By the end of 2025, Fugro and Geoquip Marine had completed a comprehensive detailed geotechnical investigation campaign across the Sørlige Nordsjø II concession for Ventyr, constituting phase 1 of the geotechnical programme and providing soil characterisation data to reduce geological uncertainty and support detailed foundation engineering for the offshore wind farm.
Throughout 2025, Ventyr completed major geophysical survey campaigns for Sørlige Nordsjø II, including a high‑resolution 3D ultra‑high‑resolution seismic survey carried out by TGS’s vessel Ramform Vanguard in the concession area and an extensive nearshore geophysical survey by Norkyst to link coastal data with the planned offshore cable route, providing inputs for foundation and cable design and layout.
Ventyr, developer of the Sørlige Nordsjø II Phase 1 offshore wind farm, awarded DNV a contract to provide Design Certification services for the project’s wind turbines and offshore substation, ensuring the assets meet Norwegian regulatory requirements and international best practice for Norway’s first bottom-fixed offshore wind farm in the southern North Sea.
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Sørlige Nordsjø II (SN II) Phase 1 is the first commercial-scale offshore wind development awarded on the Norwegian continental shelf. Located in the southern North Sea near the Danish maritime border, the Phase 1 project was auctioned as a single project area of up to 1,500 MW and covers roughly...
Owners
SNII Phase 1, Sorlige Nordsjo II Phase 1, Southern North Sea II Phase 1, Ventyr SN II, Sørlige Nordsjø II – phase 1
Ventyr selected Worley Rosenberg as preferred contractor for the offshore substation on the Sørlige Nordsjø II Phase 1 wind farm, signing a preferred contractor agreement and an early works agreement for design engineering, with engineering planned to start in June 2025 and roll over into a full EPCI phase around December 2025.
Ventyr recently awarded Norconsult a contract to design and plan the onshore grid infrastructure for the Sørlige Nordsjø II Phase 1 project, covering the onshore components needed to connect up to 1,500 MW from the offshore wind farm into the Norwegian transmission system.
On 11 June 2025, Ventyr selected Norconsult to begin Front End Engineering Design (FEED) and detailed design and planning of the onshore grid infrastructure for the Sørlige Nordsjø II Phase 1 export connection, including the onshore grid connection and power landing solution that will link the offshore HVDC export system into Norway’s mainland transmission network.
In October 2024, the Norwegian Water Resources and Energy Directorate (NVE) released the final impact assessment (IA) programme for the Sørlige Nordsjø II Phase 1 project and its grid connection to the Norwegian mainland. This decision established the definitive scope and methodology for the environmental impact assessment covering both the offshore wind farm and the associated HVDC export cable system and onshore substation works.
In October 2024, Ventyr began environmental and metocean monitoring for Sørlige Nordsjø II Phase 1 by deploying two specialised monitoring buoys supplied by Akrocean and TechWorks Marine, equipped with AI‑powered cameras from SPOOR and supported locally by WINDPORT, to collect key wind, oceanographic and environmental data for the project.
In autumn 2024, Ventyr appointed Norconsult as advisor to carry out the onshore and nearshore environmental impact assessment for the Sørlige Nordsjø II Phase 1 grid connection, covering environmental and natural conditions along the landfall and onshore infrastructure corridor needed to connect the offshore wind farm to the Norwegian transmission network.
In May 2024, Ventyr submitted a formal project notification and a project-specific impact assessment (study) programme for the Sørlige Nordsjø II Phase 1 offshore wind farm and its grid connection to shore. This submission initiated the environmental assessment process for the 1.5 GW project’s offshore HVDC export link to the Norwegian mainland, enabling the authorities to prepare a detailed study programme covering effects on the onshore power grid and affected municipalities in Agder county.
On 31 May 2024, the Norwegian Water Resources and Energy Directorate (NVE) opened a public consultation on its proposed study programme for the environmental impact assessment of the Sørlige Nordsjø II offshore wind project and its onshore grid connection. The consultation concerns how the plant, which will connect to the power grid on land and affect four municipalities in Agder county, should be investigated with respect to environmental and local impacts of the export connection.
In April 2024, following the March auction, Ventyr SN II AS signed the Contract for Difference with the Norwegian state, described as the contract for offshore wind at Sørlige Nordsjø II, thereby formalising the allocation of the Phase 1 project area and associated support framework.
In April 2024, the Contract for Difference (CfD) between Ventyr SN II AS and the Norwegian state for Sørlige Nordsjø II Phase 1 was formally signed, following Ventyr’s successful bid in the March auction. The signed CfD contract legally confirms the long-term revenue support arrangement and associated conditions for developing Norway’s first commercial offshore wind farm.
