Cruachan U3&4 Replacement
Cruachan U3&4 Replacement is a pumped storage project of 440–480 MW in NESO's TEC Register of 23 Oct 2026, connecting at Cruachan 275kV Substation (SPT). Status: Built, Consents Approved. Gate 2.
- Customer
- DRAX PUMPED STORAGE LIMITED
- Connection site
- Cruachan 275kV Substation
- Transmission owner
- SPT
- Technology
- Pumped storage
- Capacity (TEC)
- 440–480 MW
- Agreement
- Direct Connection
- Gate
- Gate 2
- Status
- Built, Consents Approved
- MW effective from
- 4 Apr 2029
- NESO project number
- PRO-000113-1, PRO-000113-2
Also at Cruachan 275kV Substation
| Project | Technology | MW |
|---|---|---|
| Cruachan Expansion | Pumped storage | 600 |
Source
- NESO TEC Register, National Energy System Operator, publication of 23 Oct 2026. NESO Open Data Licence.