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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.

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04 Apr 2024: The Consent Variation submitted on 11th October 2023 has been approved. Approved variation: Reducing the number of Wind Turbine Generators (WTGs) from seven to six; Reducing the WTG footprint area from 10 km2 to 5.85 km2 . This comprises the area of sea surface occupied by the WTGs and associated floating substructure, excluding the mooring lines; Reducing the rotor swept area from 316,673 m2 to 283,448 m2 . This comprises the installation of up to 1 x WTG with rotor diameter up to 220 m and 5 x WTGs with rotor diameter up to 250 m; Reducing the number of floating substructures from seven to six; Reducing the number of mooring lines from 63 to 54; Reducing the number of anchors or piles from 63 to 54; and Extending the operational life of the Project from 10 to 25 years
United Kingdom
Consent Authorised
85 MW
4C Offshore | Location Map: Lat(58.656) Lon(-3.871)

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General Information
Other Names
Pentland Floating Offshore Wind Farm, PFOWF; Dounreay Trí
United Kingdom
Development Status
Consent Authorised
Category or Round
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Unlock with a freemium account
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Highland Floating Winds Ltd

Highland Floating Winds Ltd


Copenhagen Infrastructure Partners

Copenhagen Infrastructure Partners


Hexicon AB

Hexicon 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)

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
85 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 Atlantic Ocean
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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