Neat observation. I have 80 Enphase microinverters spread out over 6 strings. The Enphase microinverters range from M215 non-IG, M215 IG, to M250 models. I have yet to have a single microinverter fail, and even if one does, it's not a big deal, because the other 99% of my 20,000-Watt solar PV...