4C Offshore Empowering Intelligence
01 Sep 2023: Onshore cable route construction works set to start in September 2023. This will proceed regardless of Boreas being on hold, as it pertains to the wider Norfolk Zone (i.e. shared infrastructure with Vanguard) This initial phase of construction activity will be on the farthest west 20km section of the cable route (Necton to River Wensum) for the first 12 months of the programme. These works will include mobilisation areas, access creation, fencing, drainage, de-vegetation, ecology mitigation and duct installation (trenched and trenchless). Concurrently, our archaeology programme continues along the whole onshore cable route, as well as targeted ecology mitigation, highway improvements and establishment of the onshore cable route main construction compound. The compound will be located adjacent to the A140 near Aylsham and will remain in use for the duration of the full onshore construction programme. For the remaining 40km stretch of the cable route from the River Wensum to Landfall at Happisburgh, the same onshore construction works detailed above will start in summer 2024 and continue through 2025.
United Kingdom
Consent Authorised
2800 MW
4C Offshore | Location Map: Lat(52.870) Lon(2.700)

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General Information
Norfolk Vanguard
Other Names
East Anglia Array, Norfolk Zone
United Kingdom
Development Status
Consent Authorised
Category or Round
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Vattenfall AB

Vattenfall AB


Vattenfall AB

Vattenfall AB

Offshore Construction Starts
Submitted For Consent
Consent Authorised
Financial Close
First Power
Full Commissioning
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Revenue Mechanism
Revenue Details
/MWh (EUR /MWh)

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Power & Turbines
Windfarm Capacity
2800 MW
Turbine Model
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Other Turbine(s) Used
Min. Turbine Capacity (MW)
Max. Turbine Capacity (MW)
Min. Number of Turbines
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Max. Number of Turbines
Total Turbine Height
Hub Height
Rotor Diameter
Foundation Type
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Foundations on Wind Farm
Foundation Comments

Location & Environment
Sea Name
North Sea
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Depth Range (Chart Datum)
Depth Range (Stated by Developer)
Distance from Shore (Developer)
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Distance from Shore (Computed)

Installation Base
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Ops and Maintenance
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Number of Offshore Platform(s)
Shared Platform Type
Grid Connection Point
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Cable Landing Point

Export Cables (AC & DC)
Number of Export Cables (AC)
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Average Length per Cable (AC)
Additional Requirements (AC)
Nominal Voltage (AC)
Number of Export Cables (DC)
Average Length per Cable (DC)
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Additional Requirements (DC)
Nominal Voltage (DC)

Nominal Voltage

Onshore Cables
Number of Onshore Cables
Average Length per Cable
Expected Life