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Ginlong Solis S5-GC15K-LV
Ginlong Solis

S5-GC15K-LV

15 kW Grid-tie Three-phase
Compare with closest alternative Datasheet PDF
Rated AC (kW)
15.00
Weak · bottom 15%
Euro eff. (%)
97.3
Weak · bottom 16%
MPPT
3
Strong · top 23%
Max DC (V)
1100
Strong · top 21%
Weight (kg)
38.2
Weak · 3.2 kg above median
Warranty (yrs)
-
Not published

The Ginlong Solis S5-GC-K-LV series is a three-phase grid-tie inverter designed for commercial and industrial installations, where project flexibility and reliable operation in variable conditions are essential. The application of 4 independent MPPTs facilitates managing multiple string configurations with modules of different orientations and tilts, while also effectively minimizing losses due to partial shading, as each tracker can optimize its respective section.

In practice, high European efficiency also delivers the advantage, meaning genuinely better performance in typical operating conditions in Poland, not just in an ideal laboratory setting. This series offers comprehensive diagnostic features, including string monitoring and I-V curve analysis, which accelerates the detection of anomalies. For installation monitoring, it is supported by SolisCloud, along with communication via WiFi or GPRS (optional), enabling remote updates and control. Additional safety is ensured by features such as AFCI and an IP66-rated enclosure, and the entire product comes with a 10-year warranty.

Ranking

227 inverters from 12 to 30 kW
Metric This inverter Median Position in class Rank in class
European efficiency 97.3% 98.0% Weak · bottom 16% 142
MPPT trackers 3 2 Strong · top 23% 22
Max DC input voltage 1100 V 1000 V Strong · top 21% 1
Weight per kW 2.5 1.6 Weak · bottom 16% 187
Warranty - 5 yrs Not published -
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Specifications

Open datasheet PDF
Rated AC power 15 kW Continuous output
Max AC power 16.50 kW Short-term output above the rating
Max apparent power 16.50 kVA
Phases Three-phase
Nominal AC voltage 220 V
Max AC current 43.3 A
Grid frequency 50 Hz
Power factor 0.8 leading - 0.8 lagging
Harmonic distortion (THD) 3.0 %
Max DC input power 22.50 kW DC/AC ratio 1.50
Max DC voltage 1100 V Caps the string length
MPPT voltage range 200 to 1000 V
Start-up voltage 180 V
MPPT trackers 3 2 strings each
Max input current per MPPT 32.0 A Must exceed the panel's Imp
Max short-circuit current per MPPT 40.0 A Must exceed the panel's Isc
European efficiency 97.3 % Weighted across part loads
Max efficiency 97.8 % Best single operating point
Dimensions 629 × 647 × 252 mm Height × width × depth
Weight 38.2 kg 2.5 kg per kW
Enclosure IP66
Cooling forced-air
Noise 60 dB
Operating temperature -25 to 60 °C
Max humidity 100 %
Max altitude 4000 m
Interfaces Wi-FiDisplay
Protocols RS485Wi-Fi (optional)GPRS (optional)
Protection AFCIDC switchSurge protection
Certifications G99VDE-AR-N 4105VDE V 0124EN 50549-1VDE 0126UTE C 15VFR:2019RD 1699RD 244UNE 206006UNE 206007-1CEI 0-21C10/11NRS 097-2-1EIFS 2018.2IEC 62116IEC 61727IEC 60068IEC 61683EN 50530IEC/EN 62109-1IEC/EN 62109-2IEC/EN 61000-6-1IEC/EN 61000-6-2IEC/EN 61000-6-3IEC/EN 61000-6-4

Pros and cons

5 positive · 2 caution
What owners get
Peak efficiency of up to 98.5%

The S5-GC(25-36)K-LV models achieve a maximum efficiency of 98.4%, while the S5-GC60K-LV model achieves 98.5% efficiency, with a CEC (cumulative efficiency) of 98.1%. These are among the highest efficiency values for commercial string inverters, directly translating to higher annual energy yield under typical partly cloudy conditions common in Poland.

4 independent MPPT - project flexibility

Four individual MPPT (Maximum Power Point Tracking) units allow for connecting strings with different orientations, inclines, and lengths without interference, which is particularly important in C&I (Commercial and Industrial) installations on multi-pitched roofs. Each tracker optimizes its own section, minimizing losses due to partial shading.

BNEF Tier 1 - 3rd largest producer globally

Ginlong Solis holds a BloombergNEF Tier 1 Bankable Inverter Manufacturer status (verified in 2025) and is the third-largest PV inverter manufacturer in the world. This status facilitates obtaining bank financing for projects and provides assurance of long-term technical support and component availability.

AFCI + IP66 - fire safety

The built-in AFCI (arc-fault circuit interrupter) automatically detects electrical arcs in the DC circuit and disconnects the inverter, reducing the risk of a fire in the installation. The IP66 enclosure provides full protection against dust and strong water streams, allowing for outdoor mounting without additional enclosures.

