The Ginlong Solis S5-GR1P series comprises single-phase on-grid inverters designed for small residential installations and light commercial applications. These inverters feature advanced control electronics and a refined MPPT algorithm, enabling rapid response to sunlight fluctuations. This ensures stable performance even under dynamic weather conditions. Depending on the configuration, the MPPT option simplifies operation with two independent strings - a significant benefit for various roof orientations or partial shading situations.
Notably, they boast a high European efficiency - crucial for Polish conditions, as they deliver superior performance in typical temperatures and loads, not just in ideal laboratory settings. The series includes comprehensive safety features, such as AFCI technology to minimize fire risk, and export control functions via an integrated EPM (in conjunction with the meter). Monitoring is accessible through the SolisCloud platform - primarily via WiFi (datalogger), with communication options varying by version. These are not hybrid inverters, meaning they are not designed for direct connection to energy storage systems. In practice, they represent a reliable choice for investors seeking dependable performance, remote monitoring capabilities, and a complete certification package backed by market-specific warranties and distributor support.
Ranking
Specifications
Pros and cons
The S5-GR1P series is equipped with 2 independent MPPT trackers with a voltage range of 100-500 V DC, which allows for the use of strings with different orientations or partial shading without cross-interference of losses. This is a direct benefit for typical south-facing and south-west-facing pitched roofs in Poland.
The maximum conversion efficiency ranges from 97.8-98% (depending on the power variant), while the European efficiency for 3.6 kW models is approximately 96.5%. In the Polish climate - with frequent operation at partial loads - the European efficiency is a key indicator, placing the S5-GR1P in the upper quartile of the market for single-phase applications.
The integrated AFCI (arc-fault circuit interrupter) detects arc faults in the DC circuit and automatically shuts down the inverter, reducing the risk of fire. The EPM (Export Power Manager) function works with a smart meter and enables active control of power delivered to the grid - a feature required in many European DSPs since 2023.
Ginlong Solis is listed on the BNEF Tier 1 PV Inverter Manufacturers (Q4 2023) list and is ranked as the 3rd largest photovoltaic inverter manufacturer globally, holding the #1 position in global sales of single-phase inverters. This represents a real opportunity for investors, with a strong track record and long-term service security.
The IP66 protection rating allows for outdoor installation without an additional enclosure, while natural cooling (convection, with no fans in many variants) eliminates moving parts - which, in practice, reduces both the risk of failure and noise levels to 0 dB in normal mode.
The manufacturer is actively promoting the successor - the S6-GR1P series (with improved electronics and a wider input power range) as the current market offering. The S5 series is still available, but new firmware features and SolisCloud integrations are primarily being developed for the S6, which could lead to a slower update cycle for the S5 software over the next 3-5 years.
The standard warranty period is 5 years. Extending the warranty requires activation through the SolisCloud app within 12 months of purchase - a condition that is easily overlooked. For comparison, SMA Sunny Boy offers a default of 5 years with a straightforward option for 10 years, while Huawei SUN2000-L1 offers a standard of 10 years in Poland through its distributor.
Alternatives
About the S5-GR1P series
These answers cover the whole series. Where a figure differs, the specification above is this model's own.