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Ffestiniog Pump Storage

Managing mid-life refurbishment

  • Wales


Increasing efficiency for a UK first in hydropower

Approved in the 1950’s, Ffestiniog Power Station was the United Kingdom's first major pumped storage project. When the mid-life upgrade of the 360-megawatt (MW) power station came due, our team was there to help.

We prepared technical specifications for the design-build refurbishment of the electro-mechanical plant and assisted with evaluating preferred mechanical and electrical tenders, contract negotiations, witnessing for turbine laboratory model testing, review of the contractor’s detailed designs, and engineering technical oversite during implementation. Our team also investigated the condition of the 200-metre high-pressure shaft for the supply of two of the four units. We inspected and undertook specialist concrete condition assessment and analysis of the existing lining, including finite element analysis, specifying repairs and providing support during the tender stage and subsequent works.

With the work now complete and a second refurbishment scheduled, the client will see improved unit availability, increased round trip efficiency and reduced risk of resonance, resulting in reliable, efficient units that support grid stability for the local community.

At a Glance

Meet Our Team

Marc Sheikh, Project Manager

Waterpower engineers have the opportunity of a generation to change the way we live. The challenge is immense, but so is the personal reward.

Jon Troke, Project Engineer

What I really enjoy is the variety of challenges my work brings and the inspirational people that I meet along the way.

Craig Scott, Hydropower and Dams Sector Leader, UK & Europe

I recognise that with every project there are many stakeholders involved—from governmental entities down to individual users of the energy.
Craig Scott Hydropower and Dams Sector Leader, UK & Europe Read More

Marc Sheikh

Project Manager

Jon Troke

Project Engineer

Craig Scott

Hydropower and Dams Sector Leader, UK & Europe

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