--- title: "Ginlong Solis S5-GC25K-LV Grid-tie Inverter: Specs & Datasheet | ComparePV" description: "Ginlong Solis S5-GC25K-LV 25 kW grid-tie inverter. Specs: 98.0% European efficiency, 4 MPPT, 1100 V max DC input, 53.7 kg." source: "https://comparepv.com/inverter/ginlong-solis-s5-gc25k-lv" updated: 2026-01-17 --- # Ginlong Solis S5-GC25K-LV ## Identity - **Manufacturer:** Ginlong Solis - **Model:** S5-GC25K-LV - **Series:** S5-GC K-LV - **Rated AC power:** 25 kW - **Type:** Grid-tie - **Phases:** Three-phase ## How it compares Compared against 227 inverters from 12 to 30 kW. Ranks are within that class. | Measure | This inverter | Class median | Standing | Rank in class | | --- | --- | --- | --- | --- | | European efficiency | 98.0% | 98.0% | Typical | 77 | | MPPT trackers | 4 | 2 | Strong - top 6% | 1 | | Max DC input voltage | 1100 V | 1000 V | Strong - top 21% | 1 | | Weight per kW | 2.1 | 1.6 | Typical | 158 | | Warranty | - | 5 yrs | | | ## Specification ### AC output - **Rated AC power:** 25 kW - **Max AC power:** 27.50 kW - **Max apparent power:** 27.50 kVA - **Phases:** Three-phase - **Nominal AC voltage:** 220 V - **Max AC current:** 72.2 A - **Grid frequency:** 50 Hz - **Power factor:** >0.99 (0.8 leading - 0.8 lagging) - **Harmonic distortion (THD):** 3.0 % ### PV input - **Max DC voltage:** 1100 V - **MPPT voltage range:** 180 to 1000 V - **Start-up voltage:** 195 V - **MPPT trackers:** 4 - **Max input current per MPPT:** 32.0 A - **Max short-circuit current per MPPT:** 40.0 A ### Efficiency - **European efficiency:** 98.0 % - **Max efficiency:** 98.4 % ### Physical - **Dimensions:** 578 × 691 × 338 mm - **Weight:** 53.7 kg - **Enclosure:** IP66 - **Cooling:** forced-air - **Noise:** 55 dB - **Operating temperature:** -25 to 60 °C - **Max humidity:** 100 % - **Max altitude:** 4000 m ### Connectivity and protection - **Interfaces:** Wi-Fi, Display - **Protocols:** RS485, USB, Wi-Fi (optional), GPRS (optional) - **Protection:** AFCI, DC switch, Surge protection ### Warranty and certificates - **Certifications:** UL 1741, IEEE 1547, NBR 16149, NBR 16150, C10-11, REN 342, IEC 62109-1, IEC 62109-2, IEC 62116, IEC 61000-6-1, IEC 61000-6-2, IEC 61000-6-3, IEC 61000-6-4 ### Pros - **Support for up to 4 independent MPPT (Maximum Power Point Tracking) systems** - Models with power outputs of 15-36 kW offer 3-4 independent MPPT (Maximum Power Point Tracking) strings with a voltage range of 200-1000 V (the 60 kW model can accommodate up to 8 MPPT strings), which allows for the use of arrays with different orientations and minimizes losses due to partial shading without the need for optimizers. The input voltage range of 200-1000 V provides designers with flexibility in selecting string lengths. - **Maximum efficiency of up to 98.7%** - Models in the 25-36 kW range achieve a peak efficiency of 98.7%, which is competitive compared to comparable commercial inverters of tier-1 (SMA Sunny Tripower Core1 ~98.4%, Fronius Symo Advanced ~98.4%). This European efficiency translates to real performance in the Polish climate, where operation is often below STC (Standard Test Conditions). - **IP65 + C5 anti-corrosion rating** - The enclosure meets IP65 standards and ISO 12944 Class C5, which makes the series ideal for installation in harsh environmental conditions (industrial facilities, coastal areas, and areas near chemical processes). Class C5 is rare in the commercial segment and provides a real advantage over competitors that only offer Class C3. - **10-year warranty (extendable to 20 years)** - The standard warranty is 10 years, with the option to extend it to 15 or 20 years for an additional fee. The manufacturer, Ginlong Technologies, is classified as a reliable tier-1 company by leading financial institutions, and is the 3rd largest manufacturer of PV inverters globally (as of 2025), which reduces the risk of lacking service support throughout the investment return period. - **AFCI and anti-islanding protection features** - The series is equipped with AFCI (Arc Fault Circuit Interrupter) protection, ground fault monitoring, and precise anti-islanding functionality - a combination required by an increasing number of network operators and commercial building insurers in Poland for installations exceeding 50 kWp. ### Cons - **Reduced performance of 15-23 kW models** - In the 15-23K-LV variant, the maximum efficiency is 97.8%, which is approximately 0.7-0.9 percentage points lower than in the 25-60 kW models of the same series and below the leading models in the segment (Huawei SUN2000-20KTL-M5: ~98.6%). For a typical 20 kWp installation, this difference translates to approximately 130-170 kWh/year less energy generation compared to the most efficient alternative. - **Active cooling with a fan** - Models with power outputs of approximately 25 kW or higher are equipped with cooling fans, which generate noise (a significant consideration when installing near office spaces) and require periodic filter inspection and cleaning. The competition (SMA STP 25000TL-30) offers fully passive cooling for similar power outputs. ## About this series Ginlong Solis S5-GC K-LV grid-tie inverters are designed for commercial and industrial applications, prioritizing stable performance, a high level of safety features, and easy production management. What sets them apart from many solutions is their **multi-string MPPT**, which simplifies the design of systems with panels facing different orientations and minimizes losses during partial shading - each tracker operates independently, maximizing the potential