Hornsea Project One Offshore Wind Farm

Status:
Fully Commissioned
Capacity:
1218 MW
Location:
United Kingdom

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General Information
Name
Hornsea Project One
Other names
Zone 4, Subzone 1, Heron Wind & Njord
Country
United Kingdom
Development status
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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
Type
Organisation
Operator-Offshore Transmission
Owner-Offshore Transmission

Offshore Construction Starts
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Submitted For Consent
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Consent Authorised
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Financial Close
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First Power
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Full Commissioning
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Revenue mechanism
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Revenue details
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Revenue (MWh)
140
Revenue (EUR/MWh)
158.73

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14 Jan 2021: Hornsea 1’s 18-month commissioning period ends on 14 January 2021 by which point the transmission assets must be transferred to the OFTO. In June the UK government proposed an exemption order for wind farm generators in tender rounds 5 and 6 of the offshore transmission owner (OFTO) regime, who have been affected by COVID-19 and are currently in the process of transferring assets between the wind farm developer and new OFTO company. in the UK developers/owners are allowed to own and operate the transmission systems for 18 months without a transmission license but after this ownership must be transferred to an OFTO company selected by Ofgem. Projects to be affected include Rampion, Beatrice, Hornsea One and East Anglia ONE offshore wind farms. The government considers that the Hornsea One, Rampion and Beatrice projects are likely to be unable to complete the transfer of transmission assets within the 18-month commissioning period and propose a 12 month extension. The government also propose a three month extension for East Anglia ONE due to delays to the tender process and a likely knock on effect to the transfer of assets. A consultation on the proposal closes on 10th July. Hornsea One’s 18-month commissioning period ends on 14th January 2021. The cumulative impacts of decreased personnel availability and disruption to normal working practices during the “lockdown” period and accounting for future amended working practices in the near term and knock on impacts of any delays to other projects with deadlines prior to Hornsea One, can be expected to have a significant but uncertain impact on the timetable for transfer. Preferred OFTO bidder Diamond Transmission Corporation (DTC) does not expect any delays to the transfer process but Hornsea One and the government still wish to implement an extension.
Power & Turbines
Windfarm capacity
1218 MW
Turbine model
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Other turbine(s) used
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Min. turbine capacity (MW)
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Max. turbine capacity (MW)
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Min. number of Turbines
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Max. number of Turbines
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Total turbine height
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Hub height
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Rotor diameter
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Foundation type
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Foundations on Wind Farm
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Foundation comments
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Location & Environment
Sea name
North Sea, Southern North Sea (Humber)
Latitude
53.883302°
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
Installation base
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Ops and Maintenance
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Grid
Number of offshore platform(s)
4
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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Average length per cable (DC)
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Additional requirements (DC)
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Nominal voltage (DC)
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Nominal voltage
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Comments
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Onshore Cables
Number of Onshore cables
3
Average length per cable
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Expected life
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