Bought late summer and never saw more than 85 watts from it. However, I cannot fault the panel for bad sun. I may update this next season. The only issue I have is that the footpegs are small and flimsy. It's a chore to get all four set correctly, and if you re-set after the sun changes, it's another chore to repeat. You'll do this three to four times per charge, so it quickly becomes tiresome. The fabric also seems to pick up dirt and grit easily, so it needs to be kept clean before storage. Another small issue is the weight. This is a set of four 30-watt panels and is surprisingly heavy. Or rather: tight. However, it weighs half the weight of a single sheet of glass and is MUCH more portable. As long as I'm happy Let's see what the summer of the 21st brings.