Protect Your BESS Investment With Professional ESS Operations & Maintenance
Solunar provides O&M support for commercial, industrial and utility-scale ESS projects to help asset owners maintain safety, performance, uptime and long-term system value.
Why ESS O&M matters
A Battery Energy Storage System is a long-term infrastructure asset. Its value depends not only on the quality of the battery, but on how well the system is operated, monitored, maintained and protected over time.
For ESS assets, O&M is not optional — it is essential.
The risks of neglected O&M
Without proper O&M, ESS projects may face:
- Lower system availability
- Battery degradation issues
- Poor charging and discharging performance
- PCS or EMS faults
- Thermal management issues
- Safety risks
- Warranty disputes
- Revenue loss from downtime
- Reduced investor and lender confidence
Solar O&M vs BESS O&M
BESS O&M is not the same as solar O&M — it adds the battery, software and safety dimension.
| O&M Focus | Solar PV | BESS |
|---|---|---|
| Hardware | Panels, inverters | Battery, PCS, EMS, cooling, fire systems |
| Monitoring | Generation, yield | SoC, SoH, temperature, alarms |
| Software | Inverter firmware | EMS logic, firmware coordination |
| Safety | Electrical | Thermal, fire suppression, emergency shutdown |
The Solunar O&M approach
We help asset owners move from reactive maintenance to proactive asset management, focusing on:
- Preventive maintenance
- Remote monitoring
- Performance optimisation
- Fault detection
- Safety inspection
- Battery health tracking
- PCS and EMS coordination
- Incident response support
- Warranty and reporting support
Our O&M scope
Solunar can support ESS projects with:
- Regular site inspection
- Battery system health check
- Thermal management inspection
- Fire safety system inspection
- PCS performance review
- EMS control review
- Electrical system inspection
- Remote monitoring dashboard
- Alarm and fault analysis
- Preventive maintenance schedule
- Performance reporting
- Spare-parts coordination
- Technical troubleshooting
- Annual maintenance planning
Remote monitoring & performance tracking
ESS projects must be monitored continuously. Solunar helps track key parameters such as:
- State of Charge
- State of Health
- Charge and discharge cycles
- Battery temperature
- PCS performance
- System availability
- Fault alarms
- Energy throughput
- Peak-shaving performance
- Solar-charging performance
- Battery degradation indicators
O&M for different project types
We scope O&M to the asset, not a one-size package:
Commercial & Industrial BESS
For factories, malls, commercial buildings, industrial parks and EV charging sites.
Solar + BESS projects
Where battery performance must be coordinated with solar generation and load.
Utility-scale ESS farms
Large assets requiring structured monitoring, reporting and technical support.
Investor-owned ESS assets
For funds and asset companies needing long-term performance visibility.
Frequently Asked Questions
It depends on asset size, location, monitoring scope and response requirements. Solunar scopes O&M to the project rather than offering a one-size package.
Often yes — subject to a technical review of the installed battery, PCS, EMS and safety systems and the available documentation.
A BESS is only valuable when it performs safely and consistently over its lifetime.
Let Solunar help you protect your ESS asset with professional O&M support.