Baltic 2

Offshore GridOperationalDE288 MW150 kV147 km

Basic Information

Also known as:Baltic 2 grid connection, EnBW Baltic 2 grid connection, Baltic II grid connection

Status:Operational

Capacity:288 MW

Transmission Model:TSO Build & Own

Owners:

50Hertz Transmission GmbH(100%)

Project Company:

50Hertz Transmission GmbH

Type:offshore grid

Website:www.50hertz.com

Description:

The Baltic 2 grid connection is the 150 kV HVAC export system that transmits power from EnBW’s 288 MW Baltic 2 offshore wind farm (80 × 3.6 MW) to the German onshore transmission network. Electricity from the farm is collected at the Baltic 2 offshore substation (an AC transformer platform)...

Supply Chain (0)

Project Timeline (0)

No lifecycle events recorded yet.

	Baltic Sea	Mecklenburg-Western Pomerania
Landfall	N/A	Barhöft, Mecklenburg-Vorpommern, Germany
Grid Connection	—	Bentwisch substation

Financial

€195M€252.2M adj.€5.96k/MW-km

www.offshorewind.biz (Oct 2010)

CAPEX:€195M

Adjusted to 2025¹:€252.2M

Cost Intensity¹:€5.96k per MW-km

Estimate Date:Oct 2010

Source:www.offshorewind.biz

Notes:

Contract award value (turnkey) to General Cable / Norddeutsche Seekabelwerke for design, supply and installation of ~120 km submarine 150 kV export cables and 3 single-core 12 km onshore cables...

¹ Cost inflated in local currency then converted to euros (where applicable).

Cable Specifications

EnBW Baltic 1 → Bentwisch export cable

Barhöft, Mecklenburg-Vorpommern, Germany

2 × 150 kV HVAC · copper 129.5 mm dia. · XLPE (Cross-linked Polyethylene) · 288 MVA · 136 km

System:2 × 150 kV HVAC

Construction:copper · 129.5 mm dia.

Insulation:XLPE (Cross-linked Polyethylene)

Power rating:288 MVA

Route length:136 km(120 subsea · 16 land)

Burial depth:

Official EnBW and 50Hertz project pages do not specify a single nominal burial depth for the Baltic 2 150 kV export cable. Project and industry sources indicate the export cable...

Fibre optic:

The Baltic 2 export and park submarine cables include integrated optical fibres used for control, monitoring and data communications. EnBW states the park and export submarine cables (internal park cables...

EnBW Baltic 2 ↔ EnBW Baltic 1 inter‑platform link

2 × 150 kV HVAC · copper 129.5 mm dia. · XLPE (Cross-linked Polyethylene) · 288 MVA · 11 km

System:2 × 150 kV HVAC

Construction:copper · 129.5 mm dia.

Insulation:XLPE (Cross-linked Polyethylene)

Power rating:288 MVA

Route length:11 km(11 subsea)

Burial depth:

EnBW describes the park-internal/ inter‑platform cables for Baltic 2 as being trenched into the seabed (’Trenchen’ / internal park cabling). Industry/project documentation for Baltic 2 and comparable German offshore projects...

Fibre optic:

EnBW states the wind‑farm internal cables (including the short inter‑platform/inter‑array cables) include highly sensitive optical fibres integrated into the cable construction to carry information and data between turbines and the...

Kriegers Flak CGS interconnector (EnBW Baltic 2 ↔ Kriegers Flak OSS)

2 × 150 kV HVAC · copper 129.5 mm dia. · 288 MVA

System:2 × 150 kV HVAC

Construction:copper · 129.5 mm dia.

Power rating:288 MVA

Burial depth:

Internal park and inter‑platform cables at Baltic 2 are laid into trenches on the seabed and then back‑filled or trenched to achieve mechanical protection; EnBW describes the park cabling as...

Fibre optic:

The inter‑platform and internal park power cables deployed for Baltic 2 include integrated optical fibre(s) for operational control, protection signalling and data/telemetry between turbines, the offshore substation(s) and the onshore...