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NESO TEC REGISTER · GREAT BRITAINHydro and pumped storage projects in the connection queue on the SSEN Transmission (north Scotland) network
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.
Projects shown4212.4 GW in total
In planning8scoping or awaiting consent
Consented or building7closest to connecting
Built27connected and operating
Map
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Voltage400 kV275 kV132 kVHVDCNew HVAC
ProjectsPlanningConsentedConstructionBuiltMajor project with its own page
Projects
42 projects
| Project | Capacity | Stage |
|---|---|---|
| Earba PSH Hydro and pumped storage · Earba Limited |
1.8 GW | Consents Approved |
| Glen Earrach PSH Hydro and pumped storage · Glen Earrach Energy Limited |
1.8 GW | Scoping |
| Fearna PSH 2 Hydro and pumped storage · Fearna Psh Limited |
1.5 GW | Awaiting Consents |
| Coire Glas Pumped Storage Hydro and pumped storage · Coire Glas Hydro Pumped Storage Limited |
1.3 GW | Scoping |
| Balliemeanoch PSH Hydro and pumped storage · ILI (Borders PSH) Ltd |
900 MW | Scoping |
| Loch Kemp PSH Hydro and pumped storage · Loch Kemp Storage Limited |
660 MW | Scoping |
| Coire Glas Pumped Storage Hydro and pumped storage · Coire Glas Hydro Pumped Storage Limited |
612 MW | Consents Approved |
| Earba PSH Hydro and pumped storage · Earba Limited |
600 MW | Consents Approved |
| Loch na Cathrach Pumped Storage Hydro Hydro and pumped storage · Statkraft Highlands Psh Limited |
550 MW | Consents Approved |
| Longhaven Energy Storage Centre Hydro and pumped storage · Hydrostor UK Ltd |
500 MW | Scoping |
| Loch na Cathrach Pumped Storage Hydro Hydro and pumped storage · Statkraft Highlands Psh Limited |
450 MW | Consents Approved |
| Foyers Hydro and pumped storage · Sse Generation Limited |
300 MW | |
| Loch Fearna Pumped Storage Hydro and pumped storage · Fearna Psh Limited |
300 MW | Awaiting Consents |
| Muaitheabhal Wind Farm Hydro and pumped storage · Uisenis Power Limited |
189 MW | Consents Approved |
| Glendoe Hydro and pumped storage · Sse Generation Limited |
100 MW | |
| Sloy G2 and G3 Hydro and pumped storage · Sse Generation Limited |
80 MW | |
| Errochty Hydro and pumped storage · Sse Generation Limited |
75 MW | |
| Sloy G1 and G4 Hydro and pumped storage · Sse Generation Limited |
73 MW | |
| Clunie (part of the Clunie Cascade) Hydro and pumped storage · Sse Generation Limited |
61 MW | |
| Lochay (Part of Killin Cascade Hydro Scheme) Hydro and pumped storage · Sse Generation Limited |
51 MW | Under Construction/Commissioning |
| Fasnakyle G1 & G2 Hydro and pumped storage · Sse Generation Limited |
46 MW | |
| Lochay (Part of Killin Cascade Hydro Scheme) Hydro and pumped storage · Sse Generation Limited |
45 MW | |
| Glenmoriston (part of the Moriston Cascade) Hydro and pumped storage · Sse Generation Limited |
40 MW | |
| Deanie (part of the Beauly Cascade) Hydro and pumped storage · Sse Generation Limited |
38 MW | |
| Finlarig Hydro and pumped storage · Sse Generation Limited |
35 MW | Scoping |
| Luichart (part of the Conon Cascade) Hydro and pumped storage · Sse Generation Limited |
34 MW | |
| Fasnakyle G3 & G4 Hydro and pumped storage · Sse Generation Limited |
31 MW | |
| Aigas (part of the Beauly Cascade) Hydro and pumped storage · Sse Generation Limited |
20 MW | |
| Ceannacroc (part of the Moriston Cascade) Hydro and pumped storage · Sse Generation Limited |
20 MW | |
| Invergarry (part of the Garry Cascade) Hydro and pumped storage · Sse Generation Limited |
20 MW | |
| Kilmorack (part of the Beauly Cascade) Hydro and pumped storage · Sse Generation Limited |
20 MW | |
| Culligran (part of the Beauly Cascade) Hydro and pumped storage · Sse Generation Limited |
19 MW | |
| Mossford (part of the Conon Cascade) Hydro and pumped storage · Sse Generation Limited |
19 MW | |
| Livishie (part of the Moriston Cascade) Hydro and pumped storage · Sse Generation Limited |
18 MW | |
| Orrin (part of the Conon Cascade) Hydro and pumped storage · Sse Generation Limited |
18 MW | |
| 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 | |
| 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.