The Ginlong Solis S6-GR3P series are three-phase grid-tie inverters, designed for reliable operation in installations where high performance culture and precise yield management are crucial. Their key advantage lies in the independent MPPT trackers, which facilitate energy production optimization under partial shading, different roof orientations, or segmented module strings - enabling the system to better utilize conditions throughout the day.
High European efficiency translates to significantly lower losses under typical operating conditions in Poland, delivering more energy to the grid annually, not just on paper. The series supports remote monitoring through the SolisCloud platform and app, along with flexible communication - depending on the configuration, solutions with WiFi, LAN/Ethernet, and RS485 are possible.
These are not hybrid inverters, so they are not intended for direct integration with energy storage systems. Their benefits are evident in residential installations and small/medium commercial systems, where grid connection standards (e.g., EN50549) and a long warranty (often 10 years) are required.
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The S6-GR3P series features 3 independent MPPT trackers (compared to the previous S5-GR3P series, which had 2), allowing for the operation of three separate string arrays with different orientations, tilt angles, or levels of shading, without compromising the performance of the remaining arrays. This is a direct advantage over dual-MPPT inverters in complex multi-pitched roof installations.
The S6 three-phase series achieves a maximum efficiency of 98.7% - a significant improvement compared to the previous S5-GR3P series (~97.1%). This high European efficiency translates to significantly lower conversion losses under typical Polish conditions (frequent partial loads), increasing the annual amount of energy delivered to the grid without increasing investment costs.
The ability to handle string currents up to 20 A and the permissible DC/AC oversizing of over 150% allow for the seamless connection of modern, high-power modules (600-700 W class) with high short-circuit currents (Isc). This eliminates the need to use additional optimizers solely due to the current characteristics of the modules.
Ginlong Solis is listed as one of the top three largest PV inverter manufacturers in the world by BloombergNEF (Q4 2023 update), and its bankability, confirmed by leading financial institutions, ensures lower risks of service and spare parts availability throughout the 10-year warranty period.
The series simultaneously supports RS485, WiFi, GPRS, and 4G (depending on the version), while the SolisCloud platform provides remote firmware updates, active/reactive power control, and monitoring that complies with the requirements of distribution network operators (OSD). Support for the EN50549 standard simplifies the connection process in Poland and other EU countries.
The S6-GR3P is a purely grid-tied inverter; it does not directly interact with any energy storage system. An investor planning to add batteries later must replace the device with a hybrid version (e.g., Solis S6-EH3P) or use an external EMS system, which adds to the overall cost. Alternatives such as SolarEdge SE with a battery or Huawei SUN2000 offer native battery expansion without replacing the inverter.
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About the S6-GR3P series
These answers cover the whole series. Where a figure differs, the specification above is this model's own.