Microinverters make your overall system more reliable as they will continue producing power if one of the inverters fails. A string inverter based system is more likely to shut down because a single malfunction on the string means the entire system comes down. With microinverters, there is no single point of failure. Microinverters make your system easier to add onto and more versatile in the placement on your roof. String inverter systems are limited to 2-3 surfaces on your roof. Microinverters are also more efficient in variable sunlight because they work independently of one another.
