RES secures flagship UK battery storage O&M contract with Elements Green

14 August 2025, Hertfordshire – RES has secured a major operations and maintenance (O&M) contract for the Staythorpe Battery Energy Storage System (BESS) in Nottinghamshire, United Kingdom.

The contract was awarded by Elements Green, a leading European clean tech developer, marking a significant milestone in RES’ continued expansion in the battery storage market.

At 360 MW / 720 MWh, Staythorpe is set to become one of Europe’s largest grid-scale battery storage assets once operational. The five-year O&M contract, due to commence in 2026, underlines RES’ growing reputation as the partner of choice for managing complex, high-capacity energy infrastructure.

This latest win builds on RES’ momentum in the energy storage sector and follows a series of recent O&M successes across Europe.

Manuel Sánchez, Global Head of O&M Services at RES, said: “We’re proud to be supporting Elements Green on such a transformative project. This contract not only strengthens our presence in the UK, but also highlights the trust placed in our technical and operational expertise. Staythorpe is a strategically significant project and a strong vote of confidence in RES’ ability to deliver best-in-class performance on battery storage assets.”

The Staythorpe contract marks the beginning of a strategic partnership between RES and Elements Green, and paves she way for future collaboration across a growing pipeline of storage assets in Europe.

James Gates, Chief Investment Officer, at Elements Green, said: “We’re delighted to partner with RES on the Staythorpe project, which is set to be a cornerstone of the UK’s energy transition. As we scale our battery storage portfolio, having a trusted O&M partner with deep technical expertise and a strong track record is essential. RES stood out for its clear operational strategy, high-voltage capability, and commitment to long-term asset performance. We look forward to building a strong and strategic partnership together.”

ENDS

About RES

RES is the world’s largest independent renewable energy company, working across 24 countries and active in wind, solar, energy storage, green hydrogen, transmission, and distribution.  An industry innovator for over 40 years, RES has delivered more than 28GW of renewable energy projects across the globe and plans to bring more than 26GW of new capacity online in the next five years. 

As a service provider, RES has the skills and experience in asset management, operations and maintenance (O&M), and spare parts – supporting 43GW of renewable assets across 1,300 sites.  RES brings to the market a range of purposeful, practical technology-based products and digital solutions designed to maximise investment and deployment of renewable energy. 

RES is the power behind a clean energy future where everyone has access to affordable zero carbon energy bringing together global experience, passion, and the innovation of its 4,500 people to transform the way energy is generated, stored and supplied. Visit: www.res-group.com

About Elements Green

Elements Green is a renewable energy developer/IPP focused on large-scale solar PV and battery energy storage systems (BESS) across the UK, Germany, Italy and Australia.

Headquartered in London the company has local offices globally and is actively developing a pipeline of 13GW. With a commitment to accelerating energy transition, the company delivers utility-scale projects that support decarbonisation, energy security, and grid stability.  As the group continues to grow, we are looking to build on our track record of innovation, collaboration, and long-term impact.

CONTACT FOR MORE INFORMATION:

Rory Brown

RES Press Office

+44 7436 144 750

[email protected]