SolarEdge › power optimizers
Panel-level optimizers underproduce while inverter status stays green
reported more than once
Symptoms
The inverter/system status LED shows green and nothing looks wrong, but the monitoring portal shows some panels producing far less than others in identical sun (in one case as little as half), or a specific optimizer is already known-failed and awaiting replacement. Rule out shading first: a dip on a few panels that arrives at the same time of day and repeats identically across several sunny days in the monitoring layout's playback is shade moving across the array, not a hardware fault (folded here from SolarEdge's two shading-identification videos, cited in spine/solaredge_transcripts.py)
Alerts and codes
no communication with this optimizer41 of 42 panels found
The cause and the fix
Subscribers see the cause, the fixes that worked and who did them, part numbers and recent prices when a part is involved, and the field reports behind this entry.