--- title: "SOFAR 100KTLX-G4 Grid-tie Inverter: Specs & Datasheet | ComparePV" description: "SOFAR 100KTLX-G4 100 kW grid-tie inverter. Specs: 98.3% European efficiency, 10 MPPT, 1100 V max DC input, 75.0 kg." source: "https://comparepv.com/inverter/sofar-solar-sofar-100ktlx-g4" updated: 2026-01-16 --- # SOFAR 100KTLX-G4 ## Identity - **Manufacturer:** Sofar Solar - **Model:** SOFAR 100KTLX-G4 - **Series:** SOFAR 100-125KTLX-G4 - **Rated AC power:** 100 kW - **Type:** Grid-tie - **Phases:** Three-phase ## How it compares Compared against 243 inverters from 30 to 100 kW. Ranks are within that class. | Measure | This inverter | Class median | Standing | Rank in class | | --- | --- | --- | --- | --- | | European efficiency | 98.3% | 98.2% | Typical | 39 | | MPPT trackers | 10 | 4 | Strong - top 7% | 1 | | Max DC input voltage | 1100 V | 1100 V | Typical | 3 | | Weight per kW | 0.8 | 1.1 | Strong - top 12% | 25 | | Warranty | - | 5 yrs | | | ## Specification ### AC output - **Rated AC power:** 100 kW - **Max apparent power:** 100.00 kVA - **Phases:** Three-phase - **Nominal AC voltage:** 400 V - **Max AC current:** 152.0 A - **Grid frequency:** 50 Hz - **Power factor:** 0.8 leading - 0.8 lagging - **Harmonic distortion (THD):** 1.0 % ### PV input - **Max DC voltage:** 1100 V - **MPPT voltage range:** 180 to 1000 V - **Start-up voltage:** 200 V - **MPPT trackers:** 10 - **Max input current per MPPT:** 40.0 A - **Max short-circuit current per MPPT:** 50.0 A ### Efficiency - **European efficiency:** 98.3 % - **Max efficiency:** 98.6 % ### Physical - **Dimensions:** 695 × 970 × 325 mm - **Weight:** 75.0 kg - **Enclosure:** IP66 - **Cooling:** forced-air - **Operating temperature:** -30 to 60 °C - **Max humidity:** 100 % - **Max altitude:** 4000 m ### Connectivity and protection - **Interfaces:** Wi-Fi, Bluetooth, Display - **Protocols:** RS485, Wi-Fi, Modbus (supported) - **Protection:** AFCI, DC switch, Surge protection ### Warranty and certificates - **Certifications:** EN/IEC 62109-1/2, EN/IEC 61000-6-2, EN/IEC 61000-6-4, IEC 61000-3-4, IEC 61000-3-5, EN 50530, EN 50549, IEC 62116, IEC 61727, IEC 61683, IEC 60068-2-1/2/14/30, VDE V 0126-1-1, UTE C15-712-1, VDE-AR-N 4105/4110, NTS 631, UNE 217001, UNE 217002, G99, C10/11 ### Pros - **10 Independent MPPTs at 40 A + 150% DC Overload Capability** - The series features 10 independent MPPT trackers with a maximum input current of 40 A each (20 DC inputs total) and supports up to 150% DC-side overloading. This enables flexible string configurations across varying orientations and azimuths without additional optimizers, reducing the BoS cost of commercial installations. - **98.3% European Efficiency / 98.6% Peak Efficiency** - A European efficiency of 98.3% (peak efficiency 98.6%) positions the series among the top-tier commercial inverters in the 100-125 kW class. The European efficiency figure reflects performance under variable irradiance conditions (weighted according to Central European climate profiles), translating directly into higher annual energy yield under Polish climatic conditions. - **IP66 Enclosure + C5-M Corrosion Protection** - The IP66-rated enclosure combined with C5-M corrosion resistance (per manufacturer specification) allows outdoor installation in harsh environments - coastal sites, industrial vicinities, and high-humidity zones - without the need for additional protective enclosures. - **10-Year Warranty (Standard for Europe)** - Sofar Solar's official warranty terms for the European market provide 120 months (10 years) of coverage from the date of purchase. This places the series on par with commercial-class competitors such as Sungrow and Huawei, and protects the investor throughout the typical project financing period. - **Broad EU Certification + Type II SPD Protection + Monitoring** - The inverter carries certifications for key European markets: VDE-AR-N 4110 (Germany), G99 (UK), CEI 0-21/16 (Italy), EN/IEC 62109-1/2, and UNE 217001/217002 (Spain). Integrated Type II SPD surge protection on both AC and DC sides, an I-V curve scan function, and Modbus/Wi-Fi/Ethernet communication enable remote management and diagnostics without additional accessories. ### Cons - **Fewer MPPTs Than the Sungrow SG125HX** - The series provides 10 MPPT trackers (20 DC inputs), whereas its direct competitor, the Sungrow SG125HX, offers 12 MPPTs and 24 DC inputs within the same power class. In highly complex projects involving multiple exposure orientations or several PV arrays with differing tilt angles, this difference may necessitate the use of additional optimizers or a redesign of the string layout. ## About this series Sofar Solar SOFAR 100-125KTLX-G4 series are three-phase grid-tie inverters designed for large commercial and industrial installations, both on rooftops