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Home β€Ί Grid infrastructure β€Ί Connection queue

NESO TEC REGISTER Β· GREAT BRITAIN

Hydro 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 shown64.2 GW in total
In planning8scoping or awaiting consent
Consented or building7closest to connecting
Built27connected and operating

Map

Loading projects…

Voltage400 kV275 kV132 kVHVDCNew HVAC

ProjectsPlanningConsentedConstructionBuiltMajor project with its own page

Projects

6 projects
ProjectCapacityStageConnection siteFrom
Earba PSH
Hydro and pumped storage Β· Earba Limited
1.8 GWConsents Approved Earba PSH Powerhouse Substation
SSEN Transmission (north Scotland)
Oct 2035
Coire Glas Pumped Storage
Hydro and pumped storage Β· Coire Glas Hydro Pumped Storage Limited
612 MWConsents Approved Coire Glas GSP
SSEN Transmission (north Scotland)
Oct 2029
Earba PSH
Hydro and pumped storage Β· Earba Limited
600 MWConsents Approved Earba PSH Powerhouse Substation
SSEN Transmission (north Scotland)
Dec 2032
Loch na Cathrach Pumped Storage Hydro
Hydro and pumped storage Β· Statkraft Highlands Psh Limited
550 MWConsents Approved Knocknagael 275kV
SSEN Transmission (north Scotland)
Oct 2030
Loch na Cathrach Pumped Storage Hydro
Hydro and pumped storage Β· Statkraft Highlands Psh Limited
450 MWConsents Approved Knocknagael 275kV
SSEN Transmission (north Scotland)
Apr 2029
Muaitheabhal Wind Farm
Hydro and pumped storage Β· Uisenis Power Limited
189 MWConsents Approved Muaitheabhal 132/33kV Substation
SSEN Transmission (north Scotland)
Dec 2030

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 β€œconnection nodes” are listed but not mapped.