System Monitoring
Above is a screen shot from the Enlighten Monitoring system through Enphase, The micro-inverter manu
Monitoring is a very important aspect of your system. It is always great when a company says they are going to monitor the system for you, but you want access to it yourself. Not only access, but full view individual panel monitoring. Here is a screenshot of the Enphase Micro-inverter monitoring. If anything happens to a panel or micro-inverter or panel, you can see exactly which one it is.
SolarEdge allows per panel monitoring access through the power optimizer technology, but you are still dealing with a single point of failure.
String inverters are unable to give you any per module unfortunately.