OTA technology has become an essential tool in the maintenance of smart energy systems. Traditionally, updating software, adjusting configurations, or diagnosing faults required physical access to each device, a process that could be both costly and time-consuming. With OTA, these tasks can be performed remotely, often without the need for human intervention. Energy systems can be updated in real-time, allowing for continuous improvements to software, firmware, and security protocols. In the case of maintenance, OTA solutions enable remote troubleshooting, diagnostics, and reconfiguration, reducing the dependency on physical inspections. This shift not only saves time but also ensures that systems are always up-to-date, enhancing their reliability and efficiency.