Which of the following steps is not required during commissioning?

• A. Setting tariff rate schedule
• B. Creating virtual array
• C. Assigning serial numbers
• D. Verifying device firmware

Answer: (A)

During commissioning, the focus is on making sure the hardware and monitoring setup can communicate correctly and that each device is identified and configured for proper operation. Creating a virtual array helps the monitoring software group multiple inverters and modules so performance data is accurate and easy to view. Assigning serial numbers ties every device to the system inventory, ensuring the software maps the correct devices to the right locations. Verifying device firmware checks that all components are running compatible, secure software versions, which is important for reliability and future updates.

Setting a tariff rate schedule, while important for billing and export rules, is not part of the on-site commissioning process. That step deals with energy billing rules and utility or monitoring-platform configuration, and it does not affect the immediate operation, identification, or communication of the installed hardware.