SolisCloud + I-V curve diagnostics

The SolisCloud platform offers remote monitoring, over-the-air (OTA) firmware updates, and inverter control via WiFi or, optionally, GPRS. Integrated I-V curve scanning and chain monitoring enable quick identification of faulty modules or degradation without the need for on-site service visits.

Trade-offs
10-year warranty - below premium segment

The standard 10-year warranty is typical for the C&I (Commercial and Industrial) sector. However, manufacturers such as SMA and Fronius offer the option to extend the warranty up to 20 years as part of a single service agreement. For commercial installations with an expected lifespan of 20-25 years, this means the need to negotiate an additional service contract after the initial 10-year period.

Platform 5. generation (S5) - it is not the newest one.

Solis has already launched its 6th-generation platform (S6) on the market, featuring expanded communication capabilities and higher DC input power. The S5-GC-K-LV series remains available for sale, but it may have a shorter software update and component availability horizon compared to its competitors, potentially lasting less than 10 years.

Inverter Power Euro eff. MPPT Weight Difference
Ginlong Solis S5-GC15K-LV 15 kW 97.3% 3 38.2 kg You are here
MID 15KTL3-X 15 kW 98.6% 2 23.0 kg +1.3 pp efficiency, -1 MPPT, 15.2 kg lighter
SG15KTL-M 15 kW 98.3% 2 24.0 kg +1.0 pp efficiency, -1 MPPT, 14.2 kg lighter
SUN2000-15KTL-M2 15 kW 98.3% 2 25.0 kg +1.0 pp efficiency, -1 MPPT, 13.2 kg lighter
SUN2000-15KTL-M0 15 kW 98.3% 2 25.0 kg +1.0 pp efficiency, -1 MPPT, 13.2 kg lighter
MOD 15KTL3-X 15 kW 98.2% 2 16.0 kg +0.9 pp efficiency, -1 MPPT, 22.2 kg lighter
MOD 15KTL3-X2(Pro) 15 kW 98.2% 2 15.6 kg +0.9 pp efficiency, -1 MPPT, 22.6 kg lighter
SOFAR 15KTLX-G3 15 kW 98.2% 2 20.0 kg +0.9 pp efficiency, -1 MPPT, 18.2 kg lighter
Fronius Verto 15.0 15 kW 98.2% 4 35.2 kg +0.9 pp efficiency, +1 MPPT, 3.0 kg lighter

About the S5-GC-K-LV series

6 answered

These answers cover the whole series. Where a figure differs, the specification above is this model's own.

Which types of installations are suitable for the Solis S5-GC-K-LV series of inverters?
The Solis S5-GC-K-LV series are three-phase grid-tie inverters primarily designed for commercial and industrial applications, such as production halls, warehouses, logistics centers, and office buildings. Their ability to handle low output voltage and their wide power range (from 15 kW to over 60 kW) make them suitable for any application requiring higher power and flexibility in DC system design.
How many MPPT inputs does the Solis S5-GC-K-LV inverter have, and why is this important?
The S5-GC-K-LV series features 4 independent MPPT inputs. This means that it is possible to connect strings of modules with different orientations or roof angles (e.g., south and west-facing) without significant losses. Each tracker optimizes the performance of its section independently, which is also important in situations with partial shading - shading of one section does not degrade the performance of the others.
What warranty applies to Solis S5-GC-K-LV inverters?
The manufacturer - Ginlong (Solis), a Tier 1 company - provides a standard warranty of 10 years. This is twice the typical 5-year warranty found in more affordable solutions. Solis offers the option to extend the warranty for a longer period; however, it is advisable to confirm the specific terms with an authorized distributor, as they may vary depending on the market.
Does the Solis S5-GC-K-LV inverter have AFCI (Arc Fault Circuit Interrupter) protection, and is this important?
Yes, the S5-GC-K-LV series is equipped with AFCI (Arc Fault Circuit Interrupter) functionality, which detects electrical arcs. The device detects dangerous arcs in DC systems, which can lead to fires, and automatically disconnects the circuit. In the case of commercial building installations, AFCI is increasingly required by insurers and local fire codes.
How to monitor the real-time performance of the Solis S5-GC-K-LV inverter?
The series works with the SolisCloud platform, accessible through a web browser and a mobile app. Communication is via WiFi or, optionally, GPRS. The system offers monitoring of individual module chains and analysis of the I-V curve, which allows for quick detection of a faulty module, a damaged cable, or panel contamination. Remote software updates eliminate the need for a service visit when firmware is updated.
What power range does the Solis S5-GC-K-LV series cover, and does it suit my installation?
The S5-GC-K-LV series is available in models ranging from 15 kW to 60 kW (including models such as 15K, 20K, 23K, 25K, 36K, and 60K-LV). The enclosure meets IP66 sealing standards, allowing the device to be mounted outdoors without the need for an additional enclosure. For prosumer installations below 10 kW, this series is too large; its natural environment is C&I (commercial & industrial) installations ranging from several tens to several hundred kWp.
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