Hornsea Two
Located 89km off Yorkshire coast. 1320 MW grid connection capacity (165 x 8 MW turbines).
Status
Operationallifecycle stage
Ownership
Location
United KingdomNorth Sea
Technology
Capacity
1,320 MW ◆
Turbines
165 × 8.4 MW ◆
Model
Siemens Gamesa SG 8-0-167 DD ◆
Foundation
Monopile ◆
Site & conditions
Site rights
Seabed rights held ∴
Origination
Crown Estate Round 3 · 2010 ·
Water depth
25–67 m ◆
Distance from shore
89 km ◆
Wind speed
10.0 m/s @ 100 m ≈
Revenue & grid
Offtake
CfD · AR2 ◆
Grid
Connected ◆
Connection
Grid connection secured. North Killingholme 400kV substation. … ◆
Schedule
FID
2017 ◆
COD
2022-Q3 ◆
Project timeline & ownership verified milestones on the spine · ownership from Hafrok’s transactions record
Origination · 2010-01
Crown Estate Round 3
- Awarded to
- SMart Wind (Mainstream Renewable Power + Siemens Project Ventures)
- Zone
- Hornsea zone
- Basis
- seabed award
From the auction results — the round that created the project.
Farmdown · 2022-03
Ørsted → AXA IM Alts / Credit Agricole Assurances 50%
- Stake
- 50%
- Consideration
- €1,815m
- Implied 100% value
- €3,630m
- Implied
- €2.62m / MW
- Announced
- 2022-03
- Closed
- 2023-06
- Project stage
- operational
50% stake sold to a consortium of AXA IM Alts and Credit Agricole Assurances (each 25%); Ørsted retained 50% and operational control. Stake value ~GBP 1.6bn (EUR ~1,815m at GBP/EUR ~1.15); implied 100% enterprise value ~GBP 3bn / EUR ~3.6bn.
Evidence
- orsted.com ↗
- offshoreWIND.biz — Ørsted Divesting Half of Hornsea Two for EUR 3.6 Billion ↗ 2023-02 ◆ held
From Hafrok’s transactions record
Portfolio sale · 2024-10
Ørsted → Brookfield 12.45%
- Stake
- 12.45%
- Consideration
- not disclosed
- Announced
- 2024-10
- Closed
- 2024-12
- Project stage
- operational
Hornsea 2 was the world's largest operational offshore wind farm at commissioning. See Hornsea 1 record for full transaction context and CRITIC NOTE on deal value allocation. Combined portfolio = Hornsea 1 (1,218 MW) + Hornsea 2 (1,320 MW) + Walney Extension (659 MW) + Burbo Bank Extension (258 MW) = 3,455 MW combined. All four assets are CfD-contracted and fully operational. Ørsted retains 37.55%. Data confidence: HIGH.
Evidence
- Ørsted A/S — Orsted divests share of four UK offshore wind farms to Brookfield ↗ 2024-10 ◆ held
- bep.brookfield.com — Brookfield Acquires Share of Four UK Offshore Wind Farms from Ørsted ↗ 2024-10 ◆ held
- Ørsted A/S — Ørsted completes divestment of share of four UK offshore wind farms ↗ 2024-12 ◆ held
From Hafrok’s transactions record
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: 2023→2022→2022→2022-08-31 · 4 recorded revisions · pulled forward -0.8 yr (first announced 2023)
Revenue & offtake contract duration and price levels · money of the day
CfD-backed offtake
● CfD · AR2
Price£57.5/MWh ·Basis2012 real · CPI-indexed
Capacity1,386 MWAwardedSep 2017Term15 yrs · delivery 2022/23
Money-of-the-day values computed by Hafrok from the United Kingdom CPI index, 2012 real base — actual to 2026-07, then an assumed +2.0%/yr (central-bank target). Cfd terms run 15 years from start of generation in the contracted delivery year.
