Our hydro generator capabilities

Whether you’re planning an upgrade, addressing a performance issue, or responding to an unexpected outage, fast and knowledgeable support is critical. Hydro generator insulation systems typically require rewinding after 40–50 years. Refurbishment offers the opportunity to redesign stator coils for improved insulation and efficiency. Using advanced modeling software, we optimize performance with new coils and cores.

From compact units to large-scale hydro generators, Sulzer provides complete rewind solutions and re-engineers replacement parts to extend service life and boost performance.

Field service Engineering Coil manufacturing

Watch how Sulzer restored power at Dinas Station

Hydropower generators are built for long-term reliability, but aging equipment can fail unexpectedly. When Statkraft faced a generator failure at Dinas Power Station, Sulzer’s expert teams delivered a fast, safe, and efficient repair—minimizing downtime and restoring performance. Watch the video to see how Sulzer made the difference.

White paper

How Sulzer extended the life of a legacy UK hydropower plant

 

As the energy transition accelerates, maintaining existing renewable assets is just as important as building new ones. Many UK hydropower stations have delivered reliable, low carbon electricity for decades, but now require expert refurbishment to continue performing at their best.

 

This white paper highlights how Sulzer successfully overhauled a hydro generator at a Welsh power station, restoring performance and extending its service life for years to come.

Download relevant hydro generator services content

Brochure

High voltage coil manufacturing for hydro power generation

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White paper

Regenerated after 58 years of service

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