Hollandse Kust Zuid
Located 18-35km off coast between The Hague and Zandvoort. 235.8 km2 site area.
Status
Operationallifecycle stage
Ownership
Location
NetherlandsNorth Sea
Technology
Capacity
1,509 MW ◆
Turbines
139 × 11 MW ◆
Model
Siemens Gamesa SG 11-0-200 DD ◆
Foundation
Monopile ◆
Site & conditions
Site rights
Seabed rights held ∴
Origination
Hollandse Kust (zuid) Sites I & II · 2018 ·
Water depth
18.1–25.3 m ◆
Distance from shore
18 km ◆
Wind speed
9.44 m/s @ 100 m ◆
Revenue & grid
Offtake
PPA ◆
Grid
Connected ◆
Connection
Grid connection secured. Two TenneT offshore platforms (HKZ … ◆
Schedule
FID
2020 ◆
COD
2024 ◆
Project timeline & ownership verified milestones on the spine · ownership from Hafrok’s transactions record
Origination · 2018-03
Hollandse Kust (zuid) Sites I & II
- Awarded to
- Vattenfall
- Basis
- integrated tender
From the auction results — the round that created the project.
Farmdown · 2021-06
Vattenfall → BASF 49.5%
- Stake
- 49.5%
- Consideration
- €1,600m
- Implied 100% value
- €3,232m
- Implied
- €2.12m / MW
- Basis
- Equity plus construction commitment
- Announced
- 2021-06
- Closed
- 2021-09
- Project stage
- under construction
BASF acquired 49.5% of Hollandse Kust Zuid from Vattenfall to secure long-term renewable power for its Ludwigshafen chemical complex through a 25-year corporate PPA. Announced 24 June 2021; completed 1 September 2021. Vattenfall's annual report puts the purchase price at EUR 0.3bn and BASF's total commitment at about EUR 1.6bn, including its contribution to fund the construction. Zero-subsidy project; the grid operator TenneT owns the offshore substations. Capacity 1,523 MW.
Evidence
- basf.com ↗
- offshoreWIND.biz — Chemicals Giant Buys Into 1.5 GW Hollandse Kust Zuid ↗ 2021-06 ◆ held
- Vattenfall — Vattenfall ↗ 2021 ◆ held
- BASF — Vattenfall to sell 49.5% of Hollandse Kust Zuid to BASF ↗ 2021-06-24 ◆ held
From Hafrok’s transactions record
Secondary trade · 2021-12
BASF → Allianz Capital Partners 25.2%
- Stake
- 25.2%
- Consideration
- not disclosed
- Announced
- 2021-12
- Closed
- 2022-Q1
- Project stage
- under construction
BASF sold 25.2% of its 49.5% stake (more than half of its share) to Allianz Capital Partners on behalf of Allianz Insurance Companies, marking Allianz's first offshore wind and first equity renewables investment in the Netherlands. Post-closing structure: Vattenfall 50.5%, BASF 24.3%, Allianz 25.2%. BASF retained the power off-take from the entire original 49.5% share under its 25-year fixed-price corporate PPA. Deal value not disclosed by either party. Announced 6 December 2021; closed Q1 2022.
Evidence
- basf.com — BASF to sell 25.2% of the offshore wind farm Hollandse Kust Zuid to Allianz ↗ 2021-12 ◆ 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→2024 · 2 recorded revisions · slipped +1.0 yr (first announced 2023)
Revenue & offtake the regime the project was built under
Offtake regime on record
RegimeSubsidy-free (zero-subsidy bid), PPA with BASF; Vattenfall also stated on its Q1 2021 earnings call (29 Apr 2021) that it had signed a 15-year PPA with Air Liquide relating to Hollandse Kust Zuid.
InstrumentPPA
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 since2024
Grid connection
from Hafrok’s substation, converter and cable registers
Offshore platforms · 2
Offshore substationHollandse Kust (zuid) Alpha·66/220 kV · in service 2022 · owner TenneT (Dutch TSO)
Offshore substationHollandse Kust (zuid) Beta·66/220 kV · in service 2022 · owner TenneT (Dutch 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 14 sources (16 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.
Regulator2
[7]
Netherlands Enterprise Agency (RVO)2018-10◆ Hollandse Kust (zuid) III & IV Project a…
supportsFoundationMean wind speedWater depthDistance from shoreCoordinates
[14]
RVO — Bureau Energieprojecten (energietransitie.nl)2026-08-23◆ Dutch Bureau Energieprojecten register (…
“Listing row "Net op zee - Hollandse Kust (zuid)" (key net-op-zee-hollandse-kust-zuid); offshore docket page text hash bde22aa66f995d18… (6139 chars).”
supportsRegister entry
Operator8
[1]
Vattenfall◆ Power plants: Hollandse Kust Zuid - Vatt…
“Electricity Capacity: 1,509 MWe. Turbines: 139.”
supportsTurbinesTotal capacityMechanismDetailStatus+1 more
[4]
Vattenfall2023-09-29◆ Offshore wind farm Hollandse Kust Zuid i…
“Dutch King Willem-Alexander officially inaugurated wind farm Hollandse Kust Zuid (29 September 2023). The wind farm is expected to be fully operational in 2024.”
supportsCOD history
[5]
Vattenfall2023-06-19◆ The last turbine for Hollandse Kust Zuid…
“Almost two years after construction of Hollandse Kust Zuid began, the last turbine of the offshore wind farm has been installed.”
supportsOnshore construction
[9]
[10]
Vattenfall
“Het windpark is in september 2023 geopend door koning Willem-Alexander ... In bedrijf: september 2023”
supportsCommercial operation
[11]
Ministerie van Economische Zaken (Staatscourant)2016-12-08
“Kavelbesluit I windenergiegebied Hollandse Kust (zuid) ... 's-Gravenhage, 8 december 2016 ... De Minister van Economische Zaken, H.G.J. Kamp”
supportsConsentConsent appliedConsent granted
[13]
Vattenfall2021-04-29◆ Vattenfall — 210429 q1 transcript
“And we mentioned one of them, today, a 15 year one with Air Liquide in relation to Hollandse Kust Zuid”
supportsMechanismDetail
[20]
Staatscourant (Koninkrijk der Nederlanden)2016-08-18◆ Staatscourant 2016-43343: Kennisgeving o…
“Van vrijdag 19 augustus 2016 tot en met donderdag 29 september 2016 liggen de ontwerpkavelbesluiten ter inzage voor de kavels I en II”
supportsConsentConsent appliedConsent granted
OEM1
[2]
Siemens Gamesa2019-11-27◆ Vattenfall’s Hollandse Kust Zuid 1&2 win…
“The newest version of Siemens Gamesa offshore wind turbine - launched just a day ago - can reach 11 MW capacity under specific site conditions and it is the perfect fit for the world's first subsidy-f…”
supportsModelUnit capacity
Trade press3
[6]
offshoreWIND.biz2022-08-02
Press report — cited, not quoted; read it at the source link.
supportsFirst power
[8]
NS Energy2020-06-05
Press report — cited, not quoted; read it at the source link.
supportsFinal investment decision
[12]
Seaway72026-07-20◆ Hollandse Kust Zuid Offshore Wind Farm -…
“Hollandse Kust Zuid ... fully operational since 2024”
supportsCommercial operation