丹麥氣候、能源和供應(yīng)部已批準(zhǔn)Energinet公司的申請，即更換一條穿過連接丹麥和瑞典的天然氣管道的海底電纜。

獲批后，Energinet現(xiàn)在可以開始該項(xiàng)目，以取代在通過Öresund的400 kV電纜連接上的2號(hào)系統(tǒng)，因?yàn)槟壳暗碾娎|已有37年的歷史，并且“狀況不佳”。

該電纜是名為“Öresund連接”項(xiàng)目的一部分，該項(xiàng)目包括連接丹麥新西蘭和瑞典南部的兩個(gè)132千伏和兩個(gè)400千伏連接。

400 kV系統(tǒng)1由Svenska Kraftnät所有，并于2020年更新，而400 kV系統(tǒng)2由Energinet所有。這種電纜的預(yù)期壽命為40年。

據(jù)悉，該項(xiàng)目對丹麥東部電力系統(tǒng)的功能和運(yùn)營至關(guān)重要，并確保新西蘭能夠與北歐地區(qū)的其他地區(qū)同步運(yùn)行。

System 2海纜最近一次損壞是在2019年，正如Energinet報(bào)告的那樣，故障降低了連接的容量，并意味著社會(huì)經(jīng)濟(jì)損失。

整個(gè)更換項(xiàng)目的總預(yù)算為4.86億丹麥克朗(6520萬歐元)。

Energinet項(xiàng)目經(jīng)理Per Obbekær表示：“我們正在將系統(tǒng)1的更換經(jīng)驗(yàn)轉(zhuǎn)化為系統(tǒng)2的更換，因?yàn)檫€有許多相同的挑戰(zhàn)。”。

“這些挑戰(zhàn)尤其與海床的組成以及這一地區(qū)的海峽交通繁忙有關(guān)。我們很高興第4條現(xiàn)在已經(jīng)到位，這樣我們就可以開始這一極其重要的電纜連接了。”

在丹麥，三條新電纜將首先埋在陸地上，長度約為1公里，位于Skibsrupgård的變電站和海岸之間。瑞典方面也將進(jìn)行同樣的工作，陸地上的電纜將連接到Kristinlund的變電站。

然后，三條新的海底電纜將鋪設(shè)在圣雷海峽上，與目前的路線大致相同，之后將連接陸地和海底電纜。一旦新的連接開始工作，舊的電纜就會(huì)被拆除。

Energinet于2022年夏天開始進(jìn)行可行性研究。瑞典預(yù)計(jì)將于2025年1月獲得批準(zhǔn)，隨后Svenska Kraftnät于2025年4月做出投資決定，以便在2025年7月開始施工。

如果一切按計(jì)劃進(jìn)行，新的連接可以在2026年11月投入使用，該項(xiàng)目預(yù)計(jì)將在2027年6月完成。

The Danish Ministry of Climate, Energy and Supply has approved Energinet’s application for the replacement of a submarine cable that passes across Øresund connecting Denmark and Sweden.

With the approval in place, Energinet can now begin the project to replace System 2 on the 400 kV cable connection across Øresund as the current cable is 37 years old and “in poor condition”.

The cable is part of the project named the Øresund connection which includes a total of two 132 kV and two 400 kV connections that link Denmark’s Zealand to southern Sweden.

System 1 of 400 kV is owned by Svenska Kraftnät and was renewed in 2020, while System 2 of 400 kV is owned by Energinet. The expected lifetime of this type of cable is 40 years.

The project is said to be absolutely central to the function and operation of the Eastern Danish electricity system in particular and ensures that Zealand can be run synchronously with the rest of the Nordic region.

The System 2 connection was most recently damaged in 2019, and, as Energinet reports, a breakdown reduces the capacity of the connection and implies socio-economic loss.

The entire replacement project has a total budget of DKK 486 million (€65.2 million).

“We are taking our experience with the replacement of System 1 to the replacement of System 2, because there are many of the same challenges,” said Per Obbekær , Project Manager at Energinet.

“The challenges are particularly linked to the composition of the seabed and the fact that the strait on this part of Øresund is heavily trafficked. We are pleased that clause 4 is now in place, so that we can get started on this extremely important cable connection.”

In Denmark, three new cables will first be buried onshore over a stretch of approximately 1 kilometer between the transformer station in Skibstrupgård and the coast. The same will be done on the Swedish side, where the cables on land will be connected to the transformer station in Kristinelund.

Three new submarine cables will then be laid across the Øresund, roughly the same as the current route, after which the land and submarine cables will be connected. Once the new connection goes into operation, the old cables will be removed.

Energinet started the feasibility studies in the summer of 2022. A Swedish approval is expected in January 2025, followed by an investment decision by Svenska Kraftnät in April 2025, so that construction work can start in July 2025.

If everything goes according to schedule, the new connection can be commissioned in November 2026 and the project is expected to be completed in June 2027.