Kentish Flats
Located off the Kent coast in the outer Thames Estuary, approximately 8.8 km north of Herne Bay and 9.5 km north of Whitstable.
United KingdomTechnology
Capacity
90 MW ◆
Turbines
30 × 3 MW ◆
Model
Vestas V90 3-0 ◆
Foundation
Monopile ◆
Site & conditions
Site rights
Seabed rights held ∴
Origination
Crown Estate Round 1 · 2001 ·
Water depth
6–8 m ◆
Distance from shore
8.8 km ◆
Wind speed
8.8 m/s @ 100 m ≈
Revenue & grid
Offtake
Certificate ◆
Grid
Secured · 2005 ◆
Connection
Onshore substation at Whitstable; three buried 33kV PEX cables … ◆
Schedule
FID
2004 ◆
COD
2005-Q4 ◆
Project timeline & ownership verified milestones on the spine · ownership from Hafrok’s transactions record
Origination · 2001-04
Crown Estate Round 1
- Awarded to
- Vattenfall
- Basis
- seabed award
From the auction results — the round that created the project.
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.
Revenue & offtake the regime the project was built under
Offtake regime on record
RegimeROC (band not project-specifically sourced; inferred only from pre-April 2007 vintage)
Instrumentgreen certificates
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
Satellite survey
the farm as it stands, counted from satellite radar images · built before the count began, so there is no build to chart
Satellite survey
Structures standing30≈30 turbines + 0 platforms expected · every expected structure seen
Surveyed2026-09-01≈from 118 satellite passes
Built2004 → 2005-Q4offshore construction to start of operation, from the record
Hafrok counts the structures standing in the sea from satellite radar images (≈) and reads the count against the turbines and platforms on record. The farm was built before this count began, so the images show it complete; they cannot date its construction. Rows marked with a dot (·) come from Hafrok’s own registers.
Satellite image
Image taken2026-09-07≈Copernicus Sentinel-1 radar satellite, northbound pass
Farm covered100%≈the whole farm lies inside the image
Structures ringed30 confirmed · 0 not yet confirmed≈as counted on 2026-09-01 · the image is newer than the count, so a bright spot without a ring may be a structure not yet counted
Construction ports
PortWhitstable Harbour ◆O&M base
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 (30)seen recently, not yet confirmed (0)probably a substation platform (a larger structure than a turbine; the register above has the facts)farm boundary
Sources & verification
17/18 fields verified · rests on 8 sources (5 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.
Regulator3
[1]
Companies House (UK)2018-08-23◆ KENTISH FLATS LIMITED persons with signi…
“Vattenfall Wind Power Ltd holds ownership of shares – 75% or more, voting rights – 75% or more. Notified on August 23, 2018. Ceased PSC: Vattenfall Vindkraft Ab (same date — corporate restructuring wi…”
supportsoperator
[2]
[8]
Department for Energy Security and Net Zero2026-05-06◆ Renewable Energy Planning Database (REPD…
“REPD Q1 2026 quarterly extract — Ref ID 2492: Site Name "Kentish Flats", Development Status "Operational", Installed Capacity 90 MWelec, Operator "Vattenfall"”
supportsRegister entry
Operator2
[3]
Vattenfall2025◆ Power plants: Kentish Flats - Vattenfall
“Kentish Flats is a 90 MWe offshore wind farm with 30 turbines. The average water depth is five metres. The site can be easily accessed from the local maintenance port at Whitstable, which is only 30 m…”
supportsTurbinesTotal capacityMechanismDetailO&M base
[4]
Trade press3
[5]
Modern Power Systems2006
“Take-over certificate for Kentish Flats was signed on 8 December 2005, marking its entry into commercial operation. Fully consented in March 2003. Site work commenced summer 2004. Foundation installat…”
supportsConsentFinal investment decisionOffshore constructionCommercial operationTurbines+7 more
[6]
[7]