East Anglia ONE Offshore Wind Farm

United Kingdom
Fully Commissioned
714 MW Capacity
21 Jan 2025: OFGEM has approved TC East Anglia One OFTO Limited's claim for an exceptional event, stating that the reduction in transmission capacity between 28 February 2024 to 11 April 2024 (totalling 322,573 MWh) was an exceptional event. OFGEM has made an adjustment of 322,573 MWh to offset the downtime. The unplanned outage running from 28 February to 11 April 2024 occurred due to a failure of blue phase of the 220 kV onshore cable of Export Circuit 1 specifically a conductor connector in Joint Bay 10/11, which failed (the Failure Event). The Licensee considers that the root cause of the Failure Event was due to defective weld in the conductor connector within the blue phase joint at Joint Bay 10/11 of Export Circuit 1, this resulted in overheating later during normal operation of the conductor connector in the joint (the Trigger Event). The Licensee submitted GHD, RINA and Prysmian reports all support the Licensee's conclusion.
4C Offshore | Location Map: Lat(52.233) Lon(2.499)
General Information
Name
East Anglia ONE
Other Names
East Anglia Array, Zone 5, Norfolk, EA ONE
Country
United Kingdom
Development Status
Fully Commissioned
Category or Round
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Region
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Comments
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Website
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Developers/Owners/Operators

Developer

East Anglia One Limited

East Anglia One Limited

Operator

East Anglia One Limited

East Anglia One Limited

Owner

ScottishPower Renewables

ScottishPower Renewables

Owner

The Renewables Infrastructure Group Limited (TRIG)

The Renewables Infrastructure Group Limited (TRIG)

Owner

InfraRed Capital Partners Limited

InfraRed Capital Partners Limited

Owner

L&G NTR Clean Power Fund

L&G NTR Clean Power Fund

Owner

Green Investment Group (GIG)

Green Investment Group (GIG)

Owner-Offshore Transmission

Transmission Capital Partners

Transmission Capital Partners

Key Dates
Costs
Stated Project Cost
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Revenue Mechanism
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Revenue Details
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Revenue
GBP 119.89/MWh (EUR 139.24/MWh)

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Power & Turbines
Location & Environment
Sea Name
North Sea
Latitude
52.232703°
Longitude
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Area
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Depth Range (Chart Datum)
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Depth Range (Stated by Developer)
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Distance from Shore (Developer)
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Distance from Shore (Computed)
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Ports
Grid
Number of Offshore Platform(s)
1
Shared Platform Type
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Grid Connection Point
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Cable Landing Point
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Export Cables (AC & DC)
Number of Export Cables (AC)
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Average Length per Cable (AC)
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Additional Requirements (AC)
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Nominal Voltage (AC)
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Number of Export Cables (DC)
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Average Length per Cable (DC)
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Additional Requirements (DC)
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Nominal Voltage (DC)
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Array Cables
Onshore Cables

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