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Technologies

Hydro

Using our wealth of operations and maintenance experience we maximise the positive contributions of hydropower to a net-zero future.

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What is Hydropower?

Hydroelectric power, one of the cleanest and most sustainable technologies, is a renewable source that harnesses the power of moving water (rivers or reservoirs) to generate electricity. It works by passing water through turbines that convert kinetic energy into mechanical energy and then into electrical energy using a generator. In addition, it allows water flow to be regulated and energy to be stored, contributing to the stability of the electrical system.

Why RES?

Our people-first approach and decades of experience has led to the development of robust systems of work, ensuring your assets perform safely and reliably.

Solutions are tailored to meet your specific needs, whether that’s long-term support or standalone services for individual projects.

Exemplary health and safety performance

A secure work environment that puts people first, delivering best-in-class health and safety performance.

Technical expertise

Highly skilled engineers and technical specialists provide first-class operations and maintenance support, with the added value of our experience on Kaplan and Pelton Turbines.

24/7 support

Our operational control centre is always accessible, giving you continuous support.

Decades of experience

Building and delivering innovative and tailor-made solutions that work for you.

Comprehensive service

Our skilled engineers go beyond just boots on the ground, focusing on delivering competitive and comprehensive services to boost revenue and decrease costs.

What we offer

We specialise in the operation and maintenance of hydroelectric power plants, keeping them safe, efficient and ready for the future. Our team combines decades of hands-on expertise with innovative solutions to ensure every asset performs at its best.

By tailoring our support to each facility, we help operators maximise availability, extend asset life and contribute to a sustainable net-zero future.

  • Operation of power stations and associated facilities
  • Preventive, predictive, corrective and regulatory maintenance
  • Inspections & reviews
  • High voltage services (HV)
  • Spare parts management
  • 24/7 remote monitoring and fault reset
  • Unplanned maintenance
  • Performance guarantees

  • Replacement of major components
  • Asset upgrades and modernisation campaigns
  • Condition monitoring and SCADA analysis
  • Life extension, repowering and decommissioning
  • Energy performance analysis and optimisation

Latest resources

Read our latest news and blogs.

Why BESS projects stall at commissioning: the integration risk beyond the battery

As battery energy storage systems (BESS) become an increasingly important part of the energy transition, delivering successful projects is no longer just about battery technology.

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Meet Francisco Nunes, RES’ Regional Director LATAM

Francisco Nunes is RES’ new Regional Director for Latin America. He leads RES’ services business across the region, where RES delivers operations and maintenance (O&M) and asset management for wind and solar assets. Francisco has more than 18 years’ experience in the renewable energy sector, starting as a commissioning technician…

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RES’ Smart Pilot tech now flies on smaller, lower-cost drones 

São Paulo, Brazil – 26 October 2026 – RES, the world’s largest independent renewable energy company, has made its Smart Pilot turbine blade inspection technology available for smaller drones, including the DJI Matrice 4E. These smaller drones cost less than their larger counterparts and deliver comparable image quality in good…

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