Gwynt Glas
Crown Estate Round 5. EDF-ESB joint venture. Off South Wales/SW England. Part of 4.5GW Celtic Sea floating program.
Status
Early Developmentlifecycle stage
PossibleHafrok delivery likelihood
Ownership
Location
United KingdomCeltic Sea
Technology
Capacity
1,500 MW ◆
Turbines
—
Foundation
Floating ◆
Site & conditions
Site rights
Seabed rights held ∴
Origination
Crown Estate Round 5 · 2025 ·
Water depth
70–83 m ≈
Distance from shore
40 km ◆
Wind speed
10.1 m/s @ 150 m ≈
Revenue & grid
Offtake
—
Grid
Secured ◆
Connection
Alverdiscott 400kV Substation ◆
Schedule
FID
Not taken
COD · guidance
2037 ⌁
COD · Hafrok
for registered readers
Delivery outlook modelled by Hafrok · calibrated on delivered projects
PossibleHafrok's delivery likelihood for Gwynt Glas
The developer says 2037. Hafrok's year agrees with that date; the year, the chance and the working are for registered readers.
Free for registered readers in early access · register below ↓
Project timeline & ownership verified milestones on the spine · ownership from Hafrok's transactions record
the dated milestones on the spine, each with its source · 3 recorded ownership deals from Hafrok's transactions record · the developer's announced-COD history
For registered readers · register below ↓
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 12 sources (9 primary) · ◆ 8 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
[12]
The Planning Inspectorate (PINS)2026-08-23◆ PINS national infrastructure application…
“Project reference EN0110036: "Gwynt Glas Offshore Wind Farm"; applicant "Gwynt Glas Offshore Wind Farm Limited"; Stage "Pre-application"; anticipated submission September 2028.”
supportsRegister entry
Operator8
[1]
The Crown Estate2025-06-19
“19 June 2025: Equinor and Gwynt Glas (EDF Renewables/ESB joint venture) selected as preferred bidders for two sites”
supportsConsent
[2]
The Crown Estate2025-10-07◆ Celtic Sea Round 5 - Equinor + Gwynt Gla…
“Equinor and Gwynt Glas enter agreements for lease for floating wind farms [signed 7 October 2025]. Both projects aim to be operational by the mid-2030s and could support over 5,000 new jobs across the…”
supportsCommercial operation
[3]
EDF Renewables UK2025-06-18◆ Gwynt Glas secures site in The Crown Est…
“EDF Renewables UK and ESB have formed a 50:50 joint venture company to develop Gwynt Glas together. The project has the potential to generate up to 1,500 MW of clean renewable energy. Gwynt Glas is a …”
supportsTotal capacityFoundation
[4]
Gwynt Glas (EDF Renewables UK / ESB JV)2026-06
“EDF power solutions and ESB have entered into a partnership to develop Gwynt Glas Floating Offshore Wind Farm. DP Energy serves as exclusive development partner.”
supportsFoundation
[5]
NESO2026-06-12◆ NESO Transmission Entry Capacity (TEC) R…
“Gwynt Glas Offshore Wind Farm 2,GWYNT GLAS OFFSHORE WIND FARM LIMITED, Alverdiscott 400kV Substation,,0,1000,1000,06/12/2036,Scoping, Direct Connection,NGET,Wind Offshore,a1f8e0000008T5uAAE,PRO-002480…”
supportsStatusConnection point
[8]
Sumitomo Corporation2026-08-10◆ Sumitomo Corporation joins Gwynt Glas fl…
“Sumitomo Corporation (Head Office: Chiyoda-ku, Tokyo; Representative Director, President and CEO: Shingo Ueno) is delighted to announce the acquisition of a 33.3% equity interest in the Gwynt Glas Off…”
supportsownerCommercial operationCOD history
[9]
Gwynt Glas Offshore Wind Farm2026-06-26◆ EIA Scoping Report submitted for propose…
“Gwynt Glas Offshore Wind Farm, a pioneering project in the Celtic Sea, has submitted its Environmental Impact Assessment (EIA) Scoping Report to the Planning Inspectorate (PINS) Natural Resources Wale…”
supportsStatus note
[11]
Gwynt Glas Offshore Wind Farm2025-10-07◆ Gwynt glas signs agreement for lease wit…
“The developable area identified by The Crown Estate lies in Welsh waters, located ~40km at the closest point to shore.”
supportsDistance from shore
Auction pipeline1
[13]
DESNZ (gov.uk)2026◆ govuk-cfd-ar8
gov.uk AR8 collection — Allocation Framework, statutory framework and CIB documents published ahead of the round.
supportsCfD Allocation Round 8
Trade press2
[6]
[7]
Early access