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Grid infrastructure › Connection queue › Hydro and pumped storage

HYDRO AND PUMPED STORAGE · SHET

Loch na Cathrach Pumped Storage Hydro

Loch na Cathrach Pumped Storage Hydro is a 450 MW hydro and pumped storage project consented, connecting to the SSEN Transmission (north Scotland) network at Knocknagael 275kV, with capacity due from April 2029. The connection agreement is held by Statkraft Highlands Psh Limited.

Project stageConsented
  1. Planning (completed)
  2. Consented (current stage)
  3. Construction (not yet reached)
  4. OperatingFrom Apr 2029 (not yet reached)
  5. Closed (not yet reached)

Connection details

NESO project number
PRO-000570-1
Customer
Statkraft Highlands Psh Limited
Technology
Pump Storage
Total capacity
450 MW
Change in this agreement
+450 MW
Capacity effective from
30 April 2029
Connection site
Knocknagael 275kV
Transmission owner
SSEN Transmission (north Scotland)
Connection type
Direct connection to the transmission network
NESO project status
Consents Approved

Connection site

The marker shows the connection substation, not the project itself, with the transmission network around it.

Projects connecting near Knocknagael · Grid map

Other projects at Knocknagael 275kV

Source: NESO Transmission Entry Capacity (TEC) register, downloaded 8 November 2026. Contains data from NESO, licensed under the NESO Open Data Licence. Report a problem