MOG (Modular Offshore Grid)

Offshore GridOperationalBE1,050 MW220 kV123.33 km

Basic Information

Also known as:Modular Offshore Grid, Elia Modular Offshore Grid, MOG 1, Belgian Modular Offshore Grid, Offshore SwitchYard (OSY) platform, OSY, MOG plug, Modular Offshore Grid plug

Status:Operational

Capacity:1,050 MW

Transmission Model:TSO Build & Own

Owners:

Elia Transmission Belgium (Elia)(100%)

Project Company:

Elia Transmission Belgium (ETB)

Type:offshore grid

Website:www.elia.be

Description:

The Modular Offshore Grid (MOG) is a meshed HVAC offshore switchyard and export system developed and owned/operated by Elia Transmission Belgium to aggregate and export generation from multiple Belgian offshore wind farms. The platform (often referred to as the Offshore Switchyard, OSY) sits roughly 40 km off the Belgian coast...

Supply Chain (0)

Project Timeline (0)

No lifecycle events recorded yet.

	North Sea	West Flanders
Landfall	N/A	Zeebrugge, West Flanders, Belgium
Grid Connection	—	Stevin substation (Zeebrugge) — Stevin 380 kV substation

Financial

€400M€506.1M adj.€3.91k/MW-km

www.windpowermonthly.com (Apr 2017)

CAPEX:€400M

Adjusted to 2025¹:€506.1M

Cost Intensity¹:€3.91k per MW-km

Estimate Date:Apr 2017

Source:www.windpowermonthly.com

Notes:

Estimated total investment for Elia's Modular Offshore Grid (MOG) reported in 2017; likely covers the offshore platform and export cable works. Figure reported as an estimate (€400 million).

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

Cable Specifications

MOG export cable 1 (OSY – Stevin)

Zeebrugge, West Flanders, Belgium

1 × 220 kV HVAC · 280 mm dia. · 43.33 km

System:1 × 220 kV HVAC

Construction:280 mm dia.

Route length:43.33 km(43.33 subsea)

Burial depth:

Elia states that for safety reasons the subsea cables associated with the MOG are buried where possible at depths of about 1 to 3 m. Burial depth is noted as...

MOG export cable 2 (OSY – Stevin)

Zeebrugge, West Flanders, Belgium

1 × 220 kV HVAC · 280 mm dia. · 40 km

System:1 × 220 kV HVAC

Construction:280 mm dia.

Route length:40 km(40 subsea)

Burial depth:

Elia states that for safety reasons the subsea cables associated with the MOG are buried where possible at depths of about 1 to 3 m. Burial depth is noted as...

MOG export cable 3 (OSY – Stevin)

Zeebrugge, West Flanders, Belgium

1 × 220 kV HVAC · 280 mm dia. · 40 km

System:1 × 220 kV HVAC

Construction:280 mm dia.

Route length:40 km(40 subsea)

Burial depth:

Elia states that for safety reasons the subsea cables associated with the MOG are buried where possible at depths of about 1 to 3 m. Burial depth is noted as...

Rentel – MOG (OSY) inter-platform cable

220 kV HVAC · 280 mm dia.

System:220 kV HVAC

Construction:280 mm dia.

Burial depth:

Elia documentation and project reporting state that the MOG subsea cables are buried for safety, with burial depths typically in the 1–3 m range. IMDC acted as marine consultant and...

Northwester 2 – MOG (OSY) inter-platform cable

220 kV HVAC · 280 mm dia.

System:220 kV HVAC

Construction:280 mm dia.

Route length:0 km land

Burial depth:

Elia documentation and project reporting state that the MOG subsea cables are buried for safety, with burial depths typically in the 1–3 m range. IMDC acted as marine consultant and...

Seastar (SeaMade) – MOG (OSY) inter-platform cable

220 kV HVAC · 280 mm dia.

System:220 kV HVAC

Construction:280 mm dia.

Burial depth:

Elia documentation and project reporting state that the MOG subsea cables are buried for safety, with burial depths typically in the 1–3 m range. IMDC acted as marine consultant and...

Mermaid (SeaMade) – MOG (OSY) inter-platform cable

220 kV HVAC · 280 mm dia.

System:220 kV HVAC

Construction:280 mm dia.

Burial depth:

Elia documentation and project reporting state that the MOG subsea cables are buried for safety, with burial depths typically in the 1–3 m range. IMDC acted as marine consultant and...

MOG (Modular Offshore Grid)

System Topology