Ormonde OFTO

Offshore GridOperationalGB150 MW132 kV44.3 km

Basic Information

Also known as:TC Ormonde OFTO Ltd, TC Ormonde OFTO Limited, Ormonde offshore transmission assets, Ormonde transmission link, Ormonde OFTO TR1

Status:Operational

Capacity:150 MW

Transmission Model:Developer Build & Transfer

Owners:

International Public Partnerships (INPP)(100%)

Project Company:

TC Ormonde OFTO Limited

Type:offshore grid

Expected Life:20 years

Website:transmissioncapital.com

Description:

Ormonde OFTO is the licensed offshore transmission owner (OFTO) connection that links the 150 MW Ormonde offshore wind farm (30 × 5 MW turbines) in the Irish Sea to the UK onshore 132 kV network at Heysham. The transmission system is an HVAC export arrangement comprising a single offshore substation...

Supply Chain (0)

Project Timeline (0)

No lifecycle events recorded yet.

Route

	Irish Sea	Lancashire
Landfall	N/A	Half Moon Bay, Heysham, Lancashire, United Kingdom
Grid Connection	—	Heysham substation (132 kV)

Irish Sea

Landfall:N/A

Grid:—

Lancashire

Landfall:Half Moon Bay, Heysham, Lancashire, United Kingdom

Grid:Heysham substation (132 kV)

Financial

£103.883M€169.9M adj.€25.57k/MW-km

www.ofgem.gov.uk (Jul 2012)

CAPEX:£103.883M

Adjusted to 2025¹:€169.9M

Cost Intensity¹:€25.57k per MW-km

Estimate Date:Jul 2012

Source:www.ofgem.gov.uk

Notes:

Assessed transfer value / OFTO transfer value for the Ormonde transmission assets (transfer to TC Ormonde OFTO Ltd). Includes offshore substation and export/onshore cables as assessed by Ofgem.

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

Cable Specifications

Ormonde 132 kV export cable

Half Moon Bay, Heysham, Lancashire, United Kingdom

1 × 132 kV HVAC · 150 MVA · 44.3 km

System:1 × 132 kV HVAC

Power rating:150 MVA

Route length:44.3 km(41 subsea · 3 land)

Burial depth:

At the landfall (Half Moon Bay, Heysham) the export cable is carried under the intertidal zone in a deep duct installed using horizontal directional drilling (HDD). The preferred export cable...

Fibre optic:

The export cable includes an integrated fibre‑optic core within the cable construction. Developer documentation describes the cable as containing three power cores and one fibre‑optic core (the fibre core described...

Collector Stations

Ormonde offshore substation

Ormonde Offshore Wind Farm (Irish Sea, ~10 km west of Walney Island), United Kingdom

150 MW 132 kV · offshore

Rating:150 MW · 132 kV

Location:offshore

Heysham substation

Heysham, Lancashire, England, United Kingdom

150 MW 132 kV · onshore

Rating:150 MW · 132 kV

Location:onshore