Battery energy storage system (BESS) commissioning is often underestimated as a simple extension of installation. In practice, it is a critical validation phase that determines long-term system reliability, safety, and performance.

Common issues encountered during commissioning include configuration mismatches between battery management systems, power conversion systems, and site controllers. These inconsistencies can lead to nuisance alarms, reduced availability, or unexpected derating. Thorough parameter verification and staged functional testing are essential to confirm correct system behavior under both normal and abnormal operating conditions.

Successful commissioning requires disciplined procedures, clear documentation, and close coordination between EPCs, OEMs, and commissioning engineers. When executed methodically, commissioning becomes a risk-reduction exercise that protects asset value throughout the system lifecycle.