Iles d'Yeu et de Noirmoutier

AO2 (second French offshore call for tenders) project awarded June 2014. Fourth offshore wind farm commissioned in France.

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

2014’15’16’17’18’19’20’21’22’23’24’25’26France Offshore Wind Round 2 (AO2) — awarded to Engie + EDP Renewables + Banque des TerritoiresFrance Offshore Wind Round 2 (AO2) May 2014 · auction recordView the sources for Consent grantedConsent granted Oct 2018 View the source for Final investment decisionFinal investment decision Apr 2023 View the source for Onshore constructionOnshore construction 2023-Q3 View the source for Offshore constructionOffshore construction 2023-Q3 View the source for First powerFirst power Jun 2025 View the source for Commercial operationCommercial operation Apr 2026 France Offshore Wind Round 2 (AO2) — awarded to Engie + EDP Renewables + Banque des Territoires 2014-05 ORIGINATIONTransfer(s) not in Hafrok's record — shown as a gap, never guessed. UNRECORDEDEDP Renewables → Sumitomo Corporation — 13.5% · €21m 2018-12 FARMDOWNOcean Winds → Allianz Global Investors — 20.25% · €200m · closed 2025-12 2025-10 FARMDOWNTransfer(s) not in Hafrok's record — shown as a gap, never guessed. UNRECORDEDTransfer(s) not in Hafrok's record — shown as a gap, never guessed. UNRECORDEDTODAYEngie + EDP Renewables + Banque des Territoires Engie + EDP Renewables … Engie + EDP Renewables … not among today’s recorded owners — no sale recordedEDP Renewables EDP Renewables EDP Renewables exited 2018-12Sumitomo Corporation — 29.5% today Sumitomo Corporation Sumitomo Corporation 29.5%Ocean Winds — 40% today Ocean Winds Ocean Winds 40%Allianz Global Investors — 20.25% today Allianz Global Investors Allianz Global Investors 20.25%Banque des Territoires — 9.75% today Banque des Territoires Banque des Territoires 9.75%Vendee Energie — 0.5% today Vendee Energie Vendee Energie 0.5%France Offshore Wind Round 2 (AO2) — awarded to Engie + EDP Renewables + Banque des Territoires Transfer(s) not in Hafrok's record — shown as a gap, never guessed. Transfer(s) not in Hafrok's record — shown as a gap, never guessed. EDP Renewables → Sumitomo Corporation — 13.5% · €21m 13.5%Ocean Winds → Allianz Global Investors — 20.25% · €200m · closed 2025-12 20.25%Transfer(s) not in Hafrok's record — shown as a gap, never guessed. Transfer(s) not in Hafrok's record — shown as a gap, never guessed.
Dashed tick marks today (9 Sep 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: 20252026-04 · 2 recorded revisions · slipped +0.8 yr (first announced 2025)

Revenue & offtake contract duration and price levels · money of the day

496 MW contracted — tender award
Tender award · France Offshore Wind Round 2 (AO2)
Price€137/MWh ·Capacity496 MWAwardedMay 2014
Term20 yrs

Installation how the build is going · from satellite counts and Hafrok’s registers

