Erebus
Test & Demonstration project. 49km off West Wales. WindFloat semi-submersible platforms. Max blade tip 270m. Up to 10 WTGs.
Status
Advanced Developmentlifecycle stage
LikelyHafrok delivery likelihood
Ownership
Location
United KingdomCeltic Sea
Technology
Capacity
100 MW ◆
Turbines
7 × 14 MW ◆
Foundation
Floating ◆
Site & conditions
Site rights
Seabed rights held 2023-03 ◆
Water depth
70–77 m ≈
Wind speed
10.1 m/s @ 150 m ≈
Revenue & grid
Offtake
CfD · AR7 · £216.49/MWh ◆
Grid
Secured ◆
Connection
Pembroke 132kV Substation (NGET, Direct Connection); NESO TEC … ◆
Schedule
FID
Not taken
COD · Hafrok
for registered readers
Delivery outlook modelled by Hafrok · calibrated on delivered projects
LikelyHafrok's delivery likelihood for Erebus
The developer has stated no date. Hafrok's year, the chance and the working are for registered readers.
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Project timeline & ownership verified milestones on the spine · ownership from Hafrok's transactions record
2 dated milestones on the spine, each with its source · the ownership chain 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 14 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.
Regulator3
[3]
Welsh Government2023-03-13◆ Consent granted for Wales’ first floatin…
“The Welsh Government has granted consent for Wales' first floating windfarm located 40km off the coast of Pembrokeshire. In determining the marine license and the planning consents, the Welsh Governme…”
supportsConsentSite rightsTurbinesUnit capacityFoundation+2 more
[4]
DESNZ2026-01◆ Contracts for Difference Allocation Roun…
“Erebus SM935014 Wales BLUE GEM WIND LIMITED Floating Offshore Wind 100.00 155.37 216.49 2029/30 1 4”
supportsTotal capacityMechanismStrike / priceDetail
[9]
Department for Energy Security and Net Zero2026-05-06◆ Renewable Energy Planning Database (REPD…
“REPD Q1 2026 quarterly extract — Ref ID 7861: Site Name "Erebus - Floating Offshore Wind Demonstration Project", Development Status "Awaiting Construction", Installed Capacity 100 MWelec, Operator "Si…”
supportsRegister entry
Operator7
[6]
[10]
National Energy System Operator (NESO)2026-07-21◆ NESO Transmission Entry Capacity (TEC) R…
“NESO TEC Register, edition 21 July 2026 - PRO-000471: "Erebus", Status "Scoping", MW Connected 0, Effective From 2028-07-26, Customer "Blue Gem Wind Limited"”
supportsRegister entry
[11]
Blue Gem Wind2021-12-20◆ Celtic Sea pioneer submits consent appli…
“the first-ever consent applications for floating offshore wind in Welsh waters were submitted this week. Blue Gem Wind has applied to Welsh Ministers under Section 36 of the Electricity Act 1989 for c…”
supportsoperatorConsentSite rightsConsent appliedConsent granted
[12]
National Energy System Operator (NESO)2026-08-14◆ NESO Transmission Entry Capacity (TEC) R…
“Erebus,Blue Gem Wind Limited,Pembroke 132kV Substation,,0.00,95.25,95.25,2028-07-26,Scoping,Direct Connection,NGET,Wind Offshore,a0l4L0000005inxQAA,PRO-000471,”
supportsStatusConnection point
[13]
Blue Gem Wind2026-10-22◆ Erebus by Blue Gem Wind procurement stra…
“With construction planned by the end of the decade, Erebus represents a critical stepping stone ... Businesses interested in exploring potential opportunities with Erebus by Blue Gem Wind are encourag…”
supportsCOD history
[15]
TotalEnergies2020-03-19
“The Group has signed an agreement with the developer Simply Blue Energy to acquire 80% stake in the pioneering floating wind project Erebus located in the Celtic Sea, in Wales.”
supports↳ parent
[16]
Blue Gem Wind2023-11-30
“Blue Gem Wind, the joint venture between TotalEnergies and Simply Blue Group, have shared important wind speed data with Wales' Marine Energy Test Area (META).”
supports↳ parent
Auction results1
[17]
DESNZ (gov.uk)2026-01◆ cfd-ar7-results-2026
Offshore Wind (Pot 3) cleared GBP 65.45 (2012) / 91.20 (2024): Awel y Môr A 775.00 MW; Dogger Bank South East/West Unit A 1,500.00 MW each; Norfolk Vanguard East A 1,380 / B 90 / C 75 MW; Norfolk Vang…
supportsCfD · AR7
Trade press2
[7]
[8]
Unverified import1
[1]
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