A solar panel in your array will be grey if no energy has been reported for the period you are viewing. The panel may not have woken up for the day; perhaps it is the last to receive the sun. Or the panel may be experiencing a communication disruption in reporting its data to your Envoy. When communications are restored, all the data from the period of the communication disruption will be reported and displayed. Snow cover will affect energy production and communication of microinverters.
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