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Transmission / Projects / North Scotland

Spiorad Na Mara Offshore Wind Farm

SPIORAD NA MARA LIMITED at Arnish Lewis Hub 400kV Substation

Connection date
31 Dec 2030
Gate
Not stated
Status
Scoping
Planning consent
Application submitted 11 Mar 2026
Marine Scotland · Source: REPD
Technology
Offshore wind
Total capacity
900 MW
Connected now
0 MW
Still to connect
900 MW
Transmission owner
SSEN Transmission (SHET)
Agreement type
Direct Connection
Region
North Scotland
Project number
PRO-001642
In the register since
October 2021

Change history

Every change to this project across 151 registers from 29 Jan 2021 to 5 Nov 2026.

  • 30 Jan 2026 register
    Connection point changed from NPI C 220/66KV OFFSHORE SUBSTATION to Arnish Lewis Hub 400kV Substation
  • 27 Jun 2025 register
    Capacity changed from 740 MW to 900 MW
  • 27 Jun 2025 register
    Connection date moved from 31 Oct 2030 to 31 Dec 2030 (+2 months)
  • 24 Dec 2024 register
    Customer changed from Northland Power UK Limited to SPIORAD NA MARA LIMITED
  • 29 Dec 2023 register
    Renamed from NPI C Offshore Wind Farm
  • 28 Nov 2023 register
    Connection date moved from 31 Oct 2033 to 31 Oct 2030 (−36 months)
  • 28 Feb 2023 register
    Renamed from NPI C 220/66kV Offshore
  • 29 Oct 2021 register
    Added to the register

Also at Arnish Lewis Hub 400kV Substation

Substation view

1 other project, 1.4 GW still to connect at this substation in total.

Status definitions (NESO)

Scoping: NESO is not aware that a planning application has been made.

Awaiting Consents: NESO is aware, or the customer has told it, that a planning application has been made.

Consents Approved: NESO is aware, or the customer has told it, that the planning application has been approved.

Terminated: used by NESO only in its register of 30 April 2021, for two projects that left the register the next month.

These statuses are NESO’s, not QueueWatch’s, and NESO describes them as “as far as we are aware”, so a project may be further along than its status shows.

Source: NESO

Planning consent

The planning decision or stage for this project, from DESNZ’s Renewable Energy Planning Database (REPD), July 2026 edition, with the planning authority and its reference. QueueWatch matched the project to that record. NESO’s status can lag behind planning decisions, so the two may differ.

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