Grid connection · Scotland, United Kingdom
Marram Wind Offshore Wind Farm grid connection
Marram Wind Offshore Wind Farm grid connection is a planned grid connection in Scotland, United Kingdom, with 3,000 MW of capacity, held by Marramwind Limited.
Facts
Every value links to its source, and to the source's own record where it has one. Licences and last-checked dates are per row.
| Fact | Value | Source |
|---|---|---|
| Location | Scotland (connects at Longside 400kV Substation) | NESO TEC Register · NESO Open Data Licence v1.0 · checked 24 Oct 2026 |
| Status | Planned (scoping) | NESO TEC Register · NESO Open Data Licence v1.0 · checked 24 Oct 2026 |
| Holder | Marramwind Limited | NESO TEC Register · NESO Open Data Licence v1.0 · checked 24 Oct 2026 |
| Attached to | Marram Wind Offshore Wind Farm | NESO TEC Register · NESO Open Data Licence v1.0 · checked 24 Oct 2026 |
| Capacity | 3,000 MW | NESO TEC Register · NESO Open Data Licence v1.0 · checked 24 Oct 2026 |
| Technology | Wind Offshore | NESO TEC Register · NESO Open Data Licence v1.0 · checked 24 Oct 2026 |
| Grid operator | Scottish Hydro Electric Transmission plc | NESO TEC Register · NESO Open Data Licence v1.0 · checked 24 Oct 2026 |
| Connection date | 31 Oct 2031 (stage 1, cumulative 1,000 MW) | NESO TEC Register · NESO Open Data Licence v1.0 · checked 24 Oct 2026 |
| Connection date | 31 Oct 2033 (stage 2, cumulative 3,000 MW) | NESO TEC Register · NESO Open Data Licence v1.0 · checked 24 Oct 2026 |
Research on this grid connection and its holder.Who holds it up to the parent company, the project behind it and its connection date, and an introduction to the holder.
Request researchHow it compares
Marram Wind Offshore Wind Farm grid connection is the largest of 1,192 grid connections in Scotland and the 10th-largest of 3,903 in the United Kingdom by capacity; its 3,000 MW is 0.67% of the 446,745 MW we hold for the United Kingdom. Ranks and totals cover the grid connections in our data that report their capacity, not every one in existence.
| Within | Rank | Total | Share |
|---|---|---|---|
| Scotland | 1st of 1,192 | 88,894 MW | 3.4% |
| United Kingdom | 10th of 3,903 | 446,745 MW | 0.67% |
| All grid connections in our data | 11th of 7,928 | 1,372,494 MW | 0.22% |
Timeline
Dated facts about this grid connection from its sources, oldest first.
- Stage 1 due to connect, 1,000 MW in total
- Stage 2 due to connect, 3,000 MW in total
Holder, grid operator and place
Other grid connections in Scotland
- OWPL Windfarm grid connection2,250 MW
- Caledonia Offshore Wind Farm grid connection2,000 MW
- Machair Offshore Wind Farm grid connection2,000 MW
- Arven Offshore Wind Farm grid connection1,800 MW
- Bellrock Offshore Wind Farm grid connection1,800 MW
- Earba PSH grid connection1,800 MW
- Glen Earrach PSH grid connection1,800 MW
- North-East Offshore Hybrid Asset grid connection1,800 MW
Data on this page
- California ISO. CAISO queue report, CAISO Privacy and Terms of Use.
- SP Electricity North West, via Northern Powergrid Open Data. SP Electricity North West open data portal, CC BY 4.0.
- ERCOT GIS report. ERCOT GIS report, ERCOT Terms of Use.
- Supported by National Energy SO Open Data. NESO TEC Register, NESO Open Data Licence v1.0.
- Supported by Northern Powergrid Open Data. Northern Powergrid open data portal, Northern Powergrid Open Data Licence v1.0.
- NYISO interconnection queue. NYISO interconnection queue, Free reuse.
- PJM New Services Queue. PJM New Services Queue, Free reuse.
- SP Energy Networks, via Northern Powergrid Open Data. SP Energy Networks open data portal, CC BY 4.0.
- SSEN Distribution. SSEN Distribution data portal, CC BY 4.0.