First Hydro Picks GE Vernova to Replace Two 315 MW Units at Dinorwig
First Hydro Company has selected GE Vernova to modernize the first two units of the Dinorwig pumped storage hydropower plant in North Wales, UK, according to a GE Vernova press release. First Hydro Company is a 75:25 joint venture between ENGIE and La Caisse.
The scope covers the replacement of two 315 MW units, work GE Vernova says is intended to improve the plant's reliability, availability and efficiency. The company booked the order in Q2 2026.
Dinorwig's value to the system is speed. GE Vernova said the station delivers up to 1,320 MW within 12 seconds from standby, and up to 1,800 MW in under a minute. The modernization programme is expected to extend the plant's life by at least 25 years, according to the release.
ENGIE and La Caisse own and operate both Dinorwig and the Ffestiniog pumped storage station in North Wales through First Hydro Company. The two sites together provide 2.1 GW of installed capacity and account for around 74% of the UK's pumped storage hydro capacity, GE Vernova said.
The supplier describes itself as one of the largest players in global pumped storage, with nearly 30% of the installed base worldwide. It is currently developing more than 3 GW of pumped storage projects internationally, according to the same release.
Source: gevernova.com (opens in a new tab)1 sourcePermalink