Cenos

INTOG TOG. Central North Sea. Will deliver 5.5TWh/yr to UK grid. Combined with Green Volt could reduce UK O&G emissions by 15%.

Status
Early Developmentlifecycle stage
ProspectiveHafrok completion outlook
Ownership
FLFlotation Energy — 50% 
Vårgrønn — 50% 
Location
United Kingdom
North Sea
Technology
Capacity 1,350 MW  Turbines 95 × 15 MW  Foundation Floating 
Site & conditions
Site rights Seabed rights held 
Origination INTOG Leasing (Innovation and Targeted Oil & Gas) · 2023 ·
Water depth 93–99 m  Distance from shore 190 km  Wind speed 10.5 m/s @ 150 m 
Revenue & grid
Offtake
Grid Applied  Connection Peterhead 400kV Substation — NESO TEC register entry at Scoping … 
Schedule
FID Not taken
COD · announced 2031 
COD · Hafrok 2034 expected

Delivery outlook modelled by Hafrok · calibrated on delivered projects

2034
expected year of commercial operation
The developer says 2031; Hafrok expects 2034 — 3 years later.
Chance of delivery
≈55% estimated chance this project reaches commercial operation
Early Development projects complete ≈61% of the time on Hafrok's record. This one sits well below that: its size and technical complexity. A secured offtake contract helps only slightly.
COD outlook
If it completes, when — Hafrok’s probability by year (teal)
20%40%60%80%100% 2033: 14.1% (conditional on completion) 2034: 28.0% (conditional on completion) 2035: 22.7% (conditional on completion) 2036: 14.6% (conditional on completion) 2037: 8.7% (conditional on completion) 2038: 5.1% (conditional on completion) 2039: 3.1% (conditional on completion) 2040: 1.8% (conditional on completion) 2041: 1.1% (conditional on completion) 2042: 0.7% (conditional on completion)2026now2028203020312032203428%EXPECTED2036203820402042 Developer-announced COD: 2031 ANNOUNCED 2031
COD probability by year, conditional on completion
YearProbability
203314.1%
2034 (expected)28.0%
203522.7%
203614.6%
20378.7%
20385.1%
20393.1%
20401.8%
20411.1%
20420.7%
How Hafrok got this date
1
No dated milestone yet
Nothing is consented or financed with a date, so the estimate starts from today (2026), adds the time similar projects (floating, in established offshore-wind markets) took from consent to operation, plus an allowance for obtaining consent.
2
Earliest credible date
Typical consent-to-operation time plus allowances means commercial operation before 2034 is not credible.
3
Still needs an offtake award: UK-CFD-AR8
The project has no offtake contract yet. The next visible auction is around 2026 Q4; winners typically reach final investment decision about 2 years after an award (2028 Q4), then build time on top gives 2032 Q4. The milestone timing is already later than that, so it stands.
4
Result
Expected commercial operation 2034, likely range 2034–2040 (the middle half of outcomes for similar projects). With no milestone to build from, the earliest credible date is the estimate, with a deliberately wide range.
5
Year-by-year chart
The bars spread that estimate across years using how similar projects actually slipped against their dates — more often late than early, which is why the bars lean right.
6
Chance of delivery — separate from timing
Start from the share of Early Development projects that went on to complete — ≈61%, measured on Hafrok's record of delivered and abandoned projects, with an allowance held back where that record cannot yet speak (projects still unresolved, changed market conditions). About three in four early-stage projects with a final outcome went on to operate — a record from an easier era. Most of today's early pipeline is still unresolved, so the estimate discounts it. Then adjust for this project's own evidence — offtake, market, size, technical complexity — to ≈55%, which rates it Prospective on Hafrok's four-step delivery scale (Delivering · Expected · Prospective · Fragile).

Project timeline & ownership verified milestones on the spine · ownership from Hafrok’s transactions record

2023’24’25’26’27’28’29’30’31’32’33’34Developer-announced COD: 2031 announced COD 2031INTOG Leasing (Innovation and Targeted Oil & Gas) — awarded to Flotation EnergyINTOG Leasing (Innovation and Targeted Oil & Gas) Mar 2023 · auction recordView the source for Consent appliedConsent applied 26 Feb 2025 Commercial operation 2034 ·Hafrok expectedINTOG Leasing (Innovation and Targeted Oil & Gas) — awarded to Flotation Energy 2023-03 ORIGINATIONTransfer(s) not in Hafrok's record — shown as a gap, never guessed. UNRECORDEDTODAYFlotation Energy — 50% today · developer Flotation Energy Flotation Energy 50%Vårgrønn — 50% today · developer Vårgrønn Vårgrønn 50%INTOG Leasing (Innovation and Targeted Oil & Gas) — awarded to Flotation Energy Transfer(s) not in Hafrok's record — shown as a gap, never guessed.
Dashed tick marks today (9 Sep 2026). The ▲ below the spine is the developer-announced COD. 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.

