Riffgat
Located 15 km NW of Borkum island in the southern North Sea, the first commercial offshore wind farm off the coast of Borkum.
Status
Operationallifecycle stage
Ownership
EWEEWE — 99.58% ◆
EEENOVA Energiesysteme — 0.42% ◆
Location
GermanyNorth Sea
Technology
Capacity
108 MW ◆
Turbines
30 × 3.6 MW ◆
Model
Siemens Swt 3-6-120 ◆
Foundation
Monopile ◆
Site & conditions
Site rights
Seabed rights held ∴
Water depth
18–23 m ◆
Distance from shore
15 km ◆
Wind speed
9.7 m/s @ 100 m ≈
Revenue & grid
Offtake
Premium ◆
Grid
Secured · Feb 2014 ◆
Connection
TenneT AC connection (50 km submarine cable + 30 km land cable, … ◆
Schedule
FID
Taken · date not recorded ∴
COD
1 Jun 2014 ◆
Project timeline verified milestones only — each date carries its provenance mark
Dashed tick marks today (13 Oct 2026).
Announced-COD history: 2014-Q1→2014-02 · 2 recorded revisions · held within the year (first announced 2014-Q1, latest 2014-02)
Revenue & offtake the regime the project was built under
Offtake regime on record
RegimeThe farm company's FY2015 accounts state that under EEG 2012 it receives in principle 19.0 ct/kWh until 2021, with direct marketing under the market premium model; its power was marketed through EWE TRADING GmbH. Its FY2023 and FY2024 accounts state that the farm has been outside EEG payment since 2021 and sells in "other direct marketing" at EPEX spot prices, plus guarantees of origin.
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 sourced statements and Hafrok’s registers
Installation complete
Installation · on record
StageOperational
In operation since2014-06-01
Offshore construction2012-06 → 2014-06-01
Construction ports
PortEmden / Borssum (onshore substation terminus) ◆·grid connection · quay 5500 m · draft 11.9 m
Grid connection
from Hafrok’s substation, converter and cable registers
Offshore platforms · 1
Offshore substationUmspannplattform „Riffgat" (Riffgat offshore substation platform)·owner EWE / Offshore-Windpark Riffgat GmbH. See builder_basis below — the held evidence places the platform inside the wind farm and starts TenneT's asset at its outgoing cable, but does not state ownership in words.
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
Rests on 11 sources (9 primary) · ◆ 4 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
[13]
Bundesnetzagentur — Marktstammdatenregister2026-08-23◆ Marktstammdatenregister (MaStR) offshore…
“Park row "RIFFGAT": 30 units, 113.4 MW gross, statuses {'In Betrieb': 30}, operators ['Offshore-Windpark RIFFGAT GmbH'], commissioned 2014-02-13..2014-03-02, planned None..None.”
supportsRegister entry
Operator3
[1]
EWE AG2024
“30 wind turbines manufactured by Siemens [...] 3.6 megawatt units each [...] Rotor diameter: 120 meters [...] 15 kilometers off the north seas of Borkum [...] Water depth ranges from 18 to 23 meters […”
supportsTurbinesModelUnit capacityFoundationWater depth+1 more
[14]
Bundesanzeiger2015-12-31◆ Offshore-Windpark RIFFGAT GmbH & Co. KG,…
“Der Offshore-Windpark RIFFGAT vereinnahmt auf Basis des EEG 2012 grundsätzlich eine Vergütung von 0,190 €/kWh bis zum Jahr 2021 verbunden mit Chancen einer Direktvermarktung (Marktprämienmodell). [..…”
supportsFirst powerCommercial operationMechanismDetail
[15]
Unternehmensregister2024-12-31◆ Offshore-Windpark RIFFGAT GmbH, Oldenbur…
“Die Offshore-Windpark RIFFGAT GmbH wird seit 2021 außerhalb der EEG-Vergütung vermarktet. Im Jahr 2024 befand sich die Offshore-Windpark RIFFGAT GmbH in der sonstigen Direktvermarktung und erzielte ei…”
supportsMechanismDetail
Trade press6
[2]
GlobalData / Power Technology2024
Press report — cited, not quoted; read it at the source link.
supportsTurbinesModelUnit capacityTotal capacityFoundation
[3]
offshoreWIND.biz2014-02-11
Press report — cited, not quoted; read it at the source link.
supportsFinal investment decisionFirst powerCommercial operationCOD historyStatus+2 more
[6]
Schiff & Hafen (trade press)2010-10-13◆ Baugenehmigung für Offshore-Windpark Rif…
“13. Oktober 2010 [...] Gewerbeaufsichtsamt Oldenburg hat jetzt die Baugenehmigung für den Offshore-Windpark Riffgat erteilt. [...] 30 Windanlagen mit einer Leistung von jeweils 3,6 MW [...] etwa 15 km…”
supportsConsentConsent granted
[9]
offshoreWIND.biz2012-09-07
Press report — cited, not quoted; read it at the source link.
supportsOffshore constructionSite rights
[10]
Power Technology2024
Press report — cited, not quoted; read it at the source link.
supportsowner
[12]
Encyclopaedic1
[11]