On 19 April 2024, Ventyr and the Norwegian Government signed the Contract for Difference (CfD) for Phase I of Sørlige Nordsjø II, a state-aid revenue support contract with a cap of NOK 23 billion. This agreement underpins financing of the integrated 1.5 GW project, including the developer-owned +320 kV HVDC export system—offshore HVDC substation, submarine export cables, and onshore converter station—connecting into Statnett’s transmission network in Southern Norway.
On 20 March 2024, the Norwegian authorities awarded the first phase of Sørlige Nordsjø II to Ventyr (Parkwind and Ingka) following a competitive CfD auction, with a winning bid of 1.15 NOK/kWh. Under the tender conditions, Ventyr as developer is responsible for planning, constructing, financing and operating the approximately 200 km +320 kV HVDC radial export connection—from the offshore HVDC substation via submarine DC export cables to the onshore converter station and onward to Statnett’s transmission grid, with Kvinesdal identified as the primary connection point.
On 20 March 2024, Ventyr SN II AS (a consortium of Parkwind/JERA Nex bp and Ingka Investments) won Norway’s first offshore wind auction for Sørlige Nordsjø II Phase 1, securing a two‑way Contract for Difference (CfD) with a strike price of 1.15 NOK/kWh (115 øre/kWh) for up to 1,500 MW of capacity. The award grants Ventyr time‑limited exclusive rights to the project area and access to a state support scheme capped by Parliament at NOK 23 billion in CfD subsidies, de‑risking future power revenues for the project.
The initial geophysical survey phase in the eastern part of Sørlige Nordsjø II, covering seafloor and sub‑seafloor mapping with ultra‑high‑resolution seismic, bathymetry, sonar and magnetometer measurements, was completed in 2023, with the resulting datasets and interpretation reports made available via the Diskos public portal.
On 19 December 2023, the EFTA Surveillance Authority issued its state-aid decision for Phase I of Sørlige Nordsjø II, setting out a Contract for Difference (CfD) revenue support scheme for the 1.4–1.5 GW project and its connection to the Norwegian mainland grid. The decision confirms that the wind farm will be linked to the Southern Norway (NO2) price area via an HVDC connection comprising offshore and onshore converter stations and DC export cables, with CfD support applying only to electricity up to 1,400 MW transferred through this link to the onshore connection point.
On 7 November 2023, Norway’s Ministry of Petroleum and Energy published the final version of the Contract for Difference (CfD) for the Sørlige Nordsjø II area (1.5 GW), establishing the contractual framework for state support to the winning offshore wind project in Phase 1 and setting conditions such as change‑of‑control approval rules and penalties if the winning bidder fails to sign within four weeks of the auction.
The Norwegian Ministry of Petroleum and Energy defined the ownership regime for the Sørlige Nordsjø II Phase 1 export radial, stipulating that the project developer will be responsible for planning, constructing, financing, owning and operating the HVDC radial from the offshore wind farm to the designated onshore connection point. The framework further specifies that this export grid installation will remain under developer ownership as long as it only serves the wind farm (or a limited number of other users), and must be transferred to Statnett if later reclassified as part of the national transmission grid, with transfer conditions governed by the Contract for Difference support agreement.
On 1 December 2022, Norwegian transmission system operator Statnett issued a letter to the authorities clarifying its recommendation for the onshore grid connection point for the first phase of Sørlige Nordsjø II. Statnett recommended using the existing Kvinesdal substation as the primary connection point for the export radial, as it is the closest strong node where the project can connect without major grid measures, and proposed a new Mosby substation near Kristiansand as a secondary alternative. This recommendation guides the planning of the export cable route and onshore grid interface for the Sørlige Nordsjø II Phase 1 export system.
The first phase of geophysical and subsurface surveys for the eastern part of the Sørlige Nordsjø II area, corresponding to the initial development phase, started in autumn 2022 under a marine site characterisation programme commissioned by the Norwegian authorities and executed by Fugro.
On 12 June 2020, the Norwegian government announced that the Sørlige Nordsjø II area, including Phase 1, would be opened for licensing applications for offshore wind, formally designating the zone south in the North Sea near the Danish border for up to 3,000 MW of renewable offshore energy production.
Ventyr, a consortium jointly formed by Parkwind and Ingka Investments, is identified as the developer of the Sørlige Nordsjø II Phase 1 project, including responsibility for the 1.5 GW offshore wind development and its associated HVDC export connection to the Norwegian onshore grid. Under Norway’s developer‑full model, the project developer is understood to be responsible for the grid connection design, installation and operation, meaning this Ventyr joint venture also covers the Sørlige Nordsjø II Phase 1 Export cable system and related converter/substation assets.
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