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4C is now TGS

We are excited to announce a significant milestone in 4C Offshore's journey. Our integration into the TGS family marks the beginning of a new era in offshore wind market intelligence.

Learn what this means for you!
19 Mar 2024: Update April 16th 2024: The Planning Inspectorate has accepted the project for examination. The project may consists of: up to 100 turbines with a 236-340m rotor diameter, up to 403m maximum tip hieght, and 40 minimum blade clearance up to 2 artificial nesting structures 2 or 4 offshore substations 1 onshore substation an offshore accommodation platform for 50 staff members Update March 2024: Outer Dowsing submitted the DCO application on 19th March 2024. The Planning Inspectorate now has 28 days to decide if the application will be accepted for examination. Update October 2023: DCO application to be submitted Q1 2024 Update June 2023: Communicated submission date is still Q4 2023 Update January 2023: Outer Dowsing is preparing to submit its consent application after securing the Agreement for Lease with the Crown Estate. The application is expected to be submitted to the Planning Inspectorate Q4 2023.
United Kingdom
Consent Application Submitted
1500 MW
4C Offshore | Location Map: Lat(53.568) Lon(1.285)

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General Information
Outer Dowsing
Other Names
Outer Dowsing Offshore Wind (ODOW), GTR4
United Kingdom
Development Status
Consent Application Submitted
Category or Round
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Unlock with a freemium account
Unlock with a freemium account
Unlock with a freemium account



Outer Dowsing Offshore Wind

Outer Dowsing Offshore Wind


Green Investment Group (GIG)

Green Investment Group (GIG)




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)

How does the database work?

4C Offshore marine intelligence software provides you with exclusive access to a range of specialised services including the Global Offshore Wind Farm Database. 4C Offshore grants you exclusive access to online and offline databases, reports, newsletters, online tools and more.

There are three levels of access: Free, Freemium and Full. Freemium allows you to personalise notifications, use the search function and access more data.

You will need Full access to use the 4C Offshore interactive system, access reports, updates, news, downloads and more. To find out more about how 4C Offshore software works and the benefits of Full access, enquire below.

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Power & Turbines
Windfarm Capacity
1500 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