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WIND Β· OPERATIONAL

Kentish Flats Extension

Kentish Flats Extension is a 49.5 MW offshore wind farm in South East England, operated by Vattenfall. The UK government lists it as operational in its register of power stations (DUKES table 5.11, May 2025).

  • Offshore
  • South East
  • England
Project stageOperating
  1. PlanningJun 2012 (completed)
  2. ConsentedFeb 2013 (completed)
  3. ConstructionNov 2014 (completed)
  4. OperatingSep 2015 (current stage)
  5. Closed (not yet reached)

Planning dates from the Renewable Energy Planning Database; operating status from DUKES table 5.11.

Key facts

Installed capacity
49.5 MW
Status
Operational
Technology
Wind Β· Offshore
Operator
Vattenfall
Region
South East
Country
England
Grid connection (DUKES)
LV
Combined heat & power
No
Coordinates
51.4378, 1.0975

Location

Map position from the published coordinates. For small sites this can be an approximate point rather than the exact boundary. Map Β© OpenStreetMap contributors.

How Kentish Flats Extension compares

110th of 488largest wind farms in the UK register
6th of 7in South East
0.17%of listed UK wind farms capacity
β‰ˆ 165 GWhillustrative output a year

At a typical UK load factor for this technology (about 38% of the maximum possible output), a 49.5 MW station would generate roughly 165 GWh of electricity in a year, similar to the annual use of about 61,030 homes at 2,700 kWh each. This is an illustrative estimate, not the station's metered output: real generation varies with weather, availability and grid constraints.

Wind farms turn the kinetic energy of the wind into electricity with turbines. Output varies with wind speed. Offshore sites usually see stronger, steadier winds than onshore sites and so generate more per MW of capacity.

All UK wind farms Wind farms in South East All run by Vattenfall

Planning history

From the government's Renewable Energy Planning Database (REPD), matched to this site by location, capacity and name.

Planning status
Operational
Site name in planning record
Kentish Flats 2
Developer / operator
Vattenfall
Planning authority
The Planning Inspectorate - National Infrastructure
Planning reference
EN010036
Application submitted
1 June 2012
Permission granted
19 February 2013
Construction started
26 November 2014
Began operating
14 September 2015
Capacity in planning record
49.5 MW
Address
Kentish Flats Offshore extension, Offshore
REPD reference
2504

Source

Department for Energy Security and Net Zero (DESNZ), Digest of UK Energy Statistics (DUKES), table 5.11: power stations in the United Kingdom β€” operational at end of May 2025. Capacity is installed capacity as published, not current output. Status reflects the source date, not live operation.
View the original source
Last checked by Octary: 15 July 2026

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