DanTysk
Located 70km west of Sylt at German-Danish EEZ border. JV Vattenfall/SWM.
Status
Operationallifecycle stage
Ownership
Vattenfall — 51% ◆
Stadtwerke München — 49% ◆Location
GermanyNorth Sea
Technology
Capacity
288 MW ◆
Turbines
80 × 3.6 MW ◆
Model
Siemens Swt 3-6-120 ◆
Foundation
Monopile ◆
Site & conditions
Site rights
Seabed rights held ∴
Water depth
21–32 m ◆
Distance from shore
70 km ◆
Wind speed
10.0 m/s @ 100 m ≈
Revenue & grid
Offtake
FiT ◆
Grid
Secured · 2015-04 ◆
Connection
TenneT SylWin1 HVDC (165 km submarine cable to Büsum + 45 km … ◆
Schedule
FID
Taken · date not recorded ∴
COD
Apr 2015 ◆
Project timeline & ownership verified milestones on the spine · ownership from Hafrok’s transactions record
JV entry · 2010-07
Vattenfall → Stadtwerke München 49%
- Stake
- 49%
- Consideration
- not disclosed
- Announced
- 2010-07
- Project stage
- early development
Vattenfall sold 49% to Stadtwerke München (SWM) forming 51/49 JV. First Vattenfall/SWM co-development. Consideration undisclosed; project cost exceeded EUR 1bn.
Evidence
- group.vattenfall.com ↗
- offshoreWIND.biz — Vattenfall and Munich utility intend to build joint offshore wind farm in the German North Sea ↗ 2010-07-20 ◆ held
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.
Announced-COD history: 2015-Q2→2015-04 · 2 recorded revisions · held (announced 2015-Q2, unchanged)
Revenue & offtake the regime the project was built under
Offtake regime on record
RegimeEEG 2012 standard model: 15.0 ct/kWh initial tariff for 12 years from commissioning (for offshore wind parks commissioning by 2017). DanTysk commissioned 2015. Tariff extended by bonus months as site is >12 NM offshore (Sylt distance ~70 km) and in water depth >20 m.
InstrumentFiT
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 118 satellite passes
Built2013-02 → 2015-04offshore 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 covered97%≈a ring on black is a structure this pass could not see, not a mistake
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
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 substationDanTysk offshore substation·33/155 kV · in service 2013 · owner Vattenfall / Stadtwerke Muenchen (wind farm owners) — farm-owned, not TSO-owned
HVDC systemSylWin1·864 MW · ±320 kV · in service 2015-04 · shared with Butendiek, Sandbank
Converter supplierSiemens·SylWin1 · Nordic Yards (Warnowwerft, Rostock) · 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
16/18 fields verified · rests on 9 sources (4 primary) · ◆ 8 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.
Regulator2
[1]
Bundesamt fuer Seeschifffahrt und Hydrographie (BSH)2005-08◆ Genehmigungsbescheid Offshore-Windpark D…
“Hamburg, den 23.08.2005 — Auf den Antrag der Gesellschaft fuer Energie und Oekologie mbH [...] werden Errichtung und Betrieb von 80 Windenergieanlagen (WEA) einschliesslich Nebenanlagen [...] genehmig…”
supportsConsentTurbinesCoordinatesConsent granted
[9]
Bundesnetzagentur — Marktstammdatenregister2026-08-23◆ Marktstammdatenregister (MaStR) offshore…
“Park row "OWP DanTysk": 80 units, 302.4 MW gross, statuses {'In Betrieb': 80}, operators ['DanTysk Sandbank Offshore Wind GmbH ＆ Co.KG'], commissioned 2014-12-02..2015-03-26, planned None..None.”
supportsRegister entry
Operator2
[2]
Vattenfall AB2013-02◆ Vattenfall start bouw van windpark DanTy…
“7 februari 2013 — Vattenfall, het moederbedrijf van Nuon, is gestart met de bouw van DanTysk, een groot windpark van 288MW op zee. Het windpark DanTysk ligt op de grens van de Duitse en Deense economi…”
supportsOnshore constructionOffshore constructionSite rightsTurbinesTotal capacity+1 more
[3]
Vattenfall AB2015-04-30◆ DanTysk offshore wind farm formally open…
“30 April 2015 — Located 70 kilometres west of Sylt Island, the DanTysk offshore wind farm is the first infrastructure project jointly implemented by Vattenfall and SWM as part of the energy transition…”
supportsCommercial operationCOD historyTurbinesModelUnit capacity+6 more
Trade press5
[4]
Offshore Wind Biz2014-12-03◆ DanTysk Starts to Power Germany | Offsho…
Press report — cited, not quoted; read it at the source link.
supportsFirst power
[5]
Offshore Wind Biz2012-03-19◆ Germany: Vattenfall Starts Construction …
Press report — cited, not quoted; read it at the source link.
supportsFinal investment decisionOnshore constructionOffshore constructionSite rights
[6]
Offshore Wind Biz2010-07-20◆ Vattenfall and Munich utility intend to …
Press report — cited, not quoted; read it at the source link.
supportsoperatorco-owner
[7]
Mondaq (legal commentary)2012◆ 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. Those that begin operating in 2019, however, will receive only 12.97 ct/kWh.”
supportsMechanismDetail
[8]