Which component provides online monitoring and performance data for the Enphase system?

• A. Installer Toolkit
• B. Enlighten
• C. Envoy
• D. Microinverters

Answer: (B)

Online monitoring and performance data for an Enphase system is provided by Enlighten, Enphase's cloud-based monitoring platform. Enlighten collects data from the system and presents real-time production, system status, and historical performance so homeowners and installers can track energy output and diagnose issues. The data shown in Enlighten comes from the microinverters through the Envoy gateway, which acts as the data collector and transmitter. The Envoy is essential for moving data to the cloud, but it is not the monitoring interface itself. Installer Toolkit is used for setup and configuration, not ongoing monitoring, and microinverters are the hardware that convert DC to AC and generate data, not the online monitoring surface.