Grid operator · Company
SP Transmission plc
SP Transmission plc is the grid operator for 16 grid connections in the United Kingdom, with 16,965 MW of capacity connected. It is a subsidiary of Iberdrola.
On its grid
The 16 assets connected to the grid of SP Transmission plc. It is their grid operator, not their owner.
- Grid connections16 · 16,965 MW connected
Grid connections 16 · 16,965 MW connected
| Grid connection | Location | Role | Capacity |
|---|---|---|---|
| Machair Offshore Wind Farm grid connection | Scotland, United Kingdom | Grid operator | 2,000 MW |
| Phoenix 1B Offshore Wind Farm grid connection | Scotland, United Kingdom | Grid operator | 1,500 MW |
| INTOG 2 grid connection | Scotland, United Kingdom | Grid operator | 1,400 MW |
| Berwick Bank Offshore Wind Farm A grid connection | Scotland, United Kingdom | Grid operator | 1,380 MW |
| Berwick Bank Offshore Wind Farm B grid connection | Scotland, United Kingdom | Grid operator | 1,380 MW |
| Torness grid connection | Scotland, United Kingdom | Grid operator | 1,250 MW |
| Branxton PV & BESS Station grid connection | Scotland, United Kingdom | Grid operator | 1,000 MW |
| Middleton Farm BESS grid connection | Scotland, United Kingdom | Grid operator | 937 MW |
| Lochore BESS grid connection | Scotland, United Kingdom | Grid operator | 900 MW |
| Whitelee grid connection | Scotland, United Kingdom | Grid operator | 818 MW |
| Elmya Dalry BESS & PV grid connection | Scotland, United Kingdom | Grid operator | 800 MW |
| NatPower Harburn Green Energy Park grid connection | Scotland, United Kingdom | Grid operator | 800 MW |
| Branxton Energy Storage Facility grid connection | Scotland, United Kingdom | Grid operator | 750 MW |
| Wyseby Hill Energy Farm grid connection | Scotland, United Kingdom | Grid operator | 750 MW |
| Auchentiber Farm 700MW BESS grid connection | Scotland, United Kingdom | Grid operator | 700 MW |
| Neilston 400kV Greener Grid Park grid connection | Scotland, United Kingdom | Grid operator | 600 MW |
By country
Where the assets and rights are.
- The United Kingdom16 grid connections
Group
Parent companies
From SP Transmission plc up to its ultimate parent in the data.
- SP Transmission plc
- Iberdrola
Also a subsidiary of Scottish Power Energy Networks Holdings Limited and Scottish Power UK plc.
Partners and counterparties
Owners, operators and grid operators on the same assets.
- Scottish Power Renewables2 shared
- Berwick Bank A Limited1 shared
- Berwick Bank B Limited1 shared
- Bluestone Energy1 shared
- Cerulean Winds Limited1 shared
- EastCoastGridServices Ltd1 shared
- EDF Energy Nuclear Generation Limited1 shared
- Elmya Energy UK 17 Limited1 shared
- GPC 700 Ltd1 shared
- IGP Solar 26 Limited1 shared
- Lochore BESS Ltd1 shared
- Morven Offshore Wind Limited1 shared
Facts
| Fact | Value | Source |
|---|---|---|
| Location | Scotland | Companies House bulk company data · record · OGL v3 · checked 25 Oct 2026 |
| Location | United Kingdom | GLEIF LEI · record · CC0 1.0 · checked 25 Oct 2026 |
| LEI | 21380066GRV5QOWJZC71 | Rare Context entity resolution · record · CC0 1.0 · checked 25 Oct 2026 GLEIF LEI · record · CC0 1.0 · checked 25 Oct 2026 |
| Company number | SC189126 | Companies House bulk company data · record · OGL v3 · checked 25 Oct 2026 GLEIF LEI · record · CC0 1.0 · checked 25 Oct 2026 |
| Register status | Active | Companies House bulk company data · record · OGL v3 · checked 25 Oct 2026 |
| Company type | Public Limited Company | Companies House bulk company data · record · OGL v3 · checked 25 Oct 2026 |
| Incorporated | 7 Sept 1998 | Companies House bulk company data · record · OGL v3 · checked 25 Oct 2026 |
| Industry (SIC) | 35120 - Transmission of electricity | Companies House bulk company data · record · OGL v3 · checked 25 Oct 2026 |
Also recorded as
Sources name SP Transmission plc under 3 records; this page joins them. Links to any of them lead here.
| Name in the source | Identifier | Source |
|---|---|---|
| SP TRANSMISSION PLC | party:company-number:gb-sc189126 | Companies House bulk company data |
| SP TRANSMISSION PLC | party:lei:21380066GRV5QOWJZC71 | GLEIF LEI |
| SP Transmission plc | party:name:sp-transmission-plc | NESO TEC Register |
Research on SP Transmission plc.Who owns the assets on its grid, where it has capacity left and how long its queue is, and an introduction to the people who decide on connections.
Request researchData on this page
- Our public task, copyright and Crown copyright. Companies House bulk company data, OGL v3.
- Our public task, copyright and Crown copyright. Companies House PSC snapshot, Free, unsupported daily snapshot.
- GLEIF LEI. GLEIF LEI, CC0 1.0.
- Supported by National Energy SO Open Data. NESO TEC Register, NESO Open Data Licence v1.0.
- Rare Context entity resolution. Rare Context entity resolution, CC0 1.0.