Amrumbank West
Located 35km north of Helgoland, 37km west of Amrum island.
GermanyTechnology
Capacity
302 MW ◆
Turbines
80 × 3.6 MW ◆
Model
Siemens Swt 3-6-120 ◆
Foundation
Monopile ◆
Site & conditions
Site rights
Seabed rights held ∴
Water depth
20–25 m ◆
Distance from shore
35 km ◆
Wind speed
9.9 m/s @ 100 m ≈
Revenue & grid
Offtake
FiT ◆
Grid
Secured · 2015-10 ◆
Connection
TenneT HelWin2 HVDC (±320kV, 85km cable to Buttel converter … ◆
Schedule
FID
Taken · date not recorded ∴
COD
2015-Q4 ◆
Project timeline & ownership verified milestones on the spine · ownership from Hafrok’s transactions record
Merger · 2018-03
E.ON → RWE 100%
- Stake
- 100%
- Consideration
- not disclosed
- Announced
- 2018-03
- Closed
- 2019-10
- Project stage
- operational
E.ON's 100% transferred to RWE as part of E.ON/RWE/Innogy asset swap. Not arm's-length; no project-level consideration. Now 100% RWE-owned.
Evidence
From Hafrok’s transactions record
Dashed tick marks today (9 Sep 2026). Ownership lives in the band below: one station per recorded deal, dated at its label, in deal order rather than to calendar scale. Secondary trades appear only at the interchanges; grey lines are parties whose entry or exit Hafrok’s record does not hold.
Revenue & offtake the regime the project was built under
Offtake regime on record
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 standing81≈80 turbines + 2 platforms expected · 1 fewer than expected — a position the survey missed
Surveyed2026-09-01≈from 117 satellite passes
Built2014-01 → 2015-Q4offshore 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 ringed81 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
PortCuxhaven ◆·foundations · quay 734 m · crane 650 t · draft 12.7 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 (81)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 · 2
Offshore substationUmspannwerk Amrumbank West·33/155 kV · in service 2015 · owner E.ON (wind farm owner) — farm-owned AC collector platform, not TSO-owned
HVDC systemHelWin2·690 MW · ±320 kV · in service 2015-06 · shared with Kaskasi
Converter supplierSiemens·HelWin2 · Heerema, Zwijndrecht, Netherlands · for TenneT
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
18/19 fields verified · rests on 11 sources (6 primary) · ◆ 7 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
[12]
Bundesnetzagentur — Marktstammdatenregister2026-08-23◆ Marktstammdatenregister (MaStR) offshore…
“Park row "Amrumbank West": 22 units, 83.16 MW gross, statuses {'In Betrieb': 22}, operators ['Amrum-Offshore West GmbH'], commissioned 2015-05-02..2015-08-31, planned None..None. Park row "Amrumbank-W…”
supportsRegister entry
Operator4
[1]
RWE2025◆ Amrumbank West offshore wind farm | RWE …
"Amrumbank West … 80 turbines with a total capacity of 302 MW … around 35 km north of the island of Heligoland … 37 km west of the North Frisian island of Amrum … waters between 20 and 25 metres deep …
supportsOnshore constructionOffshore constructionSite rightsTurbinesTotal capacity+7 more
[4]
RWE2023-01-16◆ Green electricity from Nordsee Ost and A…
“both wind farms currently receive funding under the Renewables Act (Erneuerbare-Energien-Gesetz, EEG), which is set to expire from 2024 and 2025 respectively … 80 wind turbines with an installed capac…”
supportsTotal capacity
[9]
[13]
RWE2025-02-07◆ Secondary reserve from offshore wind pow…
“RWE plans to offer a system-stabilising secondary reserve, also known as automatic frequency restoration reserve, for the German power grid via its offshore wind farm, Amrumbank West. The transmission…”
supportsTurbinesTotal capacity
Trade press5
[2]
evwind (relaying E.ON press release)2015-10-22◆ E.ON’s Amrumbank West offshore wind farm…
"All 80 wind turbines are connected to the network … full installed capacity of 288 megawatts now operational … the first turbine began generating electricity in May 2015 … Offshore construction began…
supportsFinal investment decisionFirst powerCommercial operationTurbinesModel
[5]
Mondaq / GÖRG Partnerschaft von Rechtsanwälten2012◆ The German Renewable Energy Act Of 2012 …
"Offshore wind parks that commission by 2017 will receive 15 ct/kWh for an initial period of 12 years" (EEG 2012 standard initial tariff model).
supportsMechanismDetail
[6]
Offshore Wind Biz2016-02-02
Press report — cited, not quoted; read it at the source link.
supportsTotal capacity
[8]
NS Energy2021
Press report — cited, not quoted; read it at the source link.
supportsModelUnit capacityFoundationfoundations
[11]
Encyclopaedic1
[10]
Wikipedia (German)2026
“Nach Antrag vom 16. Juni 2000 ... wurde der Bau und Betrieb des Windparks mit 80 Windenergieanlagen (WEA) am 9. Juni 2004 vom Bundesamt für Seeschifffahrt und Hydrographie (BSH) auf Grundlage der Seea…”
supportsConsentConsent granted