As battery energy storage systems (BESS) become an increasingly important part of the energy transition, delivering successful projects is no longer just about battery technology.
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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.
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 secures first BESS Asset Management contract in the Nordics
Göteborg, Sweden – 29 June 2026 – RES, the world’s largest independent renewable energy company, has signed an Asset Management Agreement (AMA) for the 70MW Ange BESS in Ånge municipality, Sweden. The agreement has been signed with Delta Capacity AG and Wood & Co, who acquired the project from RES…
Managing co-located projects: Turning hybrid complexity into performance
Across global renewables markets, hybrid and co-located projects are rapidly becoming the new standard. Pairing technologies such as solar and storage, or wind and storage, allows developers to maximise land use, improve grid stability and open up new revenue streams. The pace of adoption is accelerating, particularly in markets such…