Nordsee One

What Nordsee One does

Nordsee One GmbH is a German special-purpose vehicle that develops, finances, constructs, and operates the 332 MW Nordsee One offshore wind farm, located approximately 45 km north of the island of Juist in the German North Sea. The asset comprises 54 Senvion 6.2M126 wind turbine generators (each rated 6.15 MW, 126 m rotor diameter, ~152 m hub height) mounted on steel monopile foundations in 26–29 m water depth, interconnected via ten string arrays totalling ~70 km of subsea cabling to a 155 kV offshore substation, with transmission to shore through the Dolwin Beta HVDC converter station and onward to the Dörpen-West 380 kV grid connection. The wind farm spans 41.3 km² and was completed on schedule and below its €1.2 billion total budget, achieving commercial operation in December 2017.

The company sells generated electricity through two channels: regulated feed-in tariff arrangements into the German grid during the initial operating phase (2017–2026), and a 5-year Power Purchase Agreement (PPA) with Shell Energy Europe Ltd commencing June 2027 covering approximately one-third of annual output for green hydrogen production at the REFHYNE 2 electrolyser. Annual output of ~1,300 GWh supplies the equivalent of 400,000 German households and avoids more than 1 million tonnes of CO₂ per year versus coal generation. Nordsee One is jointly owned by Northland Power Inc. (85%, a Canadian independent power producer and offshore wind operator) and RWE (15%, a German utility); Northland Power Europe GmbH operates and maintains the asset under a long-term service agreement from a dedicated 26-year-rented base at Norddeich, with 90+ specially-trained personnel. Headquartered in Oststeinbek and registered in Germany as a GmbH, the company holds the regulatory BSH permit secured in April 2012 and is currently in steady-state commercial operation.

Name

Nordsee One

Legal name

Nordsee One GmbH

Website

https://nordseeone.com

Company type

Private

Founded year

2013

Operating status

Operating

Headcount range

11–50 employees

Short description

Nordsee One GmbH operates the 332 MW Nordsee One offshore wind farm in the German North Sea, using 54 Senvion turbines to generate renewable electricity sold under feed-in tariff and a Shell PPA. The SPV is jointly owned by Northland Power (85%) and RWE (15%).

Ownership category

akta.pro rank

Product category

Offshore Wind Energy

NAICS

Wind Electric Power Generation (221115), Electric Power Generation (22111)

akta.pro industry

PRIMARYEUACAFAF

Wind Farm Ownership & Operations (IPP/Utility-Owned Asset Operations)

Energy, Utilities & Environment/Electric Power Generation/Wind Power Generation (Onshore & Offshore)

SECONDARYEUAMACAH

Wind Operations, Maintenance & Asset Management (Scheduled/Unscheduled)

Energy, Utilities & Environment/Renewable Energy (Solar, Wind, Hydro & Geothermal)/Wind Energy (Onshore & Offshore)

SECONDARYEUAMACAL

Wind Repowering, Lifetime Extension & Uprates

Energy, Utilities & Environment/Renewable Energy (Solar, Wind, Hydro & Geothermal)/Wind Energy (Onshore & Offshore)

Keywords

• Offshore wind energy
• Wind farm operations
• Renewable electricity generation
• Power purchase agreements
• Offshore wind power

Headquarters

HQ city

Oststeinbek

HQ country

Germany

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Operations, Personnel, Infrastructure, Technology or R&D, Others

Revenue model

1. Electricity Sales - Feed-in Tariff: Sale of generated electricity to the German grid under regulated feed-in tariff arrangements established during the initial operational phase (2017-2026). Revenue from supplying approximately 400,000 households with green electricity annually.
2. Power Purchase Agreement (PPA) - Shell: 5-year PPA with Shell Energy Europe Ltd commencing June 2027 for approximately one-third of annual output. Revenue from selling renewable power to corporate offtaker for hydrogen production at REFHYNE 2 electrolyser.

Go-to-market motion1 record

Distribution channels2 records

Marketing channels2 records

Core offering

Nordsee One owns and operates a 332 MW offshore wind farm in the German North Sea, consisting of 54 Senvion 6.2M126 wind turbines installed on monopile foundations and connected via an offshore substation and HVDC grid link. The company generates approximately 1,300 GWh of renewable electricity per year and sells the entire output wholesale — primarily into the German grid under feed-in tariff arrangements and increasingly through long-term Power Purchase Agreements (PPAs) with corporate offtakers such as Shell Energy Europe Ltd.

