Power Production; The Unit Under Review Shows Low Production; Why Is One Unit Showing 0W Production When Adjacent Units Are Productive - enphase Microinverter System Reference Manual

Power Production

In this section, you will be using Enlighten for most troubleshooting procedures.

The unit under review shows low production.

Has shading been ruled out as a possible
cause?
The 7-day time-lapse playback will give you a
good idea whether a non-productive, or under
producing PV/inverter pair shows repetitive
production patterns that may be indicative
of shading. The following Enlighten snapshot
shows an example of a system with shading
impacts.
If the periods of low production are fairly con-
sistent and happen at the same time of day,
shading is likely the cause.
Other possible causes
See "Enlighten Messages and Alerts" for other possible causes of low production.

Why is one unit showing 0W production when adjacent units are productive?

This means the inverter is communicating, but not producing. A unit that is communicating,
but not productive, may be experiencing a DC side failure.
25 Copyright © Enphase Energy, Inc. 2011 06/15/2011