DolWin5

Offshore GridOperationalDE900 MW320 kV130 km

Basic Information

Also known as:DolWin 5, DolWin5 (Epsilon), DolWin5 offshore grid connection, DolWin5 HVDC link

Status:Operational

Capacity:900 MW

Transmission Model:TSO Build & Own

Owners:

TenneT(100%)

Project Company:

TenneT Offshore GmbH

Type:offshore grid

Expected Life:30 years

Website:www.hitachienergy.com

Description:

DolWin5 is a 900 MW extra‑high‑voltage direct current (HVDC) offshore grid connection that transmits power from offshore wind farms in the German North Sea to the onshore transmission grid. The system uses VSC‑HVDC technology at ±320 kV and connects the DolWin epsilon offshore converter platform to the mainland via a...

Supply Chain (0)

Project Timeline (0)

No lifecycle events recorded yet.

Route

	German North Sea	Lower Saxony
Landfall	N/A	Hamswehrum, East Frisia, Germany
Grid Connection	—	Emden/Ost (Emden East)

German North Sea

Landfall:N/A

Grid:—

Lower Saxony

Landfall:Hamswehrum, East Frisia, Germany

Grid:Emden/Ost (Emden East)

Cable Specifications

DolWin5 export cable (DolWin epsilon – Emden/Ost)

Hamswehrum, East Frisia, Germany

2 × 320 kV HVDC · symmetric monopole · XLPE (Cross-linked Polyethylene) · 900 MVA · 130 km

System:2 × 320 kV HVDC · symmetric monopole

Insulation:XLPE (Cross-linked Polyethylene)

Power rating:900 MVA

Route length:130 km(100 subsea · 30 land)

Burial depth:

Burial depth varies along the DolWin5 route and depends on local water depth, seabed conditions and proximity to shipping lanes and other seabed infrastructure. The subsea route includes deep‑water sections...

Fibre optic:

DolWin5’s cable delivery package includes an associated fibre‑optic cable system as part of the turnkey supply: multiple sources state Prysmian supplied the HVDC 320 kV XLPE subsea and land power...

Converter Stations

DolWin epsilon

DolWin epsilon (offshore converter platform), Germany

VSC · 900 MW 320 kV · offshore

Converter:vsc

Rating:900 MW · 320 kV

Location:offshore

Emden/Ost (Emden East) converter station

Emden/Ost (Emden East), Emden, Lower Saxony, Germany, Germany

VSC · 900 MW 320 kV · onshore

Converter:vsc

Rating:900 MW · 320 kV

Location:onshore