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

Other Technologies

With a focus on reliability and performance, our expert team ensures the seamless running of our customers assets, contributing to a sustainable and green energy landscape that powers progress without compromising the planet.

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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.

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.

Biomass

Biomass harnesses power through various processes that involve converting organic materials like plants, trees and waste into usable energy. Used for heating, electricity generation, and transport fuels, it offers a renewable and versatile energy solution. With our broad range of experience, our operations and maintenance service optimises the efficiency and performance of utility scale biomass power plants. 

Hydro

Hydroelectric power harnesses the energy of flowing or falling water to generate electricity. This is achieved by converting the gravitational potential or kinetic energy of a water source to produce power. Our highly skilled engineers and technical specialists provide first-class operations and maintenance support for hydropower plants, with the added value of our experience on Kaplan and Pelton Turbines. 

Our global reach

We’ve implemented clean energy projects in locations all over the world.

Our global reach

We’ve implemented clean energy projects in locations all over the world.

153
Americas
7
Australia
168
Europe

Latest Resources

Learn more about our projects

TALOS

roboTics and Artificial intelligence Living labs improving Operations in PV Scenarios Ref 101119744Topic HORIZON-CL4-2022-DIGITAL-EMERGING-02-07 — Increased robotics capabilities demonstrated in key sectors (AI, Data and Robotics Partnership) (IA)Start date 01/10/2024End date 30/09/2027 This document (the “Report”) has been prepared by Renewable Energy Systems Ltd (“RES”). RES shall not be deemed…

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RES and Artıbir Enerji Open a New Chapter in Türkiye’s Wind Energy Sector

Istanbul, Türkiye – 05 September 2025 – Artıbir Enerji, a Turkish renewable energy company and RES, the world’s largest independent renewable energy company, have signed Türkiye’s first long-term international and independent wind turbine operation and maintenance (O&M) contract. The agreement covers Artıbir Enerji’s Yeniköy and Yılmaz wind farms, located in…

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RES signs major solar O&M contract with Repsol for 1.5 GWp in the United States

Denver, US – 04 September 2025 – RES, the world’s largest independent renewable energy company, has signed a significant contract with Repsol to provide operations and maintenance (O&M) services for 1.5 gigawatts peak (GWp) of utility-scale solar projects in the United States. The agreement covers four major solar projects across Texas…

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