Product overview

Nordsee One operates as a single offshore wind farm asset offering, with the core product being the 332 MW Nordsee One offshore wind farm consisting of 54 Senvion 6.2M126 turbines. Supporting operations include an offshore substation that transforms and transmits electricity to the German grid via the Dolwin Beta HVDC connection, and comprehensive operations and maintenance services delivered from a base in Norddeich. The wind farm entered commercial operation in December 2017 and recently signed a 5-year PPA with Shell commencing June 2027.

Differentiator

Problem solved

Functional benefit

Products and services

• Nordsee One Offshore Wind Farm A 332 MW offshore wind farm located approximately 40–45 km north of the German island of Juist in the North Sea, comprising 54 Senvion 6.2M126 wind turbines (each 6.15 MW) on monopile foundations, interconnected by ten inter-array cable strings and a 155 kV offshore substation and fed into the German 380 kV grid via the Dolwin Beta HVDC connection. It produces around 1,300 GWh of renewable electricity per year and is sold wholesale to corporate offtakers such as Shell Energy Europe Ltd (under a 5-year PPA from June 2027) and into the German grid under regulated feed-in tariff arrangements.

Quantifiable outcome

• Energy amortized within first year of operation - recovered energy used for production, installation, and decommissioning/recycling
• +3 more outcomes

Named customers1 record

Segments2 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Three partnerships are on record, tiered core and major.

• Shell Energy Europe LtdcoreStrategic or Co-development Partner · 18 November 20255-year Power Purchase Agreement (PPA) with Shell Energy Europe Ltd for approximately one-third of annual output from the 332 MW Nordsee One offshore wind farm. PPA commences June 2027. Shell plans to use a proportion of the renewable power to produce green hydrogen at the REFHYNE 2 hydrogen electrolyser (100 MW) under construction at Shell Energy and Chemicals Park Rheinland. This partnership demonstrates offshore wind's potential to support decarbonization of German industry.
• Northland Power Europe GmbHcoreOthersNorthland Power Europe GmbH serves as the service provider for operations and maintenance activities at the Nordsee One wind farm. New WTG service agreement commenced September 2019, and new BoP service agreement commenced November 2022.
• Norddeicher Schiffswerft GmbHmajorOthersLong-term 26-year rental agreement with Norddeicher Schiffswerft GmbH for the operations and maintenance base in Norddeich. Covers more than 1,500 m² for offices, workshop, and warehouse facilities.

Scale indicators11 records

Recent moves8 records

Expansion highlights4 records

Broad incumbents

• RWE: German utility and one of the world's largest offshore wind developers/operators with multiple North Sea farms. RWE owns 15% of Nordsee One and shares its German regulatory and grid ecosystem, making it both a shareholder and the most directly comparable domestic incumbent.
• Ørsted: Global offshore wind leader with multiple German North Sea farms (Borkum Riffgrund, Gode Wind). Directly comparable as an IPP operating large-scale offshore wind assets in the same regulatory and grid environment.
• EnBW: German utility operating the Hohe See and Albatros offshore wind farms in the German North Sea. Closely comparable as a domestic incumbent with German offshore wind assets of similar vintage.
• Equinor: Norwegian state-backed energy company with growing European offshore wind portfolio, including projects in the German North Sea (like Empire Wind and Hywind). Comparable as a large integrated operator scaling offshore wind.
• Vattenfall: Swedish state-owned utility with offshore wind assets in the UK, Germany, Netherlands and Denmark. Comparable as a European incumbent utility developing and operating offshore wind in the North Sea.
• Iberdrola: Spanish global utility with offshore wind development through Avangrid and partnership with CIP (e.g. Vineyard Wind). Comparable as a large incumbent expanding offshore wind capacity outside its home market.
• E.ON: German utility with significant renewable generation assets and grid connections, including offshore wind interests. Comparable as a domestic incumbent with a renewables-led strategy and feed-in tariff exposure.
• TotalEnergies: French integrated energy major expanding into offshore wind and corporate PPAs, including partnership approaches similar to Nordsee One's Shell PPA. Comparable as a buyer-side alternative in the offshore wind offtake market.

Others

• Northland Power: Canadian independent power producer and 85% owner of Nordsee One, with a global offshore wind portfolio including Deutsche Bucht. Operates Nordsee One's O&M services and provides the closest operational analogue to a single-asset offshore wind SPV.
• TenneT: Dutch-German transmission system operator that owns and operates the DolWin HVDC platform connecting Nordsee One and other German North Sea wind farms to the grid. Comparable as the critical infrastructure provider enabling Nordsee One's electricity export.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Nordsee One