Floatgen
Located at SEM-REV test site off Le Croisic, Brittany. Demonstrated BW Ideol's patented Damping Pool concrete float technology.
FranceTechnology
Capacity
2 MW ◆
Turbines
1 × 2 MW ◆
Model
Vestas V80 2-0 ◆
Foundation
Floating ◆
Site & conditions
Site rights
Seabed rights held ∴
Water depth
33–33 m ◆
Distance from shore
22 km ◆
Wind speed
8.5 m/s @ 100 m ≈
Revenue & grid
Offtake
Other ◆
Grid
Secured · 2018-09-18 ◆
Connection
SEM-REV test site export cable (Centrale Nantes) ◆
Schedule
FID
Taken · date not recorded ∴
COD
18 Sep 2018 ◆
Project timeline verified milestones only — each date carries its provenance mark
Dashed tick marks today (9 Sep 2026).
Announced-COD history: 2018-Q3→2018-09-18 · 2 recorded revisions · held (announced 2018-Q3, unchanged)
Revenue & offtake the regime the project was built under
Offtake regime on record
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
Installation complete
not yet surveyed by satellite; the built farm can be, on request
Installation · on record
StageOperational
In operation since2018-09-18
Offshore construction2018-04 → 2018-09-18
Construction ports
PortSaint-Nazaire ◆·assembly · quay 780 m · crane 600 t · draft 14 m
Sources & verification
17/18 fields verified · rests on 9 sources (6 primary) · ◆ 5 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.
Operator6
[1]
BW Ideol2024◆ Floating platform | Offshore wind power
“2MW capacity with Vestas V80 turbine. BW Ideol's patented Damping Pool® floating foundation (concrete barge design), 36 meters wide, 7.5 meter draught, 6 synthetic fiber (nylon) mooring lines. Constru…”
supportsTurbinesModelUnit capacityTotal capacityFoundation
[2]
Centrale Nantes / SEM-REV2024◆ FLOATGEN - SEM-REV
“Power output: 2 MW. Model: Vestas V80. Rotor diameter: 80 meters. Floating concrete structure in square ring shape, 36 meters wide, 9.5 meters height (7.5 meter draft). Features Ideol's Damping Pool® …”
supportsTurbinesModelUnit capacityTotal capacityFoundation+5 more
[3]
BW Ideol2018-09-18◆ Floating wind demonstrator | Ideol
“The connection of the electricity export cable and a final series of tests carried out in recent days enabled the Floatgen wind turbine, which is installed 22 kilometres off Le Croisic (Loire-Atlantiq…”
supportsFinal investment decisionFirst powerCommercial operationCOD history
[5]
BW Ideol2016-06◆ The construction of Floatgen is official…
“Construction will get off the ground in September in Saint-Nazaire Port, where Bouygues Travaux Publics will build the floating foundation. ... The construction of Floatgen is officially underway ... …”
supportsOnshore constructionOffshore constructionSite rightsassembly
[8]
[10]
Centrale Nantes / eoliennesenmer.fr (French state EMR portal)2021-11
“Un suivi obligatoire dans le cadre des exigences d'autorisation d'occupation du domaine public maritime (Arrêté n°2014/BPUP/001 du 13 janvier 2014) et de l'arrêté inter-préfectoral portant d'autorisat…”
supportsConsent
Trade press3
[7]
[9]
[11]