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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Operations & Maintenance

Battery Energy Storage Systems (BESS) O&M

We provide increased asset performance and unparalleled outage management for battery energy storage systems.

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Minimising downtime, maximising performance

Managing a range of storage revenue contracts for owners, we take a proactive approach and identify opportunities for making improvements, supported by our deep technical and commercial understanding.

We also have a rigorous high voltage management system with internal HV teams, authorised to operate and maintain HV assets ensuring rapid response times and minimising downtime.

Why RES?

With specialists in SCADA, condition monitoring, performance analysis, system design and more, you can trust RES to safely manage your battery energy storage assets.


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 and monitoring.

Analysis and optimisation

Using in-house developed diagnostic tools, we analyse all sources of data to increase performance and maintain asset value.

Spares management

Our novel and sophisticated parts management process helps your projects perform more efficiently and reduces downtime.

What we offer

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

  • HV services​
  • Asset upgrades and retrofit campaigns ​
  • Preventative (scheduled maintenance​, inspections​, audits and asset health assessments​)
  • Corrective (unscheduled maintenance​, performance warranties​, major component replacement)
  • 24/7 remote monitoring ​

  • Condition monitoring and SCADA analysis​
  • Supervision ​
  • Decommissioning​
  • Parts supply / resale and repair
  • RESolve EMS / PPC​
  • Fire systems & security​

Latest Resources

Learn more about our projects.

RES awarded asset management contract for UK’s first transmission-connected co-located solar and storage facility

RES, the world’s largest independent renewables company, has been awarded the asset management contract for the landmark Larks Green project, the UK’s first co-located solar and battery energy storage system connected to the transmission network. Developed by Enso Energy and owned by Cero Generation, the site near Bristol combines 70MW…

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How RES is Making Renewables Reliable: Powering Energy Security During the Transition

The renewable energy transition presents a challenge: how do we ensure energy security while integrating intermittent power sources into the grid? At RES, our grid experts lead the way with innovative solutions and decades of experience to ensure reliable and secure energy systems. Leveraging unparalleled expertise and a proven track…

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Energyear Investment, Solar & Storage

The second edition of Energyear Investment Solar & Storage will take place on the 26th and 27th of November at the Hilton London Metropole. This key event for the renewable energy industry in the UK and Europe will bring together over 350 decision-makers, providing a unique platform to explore the…

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