The Sungrow SG110CX-P2 series are three-phase grid-tie inverters designed for large commercial and industrial installations, where stable operation and fast service are paramount. They feature multi-point MPPT tracking, which simplifies string design on rooftops with varying orientations and slopes, and minimizes losses during partial shading - each PV segment can operate closer to its own maximum potential. In practice, this translates to more predictable annual energy yields.
A major advantage is their high European efficiency, which better reflects actual energy production under typical operating conditions in Poland than maximum efficiency alone. The inverters also offer advanced monitoring and diagnostics via iSolarCloud, enabling remote configuration, firmware updates, and parameter monitoring. Communication can be achieved via RS485, and optionally via WiFi or Ethernet.
This solution is tailored for investors seeking security and environmental resilience (surge protection, safety features, outdoor-rated enclosure), as well as compliance with connection requirements and clear warranty terms.
Ranking
Specifications
Pros and cons
The SG110CX-P2 features 12 independent MPPT channels with 24 string inputs, placing it at the top of the commercial string inverter segment above 100 kW - for reference, the Huawei SUN2000-100KTL-M1 offers 10 MPPT. This translates into greater design flexibility for multi-orientation systems and improved yield compensation under partial shading conditions.
A peak efficiency of 98.5% ranks among the best in class for 110 kW string inverters. This is complemented by an IP66 enclosure with C5 anti-corrosion rating and DC Type I+II and AC Type II SPD surge protection, enabling installation in harsh environments - industrial zones and coastal sites - without additional protective enclosures.
The built-in AFCI 2.0 arc-fault circuit interruption function significantly reduces the risk of fire in PV systems - a critical feature for commercial facilities operating 24/7. Smart IV Curve Diagnosis enables remote scanning of string I-V characteristics without additional test equipment, shortening fault identification time and reducing the need for on-site service visits.
The Potential Induced Degradation (PID) compensation function is built directly into the inverter, eliminating the need to purchase a standalone PID recovery unit (~€120-300 per unit). It protects modules against potential-induced degradation, which is particularly important for bifacial modules and large systems operating at DC voltages up to 1,100 V.
The fuse-free design with Smart String Current Monitoring eliminates the cost and failure risk associated with DC string fuses, while enabling remote detection of underperforming or faulty strings via iSolarCloud - without requiring a physical service visit, thereby reducing ongoing O&M costs for commercial installations.
Wireless Wi-Fi connectivity requires the purchase of a separate dongle (EyeM4 or equivalent) and is not factory-integrated. In commercial installations with a dedicated Ethernet connection this is not critical, but it does add to the typical deployment cost and introduces an additional configuration step during commissioning.
Alternatives
About the SG110CX-P2 series
These answers cover the whole series. Where a figure differs, the specification above is this model's own.