Satellite installation tracker
counted from satellite radar images · a structure standing in the sea on a given date, not a turbine producing power · a guide, not a sourced fact
Installation · counted from satellite
Foundations61 of 61100% · first seen 2024-06-08
Turbines61 of 61100% · first seen 2024-06-16
Latest count2026-08-30from 482 satellite passes · 1 substation platform left out so the counts compare with the turbine number · anything first seen in the last 60 days is not yet confirmed
Hafrok counts foundations and turbines from satellite radar images (≈): a structure is counted once it is seen standing in the sea, which is not the same as producing power. A structure first seen in the last 60 days is not yet confirmed, because on a single image a freshly set foundation and a ship holding position look alike. Substation platforms are left out so the counts compare with the number of turbines. Rows marked with a dot (·) come from Hafrok’s own registers; a supplier or contract appears only where a source states it — everything else reads “not recorded”, never guessed.
Structures standing over time · count
strong line = confirmed · light line = seen in the last 60 days, not yet confirmed · the chart counts every structure (61 turbines + 1 platform); the table counts turbines only
foundationsturbines up (a substation top being set in place counts here too)
20406062 planned (turbines and platforms)latest count 2026-08-30foundations — running total, confirmedJun 2024 — 4 this month · 4 in totalJul 2024 — 7 this month · 11 in totalAug 2024 — 9 this month · 20 in totalSep 2024 — 8 this month · 28 in totalOct 2024 — 3 this month · 31 in totalNov 2024 — 6 this month · 37 in totalDec 2024 — 3 this month · 40 in totalJan 2025 — 2 this month · 42 in totalFeb 2025 — 2 this month · 44 in totalMar 2025 — 3 this month · 47 in totalApr 2025 — 5 this month · 52 in totalMay 2025 — 7 this month · 59 in totalJun 2025 — 3 this month · 62 in totalJul 2025 — 0 this month · 62 in totalAug 2025 — 0 this month · 62 in totalSep 2025 — 0 this month · 62 in totalOct 2025 — 0 this month · 62 in totalNov 2025 — 0 this month · 62 in totalDec 2025 — 0 this month · 62 in totalFeb 2026 — 0 this month · 62 in totalMar 2026 — 0 this month · 62 in totalApr 2026 — 0 this month · 62 in totalturbines up — running total, confirmedJun 2024 — 1 this month · 1 in totalJul 2024 — 0 this month · 1 in totalAug 2024 — 0 this month · 1 in totalSep 2024 — 0 this month · 1 in totalOct 2024 — 0 this month · 1 in totalNov 2024 — 0 this month · 1 in totalDec 2024 — 1 this month · 2 in totalJan 2025 — 0 this month · 2 in totalFeb 2025 — 0 this month · 2 in totalMar 2025 — 0 this month · 2 in totalApr 2025 — 1 this month · 3 in totalMay 2025 — 5 this month · 8 in totalJun 2025 — 9 this month · 17 in totalJul 2025 — 7 this month · 24 in totalAug 2025 — 11 this month · 35 in totalSep 2025 — 7 this month · 42 in totalOct 2025 — 4 this month · 46 in totalNov 2025 — 3 this month · 49 in totalDec 2025 — 3 this month · 52 in totalFeb 2026 — 1 this month · 53 in totalMar 2026 — 2 this month · 55 in totalApr 2026 — 7 this month · 62 in total62 foundations62 turbines upJun 2024Sep 2024Dec 2024Mar 2025Jun 2025Sep 2025Dec 2025Apr 2026
Satellite image
Image taken2026-09-05Copernicus Sentinel-1 radar satellite, northbound pass
Farm covered100%the whole farm lies inside the image
Structures ringed62 confirmed · 0 not yet confirmedas counted on 2026-08-30 · the image is newer than the count, so a bright spot without a ring may be a structure not yet counted
Construction ports
PortNantes-Saint Nazaire Port ·marshalling · quay 780 m · crane 600 t · draft 14 m
PortPort of Brest ·pre-assembly · quay 400 m · crane 200 t · draft 10.6 m
Contains modified Copernicus Sentinel data 2026, processed by ESA and by Microsoft Planetary Computer.
Latest satellite radar image · 2026-09-05
a radar picture, not a photograph: the sea is dark, steel is bright · black is beyond the edge of the image
confirmed structure (62)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 Iles d'Yeu et de Noirmoutier, 2026-09-05
Grid connection
from Hafrok’s substation, converter and cable registers
Offshore platforms · 1
Offshore substationIles d'Yeu et de Noirmoutier Offshore Substation·in service 2025 · owner Ocean Winds (ENGIE / EDPR joint venture) — the producer, NOT RTE
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
20252026developer’s stated start 2025-Q4nowIles d'Yeu et de Noirmoutier Offshore SubstationIles d'Yeu et de Noirmoutier Offs…in service 2025in service 2025

