Arcadis Ost 1
Located 19km northeast of Rugen Island. Connected to 50Hertz Ostwind 2 system.
GermanyTechnology
Capacity
257 MW ◆
Turbines
27 × 9.5 MW ◆
Model
Vestas V174 9-5 ◆
Foundation
Monopile ◆
Site & conditions
Site rights
Seabed rights held ∴
Origination
BNetzA Offshore Wind Auction 2018 (transitional) · 2018 ·
Water depth
45–45 m ≈
Distance from shore
19 km ◆
Wind speed
10.0 m/s @ 150 m ≈
Revenue & grid
Offtake
Premium ◆
Grid
Secured · Dec 2023 ◆
Connection
50Hertz Ostwind 2 system; submarine cable to Lubmin substation … ◆
Schedule
FID
Jun 2021 ◆
COD
Dec 2023 ◆
Project timeline & ownership verified milestones on the spine · ownership from Hafrok’s transactions record
Origination · 2018-04
BNetzA Offshore Wind Auction 2018 (transitional)
- Awarded to
- KNK Wind GmbH (acquired by Parkwind → built as Arcadis Ost 1)
- Basis
- integrated tender
From the auction results — the round that created the project.
Corporate · 2023-03
Parkwind (Virya Energy / Colruyt Group) → Parkwind (JERA) 100%
- Stake
- 100%
- Consideration
- not disclosed
- Announced
- 2023-03
- Closed
- 2023-07
- Project stage
- under construction
JERA acquired 100% of Parkwind NV from Virya Energy for ~EUR 1.55bn equity. Platform-level acquisition covering Arcadis Ost 1 plus Belgian assets (Northwester 2, Seamade, Belwind). Arcadis Ost 1 under construction; fully connected December 2023.
Evidence
- jera.co.jp ↗
- offshoreWIND.biz — BREAKING: JERA Buys Parkwind, Belgium's Leading Offshore Wind Developer ↗ 2023-03 ◆ held
From Hafrok’s transactions record
Dashed tick marks today (13 Oct 2026). The teal diamond on the spine is origination — the seabed award or round that created the project. Every other ownership event 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: 2023→2023-12 · 2 recorded revisions · slipped +0.5 yr (first announced 2023)
Revenue & offtake the regime the project was built under
Offtake regime on record
RegimeThe farm company's FY2024 accounts state a guaranteed minimum remuneration ('garantierte Mindestvergütung') of 6.24 ct/kWh for Arcadis Ost 1, revenue coming entirely from marketing the power generated, and continued direct marketing. The project was awarded a market premium in the 2018 auction (Parkwind, June 2021), and Vattenfall was appointed its direct marketer in July 2021 (Vattenfall).
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 since2023-12
Offshore construction2022-06 → 2023-12
Construction ports
PortPort of Rønne (Bornholm) ◆turbine pre assembly
Grid connection
from Hafrok’s substation, converter and cable registers
Offshore platforms · 1
Offshore substationArcadis Ost 1 offshore substation·220 (export) kV · in service 2022 · owner Parkwind (wind farm developer) with 50Hertz Transmission — reported as jointly operated by Parkwind and the TSO
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 15 sources (11 primary) · ◆ 9 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 "Arcadis Ost I": 27 units, 257.175 MW gross, statuses {'In Betrieb': 27}, operators ['Parkwind Ost'], commissioned 2023-01-20..2023-11-26, planned None..None.”
supportsRegister entry
Operator10
[1]
Staatliches Amt für Landwirtschaft und Umwelt Vorpommern (StALU VP)2021-03-31◆ Genehmigung nach § 16 BImSchG Offshore-W…
“Stralsund, 31.03.2021 Genehmigung Nr. 1.6.1G-60.022/19-50 gemäß § 16 Bundes-Immissionsschutzgesetz – BImSchG i. V. m. Nummer 1.6.1 Anhang 1 der Verordnung über genehmigungsbedürftige Anlagen - 4. BImS…”
supportsoperatorConsentModelUnit capacityFoundation+3 more
[2]
Parkwind2021-06-15◆ JERA Nex bp - Parkwind | Arcadis Ost 1 r…
“Arcadis Ost 1 reaches financial close on global wind day published on 15/06/2021 [...] Parkwind has the pleasure of announcing that the 257MW Arcadis Ost 1 offshore wind farm reached financial close .…”
supportsFinal investment decisionTurbinesModelUnit capacityTotal capacity
[3]
[4]
[6]
Parkwind / JERA Nex bp Parkwind2024-12
“257 MW [...] 27 turbines [...] inaugurated on December 5th 2023 [...] 19 km off Rügen Island in the federal state of Mecklenburg-Western Pomerania [...] Parkwind used a floating turbine installation m…”
supportsCommercial operationTurbinesTotal capacityDistance from shoreCoordinates
[7]
Vattenfall2021-07-29◆ Vattenfall takes on direct marketing for…
“Vattenfall will be marketing the Arcadis Ost 1 offshore windfarm [...] operators of newly installed renewable generation in Germany are obliged to sell the electricity they produce directly on the mar…”
supportsMechanismDetail
[8]
50Hertz2024◆ 50hertz.com > Grid > Grid developement >…
“Ostwind 2 is the project to connect the Baltic Sea wind farms Arcadis Ost 1 and Baltic Eagle to the German extra-high voltage transmission grid [...] The connection to the German extra-high voltage tr…”
supportsStatusConnection point
[14]
Unternehmensregister2024-12-31◆ Parkwind Ost GmbH, Sassnitz - Jahresabsc…
“Die garantierte Mindestvergütung für den Offshore Windpark Arcadis Ost 1 liegt bei 6,24 €ct/kWh. [...] Die Umsatzerlöse betragen zum 31. Dezember 2024 EUR 71.914.091,00 (Vorjahr: EUR 51.705.526,13) un…”
supportsMechanismDetail
[15]
IfAÖ for Parkwind Ost GmbH (application document in the StALU Vorpommern procedure, UVP-Verbund M-V)2019-09-18◆ Beschreibung des Änderungsgegenstandes f…
“20.12.2012 KNK Wind beantragt die Errichtung von 58 Windenergieanlagen, einer Umspann- plattform und die parkinterne Verkabelung gemäß § 4 Abs. 1 ... 09.09.2014 Baugenehmigung gemäß BImSchG durch das …”
supportsConsentConsent appliedConsent granted
[16]
Parkwind2023-07-26◆ JERA Nex bp Parkwind | Acquisition of Pa…
“JERA Co., Inc. successfully closed its acquisition of 100% of the shares of Parkwind NV from Virya Energy [...] Starting as of today, Parkwind will operate as part of JERA Co., Inc.”
supports↳ parent
Trade press4
[5]
offshoreWIND.biz2023-12-05◆ Parkwind's Arcadis Ost 1 Offshore Wind F…
Press report — cited, not quoted; read it at the source link.
supportsFirst powerCommercial operationCOD historyTurbinesModel
[9]
[11]
[12]