--- title: "Ginlong Solis S6-GC75K-LV Grid-tie Inverter: Specs & Datasheet | ComparePV" description: "Ginlong Solis S6-GC75K-LV 75 kW grid-tie inverter. Specs: 98.3% European efficiency, 1100 V max DC input." source: "https://comparepv.com/inverter/ginlong-solis-s6-gc75k-lv" updated: 2026-01-17 --- # Ginlong Solis S6-GC75K-LV ## Identity - **Manufacturer:** Ginlong Solis - **Model:** S6-GC75K-LV - **Series:** S6-GC K-LV - **Rated AC power:** 75 kW - **Type:** Grid-tie - **Phases:** Three-phase ## How it compares Compared against 243 inverters from 30 to 100 kW. Ranks are within that class. | Measure | This inverter | Class median | Standing | Rank in class | | --- | --- | --- | --- | --- | | European efficiency | 98.3% | 98.2% | Typical | 39 | | MPPT trackers | - | 4 | | | | Max DC input voltage | 1100 V | 1100 V | Typical | 3 | | Weight per kW | - | 1.1 | | | | Warranty | - | 5 yrs | | | ## Specification ### AC output - **Rated AC power:** 75 kW - **Max apparent power:** 75.00 kVA - **Phases:** Three-phase - **Nominal AC voltage:** 230 V - **Max AC current:** 196.8 A - **Power factor:** 0.8 leading - 0.8 lagging - **Harmonic distortion (THD):** 3.0 % ### PV input - **Max DC voltage:** 1100 V - **MPPT voltage range:** 160 to 1000 V - **Start-up voltage:** 180 V - **Max input current per MPPT:** 42.0 A - **Max short-circuit current per MPPT:** 50.0 A ### Efficiency - **European efficiency:** 98.3 % - **Max efficiency:** 98.7 % ### Physical - **Dimensions:** 567 × 1014 × 345 mm - **Enclosure:** IP66 - **Cooling:** forced-air - **Operating temperature:** -30 to 60 °C - **Max humidity:** 100 % - **Max altitude:** 4000 m ### Connectivity and protection - **Interfaces:** Wi-Fi, Display - **Protocols:** RS485, Wi-Fi (optional), GPRS (optional), PLC (optional) - **Protection:** AFCI, DC switch, Surge protection ### Warranty and certificates - **Certifications:** IEC 61727, IEC 62116, C10/11, VDE 4105, IEEE 1547, IEC/EN 62109-1, IEC/EN 62109-2, IEC/EN 61000-6-2, IEC/EN 61000-6-4 ### Pros - **Maximum efficiency of 97.7% and CEC of 97.0%** - The S6-GC30K-LV model achieves a maximum efficiency of 97.7% and a CEC efficiency of 97.0%, placing it among the leading three-phase commercial inverters. In the Polish climate (variable solar irradiance), the high efficiency over a wide power range directly translates to better annual energy savings. - **Built-in AFCI (Arc Fault Circuit Interrupter) and string diagnostics** - The series is standardly equipped with AFCI (Arc Fault Circuit Interrupter) protection and I-V curve scanning and string-level monitoring functionality. This is uncommon in the entry-mid-range commercial segment - many competitors (such as Huawei SUN2000-L1 or Fronius Eco) offer AFCI as an optional or unavailable feature. - **3-8 independent MPPT controllers (depending on power)** - Models in the 23-125 kW range feature between 3 and 8 MPPT (Maximum Power Point Tracking) strings with an input current of up to 40 A per string, enabling the use of roof sections with varying orientations and bifacial modules without significant mismatch losses - a key advantage for complex commercial roof geometries. - **BNEF Tier 1 - The third-largest producer** - Ginlong Solis has consistently been classified as Tier 1 by BloombergNEF and remains the third-largest manufacturer of PV inverters worldwide. Its bankable status makes it easier for financing institutions to fund PV farm projects, as it provides confirmation of the supplier's credibility. - **Reliability: Failure rate of less than 0.3%** - Ginlong provides an uptime indicator below 0.3% (99.7% reliability) based on field data from long-term installations. When combined with the SolisCloud platform (WLAN/RS485/Ethernet/LTE) and remote diagnostics, this reduces the time required for service interventions, which is critical for commercial facilities with Service Level Agreements (SLAs) for availability. ### Cons - **SolisCloud platform - limited analytics** - SolisCloud provides basic monitoring, but independent reviews (SolarTechOnline 2025) indicate that it lacks advanced predictive analytics and flexible API integrations, which are offered by Huawei FusionSolar and SMA Sunny Portal Premium. This could be a limitation when integrating with enterprise-level SCADA systems. ## About this series The Ginlong Solis S6-GC K-LV series comprises three-phase grid-tie inverters designed for low-voltage installations, specifically tailored for farms and commercial sites where high energy yield and easy maintenance are crucial. Equipped with multiple MPPT (depending on the variant), this inverter facilitates managing strings on different roof tilts and performs better under partial shading-rather than dragging down the entire system, it precisely optimizes the operation of each section. The high European efficiency translates to significantly lower losses under typical operating conditions in Poland, resulting in more stable annual energy production. In practice, its focus on safety stands out, including AFCI (lightning protection) and diagnostic features such as I-V curve scanning and string monitoring, which