The Sofar Solar SOFAR TL series are single-phase grid-tie inverters, designed for simple and stable prosumer installations. In practice, this means quick installation, smooth operation thanks to natural cooling, and convenient daily use. The typical architecture for this series with 1 MPPT performs best where panels are arranged in one direction and there are no significant shading differences-MPPT effectively keeps the installation running at the optimal point.
This series boasts high European efficiency, which better reflects the inverter's real performance under varying weather conditions in Poland, translating to stable energy production throughout the year. Remote monitoring is available via WiFi (with an Ethernet option), usually accessible through online platforms or apps. The TL series is not hybrid, so it is not designed for direct integration with energy storage systems. The implemented safety features, compliance with European grid connection standards, and standard long-term warranty make it a good choice for homes and small commercial properties.
Ranking
Specifications
Pros and cons
Natural convection eliminates moving parts susceptible to wear, while the IP65 enclosure rating provides full protection against dust ingress and water jets. Noise output stays below 25 dB(A) - comparable to premium actively cooled inverters such as the Fronius Primo.
The EU efficiency of the 3000TL-G3 is rated at 97.2% (per the Krannich Solar/Sofar datasheet), a competitive figure within the budget single-phase inverter segment. For reference, comparable models - Growatt MIN TL-X and Deye SUN-G3 - achieve approximately 97.0% and 97.1%, respectively.
Online monitoring via the SolarmanPV platform is included out of the box with no additional hardware purchase required. Many competing models in this price class - including older Huawei SUN2000-3/4/5KTL units - required a separate datalogger costing 150-250 PLN.
Per the 1.1K-3.3KTL-G3 datasheet, the unit is rated for ambient temperatures from -30°C to +60°C, ensuring full operational readiness in Polish winter conditions without risk of damage to the electronics during hard frosts.
The series carries VDE-AR-N 4105, EN 50549-1, and CE certifications - all required for lawful grid connection in Poland. No additional configuration is needed during DSO inspection and commissioning.
The 1100-3300TL-G3 datasheet specifies a factory warranty of 60 months (5 years). Direct competitors - the Growatt MIN 3000TL-X and Huawei SUN2000-3KTL - both offer 10 years as standard at no additional cost. For a prosumer investor targeting a 20-year payback period, this implies at least one paid warranty extension.
The TLM-G3 series (the successor to the TL line within the Sofar Solar portfolio) achieves EU efficiency of 97.3-97.5% and peak efficiency of 98.4% - between 0.1 and 0.7 percentage points higher than the TL. On an annual basis for a 5 kWp system producing ~5,000 kWh, the gap can translate to 5-35 kWh less yield, equivalent to roughly 3-20 PLN at an energy price of 0.60 PLN/kWh.
Polish installers and end users (elektroda.pl forum, fotowoltaikaonline.pl) consistently report limited functionality in the SolarmanPV app and intermittent data synchronization issues - particularly when compared to Huawei FusionSolar or SMA Sunny Portal, which are regarded as the de facto industry standard.
Alternatives
SolarEdge SE66.6K (K66.6SE) - Primary unit
66.6 kW
98.0%
-
48.0 kg
-3.4 kW, -0.4 pp efficiency, 22.0 kg lighter
About the SOFAR TL series
These answers cover the whole series. Where a figure differs, the specification above is this model's own.