Sloy G1 and G4

Sloy G1 and G4 is a 73 MW hydro and pumped storage project built and connected, connecting to the SSEN Transmission (north Scotland) network at Sloy GSP. The connection agreement is held by Sse Generation Limited.

Project stageOperating

Planning (completed)
Consented (completed)
Construction (completed)
Operating (current stage)
Closed (not yet reached)

Connection details

NESO project number: PRO-000181
Customer: Sse Generation Limited
Technology: Hydro
Total capacity: 73 MW
Already connected: 73 MW
Connection site: Sloy GSP
Transmission owner: SSEN Transmission (north Scotland)
Connection type: Embedded (connects through the local distribution network)
NESO project status: Built

Connection site

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

Projects connecting near Sloy GSP · Grid map

Other projects at Sloy GSP

Sloy G2 and G3Hydro and pumped storage · 80 MW · Built

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