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Pumped Storage Hydro

Ffestiniog Power Station

Ffestiniog, Gwynedd, Snowdonia, Conwy, LL41 3TP

Ffestiniog is a 360 MW pumped storage hydro project in Wales. The applicant or operator on record is First Hydro Company. It is recorded as operational since January 1961. The determining authority is Gwynedd.…

Operational Β· Since 1961
Official register: July 2026

Recorded status: Operational. Source record updated 2018-10-23.

Registered planning capacity; not measured generation.

DESNZ source publication Β· Search the full register Β· Definitions and coverage

360.000 MW
Registered Capacity
1961
Commissioned

πŸ“‹ Project Overview

Ffestiniog is a 360 MW pumped storage hydro project in Wales. The applicant or operator on record is First Hydro Company. It is recorded as operational since January 1961. The determining authority is Gwynedd.

Site Schematic

UPPER RES. LOWER RES. PENSTOCK TAILRACE GEN. GRID ⇑ PUMP ⇓ GENERATE HEAD: ?m Β· POWER: 360.000 MW Β· ? turbines

Schematic diagram β€” not to scale. Illustrative layout based on project specifications.

πŸ”§ Technical Specifications

Capacity (MW)360.000 MW

πŸ”Œ Grid Connection & Infrastructure

🏒 Development & Ownership

DeveloperFirst Hydro Company
Owner / operatorFirst Hydro Company
Construction started1956
Commissioned / target1961
LocationFfestiniog, Gwynedd, Snowdonia, Conwy, LL41 3TP
RegionWales
Coordinates52.9808325Β°N, 3.9688901Β°W

Additional published register fields

Registered technologyPumped Storage Hydroelectricity

πŸ“… Project Timeline

1956-01-01
1961-01-01