Renewable Energy Systems (RES) is the largest independent renewable energy company in the world, founded in 1981 and based in Kings Langley, Hertfordshire, UK. With over 40 years of experience, RES operates in 24 countries and employs more than 4,500 people. The company focuses on the development, financing, construction, and management of renewable energy projects, including wind, solar, energy storage, biomass, hydro, and green hydrogen.

RES has successfully delivered over 24 GW of renewable energy projects globally and manages more than 41 GW of renewable assets across 1,300 sites. Their services encompass the entire project lifecycle, from development and construction to operations and maintenance. They also offer advanced technology solutions, such as the IdentiFlight Aerial Detection System for wind projects. RES serves a diverse range of clients, including utilities and asset owners, providing tailored power solutions that support the transition to a zero-carbon energy future.