Contract price over time · £/MWh
solid = actual CPI indexation · dashed = assumed +2.0%/yr
CfD · AR2
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
Foundations165 of 165≈100% · first seen 2018-07-10 · 14 more than the record expects — a met mast, a platform not on the register, or a survey artefact
Turbines163 of 165≈99% · first seen 2018-07-10
Latest count2023-12-30from 924 satellite passes · 2 substation platforms left out so the counts compare with the turbine number · the count has ended: the build is complete
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 (165 turbines + 2 platforms); the table counts turbines only
foundationsturbines up (a substation top being set in place counts here too)
Installation contracts
Offshore substationSleipnir◇Heerema · heavy-lift vessel · 2021 → 2021-10 · CompletedSatellite image
Image taken2026-09-07≈Copernicus Sentinel-1 radar satellite, northbound pass
Farm covered100%≈the whole farm lies inside the image
Structures ringed181 confirmed · 0 not yet confirmed≈as counted on 2023-12-30 · the image is newer than the count, so a bright spot without a ring may be a structure not yet counted
Contains modified Copernicus Sentinel data 2026, processed by ESA and by Microsoft Planetary Computer.
Latest satellite radar image · 2026-09-07
a radar picture, not a photograph: the sea is dark, steel is bright · black is beyond the edge of the image
confirmed structure (181)seen recently, not yet confirmed (0)probably a substation platform (a larger structure than a turbine; the register above has the facts)farm boundary
Grid connection
from Hafrok’s substation, converter and cable registers
Offshore platforms · 2
Offshore substationHornsea Two offshore substation (OSS)·66/220 kV · owner Diamond Transmission Partners Hornsea Two (OFTO); built by Ørsted
Offshore substationHornsea Two Reactive Compensation Station·owner Diamond Transmission Partners Hornsea Two (OFTO); built by Ørsted
Sources & verification
16/17 fields verified · 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.
Regulator2
[2]
UK Department for Business, Energy & Industrial Strategy / National Grid2017-09-11◆ CfD Allocation Round 2 results
“Hornsea Project 2 Breesea Limited Offshore Wind 1,3 86.00 57.50 2022/23 2 1,440,300 England ... 2 Hornsea will be built in three phases; 2022/23 is the delivery year for phase 1”
supportsMechanismDetail
[14]
Department for Energy Security and Net Zero2026-05-06◆ Renewable Energy Planning Database (REPD…
“REPD Q1 2026 quarterly extract — Ref ID 2502: Site Name "Hornsea 2 - Optimus and Breesea", Development Status "Operational", Installed Capacity 1320 MWelec, Operator "Orsted (formerly Dong Energy)"”
supportsRegister entry
Operator3
[1]
Ørsted (Decommissioning Programme filed under the Energy Act 2004)◆ Hornsea Project Two Offshore Wind Farm D…
"Onshore construction works commenced in April 2018, works in the intertidal area commenced in April 2019, and offshore construction is due to commence in 2020 with commissioning in 2022." ... Hornsea…
supportsConsentOnshore constructionOffshore constructionTurbinesModel+7 more
[3]
Ørsted2022-08-31◆ Hornsea 2, the world’s largest windfarm,…
“Ørsted is proud to announce that the world's largest installed windfarm, Hornsea 2, is now fully operational.”
supportsCommercial operationCOD historyTotal capacity
[15]
National Energy System Operator (NESO)2026-07-21◆ NESO Transmission Entry Capacity (TEC) R…
“NESO TEC Register, edition 21 July 2026 - PRO-000333: "Hornsea Power Station 2A", Status "Built", MW Connected 440, Effective From n/a, Customer "BREESEA LIMITED"; PRO-000334: "Hornsea Power Station 2…”
supportsRegister entry
Auction results1
[16]
BEIS (gov.uk)2017-09◆ cfd-ar2-results-2017
Triton Knoll Offshore Wind Farm — Offshore Wind 860.00 MW, GBP 74.75, 2021/22; Hornsea Project 2 (Breesea Limited) — 1,386.00 MW, GBP 57.50, 2022/23; Moray Offshore Windfarm (East) — 950.00 MW, GBP 57…
supportsCfD · AR2
Record source1
[17]
offshore-energy.biz / offshoreWIND.biz2021-10-27◆ oe-hornsea-two-substations-2021-10
Press report — cited, not quoted; read it at the source link.
supportsSleipnir — substation installation
Trade press5
[4]
CNBC2021-12-21◆ Orsted: Milestone for wind farm expected…
Press report — cited, not quoted; read it at the source link.
supportsFirst power
[8]
offshoreWIND.biz2024-10
Press report — cited, not quoted; read it at the source link.
supportsoperatorowner
[9]
offshoreWIND.biz2017-09-11
Press report — cited, not quoted; read it at the source link.
supportsFinal investment decision
[10]
offshoreWIND.biz2020-10-09
Press report — cited, not quoted; read it at the source link.
supportsOnshore constructionOffshore construction
[11]