Rampion OFTO

Offshore GridOperationalGB400 MW150 kV44 km

Basic Information

Also known as:Rampion Offshore Transmission Owner, TC Rampion OFTO Limited, Rampion OFTO TR5, TR5 Rampion OFTO

Status:Operational

Capacity:400 MW

Transmission Model:Developer Build & Transfer

Owners:

International Public Partnerships(100%)

Project Company:

TC Rampion OFTO Limited

Type:offshore grid

Expected Life:20 years

Website:tinv.com

Description:

Rampion OFTO is the offshore transmission link that connects the 400 MW Rampion Offshore Wind Farm (116 turbines) to Great Britain’s onshore transmission network. The system is an HVAC export connection that collects power at a single offshore substation platform (OSP) mounted on a jacket foundation, steps it up to...

Supply Chain (0)

Project Timeline (0)

No lifecycle events recorded yet.

Route

	English Channel (southern English territorial waters)	West Sussex
Landfall	N/A	Lancing, West Sussex, United Kingdom
Grid Connection	—	Bolney 400 kV substation

English Channel (southern English territorial waters)

Landfall:N/A

Grid:—

West Sussex

Landfall:Lancing, West Sussex, United Kingdom

Grid:Bolney 400 kV substation

Financial

£279.5M€402.7M adj.€22.88k/MW-km

www.ofgem.gov.uk (Nov 2021)

CAPEX:£279.5M

Adjusted to 2025¹:€402.7M

Cost Intensity¹:€22.88k per MW-km

Estimate Date:Nov 2021

Source:www.ofgem.gov.uk

Notes:

OFTO asset transfer value (transfer of Rampion transmission assets to TC Rampion OFTO Limited on 17 Nov 2021). Covers offshore substation, two 150 kV export circuits and onshore export/substation works.

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

Cable Specifications

Rampion export cable system (Rampion OSP ↔ Twineham)

Lancing, West Sussex, United Kingdom

1 × 150 kV HVAC · 44 km

System:1 × 150 kV HVAC

Route length:44 km(17 subsea · 27 land)

Burial depth:

Export cables were specified to be installed using standard subsea cable methods and burial practices: ploughing, jetting or trenching where feasible, with 'directly laid' (surface-laid) techniques considered in deeper or...

Fibre optic:

Regulatory documentation states fibre optic cables are installed alongside or within the onshore and offshore export cables to provide generation control, monitoring and communications services. The documents note the fibre...

Collector Stations

Rampion Offshore Substation Platform (OSP)

Rampion Offshore Wind Farm (offshore substation platform), United Kingdom

400 MW 150 kV · offshore

Rating:400 MW · 150 kV

Location:offshore

Twineham onshore substation

Twineham, West Sussex, United Kingdom

400 MW 400 kV · onshore

Rating:400 MW · 400 kV

Location:onshore