Grid infrastructure › Connection queue › Hydro and pumped storage
HYDRO AND PUMPED STORAGE · SHETBalliemeanoch PSH
Balliemeanoch PSH is a 900 MW hydro and pumped storage project in planning, connecting to the SSEN Transmission (north Scotland) network at Balliemeanoch 275kV Substation, with capacity due from October 2034. The connection agreement is held by ILI (Borders PSH) Ltd.
Project stageIn planning
- Planning (current stage)
- Consented (not yet reached)
- Construction (not yet reached)
- OperatingFrom Oct 2034 (not yet reached)
- Closed (not yet reached)
Scoping and awaiting consents are both shown as planning. A connection agreement does not mean the project will be built: many queue projects never reach construction.
Connection details
- NESO project number
- PRO-001901
- Customer
- ILI (Borders PSH) Ltd
- Technology
- Pump Storage
- Total capacity
- 900 MW
- Change in this agreement
- +900 MW
- Capacity effective from
- 31 October 2034
- Connection site
- Balliemeanoch 275kV Substation
- Transmission owner
- SSEN Transmission (north Scotland)
- Connection type
- Direct connection to the transmission network
- NESO project status
- Scoping
Connection site
The connection site could not be placed on the map.
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