The Ginlong Solis Solis 5G series comprises grid-tie and hybrid inverters designed for high operational stability and seamless integration with modern PV systems. Models featuring dual MPPT enhance performance when panels are distributed across different roof sections or partially shaded-each tracker independently searches for the optimal operating point. In practice, this translates to more predictable energy production under typical Polish roof conditions.
Noteworthy is the high European efficiency, which better reflects real-world effectiveness in varying sunlight conditions, thereby influencing annual yields. The 5G series supports online monitoring-via Wi-Fi or LAN communication modules and remote access through an app-facilitating diagnostics and operational oversight.
Hybrid variants are notable for their compatibility with energy storage systems, enabling increased self-consumption and providing backup power for specific circuits. Standard features include outdoor enclosures and the option to extend warranty, making the 5G series an excellent choice for homes and smaller commercial properties.
Ranking
Specifications
Pros and cons
Ginlong Solis is listed on the BloombergNEF Tier 1 PV Inverter Manufacturers list (verified since Q4 2023), which means it meets the bankability requirements demanded by most organizations financing PV projects. An independent audit by DNV-GL showed a failure rate below 0.2%, and Solis was the first inverter manufacturer to pass the PVEL reliability tests.
Single-phase 5G series models achieve European efficiency levels of 97.5-98.3% (Solis-1P7-8K-5G datasheet, August 2024), placing them alongside GoodWe and SMA in the top tier according to independent reviews (Clean Energy Reviews 2025). In the context of Poland's variable solar irradiance, this value directly translates into annual energy yield.
The 5G series standardly offers two independent MPPT trackers, which allows for connecting modules on different roof sections or with different orientations without affecting each other's performance. Hybrid models feature 3-4 MPPTs, setting them apart from comparably priced inverters that often only offer 1 MPPT in this class.
Ginlong Solis achieved the top position in the global supply of string inverter components for residential systems in 2024 (according to industry reviews). The scale of production ensures the availability of replacement parts and the stability of the service chain - Solis, as one of the few Chinese manufacturers, has a dedicated Polish service department.
The SolisCloud platform (iOS/Android) provides real-time production monitoring. One datalogger can support up to 10 inverters. Importantly for installers, the warranty can be extended directly through the SolisCloud app, which simplifies the management of the device fleet. The standard warranty is 5 years, with the option to extend it for an additional fee.
The WiFi/LAN datalogger (S2-WL-ST or S5-WiFi-ST stick) is not included in the base price of the inverter - it represents an additional cost of around 200-400 PLN. Competitors like Huawei SUN2000 have built-in 4G/WiFi connectivity as standard, which, when comparing the total installation cost, reduces the apparent price advantage of the 5G series.
The standard warranty is 5 years, while SMA Sunny Boy offers 5+5 years (a total of 10 years in the standard European market), and Fronius GEN24 allows for a free extension to 10 years through registration. Extending the Solis warranty beyond 5 years involves an additional cost, which increases the total cost of ownership for installations with a 20-25 year lifespan.
Alternatives
About the Solis 5G series
These answers cover the whole series. Where a figure differs, the specification above is this model's own.