Sources & verification

17/18 fields verified · rests on 18 sources (10 primary) · ◆ 7 documents held
VerifiedModelledSourcedInferredConventionUnverifiedNo source·Derived
Numbers are stable citation ids — grouped by source class, so they are not consecutive.
Regulator1
[4]
Prefecture of Vendee (French State)2018-12
“AP n18-DDTM85-721 (October 29, 2018) marine usage authorization. AP n18-DDTM85-789 (December 19, 2018) environmental authorization with detailed annexes. AP n18-DDTM85-722 and AP n18-DDTM85-723 (Octob…”
supportsConsentConsent granted
Operator8
[1]
Ocean Winds2026◆ Yeu-Noirmoutier - Ocean Winds
“488 MW annual power generation equivalent to serving approximately 800,000 people (roughly the Vendee department's population). 95% of Tier 1 suppliers based in Europe and over 50% sourced directly fr…”
supportsBackground
[2]
Eoliennes en Mer Iles d'Yeu et de Noirmoutier (EMYN)2026
“61 eoliennes d'une puissance de 8 MW chacune pour une puissance totale de 496 MW. Situe a 11,7 km de l'ile d'Yeu et 16,5 km de l'ile de Noirmoutier.”
supportsTurbinesUnit capacityTotal capacityDistance from shore
[3]
Eoliennes en Mer Iles d'Yeu et de Noirmoutier (EMYN)2026
“State tender (appel d'offres) awarded June 2014. Developer: Eoliennes en Mer iles d'Yeu et de Noirmoutier (EMYN). Public debate: April 24 to July 31, 2015. Public inquiry: April 4 to May 23, 2018. Con…”
supportsBackground
[5]
Ocean Winds2023-04-06◆ Iles d’Yeu and Noirmoutier offshore wind…
“FID Date April 6, 2023. Administrative authorisations were obtained in 2018; appeals lifted early 2023. Construction start Summer 2023 (offshore operations). Investment approximately 2.5 billion EUR. …”
supportsConsentFinal investment decisionOnshore constructionOffshore constructionStatus+2 more
[6]
ENGIE2023-04-06
“FID Date April 6, 2023. Capacity approximately 500 MW. Construction start April 2023. Ownership Ocean Winds (60.25%), Sumitomo Corporation (29.5%), Caisse des Depots et des Consignations (9.75%), Vend…”
supportsMechanismStrike / priceDetail
[9]
Ocean Winds2026-04-29◆ Ocean Winds completes final turbine inst…
“Final Turbine Installation Date 29 April 2026. Full Operational Status achieved as of 29 April 2026 (transitioned from construction phase). Turbine Count 61 turbines. Progressive Operation Start June …”
supportsCommercial operationCOD history
[13]
EDP2025-12-17
“Ocean Winds has completed the sale of a 20.25% stake in the iles d'Yeu & Noirmoutier 500 MW offshore wind farm to Allianz Global Investors. Updated shareholder structure: OW (40%), Allianz (20.25%), S…”
supportsMechanismStrike / priceDetail
[18]
DGEC — Ministère de la Transition écologique (eoliennesenmer.fr)2026-08-25◆ French Eoliennes en mer register (DGEC),…
“Register node 860 (node--type-project) at /facades-maritimes-en-france/facade-nord-atlantique-manche-ouest/iles-d-yeu-et-noirmoutier — title "Iles d'Yeu et de Noirmoutier"; page text 2521 chars, hash …”
supportsRegister entry
Auction results1
[19]
CRE (Commission de regulation de l'energie) / DGEC2013◆ fr-ao2-cahier-des-charges
AO2 cahier des charges (18 Feb 2013): Lot 1 Le Treport 500 MW, Lot 2 Yeu-Noirmoutier 500 MW.
supportsTender award · France Offshore Wind Round 2 (AO2)
Trade press8
[7]
offshoreWIND.biz2025-05-12
Press report — cited, not quoted; read it at the source link.
supportsModelFoundation
[8]
offshoreWIND.biz2025-06-04
Press report — cited, not quoted; read it at the source link.
supportsFirst power
[10]
Actualites News Environnement2026
“Le 29 avril 2026, les 61 turbines du parc des iles d'Yeu et de Noirmoutier sont entrees en service. 496 MW installes. Le contrat d'obligation d'achat conclu avec EDF s'etablit a 167 EUR/MWh, apres la …”
supportsTotal capacityMechanismStrike / priceDetail
[11]
Energies de la Mer2019-05-02
“AO 02 (Second Call for Tenders) Won in June 2014. Capacity 496 MW. Turbines 61 Siemens Gamesa units at 8 MW each. Foundation Type Monopile. Location 11.7 km from Port-Joinville; 16.5 km from L'Herbaud…”
supportsWater depth
[12]
Energies de la Mer2025-01-20
“Port of Saint-Nazaire pre-assembly site for wind turbine components and storage hub before offshore installation. Received blades and nacelles from Siemens Gamesa (cargo ship Rotra Vente, January 16 2…”
supportsmarshallingpre-assembly
[15]
The Wind Power2026-05◆ Noirmoutier (France) - Wind farms - Onli…
Press report — cited, not quoted; read it at the source link.
supportsCoordinates
[16]
EDPR2025-10◆ Ocean Winds sells minority stake in its …
supportsowner
[17]
DTU Wind Energy / World Bank (Global Wind Atlas)2026
supportsMean wind speed