I use quarter-level precision (Q4 2024, represented by 2024-10-01).
Under the KBH05 submarine cable protection contract near Copenhagen, J.A. Rederiet will also investigate objects of potential archaeological interest in and close to the approximately 11.5 km of cable routes in shallow waters down to around 20 m. These archaeological survey activities are part of the same two‑year protection scope scheduled to be carried out from Q4 2024 through 2025 following Energinet Eltransmission A/S’s contract award in mid‑2024.
On 7 November 2023, Energinet Eltransmission A/S issued a contract award notice via Mercell for the procurement of a cable route survey covering both the “Lolland-South Zealand Phase 3+4, Storstrømmen crossing” and project KBH05 under SQS 239894, marking the award of a survey contract for KBH05.
Following the KBH05 submarine cable systems tender, Energinet Eltransmission A/S awarded the supply contract for approximately 12 km of 145 kV submarine cable system connecting AMV, GLN and the new Oceankaj (OCE) substation to Zhongtian Technology Submarine Cable Co., Ltd, with the contract award notice dispatched on 20 September 2023.
Energinet Eltransmission A/S issued a formal tender (RFT 22/07884) on 4 January 2023 for the KBH05 project to procure the complete functional supply of approximately 12 km of 145 kV submarine cable system, including design, fabrication, factory testing, transport to a harbour in Zealand, installation of transition joints and hang-offs, and completion and commissioning of a new 145 kV link between Amager Power Plant (AMV), Glentegård (GLN) substation and the new Oceankaj (OCE) substation in Copenhagen.
Styrelsen for Grøn Arealomlægning og Vandmiljø (SGAV) issued a screening decision under §21 of the Environmental Assessment Act for the project to establish two 132 kV cable installations (HK13040 GLN-OCE and HK13041 OCE-AMV) and the 132 kV Oceankaj high-voltage substation between Gladsaxe, Gentofte and Copenhagen municipalities, including land and subsea sections at Nordhavn. SGAV concluded that the project will not significantly affect the environment and is therefore not subject to an environmental impact assessment requirement, allowing it to proceed without a full EIA.
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