The Ginlong Solis RHI-48ES-5G series are hybrid single-phase inverters designed for installations that not only feed energy into the grid but also effectively collaborate with energy storage systems and provide backup power. In practice, this means the ability to build a prosumer system with self-consumption and a support mode - following a network failure, the switching occurs very quickly, helping maintain the operation of essential circuits in the home.
A key advantage is the presence of two independent MPPTs, which facilitate designing the system with solar panels on different roof sections or where partial shading occurs - each tracker can optimize the performance of its own string. High European efficiency translates into better yields in actual weather conditions in Poland, especially with variable sunshine.
Daily management is supported by SolisCloud monitoring with the option to choose communication methods (e.g., WiFi, as well as wired solutions via data loggers). The series is compatible with popular batteries (lithium-ion and lead-acid) and supports cooperation with BMS. For installers and investors, certifications allowing operation in European grids and the standard warranty from the manufacturer are also important. This is a good choice primarily for residential installations, but it also proves suitable for small commercial sites, where energy independence matters.
Ranking
Specifications
Pros and cons
Each of the two trackers can handle a separate string within the 90-520 V DC range, which allows for a design with modules on different orientations (e.g., south + east) without incurring losses due to mismatch. When partially shaded, one string will not negatively impact the performance of the other.
The manufacturer's datasheet confirms a maximum efficiency of >97.5%, placing this series at the upper end of the entry/mid-tier single-phase hybrid inverter segment. In Poland, where solar irradiation varies, this translates to higher yields even under partial load.
The absence of a fan eliminates one of the main points of failure in inverters and reduces noise to zero in normal operating mode. This translates to lower service costs over the long-term.
The switchover time to island mode (EPS) of less than 20 ms allows sensitive devices (routers, NAS, LED lighting) to continue operating after a network outage. Fronius Primo GEN24 and GoodWe ET offer similar or slightly worse parameters in the same price range.
The manufacturer confirms its collaboration with Pylontech US2000/US3000, Dyness B4850, and Puredrive, as well as a range of lead-acid batteries (42-58 V, up to 2000 Ah). The open list of compatible BMS systems reduces the risk of being locked into a single battery supplier.
A low-voltage battery-DC system requires charging/discharging currents of up to 100 A at 5 kW, which necessitates the use of cables with a cross-section of ≥16 mm² and increases resistive losses compared to high-voltage inverters (e.g., SolarEdge Energy Hub, Fronius GEN24 Plus working with 100-500 V batteries). This also limits the choice of batteries to low-voltage devices only.
Solis offers a 5-year warranty included in the device price (extendable to 10 years for an additional fee), while SolarEdge provides a standard 12-year warranty, and Huawei SUN2000 offers a 10-year warranty. For investments with a 20-25 year horizon, the shorter standard warranty period increases the total cost of ownership (TCO) due to the cost of the optional extension or the need for earlier replacement.
Alternatives
About the RHI-48ES-5G series
These answers cover the whole series. Where a figure differs, the specification above is this model's own.