I think J.P.M is right on the money. The OP has microinverters and for comparison, I calculated my % of STC of my two year old system to be 88% today. Today is a bright, clear, cold, windy day. I figured the OP had 97% efficient microinverters and ~1% accuracy on the Sunpower PVS6. I could not find any specs on the PVS6. Accuracy could be worse, who knows.
I always weigh the cost vs. benefit for cleaning my panels. Ash from last fall's wildfire season caused me to wash my panels. Other than that, I don't worry about it.
When I did wash my panels, I used a safety harness. It only takes one mistake to make all the cleaning in the world not worth it.
I always weigh the cost vs. benefit for cleaning my panels. Ash from last fall's wildfire season caused me to wash my panels. Other than that, I don't worry about it.
When I did wash my panels, I used a safety harness. It only takes one mistake to make all the cleaning in the world not worth it.
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