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NESO TEC REGISTER · GREAT BRITAINHydro and pumped storage projects in the connection queue
Every generator, battery and interconnector with an agreement to connect to the GB transmission network, from early scoping to built. Filter by technology, stage or network, and open a project for its connection details.
Map
Voltage400 kV275 kV132 kVHVDCNew HVAC
ProjectsPlanningConsentedConstructionBuiltMajor project with its own page
Projects
| Project | Capacity | Stage |
|---|---|---|
| Quoich (part of the Garry Cascade) Hydro and pumped storage · Sse Generation Limited |
18 MW | |
| Finlarig Hydro and pumped storage · Sse Generation Limited |
17 MW | |
| Nant Hydro and pumped storage · Sse Generation Limited |
15 MW | |
| Pitlochry (part of the Clunie Cascade) Hydro and pumped storage · Sse Generation Limited |
15 MW | |
| Torr Achilty (part of the Conon Cascade) Hydro and pumped storage · Sse Generation Limited |
15 MW | |
| Cashlie (Part of Killin Cascade Hydro Scheme) Hydro and pumped storage · Sse Generation Limited |
11 MW | |
| Cwm Dyli Hydro and pumped storage · RWE Generation UK Plc |
10 MW | |
| Hunterston Hydrogen Hydro and pumped storage · Statkraft Hydrogen UK Holding Limited |
5 MW | Scoping |
| Lubreoch Hydro (Part of Killin Cascade Hydro Scheme) Hydro and pumped storage · Sse Generation Limited |
4 MW |
Sources: NESO Transmission Entry Capacity (TEC) register and interconnector register (downloaded 8 November 2026); NESO Clean Power 2030 network map (existing and planned circuits, substations and network projects); National Grid Electricity Transmission overhead line routes. Contains data from NESO, licensed under the NESO Open Data Licence, and National Grid open data. Projects are placed at their connection substation, not the generating site; projects at new, unnamed “connection nodes” are listed but not mapped.