Iles d'Yeu et de Noirmoutier
AO2 (second French offshore call for tenders) project awarded June 2014. Fourth offshore wind farm commissioned in France.
Status
Operationallifecycle stage
Ownership
Ocean Winds — 40% ◆
Sumitomo Corporation — 29.5% ◆AGAllianz Global Investors — 20.25% ◆
Banque des Territoires — 9.75% ◆VEVendee Energie — 0.5% ◆
Location
FranceNortheast Atlantic
Technology
Capacity
496 MW ◆
Turbines
61 × 8 MW ◆
Model
Siemens Gamesa SG 8-0-167 DD ◆
Foundation
Monopile ◆
Site & conditions
Site rights
Seabed rights held ∴
Origination
France Offshore Wind Round 2 (AO2) · 2014 ·
Water depth
19–36 m ◆
Distance from shore
11.6 km ◆
Wind speed
8.4 m/s @ 100 m ≈
Revenue & grid
Offtake
FiT · AO2 · €167/MWh ◆
Grid
Secured · 2023 ◆
Connection
RTE (Reseau de Transport d'Electricite) double submarine export … ◆
Schedule
FID
Apr 2023 ◆
COD
Apr 2026 ◆
Project timeline & ownership verified milestones on the spine · ownership from Hafrok's transactions record
6 dated milestones on the spine, each with its source · 6 recorded ownership deals from Hafrok's transactions record · the developer's announced-COD history
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Revenue & offtake contract terms, price levels and the route to market
the contract terms on record · price over time in money of the day · the routes to market and the next visible round
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Installation how the build is going · from sourced statements and Hafrok's registers
construction status and turbines standing · vessel and port contracts · the grid connection and whether it is ready in time
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Sources & verification
Rests on 19 sources (11 primary) · ◆ 10 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
[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
Operator9
[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
[19]
Ocean Winds2024-06◆ First monopile of the iles dyeu and noir…
“Stored at the Port of La Rochelle, the monopiles will be transported by DEME’s ship “Innovation” to the offshore construction site.”
supportsmarshallingpre-assemblyfoundations
Auction results1
[20]
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◆ First Siemens Gamesa Turbine Up at Îles …
Press report — cited, not quoted; read it at the source link.
supportsModelFoundation
[8]
offshoreWIND.biz2025-06-04◆ Îles d’Yeu and Noirmoutier Offshore Wind…
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]
[17]
Early access