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Grid infrastructure › Connection queue › Hydro and pumped storage

HYDRO AND PUMPED STORAGE · SHET

Lochay (Part of Killin Cascade Hydro Scheme)

Lochay (Part of Killin Cascade Hydro Scheme) is a 51 MW hydro and pumped storage project under construction or commissioning, connecting to the SSEN Transmission (north Scotland) network at Lochay 132/11kV Substation, with capacity due from January 2027. The connection agreement is held by Sse Generation Limited.

Project stageUnder construction
  1. Planning (completed)
  2. Consented (completed)
  3. Construction (current stage)
  4. OperatingFrom Jan 2027 (not yet reached)
  5. Closed (not yet reached)

Connection details

NESO project number
PRO-000174-2
Customer
Sse Generation Limited
Technology
Hydro
Total capacity
51 MW
Change in this agreement
+6.2 MW
Capacity effective from
1 January 2027
Connection site
Lochay 132/11kV Substation
Transmission owner
SSEN Transmission (north Scotland)
Connection type
Direct connection to the transmission network
NESO project status
Under Construction/Commissioning

Connection site

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

Projects connecting near Lochay · Grid map

Other projects at Lochay 132/11kV Substation

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