The Sungrow SG36/60CX series comprises three-phase grid-tie commercial-grade inverters, designed for rooftop installations on warehouse and commercial building rooftops, as well as smaller PV farms. What distinguishes them is the multi-string MPPT tracking - the variants in this series offer 4 or 6 independent MPPT channels, facilitating the design of installations with varied roof pitches, different tilt angles, and partial shading. This ensures each string operates closer to its maximum potential, rather than being limited by the weakest point.
In practice, this is aided by the high European efficiency - it signifies better energy yield under typical operating conditions encountered in Poland, not just in ideal laboratory tests. The series supports modern services: remote startup and updates, diagnostics (including IV curve scanning), and monitoring via an app; communication can operate via RS485/Modbus, and depending on configuration, also via WiFi or Ethernet. These are not hybrid inverters - they are not designed for direct integration with energy storage systems, but rather for maximizing energy production and stable grid operation. For safety, II-type overvoltage protection is implemented, and the standard warranty period is 10 years.
Ranking
Specifications
Pros and cons
Sungrow ranked first in the BloombergNEF bankability index for the sixth consecutive year (2025 report, 100% respondent recognition). For commercial projects financed through debt or leasing, this is a decisive advantage - banks and investment funds accept the brand without requiring additional brand-level due diligence.
The SG36CX variant achieves a peak efficiency of 98.9%, while the SG60CX reaches 98.8% (per datasheets V13/V14). In the 36-60 kW commercial inverter class, these figures are premium-grade - comparable to the Huawei SUN2000-60KTL and above the typical 97.5-98.5% range of lower-cost Tier-2 suppliers - directly improving annual energy yield under Polish irradiance conditions.
Each independent MPPT tracker supports 2 strings in parallel at a short-circuit current of 45 A, ensuring full compatibility with high-power bifacial modules (≥600 Wp) without risk of exceeding input limits. Six MPPTs enable multi-roof-plane installations to be served without energy losses caused by inter-plane shading.
Active PID compensation eliminates the need for a separate PID recovery unit (typical cost ~800-1,500 PLN for a commercial installation). This is particularly relevant for full-black modules and negative-grounding systems, where PID risk is elevated under Poland's high-humidity conditions.
The IP66 (NEMA 4X) ingress protection rating and wide ambient temperature range allow wall-mount installation in unheated industrial buildings, open canopies, and outdoor environments without an additional protective enclosure - simplifying system design and reducing BoS costs.
The SG60CX throttles output from 60 kVA (at 45°C) to 50 kVA (at 50°C ambient) - a reduction of approximately 17% of rated power. For installations on dark metal roofs, where microenvironment temperatures can exceed 50°C in summer, PVsyst simulations based on nameplate capacity will overestimate projected yields; manual correction of the derating curve is required.
Alternatives
About the SG36/60CX series
These answers cover the whole series. Where a figure differs, the specification above is this model's own.