of PV strings. A key advantage is the **high European efficiency**, delivering real output under typical operating conditions in Poland, not just in laboratory tests. This series features **comprehensive protections** (including functions that reduce fire risk) and a weatherproof enclosure suitable for indoor and outdoor mounting. Remote monitoring via communication modules (e.g., WiFi/GPRS) and the portal/app is available for overseeing installations, facilitating maintenance and performance analysis. Models in this series are intended for investors seeking **certified compliance with grid requirements** and standardly offer multi-year warranties. ## Questions ### What does the K-LV designation mean in the Solis S5-GC K-LV series, and how does it differ from the standard S5-GC models? The "LV (Low Voltage)" designation indicates that these inverters are designed to operate with DC panel strings that have a lower input voltage - the MPPT range starts from 180 V, which provides greater design flexibility, especially with shorter strings. Models without the "LV" suffix typically require a higher starting voltage. Both variants operate in a three-phase network and belong to the fifth generation (S5). ### How many MPPT (Maximum Power Point Tracking) controllers does the Solis S5-GC K-LV inverter have, and what does this mean for installations with panels oriented in different directions? The number of MPPT (Maximum Power Point Tracking) controllers depends on the model: 15-23 kW models have 2 independent trackers, 25-36 kW models have 4 trackers, and larger units (e.g., 60 kW) can have up to 6-8 trackers. Each tracker operates independently, so panels mounted on a gable roof, at different azimuth angles, or partially shaded, can be connected to separate inputs. This minimizes losses due to mismatches in the PV string. ### What is the efficiency of the Solis S5-GC K-LV inverters, and is it sufficient for commercial installations in Poland? Maximum efficiency ranges from 97.8% (models 15-23 kW) to 98.5% (60 kW model). High European efficiency, calculated for typical conditions in our climate, translates into real energy production throughout the year - not just during peak sunlight hours. For a commercial installation with a capacity of several tens of kilowatts, the difference between 97% and 98.5% represents a real and measurable kilowatt-hour gain per year. ### Can the Solis S5-GC K-LV inverter be installed outdoors? Yes, the enclosure with an IP66 degree of protection safeguards the device against dust and strong water jets, allowing for installation both indoors and directly on the facade or under a canopy. The permissible operating temperature range is from -25°C to +60°C, so the inverter functions reliably in Polish winter conditions. However, it is advisable to avoid mounting in locations exposed to direct sunlight throughout the day, as the high ambient temperature can limit the output power. ### What warranty does Ginlong Solis offer for the S5-GC K-LV series, and is it possible to extend it? The standard manufacturer's warranty is 5 years. Ginlong Solis offers the option to purchase an extended warranty of up to 10 or even 15 years (at an additional cost). For commercial installations, where downtime of the inverter results in lost revenue, it is advisable to consider a package with extended service support when purchasing. The warranty covers material and manufacturing defects; detailed terms are available on the solisinverters.com website. ### How does remote monitoring of an inverter-based solar power system using Solis S5-GC K-LV inverters function? The S5-GC K-LV series inverters support communication via WiFi, GPRS, or RS485/Modbus RTU modules. Once a communication module is connected, data from the installation is sent to the SolisCloud platform, accessible via a web browser and a mobile app. Users can monitor energy production in real-time, analyze the operating history of each MPPT tracker, and quickly identify any potential issues - which reduces the time it takes for service personnel to respond. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/inverters/73941828068a42188bf77f-2cb83759b832.pdf) ## Alternatives | Inverter | Rated AC | Euro efficiency | MPPT | Weight | Difference | | --- | --- | --- | --- | --- | --- | | [Growatt MID 25KTL3-X2 (Pro.E)](https://comparepv.com/inverter/growatt-mid-25ktl3-x2-pro-e) | 25 kW | 98.6% | 3 | 24.0 kg | +0.6 pp efficiency, -1 MPPT, 29.7 kg lighter | | [Growatt MID 25KTL3-X](https://comparepv.com/inverter/growatt-mid-25ktl3-x) | 25 kW | 98.6% | 2 | 23.0 kg | +0.6 pp efficiency, -2 MPPT, 30.7 kg lighter | | [Growatt MID 25KTL3-X1](https://comparepv.com/inverter/growatt-mid-25ktl3-x1) | 25 kW | 98.5% | | 29.5 kg | +0.5 pp efficiency, 24.2 kg lighter | | [GoodWe GW25K-MT](https://comparepv.com/inverter/goodwe-gw25k-mt) | 25 kW | 98.4% | | 40.0 kg | +0.4 pp efficiency, 13.7 kg lighter | | [Fronius Verto 25.0 400](https://comparepv.com/inverter/fronius-international-fronius-verto-25-0-400) | 25 kW | 98.3% | 4 | 35.2 kg | +0.3 pp efficiency, 18.5 kg lighter | | [Sungrow SG25T-P2-CN](https://comparepv.com/inverter/sungrow-sg25t-p2-cn) | 25 kW | 98.3% | 2 | 19.0 kg | -2 MPPT, 34.7 kg lighter | | [Huawei SUN2000-25KTL-M5](https://comparepv.com/inverter/huawei-sun2000-25ktl-m5) | 25 kW | 98.2% | 2 | 21.0 kg | -2 MPPT, 32.7 kg lighter | | [SOFAR 25KTLX-G3](https://comparepv.com/inverter/sofar-solar-sofar-25ktlx-g3) | 25 kW | 98.2% | | 36.0 kg | 17.7 kg lighter | --- Source: https://comparepv.com/inverter/ginlong-solis-s5-gc25k-lv