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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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02 Jul 2019: Following an initial announcement of intention in June 2019, the Ministry of Petroleum and Energy has submitted the proposal to request opening of areas for offshore wind and also a new regulation to supplement the ocean energy act and clarify the leasing process. This follows on from recommendations made by the Water and Energy Directorate (NVE) in early 2018, that Utsira Nord and Sørlige Nordsjø I or 2 should be prioritised for development. However, the announcement in June did not include Sørlige Nordsjø I and this was confirmed in the July proposal, which includes areas Utsira Nord, Sandskallen – Sørøya Nord and potentially Sørlige Nordsjø II. Although Sørlige Nordsjø I has less conflict with shipping and lower environmental risk, Sørlige Nordsjø II is closer to the European power system, is a larger area and has fewer allocated petroleum production licences. Sørlige Nordsjø I may be put forward as a candidate for future development but should not be considered as under active planning. Sandskallen – Sørøya Nord was included in July's proposal as an attractive area for both floating and bottom-fixed foundation. Also, this area will provide opportunities for ocean industries in the North Norway.
Development Zone
1500 MW
4C Offshore | Location Map: Lat(57.420) Lon(3.534)

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General Information
Sørlige Nordsjø I
Other Names
Offshore wind - study area; Category A
Development Status
Development Zone
Category or Round
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Norges vassdrags- og energidirektorat (NVE)

Norges vassdrags- og energidirektorat (NVE)


Ministry of Petroleum and Energy (Norway) (MPE)

Ministry of Petroleum and Energy (Norway) (MPE)

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
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