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The Solis S5-GR3P20K WiFi grid-tied solar inverter (20 kW, 3-phase, 2 MPPT) is a highly efficient three-phase grid-tied inverter designed for use in medium and large solar power plants. The device converts direct current from solar panels into alternating current, which can be used to power a home or business or fed into the utility grid. Thanks to modern electronics, high efficiency, and a wide range of operating parameters, the inverter ensures stable and productive operation of the solar power plant.
The inverter has a rated power of 20 kW and is equipped with two independent MPPT trackers, allowing for the connection of different groups of solar panels with varying orientations or tilt angles. This increases the efficiency of electricity generation and allows for maximum utilization of solar radiation potential throughout the day. The inverter’s maximum efficiency reaches 98.7%, ensuring minimal energy losses during conversion.
The Solis S5-GR3P20K model is designed for three-phase networks and is widely used in private homes, commercial buildings, farms, manufacturing facilities, and other high-energy-consumption sites.
Key advantages of the Solis S5-GR3P20K inverter
- Rated power of 20 kW — the optimal solution for medium and large solar power plants.
- Maximum efficiency up to 98.7% — high solar energy conversion efficiency.
- 2 independent MPPT trackers — flexible connection of various solar panel arrays.
- Recommended solar array capacity up to 30 kW — ability to connect a large number of solar modules.
- Maximum input voltage up to 1100 V — compatibility with modern high-efficiency solar panels.
- Wide MPPT range (160–1000 V) — stable system operation even under variable lighting conditions.
- DC/AC ratio over 150% — ability to connect a larger solar array to increase power generation.
- IP66 protection rating — reliable inverter operation in harsh weather conditions.
Optimal efficiency of the solar power plant
The Solis S5-GR3P20K inverter is equipped with modern MPPT technology, which continuously tracks the maximum power point of the solar panels. Thanks to this, the system operates at maximum efficiency even when solar radiation intensity changes or the panels are partially shaded.
A wide operating voltage range and low starting voltage allow the inverter to begin generating electricity earlier in the morning and continue operating longer into the evening.
Smart Features and Monitoring
The inverter supports modern monitoring and remote control features. Thanks to the WiFi module, the user can connect the inverter to a monitoring system and control the station’s operation in real time.
- LCD display for local control
- RS485 connection
- WiFi module for remote monitoring
- 24-hour system load monitoring
- Remote viewing of generation statistics
Users can view data on electricity production, system status, and the solar power plant’s operational history via a mobile app or web interface.
Protection System and Safety
The inverter is equipped with a comprehensive protection system that ensures stable and safe operation of the equipment.
- DC reverse polarity protection
- short-circuit protection
- overload protection
- overvoltage protection
- grid parameter monitoring
- islanding protection
- temperature protection
- optional AFCI module for arc fault detection
The inverter also features a built-in DC disconnect switch, which enhances operational safety and simplifies system maintenance.
Reliability and ease of installation
The inverter’s compact housing and convenient MC4 connectors allow for quick and safe connection of solar panels. Thanks to its IP66 protection rating, the inverter can be installed both indoors and outdoors.
The device operates stably across a wide temperature range and features an efficient cooling system, ensuring long-term operation.
Applications
- private three-phase solar power plants
- commercial solar systems
- agricultural operations
- business centers and offices
- warehouse complexes
- manufacturing facilities
Solis S5-GR3P20K WiFi — a reliable, efficient, and technologically advanced grid-tied inverter for modern solar power plants, ensuring stable power generation, a high level of safety, and convenient remote monitoring of system operation.