Glasgow, 17 July 2025 – RES, the world’s largest independent renewable energy company, has signed an agreement to manage what will become one of Europe’s largest battery energy storage systems (BESS), at a former coal mining site in South Lanarkshire, Scotland. The 500MW/1GWh Coalburn battery storage facility is being developed…
Solutions
Our passionate and experienced people deliver successful clean energy projects globally.
Technologies
Driving a clean energy future through state-of-the-art renewable technologies.
See all technologiesResources
Browse our latest resources, including company updates, customer stories, industry insights, and research reports.
See all resourcesCareers
Join a collaborative team of passionate individuals who engage in meaningful, stimulating, and world-changing work.
Learn moreAbout RES
We live our mission, celebrate the people making it happen and transform the way the world produces and consumes energy.
See about usOur offices
Like our business, we’re truly global – but proudly local. Find contact and location details for every RES office.
Contact us- Home
- Services
- Operations & maintenance
- BESS O&M
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 submits Nottinghamshire Steeple Renewables Project to the UK Planning Inspectorate
RES managed solar farm for illustration purposes RES, the world’s largest independent renewable energy company, has reached a significant milestone in advancing Steeple Renewables Project after its planning application was accepted for examination by the Planning Inspectorate. This means that all the required documents have been submitted to enable the…
Maximising energy generation and driving sustainability with innovative spare parts management
When equipment is offline due to spare parts delays, energy generation suffers. Effective spares management can mean the difference between saving millions in potential revenue or losing months of uptime. RES maintains a portfolio of 43GW of renewable assets across more than 1,300 facilities, so we know that every minute…