Repairs on panels are virtually impossible but failure rates have been very low on top brands. Q.Cells, ET, Canadian, Schott, Jinko, REC, LG, Suntech, Hanwha, Yingli are the top brands. Buy one of those and you won't have to worry about failed panels in the future.
A high voltage electrical installation is not set and forget. It needs regular checks. It's quick, cheap and something that only needs to happen once a year but if you want the most from your solar, whether you bought it from us or not, then talk to us about annual cleaning and servicing.
SMA, Growatt, Sungrow, Fronius, JFY, Zeversolar, Delta, ABB PowerOne/Aurora, CMS, Goodwe, Suntellite, Zeus Appollo (ZA), Xantrex, Samil Power, SolarEdge, Enphase, APS, Schneider, Rewatt, Renesola, Eaton, KLNE, Bosch