Lillgrund Export

Offshore GridOperationalSE110 MW145 kV8.7 km

Basic Information

Also known as:Lillgrund export cable, Lillgrund offshore wind farm export cable, Lillgrund grid connection

Status:Operational

Capacity:110 MW

Transmission Model:Developer Full

Owners:

Vattenfall AB(100%)

Type:offshore grid

Website:www.vattenfall.se

Description:

Lillgrund Export is the high‑voltage AC export connection that transmits power from the Lillgrund offshore wind farm (48 × 2.3 MW, ≈110 MW) to the Swedish onshore grid at Bunkeflo near Malmö. The system was designed as an HVAC transmission link: a submarine export cable section (≈7 km) paired with...

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Project Timeline (0)

No lifecycle events recorded yet.

System Topology

Export

React Flow

Route

	Öresund (Öresund Sea)	Skåne County
Landfall	N/A	Bunkeflo, Malmö, Sweden
Grid Connection	—	Bunkeflo substation

Öresund (Öresund Sea)

Landfall:N/A

Grid:—

Skåne County

Landfall:Bunkeflo, Malmö, Sweden

Grid:Bunkeflo substation

Cable Specifications

W1 — Bunkeflo Export Cable System

Bunkeflo, Malmö, Sweden

1 × 145 kV HVAC · copper 400 mm² 166 mm dia. · PPL (Polypropylene Laminate) · 110 MVA · 8.7 km · 56 kg/m

System:1 × 145 kV HVAC

Construction:copper · 400 mm² · 166 mm dia.

Insulation:PPL (Polypropylene Laminate)

Power rating:110 MVA

Route length:8.7 km(7 subsea · 1.7 land)

Weight:56 kg/m air

Burial depth:

Trenches for the export cable were excavated in advance and the specification required the trench to achieve approximately 1.0 m burial below the seabed. Offshore trenching (water depths >1 m)...

Fibre optic:

The offshore export cable contains an integrated optical cable. Project documentation identifies the fibre element as a GASLMLV fibre‑optic cable with 48 fibres included inside the offshore/submarine cable for communications...

Collector Stations

Transformer platform W1

Lillgrund Offshore Wind Farm (Transformer platform W1), Öresund, Sweden

110 MW 145 kV · offshore

Rating:110 MW · 145 kV

Location:offshore

Bunkeflo substation

Bunkeflo (Bunkeflo substation), Sweden

110 MW 145 kV · onshore

Rating:110 MW · 145 kV

Location:onshore