The Ginlong Solis S5-GC series are three-phase grid-tie inverters designed specifically for commercial and industrial installations, where reliable operation, easy maintenance, and high energy production throughout the year are crucial. Depending on the model, several independent MPPTs are available, facilitating yield optimization for different roof orientations, varied string configurations, and partial shading-each tracker operates at its maximum power point.
Real-world performance in Polish conditions is influenced by high European efficiency, which better describes the inverter's behavior under typical load ranges, resulting in fewer losses and better annual yields. The standard includes comprehensive safety features, including AFCI to mitigate fire risk, and an IP-class enclosure enabling outdoor mounting. Monitoring is done via RS485, while remote viewing and reporting are available through optional Wi-Fi or GPRS modules, compatible with control platform/applications for installation performance monitoring. The series offers a typical 10-year warranty for this segment and complies with key grid connection standards.
Ranking
Price offers
| Shop | Country | Price | Per kW | Stock | Offer updated | Link to shop |
|---|---|---|---|---|---|---|
| ussolarsupplier.com | United States | 7 949 $ net | 79.49 $/kW | In stock | 18h ago | Visit shop |
Specifications
Pros and cons
The S5-GC50K and S5-GC100K models achieve a maximum efficiency of 98.8%, with a CEC/European efficiency of 98.1-98.3%. The European efficiency, weighted for the actual solar radiation profile in central Europe, places the series among the leading commercial string inverters, and directly translates into higher annual yields in the Polish climate.
In models with power ratings of 80-100kW, 9-10 independent MPPTs are provided (DC voltage range of 180-1000 V, string current up to 32 A), which allows for the separate tracking of the maximum power point for each group of strings with different orientations or levels of shading. This is a significant advantage over inverters with 3-4 MPPTs, particularly for complex commercial and large-scale ground-mounted installations.
Arc Fault Circuit Interrupter (AFCI) protection is built-in and doesn't require the purchase of an additional module. In commercial installations, AFCI reduces the risk of fire caused by hidden arc faults and is becoming a requirement for insurers and local building codes in an increasing number of European countries.
The IP66 sealing class and C5 anti-corrosion certification (the highest level for marine and industrial environments according to ISO 12944) allow for outdoor mounting in harsh weather conditions without the need for additional enclosures. This is particularly important for installations in ports, agricultural settings, and near industrial facilities.
Ginlong Solis maintains its Tier 1 status from BloombergNEF in Q1 2025 and is the third-largest inverter manufacturer globally. The Tier 1 status facilitates the financing of commercial projects - financial institutions (banks, project finance funds) accept Tier 1 devices without additional technical audits, streamlining the due diligence process.
The wireless communication module (WiFi or GPRS) is not a standard component - it requires a separate dongle to be purchased. In comparison to the Huawei SUN2000-G2, where the WiFi/4G module is factory-integrated, this results in an additional cost (approximately 100-200 zł/unit) and a potential point of failure, particularly in distributed installations with multiple inverters.
Solis has introduced the S6-GC series to the market, offering a wider range of full-power MPPT and simplified DC cabling. While the S5-GC is still actively sold and covered by warranty, when purchasing a new system with a lifespan of 20-25 years, it is important to consider that the priorities for technical support and the availability of spare parts may shift towards newer generations over time.
Alternatives
About the S5-GC series
These answers cover the whole series. Where a figure differs, the specification above is this model's own.