Sheringham Shoal OFTO

Offshore GridOperationalGB317 MW145 kV87.2 km

Basic Information

Also known as:Sheringham Shoal Offshore Transmission Owner, Sheringham Shoal Offshore Transmission Assets, Sheringham Shoal OFTO Limited, TR1 Sheringham Shoal OFTO

Status:Operational

Capacity:317 MW

Transmission Model:Developer Build & Transfer

Owners:

DTUK BLK Bidco Holdings Limited (ultimate controller BlackRock)(50%)

Alba Infra Founding Partners SAS(50%)

Project Company:

Blue Transmission Sheringham Shoal Limited

Type:offshore grid

Expected Life:20 years

Website:www.bluetransmission.com

Description:

The Sheringham Shoal OFTO (Sheringham Shoal Transmission Assets) is the dedicated offshore AC transmission link that connects the Sheringham Shoal Offshore Wind Farm to the GB onshore network. The transmission system was delivered under Ofgem’s Transitional Tender Round 1 using a developer-build-transfer model: Scira (the developer/operator of the wind farm)...

Supply Chain (0)

Project Timeline (0)

No lifecycle events recorded yet.

Route

	Greater Wash	Norfolk
Landfall	N/A	Weybourne Hope, Norfolk, United Kingdom
Grid Connection	—	Salle 132 kV substation

Greater Wash

Landfall:N/A

Grid:—

Norfolk

Landfall:Weybourne Hope, Norfolk, United Kingdom

Grid:Salle 132 kV substation

Financial

£193.1M€308M adj.€11.14k/MW-km

www.ofgem.gov.uk (Jun 2013)

CAPEX:£193.1M

Adjusted to 2025¹:€308M

Cost Intensity¹:€11.14k per MW-km

Estimate Date:Jun 2013

Source:www.ofgem.gov.uk

Notes:

OFTO transfer / transaction value reported at financial close for Sheringham Shoal OFTO (transitional tender round 1).

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

Cable Specifications

Export Cable System 1 (Off Shore Substation No.1 – Salle)

Weybourne Hope, Norfolk, United Kingdom

1 × 145 kV HVAC · 630 mm² · 176 MVA · 43.6 km

System:1 × 145 kV HVAC

Construction:630 mm²

Power rating:176 MVA

Route length:43.6 km(22 subsea · 21.6 land)

Burial depth:

Nominal cable burial depth is 1 m (target/typical burial). Sources describe the export cables as trenched and buried to approximately 1 m depth; no detailed range or special non-burial protection...

Fibre optic:

Each export cable includes one fibre-optic element (one fibre optic element included with each cable) as part of the cable construction. Sources state the fibre element is provided with the...

Export Cable System 2 (Second offshore substation – Salle)

Weybourne Hope, Norfolk, United Kingdom

1 × 145 kV HVAC · 630 mm² · 176 MVA · 43.6 km

System:1 × 145 kV HVAC

Construction:630 mm²

Power rating:176 MVA

Route length:43.6 km(22 subsea · 21.6 land)

Burial depth:

Nominal burial depth reported as 1 m. Source documents state a 1 m cable burial target for the export cable route; no detailed range or site-specific variations provided in the...

Fibre optic:

Each export cable includes one fibre-optic element (one fibre optic element included with each cable) for communications/control purposes; no detailed count of fibre pairs/cores or commercial leasing arrangements is provided...

Collector Stations

Off Shore Substation No.1

Sheringham Shoal, Greater Wash, United Kingdom

315 MW 132 kV · offshore

Rating:315 MW · 132 kV

Location:offshore

Salle substation (Salle 132 kV substation)

Salle, Norfolk, United Kingdom

315 MW 132 kV · onshore

Rating:315 MW · 132 kV

Location:onshore