Sofar Solar's SOFAR 60-80KTLX-G3 series are three-phase grid-tie inverters designed for commercial and industrial installations, where high power density, stable operation, and easy integration with building automation are crucial. The key advantage is the 6 MPPT, allowing flexible division of PV strings into various roof pitches and orientations, while also minimizing losses during partial shading or uneven soiling. The applied MPPT algorithm operates precisely even under dynamic conditions, and the wide DC input voltage range facilitates pairing with modern high-current modules.
In practice, the high European efficiency delivers significantly more energy in real Polish climate conditions, not just in laboratories. Standard features include RS485, WiFi, and Bluetooth, with optional Ethernet, making monitoring via the portal and app simple for both service providers and installation owners. Additionally, the inverter provides overvoltage protection on both DC and AC sides and complies with popular grid connection standards, with the option to extend the warranty.
Ranking
Specifications
Pros and cons
Each of the 6 MPPT trackers supports 2 independent string inputs (12 DC inputs total), with an operating range of 180-1000 V DC and a maximum input voltage of 1100 V DC. This enables management of multiple roof sections, orientations, and string lengths from a single unit - a key advantage in C&I applications with irregular roof geometry.
A maximum efficiency of 98.7% places this series in the upper tier of the 60-80 kW string inverter segment. The IP66 rating and operating temperature range of -30°C to +60°C allow for outdoor installation without an additional enclosure, reducing capital costs and simplifying system design.
RS485, Wi-Fi, and Bluetooth are included as standard; Ethernet is available as an option. Native integration with the SolarmanBusiness portal and Modbus/RTU protocol enables seamless connection to BMS/SCADA systems without the need for external communication gateways.
An accepted input current of up to 16 A per string allows direct use of modern 500-700 W panels (e.g., full-black N-type TOPCon) without parallel string combinations, reducing DC wiring complexity and minimizing resistive losses.
Factory-integrated Type II surge protective devices (SPDs) on both the DC and AC sides eliminate the need to purchase and install separate SPD units (external SPDs typically cost 300-600 PLN per side), lowering the total installed cost of lightning protection in C&I facilities.
The Sungrow SG80KTL claims a maximum efficiency of >99%, whereas the SOFAR 80KTLX-G3 achieves 98.7% - a difference of ~0.3 percentage points translating to an estimated 200-250 kWh of additional annual losses for an 80 kW system (assuming ~160 MWh of annual yield). Over a 20+ year LCOE analysis, this gap becomes a measurable factor.
According to the Wood Mackenzie H1 2025 ranking, Sofar Solar does not appear among the top ten inverter manufacturers by market share (leaders: Huawei 93.9 pts, Sungrow 93.7 pts, SMA, Fronius). This may translate to a narrower network of authorized service partners and more limited spare parts availability in Poland compared to leading brands.
Alternatives
About the SOFAR 60-80KTLX-G3 series
These answers cover the whole series. Where a figure differs, the specification above is this model's own.