Kentish Flats Extension Export

Offshore GridOperationalGB49.5 MW

Basic Information

Also known as:Kentish Flats Extension export cable, Kentish Flats Extension grid connection

Status:Operational

Capacity:49.5 MW

Transmission Model:Developer Full

Owners:

Vattenfall(100%)

Type:offshore grid

Description:

Kentish Flats Extension Export is the subsea HVAC export connection that transmits output from the 49.5 MW Kentish Flats Extension (15 × 3.3 MW turbines) to shore. The system comprises up to two 33 kV export circuits which run from the extension array in the Outer Thames Estuary, parallel to...

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Route

Design Envelope

Notes: The consented export design comprises up to two subsea HVAC export cables (33 kV) running from the Kentish Flats Extension array to landfall at or adjacent to Hampton Pier, Herne Bay, then following the existing Kentish Flats onshore route to the Red House Farm substation; onshore there may be one or two 33 kV underground cables
The total length of the export cable(s) is limited to not exceed 18 km and the total length of inter‑array cabling is limited to not exceed 12 km; the array is located approximately 7.8 km offshore
No offshore HVAC/HVDC converter stations or offshore substations are consented as part of the Extension (the authorised offshore works are turbines and subsea inter‑array/export cables); transmission capacity equals the extension output ~49.5 MW