Grid infrastructure › Connection queue › Offshore wind
OFFSHORE WIND · SHETMarram Wind Offshore Wind Farm
Marram Wind Offshore Wind Farm is a 3.0 GW offshore wind project in planning, connecting to the SSEN Transmission (north Scotland) network at Longside 400kV Substation, with capacity due from October 2033. The connection agreement is held by Marramwind Limited.
- Planning (current stage)
- Consented (not yet reached)
- Construction (not yet reached)
- OperatingFrom Oct 2033 (not yet reached)
- 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-001406-2
- Customer
- Marramwind Limited
- Technology
- Wind Offshore
- Total capacity
- 3.0 GW
- Change in this agreement
- +2.0 GW
- Capacity effective from
- 31 October 2033
- Connection site
- Longside 400kV Substation
- Transmission owner
- SSEN Transmission (north Scotland)
- Connection type
- Direct connection to the transmission network
- NESO project status
- Scoping
Connection site
The marker shows the place the connection site is named after, not the project itself, with the transmission network around it.
Other projects at Longside 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