Sorry to be late to the party to respond to this comment:
"The production spike in March looks unusual, but it's typically very sunny in March. Not sure why else it would spike though."
Solar panels like clear and cold. My solar arrays always put out more total kWh on a perfectly clear, cold winter day than on a perfectly clear, hot summer day, despite the total daylight hours being a good deal less through the winter. You'll note the rated output is always listed at 75 degrees, which should equate to ~ 60 degrees outside temp after you adjust for dark colors heating up more than light colors.
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