Solis is a major brand for solar inverters, which are crucial components of solar power systems. They produce a wide range of inverters for residential, commercial, and utility-scale applications, including single-phase, three-phase, and hybrid inverters. They also offer accessories like data logging sticks and monitoring solutions.
The Solis S6-GC(80-125)K is a three-phase grid-tied string inverter for utility-scale and large C&I rooftop and ground-mount PV, available from 80 to 125 kW. It runs 8 or 10 MPPTs with up to 16–20 strings, accepts 42 A / 36 A per MPPT and a 1100 V max input. Peak efficiency is up to 98.7% (98.3% EU). Protection is comprehensive and integrated: DC switch, surge protection (DC Type II / AC Type II), AFCI 2.0 arc-fault protection, DC reverse-polarity, short-circuit, output overcurrent, anti-islanding, temperature and string monitoring, plus I/V curve scanning, real-time PV grounding detection and a night SVG function. The transformerless design carries an IP66 enclosure rated for harsh outdoor sites from -30 to +60°C.