speeds up service and maintenance. The SolisCloud monitoring system and communication options (e.g., WLAN/RS485, often including integration with higher-level systems) are available. This series meets the required EU standards (including EN 50549) and comes with a manufacturer’s warranty, the specifics of which depend on distribution-be sure to confirm it with the seller for the specific model. ## Questions ### How many MPPT (Maximum Power Point Tracking) inputs does the Solis S6-GC K-LV inverter have, and is that sufficient for a commercial building installation? Depending on the power configuration, the S6-GC K-LV series offers 3 or 4 independent MPPT inputs, each capable of handling multiple strings. This allows you to connect strings of panels facing different directions or on different roof areas without compromising the performance of the entire system. For a typical commercial building or small farm, this number of MPPT inputs is sufficient and significantly simplifies the design of the system. ### What is the standard warranty for the Solis S6-GC K-LV inverter? Ginlong Solis offers a standard manufacturer's warranty for the S6-GC K-LV series, the length of which depends on the distributor and the sales region. In Europe, a 5-year warranty is most commonly offered, with the option to extend it to 10 years for an additional fee. It is advisable to confirm the exact terms directly with the seller before making a purchase, as they may vary depending on the contract. ### What is the AFCI (Arc Fault Circuit Interrupter) in the Solis S6-GC K-LV inverter, and why is it important to pay attention to it? AFCI (Arc Fault Circuit Interrupter) is an integrated DC-side arc fault protection system. An electrical arc on a damaged cable or connection can cause a fire before a traditional overcurrent protection device activates. The S6-GC K-LV series inverters detect the characteristic current disturbances that indicate an arc and automatically disconnect the circuit. In commercial and farm settings, where regular inspection of the installation is limited, AFCI significantly enhances fire safety. ### Is the Solis S6-GC K-LV inverter suitable for a solar farm or a large industrial facility? Yes, the S6-GC K-LV series is specifically designed for commercial installations and farms. Its three-phase AC output, high nominal power, and the ability to connect multiple units in parallel allow for the creation of extensive systems. Diagnostic features, such as I-V curve scanning and string monitoring, simplify maintenance and enable quick identification of problems in large arrays of panels, which directly translates to reduced production losses. ### How does the SolisCloud monitoring system work for the S6-GC K-LV series, and what can it track? SolisCloud is a cloud platform from Ginlong Solis, accessible via a web browser and a mobile app. Once the inverter is connected via Wi-Fi or RS485, you can remotely monitor the current energy production, the efficiency of individual strings, the history of alarms, and the device's operating parameters. For commercial installations, the platform also allows integration with higher-level systems via API, which is useful for managing larger portfolios of installations. ### Does the Solis S6-GC K-LV inverter meet the requirements of the EU market, including those in Poland? Yes, the S6-GC K-LV series is designed to meet the requirements of the European market and complies with the EN 50549 standard, which specifies the requirements for generators connected to low-voltage grids. The inverter supports the functions required by network operators in Poland, such as reactive power control and active power limiting. However, it is advisable to confirm the specific settings with the local distributor or energy supplier before operation. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/inverters/solis-datasheet-s6-gc-50-75-k-lv-phl-v2-0-202410-13ccfa347534.pdf) ## Alternatives | Inverter | Rated AC | Euro efficiency | MPPT | Weight | Difference | | --- | --- | --- | --- | --- | --- | | [GoodWe GW75KBF-MT](https://comparepv.com/inverter/goodwe-gw75kbf-mt) | 75 kW | 98.4% | 4 | 65.0 kg | Similar on paper | | [GoodWe GW75K-MT](https://comparepv.com/inverter/goodwe-gw75k-mt) | 75 kW | 98.3% | 4 | 70.0 kg | Similar on paper | | [Deye SUN-75K-G03](https://comparepv.com/inverter/deye-sun-75k-g03) | 75 kW | 98.3% | | 81.0 kg | Similar on paper | | [Deye SUN-75K-G](https://comparepv.com/inverter/deye-sun-75k-g) | 75 kW | 98.3% | 4 | 60.0 kg | Similar on paper | | [SOFAR 75KTLX-G4-LV](https://comparepv.com/inverter/sofar-solar-sofar-75ktlx-g4-lv) | 75 kW | 98.0% | | 75.0 kg | Similar on paper | | [Growatt MAX 70KTL3 LV](https://comparepv.com/inverter/growatt-max-70ktl3-lv) | 70 kW | 98.5% | | 86.0 kg | -5.0 kW | | [Growatt MAX 80KTL3 LV](https://comparepv.com/inverter/growatt-max-80ktl3-lv) | 80 kW | 98.5% | | 86.0 kg | +5.0 kW | | [SOFAR 70000TL-HV](https://comparepv.com/inverter/sofar-solar-sofar-70000tl-hv) | 70 kW | 98.4% | 3 | 70.0 kg | -5.0 kW | --- Source: https://comparepv.com/inverter/ginlong-solis-s6-gc75k-lv