ENGIE, La Caisse pick GE Vernova to replace two 315-MW units at Dinorwig pumped storage plant in UK

ENGIE, La Caisse pick GE Vernova to replace two 315-MW units at Dinorwig pumped storage plant in UK.

• First Hydro, a 75:25 ENGIE–La Caisse venture, selected GE Vernova to modernize the first two units at the Dinorwig pumped storage plant.
• Scope centers on replacing two 315 MW pumped storage units to lift reliability, availability, efficiency, supporting UK grid stability.
• Order booked in Q2 2026; work is part of a wider Dinorwig replanting program targeting at least a 25-year life extension.
• Dinorwig can deliver up to 1,320 MW within 12 seconds from standby, underscoring the asset’s strategic role in fast-response capacity.