Solar electric systems have no (or few) moving parts and operate almost silently (slight hum from inverters) so it's not that easy to see if your system is workingproperly. 

Microinverters Give You More Information
Microinverters have a great advantage when it comes to monitoring.  With microinverters, a system can easily be setup that allows you to see power production over time (today, last week, or since the system was first installed).  It can show you things like voltage, current, power, temperature and how it changes through the hours of the day or the months of the year.  All of this can be shown in an easy to read graphical interface so you can quickly scan it to see your system working properly.  This is valuable information to let you know your system is working properly.  

Instant Notification
Additionally, the system can be setup to send an email to you and your installer if a module or inverter fails.  This means you can have the problem fixed right away and not wait until you notice  your utility bill has increased. 

This should increase your system "up time" and produce more electricity, which is the main goal of a solar electric system. 


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Robert Morse
BSEE, MSEE
SunCal Solar, Incorporated
www.SunCalSolar.com