On June 17, 2025, it was announced that TotalEnergies, as part of North Sea OFW One GmbH, won the offshore wind N‑9.4 concession from Germany’s Federal Network Agency. Located some 150 km northwest of Heligoland, this 141 km² site is set to generate up to 1 GW of clean, renewable energy for 25 years (with an option to extend to 35 years) . What’s more, this isn’t just another spot on the map, it is a symbol of Germany’s dedication to green energy and TotalEnergies’ expanding role in powering the future.
Clustered for Success
Interestingly, N‑9.4 is nestled right next to the N‑9.1 and N‑9.2 zones, where TotalEnergies and RWE already work together. Because of this proximity, TotalEnergies plans to build all three zones as a unified cluster. By doing so, they’ll streamline logistics, share infrastructure, and reduce costs. This will benefit both the planet and end users. Interestingly, this auction introduced a mandatory “over planting” requirement, a first in Germany, meaning they’ll install 10–20 % more capacity than the grid connection can handle. In essence, this boosts reliability by having spare capacity during peak conditions.
Also Read Construction of Africa’s First Offshore Windfarm Expected to Commence by 2029
Financial and Environmental Promises
Plus, Offshore Wind One GmbH has pledged €18 million in 2026 to support marine conservation and sustainable fishing. Then, after the site goes live, they’ll also pay €8.1 million annually over 20 years to support Germany’s transmission operator . Yet, there’s a hitch, German grid operators have announced delays in the connection timeline. As a result, TotalEnergies is conducting a strategic review of its concessions since 2023 and proactively discussing revised development timelines with the German government.
Growing Clean Energy Ambitions
Ultimately, the N‑9.4 concession fits into TotalEnergies’ broader goal: delivering dependable, low-carbon energy. As of March 2025, the company had 28 GW of renewable power installed and is on track to hit 35 GW by year’s end, aiming for 100 TWh of clean electricity by 2030 . Moreover, its global offshore wind portfolio now reaches 23 GW, spanning bottom-fixed farms in the UK, France, Taiwan, the U.S., and more, building momentum toward a greener, more sustainable energy future.
Also Read: Ørsted Discontinues Hornsea 4 Offshore Wind Project — What Does It Mean?
TotalEnergies N-9.4 offshore wind Project Overview
Project Name & Operator: North Sea OFW One GmbH (TotalEnergies shareholding)
Location: Approximately 150 km northwest of Heligoland, North Sea
Site Area: 141 km² (141 square kilometers)
Installed Capacity: 1 GW of offshore wind generation
Concession Duration: 25 years initial term, extendable up to 35 years
Cluster Strategy:
Site is adjacent to N‑9.1 and N‑9.2 (TotalEnergies + RWE). Enables shared infrastructure and reduced costs
Key Payments & Environmental Funding:
One-off €18 million payment in 2026 to support marine conservation and eco-friendly fishing
€8.1 million annually for 20 years to the grid operator (from commissioning)
Auction Highlights:
Zero-subsidy bidding attracted multiple participants
Mandatory overplanting of turbines: 10–20% more capacity than grid allows—to ensure redundancy and flexibility
Winning bid reported at €180 million
Grid Connection:
Will link via TenneT’s NOR‑9‑4 (BalWin 5) offshore grid, expected in service by 2032
