The Ginlong Solis Solis-EHV-5G-PLUS series comprises three-phase grid-tie inverters designed for large commercial and industrial installations, where high energy yield, safety, and rapid diagnostics are paramount. These inverters feature multi-channel MPPT, facilitating string design for various roof orientations, strings of different lengths, and localized shading conditions - each PV tracker independently searches for the maximum power point, minimizing energy losses. The applied operating architecture ensures high European efficiency, delivering genuinely better results in typical weather conditions in Poland, beyond laboratory settings.
In practice, installers value the intelligent string monitoring and I-V curve scanning functions, which shorten fault location time. The series supports remote firmware updates, with communication available via RS485 or PLC (optional), integrated with monitoring platforms. The high-seal construction and safety and EMC certifications (including IEC/EN 62109, IEC 61000) simplify commissioning and operation, with the manufacturer's warranty depending on the variant and market.
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The 255K model achieves a maximum efficiency of 99.0% (255K: 98.7%, 125K: 98.6%), placing the entire series among the top performers in commercial string inverters. The CEC efficiency of 98.3% also confirms high efficiency even under partial load conditions, which are typical for the Polish climate.
The 255K model features 12 independent MPPT trackers, capable of supporting up to 28 strings with an input current of up to 30 A per string. This allows for flexible system design with various panel orientations, bifacial panels, and partial shading, without significant energy losses between strings.
Built-in I-V curve scanning allows for the identification of faults (degradation of cells, loose connections, module damage) without the need for external measurement equipment. In large commercial installations with hundreds of strings, this reduces the time required for service diagnostics from days to hours.
Ginlong Solis has consistently maintained its Bloomberg NEF Tier 1 status, confirmed in Q1 2025 and Q1 2026, as the world's third-largest manufacturer of photovoltaic inverters (founded in 2005, listed on the Shanghai Stock Exchange). This status is a formal requirement for financing projects by banks and investment funds in Poland.
The IP66 ingress protection rating allows for installation outdoors without the need for an additional, climate-controlled enclosure, which reduces infrastructure costs in ground-mounted farms and industrial facilities. Safety and EMC (IEC/EN 62109, IEC 61000) certifications are required for UDT inspections and connections to the OSD network in Poland.
The EHV-5G-PLUS series begins with the 125K model, which makes it unsuitable for commercial installations below approximately 100-110 kWp DC. For projects in the 50-100 kWp range, a lower series (e.g., Solis 5G) is required, which necessitates standardizing the service platform across multiple sites.
The standard manufacturer's warranty is 5 years; an extension to 10 years is available as a separate option for an additional cost (SKU variants with the "-10" designation are available from distributors). Competitors in the premium segment (SMA, Fronius) include 5-10 years in their catalog prices without additional charges, which can increase the total cost of ownership (TCO) for the EHV-5G-PLUS series in a 20-year project, as calculated using the LCOE.
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About the Solis-EHV-5G-PLUS series
These answers cover the whole series. Where a figure differs, the specification above is this model's own.