Meerwind Sud|Ost

Located 23 km northwest of Helgoland in the German North Sea EEZ (AWZ). First large German offshore wind farm financed solely by private investors.

Project timeline & ownership verified milestones on the spine · ownership from Hafrok’s transactions record

2007’08’09’10’11’12’13’14’15’16’17’18’19’20’21’22’23’24’25’26View the source for Consent grantedConsent granted May 2007 View the source for Final investment decisionFinal investment decision 2011 View the source for Offshore constructionOffshore construction Aug 2012 View the source for First powerFirst power 2014-Q4 View the source for Commercial operationCommercial operation 2014-Q4 Blackstone, Windland Energieerzeugungs GmbH — 80.0% 2008-07 JV FORMATIONBlackstone → China Three Gorges — 80.0% · €645m · closed 2016-08 2016-06 DIVESTMENTTODAYBlackstone Blackstone Blackstone exited 2016-06Windland Energieerzeugungs — 20% today Windland Energieerzeugu… Windland Energieerzeugu… 20%China Three Gorges — 80% today China Three Gorges China Three Gorges 80%Blackstone, Windland Energieerzeugungs GmbH — 80.0% Blackstone → China Three Gorges — 80.0% · €645m · closed 2016-08 80%
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 not 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 standing8180 turbines + 2 platforms expected · 1 fewer than expected — a position the survey missed
Surveyed2026-09-01from 117 satellite passes
Built2012-08 → 2014-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 taken2026-09-07Copernicus Sentinel-1 radar satellite, southbound pass
Farm covered100%the whole farm lies inside the image
Structures ringed81 confirmed · 0 not yet confirmedas 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
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
Satellite radar image over Meerwind Sud|Ost, 2026-09-07
Grid connection
from Hafrok’s substation, converter and cable registers
Offshore platforms · 2
Offshore substationUmspannwerk Meerwind ("Der dicke Malte")·33/155 kV · in service 2014 · owner WindMW GmbH (wind farm owner) — farm-owned AC platform, not TSO-owned
HVDC systemHelWin1·576 MW · ±250 kV · in service 2015-02 · shared with Nordsee Ost
Converter supplierSiemens·HelWin1 · Nordic Yards, Wismar · 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
2014201520162017201820192020202120222023202420252026developer’s stated start 2014-Q4nowHelWin1HelWin1in service 2015-02in service 2015-02Umspannwerk Meerwind ("Der dicke Malte")Umspannwerk Meerwind ("Der dicke …in service 2014in service 2014

Sources & verification

14/16 fields verified · rests on 9 sources (7 primary) · ◆ 5 documents held
VerifiedModelledSourcedInferredConventionUnverifiedNo source·Derived
Numbers are stable citation ids — grouped by source class, so they are not consecutive.
Regulator2
[1]
Bundesamt fuer Seeschifffahrt und Hydrographie (BSH)2007-05◆ Genehmigungsbescheid Offshore-Windpark M…
"Hamburg, den 16. Mai 2007 — Auf den Antrag der Meerwind Suedost GmbH & Co. Fuehn KG (Meerwind Sued) [...] werden 40 Anlagen im Bereich der deutschen ausschliesslichen Wirtschaftszone (AWZ) der Nordse…
supportsConsentConsent granted
[12]
Bundesnetzagentur — Marktstammdatenregister2026-08-23◆ Marktstammdatenregister (MaStR) offshore…
“Park row "Meerwind Süd|Ost": 80 units, 302.4 MW gross, statuses {'In Betrieb': 80}, operators ['WindMW GmbH'], commissioned 2014-09-01..2015-02-17, planned None..None.”
supportsRegister entry
Operator3
[3]
WindMW GmbH2024
“Distance to Helgoland: 23 km Northwest. [...] convenient water depth of 22 m to 26 m.”
supportsWater depthDistance from shoreCoordinates
[4]
Blackstone2011-08◆ WindMW Announces Financing Completion fo…
“a company majority owned by funds managed by Blackstone [...] Windland Energieerzeugungs GmbH, the project's initial permit holder, is the other partner.”
supportsFinal investment decision
[5]
Blackstone2014-11-10◆ Germany’s First Privately-Financed Offsh…
“Germany's First Privately-Financed Offshore Wind Farm, Meerwind Sued|Ost, Inaugurated [...] 288 megawatts across 80 offshore turbines [...] The wind farm was built in a record time of only 18 months. …”
supportsFirst powerCommercial operationTurbinesTotal capacity
Trade press3
[2]
Power Technology (GlobalData)2014
Press report — cited, not quoted; read it at the source link.
supportsOffshore constructionSite rightsTurbinesModelUnit capacity+4 more
[10]
WindMW2024◆ About WindMW
supportsowner
[11]
DTU Wind Energy / World Bank (Global Wind Atlas)2026
supportsMean wind speed
Encyclopaedic1
[9]
Wikipedia2024
“DC voltage of +-250 kV and a transmission capacity of 576 MW. [...] a total length of 130 km, of which 85 km is sea cable and 45 km is underground land cable. [...] Commissioning was completed in Janu…”
supportsStatusConnection point