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Grid infrastructure › Connection queue › Offshore wind

OFFSHORE WIND · SHET

Spiorad Na Mara Offshore Wind Farm

Spiorad Na Mara Offshore Wind Farm is a 900 MW offshore wind project in planning, connecting to the SSEN Transmission (north Scotland) network at Arnish Lewis Hub 400kV Substation, with capacity due from December 2030. The connection agreement is held by Spiorad Na Mara Limited.

Project stageIn planning
  1. Planning (current stage)
  2. Consented (not yet reached)
  3. Construction (not yet reached)
  4. OperatingFrom Dec 2030 (not yet reached)
  5. Closed (not yet reached)

Scoping and awaiting consents are both shown as planning. A connection agreement does not mean the project will be built: many queue projects never reach construction.

Connection details

NESO project number
PRO-001642
Customer
Spiorad Na Mara Limited
Technology
Wind Offshore
Total capacity
900 MW
Change in this agreement
+900 MW
Capacity effective from
31 December 2030
Connection site
Arnish Lewis Hub 400kV Substation
Transmission owner
SSEN Transmission (north Scotland)
Connection type
Direct connection to the transmission network
NESO project status
Scoping

Connection site

The connection site could not be placed on the map.

Projects connecting near Arnish Lewis Hub · Grid map

Other projects at Arnish Lewis Hub 400kV Substation

Source: NESO Transmission Entry Capacity (TEC) register, downloaded 8 November 2026. Contains data from NESO, licensed under the NESO Open Data Licence. Report a problem