This document is a detailed guide for Commissioning of a new Uninterruptible Power Supply system (UPS). The commissioning is best performed by an independent, third party, commissioning agent (CA) that is not employed by either the equipment vendor or the installer. This guide outlines the step-by-step process of the key steps to commissioning a UPS system, helping you understand what to expect when an engineer commissions. The purpose of generating this method statement is to define the procedure step by step to implement the correct practices for UPS System Testing and Commissioning through the guidelines contained herein so as to ensure that the job execution complies with specification and serves the intended. This document is a detailed guide for Commissioning of a new Uninterruptible Power Supply system (UPS). Before starting the UPS installation work, user manual must be thoroughly read and understood. What is UPS Commissioning? Verifying proper electrical connections during the start-up and commissioning of a UPS system is crucial for ensuring the safety of. Commissioning builds a solid foundation for improved reliability, higher efficiency, reduced costs, enhanced safety, fewer repairs, quicker service and longer UPS lifespan.