Nordergrunde
Located 15km NE of Wangerooge island in German North Sea 12nm zone.
Technology
Capacity
111 MW ◆
Turbines
18 × 6.2 MW ◆
Model
Senvion 6 2m126 ◆
Foundation
Monopile ◆
Site & conditions
Site rights
Seabed rights held ∴
Water depth
6–10 m ≈
Distance from shore
16 km ◆
Wind speed
9.5 m/s @ 100 m ≈
Revenue & grid
Offtake
Premium ◆
Grid
Secured · 2017-10 ◆
Connection
TenneT AC 155kV; 32km cable (28km subsea + 4km onshore) to … ◆
Schedule
FID
Jun 2015 ◆
COD
Dec 2017 ◆
Project timeline verified milestones only — each date carries its provenance mark
Dashed tick marks today (9 Sep 2026).
Announced-COD history: 2017-Q4→2017-12 · 2 recorded revisions · held (announced 2017-Q4, unchanged)
Revenue & offtake the regime the project was built under
Offtake regime on record
RegimeEEG 2014 (initial tariff 15.4 ct/kWh for 12 years, or 19.4 ct/kWh for 8 years, nearshore)
Instrumentmarket premium
A built project sells its power under the contract or support regime it was financed with; it is not expected to bid into new government offtake rounds. Where the record does not yet name that regime, the row says so rather than guessing.
Installation how the build is going · from satellite counts and Hafrok’s registers
Satellite survey
the farm as it stands, counted from satellite radar images · built before the count began, so there is no build to chart
Satellite survey
Structures standing18≈18 turbines + 1 platform expected · 1 fewer than expected — a position the survey missed
Surveyed2026-09-01≈from 117 satellite passes
Built2016-08 → 2017-12offshore construction to start of operation, from the record
Hafrok counts the structures standing in the sea from satellite radar images (≈) and reads the count against the turbines and platforms on record. The farm was built before this count began, so the images show it complete; they cannot date its construction. Rows marked with a dot (·) come from Hafrok’s own registers.
Satellite image
Image taken2026-09-07≈Copernicus Sentinel-1 radar satellite, southbound pass
Farm covered100%≈the whole farm lies inside the image
Structures ringed18 confirmed · 0 not yet confirmed≈as counted on 2026-09-01 · the image is newer than the count, so a bright spot without a ring may be a structure not yet counted
Construction ports
PortBremerhaven (Eurogate Container Terminal) ◆·installation · quay 4930 m · draft 12.8 m
Contains modified Copernicus Sentinel data 2026, processed by ESA and by Microsoft Planetary Computer.
Latest satellite radar image · 2026-09-07
a radar picture, not a photograph: the sea is dark, steel is bright · black is beyond the edge of the image
confirmed structure (18)seen recently, not yet confirmed (0)probably a substation platform (a larger structure than a turbine; the register above has the facts)farm boundary

Grid connection
from Hafrok’s substation, converter and cable registers
Offshore platforms · 1
Offshore substationNordergründe offshore substation·owner wpd AG's project company at construction; Skyborn Renewables took full ownership of the wind farm (own-2026-07-de-nordergrunde). The platform sits inside the wind farm's scope, not TenneT's — see builder_basis.
Grid connection · ready in time?
when each part of the grid connection is due, against the start date the developer states (black line) · a bar spans the whole year, quarter or month the source gives
installed or in serviceexpected deliveryearlier date that was later moved
Sources & verification
15/18 fields verified · rests on 14 sources (9 primary) · ◆ 5 documents held
◆Verified≈Modelled◇Sourced∴Inferred⌁Convention○Unverified∅No source·Derived
Numbers are stable citation ids — grouped by source class, so they are not consecutive.
Regulator1
[15]
Bundesnetzagentur — Marktstammdatenregister2026-08-23◆ Marktstammdatenregister (MaStR) offshore…
“Park row "OWP Nordergründe": 18 units, 110.7 MW gross, statuses {'In Betrieb': 18}, operators ['OWP Nordergründe GmbH & Co. KG'], commissioned 2017-11-03..2017-12-17, planned None..None.”
supportsRegister entry
Operator2
[9]
Skyborn Renewables2026
“Nordergründe [...] 111 MW [...] Commissioned in 2017 [...] 18 Senvion turbines [...] Located 13 kilometres off Lower Saxony's coast [...] supplies renewable energy to approximately 110,000 households.”
supportsTurbinesModelTotal capacity
[13]
wpd AG2016-08-19
“After the successful assembly of all 18 foundation structures, conversion of the installation ship, the MPI Enterprise, for erecting the wind turbines in the Weser estuary began at the beginning of Au…”
supportsOffshore constructionSite rights
Financier1
[2]
European Investment Bank2015-06-02◆ Germany: EIB supports Nordergründe offsh…
“Signed | 02/06/2015 [...] The EIB is providing EUR 156 million to co-finance the construction of the 111 MW Nordergründe offshore wind farm located 16 km off the coast of East Frisia [...] co-financed…”
supportsTurbinesModelUnit capacityTotal capacityDistance from shore
Trade press10
[1]
Presseportal / Energiekontor AG2007-11-19◆ Genehmigung für den Offshore-Windpark No…
"Genehmigung für den Offshore-Windpark Nordergründe erteilt [...] Das Staatliche Gewerbeaufsichtsamt Oldenburg hat die Errichtung und den Betrieb des Offshore-Windparks Nordergründe im Bereich der Wes…
supportsConsentConsent granted
[3]
offshoreWIND.biz2017-11-02◆ Nordergründe OWF Finally Running | Offsh…
Press report — cited, not quoted; read it at the source link.
supportsFirst powerStatusConnection point
[4]
offshoreWIND.biz2017-12-18◆ Last Nordergründe Turbine Hooked to the …
Press report — cited, not quoted; read it at the source link.
supportsCommercial operationCOD historyTurbinesTotal capacity
[5]
offshoreWIND.biz2016-08-19
Press report — cited, not quoted; read it at the source link.
supportsFinal investment decision
[6]
Power Technology2018
Press report — cited, not quoted; read it at the source link.
supportsFoundationCoordinates
[7]
offshoreWIND.biz2016-03-10
Press report — cited, not quoted; read it at the source link.
supportsinstallation
[8]
Clean Energy Wire2017
“Facilities becoming operational before 2020 can choose between two options: 1. Fixed payment of 15.4 ct/kWh for 12 years, or 2. 19.4 ct/kWh for 8 years [...] After the initial period expires [...] bas…”
supportsMechanismDetail
[11]
[12]
[14]
