We back up to a golf course. Over the past 7 years, we have 4 of our 30 panels that have taken bad golf ball strikes which have fragmented the glass throughout the panel with sizable cracks surrounding the impact point - basically a small crater.
I'm wondering how bad the production loss is likely to be from these 4 damaged panels.
We don't have the micro inverters on each panel, just 2 central inverters. On an inverter string, does each panel perform without regard to the other panels? Or is their output reduced to that of the lowest performing panel on the string?
If all panels on the string are reduced, then I'm thinking it would be prudent to go ahead and spend the money to replace the 4 damaged panels. If the only impact to the production is that 4 panels produce a little less power but the rest of the system is unaffected, I'm not as inclined to spend the money. If the likely result is that 4 panels produce no power, but that doesn't impact the rest of the string, then I have some more thinking to do.