Solutions

Our passionate and experienced people deliver successful clean energy projects globally.

Our offices

Like our business, we’re truly global – but proudly local. Find contact and location details for every RES office.

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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.

ACP Operations, Maintenance & Safety Conference 2026

From March 4-6, RES will be attending the Operations, Maintenance & Safety Conference organized by American Clean Power in Orlando Florida. The event will see 2,000+ attendees come together to discuss advancing the safety and efficiency of the clean energy workforce but extends to discussions on leadership, emergency response planning,…

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Blades USA 2026

From 23-24 Blades USA, is the premier U.S. industry conference dedicated to the performance, technology, and lifecycle management of wind turbine blades. Bringing together engineers, materials scientists, asset owners, OEMs, and operational experts, this event provides a dynamic platform to share insights, explore cutting-edge technologies, and build strategic connections that…

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RES signs its first services contract with Matrix Renewables and boosts its solar growth in Spain​​ 

Albacete, Spain – 25 November 2025 – RES has signed its first operation and maintenance (O&M) contract with Matrix Renewables, an independent power producer backed by the TPG Rise investment fund and one of the fastest-growing players in the international renewable energy sector.   The contract covers the O&M of more…

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