SydVästlänken
| SydVästlänken South–West Link | |
|---|---|
| Location | |
| Country | Sweden, Norway |
| Province | Närke, Skåne, Västergötland, Östergötland, Småland |
| General direction | north–south, west–south |
| From | Hallsberg in Närke; Oslo |
| Passes through | Barkeryd, Nässjö 57°44′52″N 14°39′19″E / 57.74778°N 14.65528°E |
| To | Hurva, Hörby 55°49′59″N 13°36′08″E / 55.83306°N 13.60222°E |
| Ownership information | |
| Operator | Svenska Kraftnät, Statnett |
| Construction information | |
| Expected | 2013/2015 |
| Technical information | |
| Type | overhead line; subsoil cable |
| Type of current | combined HVDC and HVAC |
| Power rating | 1,200 MW |
| AC Voltage | 400 kV |
| DC Voltage | 300 kV |
SydVästlänken (English: South–West Link) is a project for reinforcement of power grids in Southern Sweden and Oslo area in Norway. The project to be implemented by Swedish and Norwegian national grids operators Svenska Kraftnät and Statnett.
Aim
The southern part of the Nordic power grid between Sweden and Norway is relatively vulnerable for disruptions and quite often there are bottlenecks for power transmission. While in dry periods and low consumption periods problems are related to the West coast in Sweden, in periods with high hydroproduction and peak consumption problems are mainly related to the grid in Oslo area in Norway (the so-called Hasle-trappen).
Western branch will not be built 2013-04-29
Swedish power grid, together with Statnett decided not to implement the project south-western branch of the link between backbone stations Barkeryd and Tveiten. New calculations show that the benefits have been reduced significantly compared with the original analyzes.
[1] The aim of SydVästlänken is to increase the transmission capacity and the robustness of the transmission system in this area. Increased capacity and flexibility of the transmission is particularly import for facilitation of the increased wind power generation.[2]
History
The project was proposed in 2005 when Svenska Kraftnät made decision to construct the Sydlänken (Southern Link), a reinforcement of the transmission grid between the Swedish provinces Närke and Skåne.[2] In January 2008, Svenska Kraftnät and Statnett proposed to expand this project by integrating it with a new VSC HVDC connection between Norway and Sweden.[1] Correspondingly, the project was renamed SydVästlänken.
Description
The SydVästlänken will include sections:
- 260 kilometres long HVDC line from the Barkeryd substation (57°44′52″N 14°39′19″E / 57.74778°N 14.65528°E) near Nässjö in Jönköping area to the Hurva substation (55°49′59″N 13°36′08″E / 55.83306°N 13.60222°E) near Hörby in Skåne. The line will be built in its first 10 kilometres long section from Barkeryd substation to Nässjö as 10 kilometres long underground line. Between Nässjö ( terminal at: 57°39′50.2″N 14°40′8.7″E / 57.663944°N 14.669083°E) and Värnamo ( terminal at: 57°13′46.2″N 14°4′51.8″E / 57.229500°N 14.081056°E) it will be constructed as 63 kilometres long overhead line using two 910 mm² Al59 conductors per pole, fixed with 4 metres long insulators on the pylons. From Värnamo to Hurva substation the line will be implemented again as underground cable.|* HVDC underground cable from Oslo area to the Barkeryd substation.
- a new 400 kV HVAC power line replacing an existing 220 kV line between Hallsberg in Närke and Nässjö.[2][3][4]
The Barkeryd–Hurva and Barkeryd–Hallsberg sections form the southern branch of the project (former Sydlänken). The Barkeryd–Oslo section forms the western branch. Both branches will have capacity of 1,200 MW.[5] Construction of the southern branch to be start in 2012 with completion in 2013. Construction of the western branch to be start in 2013 and it is expected to be completed in 2015.[4]
References
- 1 2 Western branch will not be built 2013-04-29 "Nordic Grid Master Plan 2008" (PDF). Nordel. March 2008: 28. Retrieved 2010-02-27.
- 1 2 3 "Svenska Kraftnät constructs the South-West Link" (Press release). Svenska Kraftnät. 2008-04-23. Retrieved 2010-02-27.
- ↑ "Information om SydVästlänken" [Information about South-West Link] (in Swedish). Svenska Kraftnät. Retrieved 2010-02-27.
- 1 2 "Projektnytt nr 3" [Project news № 3] (PDF) (in Swedish). Svenska Kraftnät. 2009-10-22. Retrieved 2010-02-27.
- ↑ "Swedish interconnectors — Case No 39351. Background explanations submitted by Svenska Kraftnät regarding the offered commitments for this case" (PDF). Svenska Kraftnät. 2009-10-01: 29. Retrieved 2010-02-27.