Revenue & offtake route to market — open

No offtake secured — route to market open
The routes describe what exists in this market — not a prediction of which the project will take. Timing math for the auction gate lives in the delivery outlook above.
CfD allocation round
The UK's principal route — a 15-year, CPI-indexed, two-sided CfD awarded in annual competitive rounds.
Next visible round · from the auction calendar
CfD Allocation Round 8
expected H2 2026 · scheduled · the round’s published documents do not name this project
AR8 confirmed (gov update, Mar 2026) to OPEN July 2026 — brought forward from the earlier mid/late-2026 expectation
Corporate PPA
Bilateral long-term offtake with corporate buyers; can cover part of output alongside or ahead of a CfD.
Merchant
Uncontracted sale into the wholesale market — no price floor, full exposure to power prices.

Installation how the build is going · from satellite counts and Hafrok’s registers

Installation not started
nothing to count yet: the satellite tracker begins when offshore construction does
Installation · on record
StageEarly Development
Offshore constructionnot started
Expected start of operation2031

Sources & verification

4/14 fields verified · rests on 15 sources (8 primary) · ◆ 7 documents held
VerifiedModelledSourcedInferredConventionUnverifiedNo source·Derived
Numbers are stable citation ids — grouped by source class, so they are not consecutive.
Regulator2
[15]
Department for Energy Security and Net Zero2026-05-06◆ Renewable Energy Planning Database (REPD…
“REPD Q1 2026 quarterly extract — Ref ID 13528: Site Name "Cenos Offshore Wind Farm", Development Status "Application Submitted", Installed Capacity 1350 MWelec, Operator "Flotation Energy"”
supportsRegister entry
[17]
Scottish Government Marine Directorate (MD-LOT)2026-08-23◆ Scottish MD-LOT marine projects register…
“Register row "Cenos Offshore Windfarm" (key ml/cenos-offshore-windfarm): Application stage "Application", type "Renewables - Wind".”
supportsRegister entry
Operator6
[3]
NESO2026-06-12◆ NESO Transmission Entry Capacity (TEC) R…
“CENOS,FLOTATION ENERGY LIMITED,Peterhead 400kV Substation,,0,1350,1350,31/10/2035,Scoping,Direct Connection,SHET,Demand;Wind Offshore”
supportsStatusConnection point
[4]
Crown Estate Scotland2023-03-24◆ INTOG results - 13 projects
“Flotation Energy £40,987,979 TOG 1350”
supportsTotal capacity
[5]
Cenos Offshore Windfarm (Flotation Energy / Vårgrønn)2025-02-26◆ Cenos offshore consent application submi…
“With a nominal capacity of up to 1,350 MW, Cenos is a pioneering floating offshore wind project that will provide renewable power to the UK grid and to offshore oil and gas platforms in the UK North S…”
supportsConsentTotal capacityConsent applied
[7]
Cenos Offshore Windfarm (Flotation Energy / Vårgrønn)2026-06-15
“Cenos floating offshore windfarm | Delivering renewable power from 2031. Jointly developed by Flotation Energy and Vårgrønn. Up to 1,350 MW.”
supportsCommercial operationTotal capacity
[9]
Cenos (Flotation Energy/Vargronn2025
supportsTurbinesUnit capacityTotal capacityFoundation
[16]
National Energy System Operator (NESO)2026-07-21◆ NESO Transmission Entry Capacity (TEC) R…
“NESO TEC Register, edition 21 July 2026 - PRO-001847: "CENOS", Status "Scoping", MW Connected 0, Effective From 2035-10-31, Customer "FLOTATION ENERGY LIMITED"”
supportsRegister entry
Auction pipeline1
[18]
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 press5
[10]
offshoreWIND.biz2025
Press report — cited, not quoted; read it at the source link.
supportsDistance from shore
[11]
Global Energy Monitor2026-07-02
supportsCoordinates
[12]
GEBCO Compilation Group2020
supportsWater depth
[13]
Power Technology (GlobalData)2026
Press report — cited, not quoted; read it at the source link.
supportsdeveloper
[14]
DTU Wind Energy / World Bank (Global Wind Atlas)2026
supportsMean wind speed
Unverified import1
[1]
unknown
supportsTurbinesUnit capacityTotal capacityFoundationWater depth+2 more