Ginlong Solis S6-GC3P K03-NV-ND is a three-phase grid-tie inverter designed for small and medium-sized commercial installations - where high energy production, predictable performance, and fast diagnostics matter. The K03 variant features 3 independent MPPTs, facilitating string design for various roof orientations, uneven soiling, or partial shading - each tracker can operate optimally, rather than pulling down the entire system. In practice, this translates to more stable yields in typical conditions for warehouse roofs, office buildings, and service facilities.
The series also benefits from high European efficiency, meaning real performance in varying operating conditions, ensuring more energy from modules goes into the grid annually. Additionally, smart monitoring and O&M tools are available, including diagnostic functions and remote monitoring via the SolisCloud platform, as well as communication through standard interfaces (e.g., RS485, WLAN, Bluetooth). The IP66-rated enclosure and security set facilitate safe operation in demanding environments, while available certifications and warranty terms support formalities for investments in Poland.
Ranking
Specifications
Pros and cons
The K03 variant is equipped with 3 independent MPPT trackers, each capable of handling up to 20 A and a DC voltage range of 180-1000 V. In installations on the roofs of warehouses or office buildings with different orientations or uneven shading, each string can operate at its optimal power point, rather than reducing the overall system's output - a key advantage in the C&I (Commercial and Industrial) segment.
The maximum efficiency specified by the manufacturer is 98.6-98.8%, placing the series in the top quartile of 25-40 kW commercial three-phase inverters. The high European efficiency (taking into account variable solar conditions) directly translates to a higher annual energy yield in central European conditions.
The IP66 protection class safeguards electronics against dust and powerful water jets, which is crucial when installing equipment on the roofs of industrial and warehouse buildings. The integrated AFCI (DC arc fault detection) system meets the increasing safety requirements for commercial buildings.
The inverter supports a DC/AC ratio above 170%, which allows for flexible design of the PV array using modern, high-power modules (182 mm and 210 mm formats). This enables maximizing energy production during peak hours without over-sizing the AC side of the inverter.
Ginlong (Solis) is listed on BloombergNEF's Tier 1 PV Inverter Manufacturers list (since Q4 2023) and is the third-largest photovoltaic inverter manufacturer in the world. The Tier 1 status facilitates investment financing and meeting the requirements for bankability in commercial projects in Poland.
The "ND" (No Display) suffix indicates the absence of a local LCD panel. Reading operating parameters on-site requires a connection to an external datalogger (e.g., a Wi-Fi/LAN module) or the SolisCloud mobile app - this can be a limitation during quick on-site troubleshooting without internet access.
Alternatives
About the S6-GC3P K03-NV-ND series
These answers cover the whole series. Where a figure differs, the specification above is this model's own.