I had issues also, however it wasn't the panels fault. We found that a next-door neighbors Pine Tree was casting a large shadow on the panels. She agreed to let us cut it down and as soon as the shadow was gone, the meter started moving at warp speed. Also the panels are very dependent on light. Any type of over cast or rain days will cut into it severely. My bills, starting in 2018 went from +/- $450 to as little as $17. The avg. was about $110.
Mine didnt drop either...
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