Am looking to run 4x250w panels east faceing and same west faceing . I need to track them seperate with either 2 single inverters or 1 dual tracker inverter . Every inverter i look at seem to be border line with either dc start up voltage to high or dc amp to high . The panels are http://www.suntellitesolar.co.uk/wp-content/uploads/2012/09/ZDNY-C60++240w245w250w.pdf . 8 panels 4 per string .