and ground frames. What distinguishes them is **10 independent MPPTs**, which facilitate the design of complex PV fields: they allow flexible connection of strings with different orientations and better mitigate losses during partial shading or uneven module soiling. In practice, high European efficiency also matters - it means better performance in real-world operating conditions typical for Polish installations, not just in the lab, translating to more stable energy production throughout the year. For safety and reliability, the manufacturer has included **integrated AC/DC overvoltage protection (Type II)**, as well as diagnostic functions such as I-V curve scanning, useful during maintenance and detecting performance drops. Regarding connectivity, there are remote monitoring solutions available - including **Modbus and online monitoring** with communication via WiFi/Ethernet modules (depending on configuration). This is the series for investors who expect installation performance monitoring, grid compliance, and durability confirmed by certification. ## Questions ### How many independent MPPTs does the SOFAR 100-125KTLX-G4 series have, and why does it matter for large-scale installations? The SOFAR 100-125KTLX-G4 series is equipped with 10 independent MPPTs and a total of 20 string inputs. In practice, this allows installers to connect strings with different orientations, tilt angles, or lengths without mutual interference. For large rooftop and ground-mount installations in the 100-125 kW range, this translates into significantly lower losses under partial shading conditions and simplifies PV system design. ### What is the warranty on the SOFAR 100-125KTLX-G4 inverters? The standard manufacturer's warranty for the SOFAR 100-125KTLX-G4 series is 10 years. Upon product registration on the Sofar Solar platform, the warranty can be extended to 12 years. This is a critical parameter for commercial and industrial investments, where the typical payback period is 6-10 years - the warranty covers that entire period and beyond. ### Is the SOFAR 125KTLX-G4 inverter compatible with bifacial modules and panels rated above 500 W? Yes, the SOFAR 100-125KTLX-G4 series is compatible with modern high-power modules exceeding 500 W, including bifacial panels. Each of the 10 MPPTs accepts up to 40 A of input current, and the supported voltage range spans from 180 V to 1000 V. An additional DC overload margin of over 150% allows safe pairing with higher peak-power panels without risk of inverter overload. ### What certifications does the SOFAR 100-125KTLX-G4 series hold, and does it meet the requirements of Polish grid operators? The SOFAR 100-125KTLX-G4 series holds the VDE-AR-N 4110 certification, which confirms compliance with the requirements for installations connected to medium-voltage grids - mandatory for many grid operators in Poland for projects exceeding 50 kW. The inverters also comply with IEC 62116 and IEC 61727 standards. Integrated Type II AC/DC surge protection is standard across the series. ### How does remote monitoring work for the SOFAR 100-125KTLX-G4 inverters, and are additional devices required? The SOFAR 100-125KTLX-G4 series supports communication via Wi-Fi, Ethernet, RS485 (Modbus), and optionally 4G. For basic online monitoring, the included Wi-Fi module is sufficient - it enables real-time visibility into energy production, alarms, and operating parameters through the SolarmanBusiness platform or via Modbus for SCADA integration. The built-in I-V curve scan function facilitates string diagnostics without requiring an on-site service visit. ### Is the SOFAR 100KTLX-G4 inverter suitable for ground-mount installations, or only for industrial rooftops? The SOFAR 100-125KTLX-G4 series is designed for both rooftop installations on industrial and commercial buildings and ground-mount solar farms. The IP66-rated enclosure ensures reliable protection during prolonged outdoor operation. The inverter weighs approximately 90 kg, which requires an appropriate mounting structure - the manufacturer provides dedicated wall-mount brackets. The flexibility of 10 independent MPPTs is particularly advantageous in ground-mount farms with multiple module rows oriented differently. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/inverters/sofar-100-125ktlx-g4-datasheet-2025-11-20-v2-0-en-int-f7258b6f38e3.pdf) ## Alternatives | Inverter | Rated AC | Euro efficiency | MPPT | Weight | Difference | | --- | --- | --- | --- | --- | --- | | [Huawei SUN2000-100KTL-M2](https://comparepv.com/inverter/huawei-sun2000-100ktl-m2) | 100 kW | 98.6% | 10 | 93.0 kg | 18.0 kg heavier | | [Huawei SUN2000-100KTL-M1 (@480 V)](https://comparepv.com/inverter/huawei-sun2000-100ktl-m1-480-v) | 100 kW | 98.6% | 10 | 90.0 kg | 15.0 kg heavier | | [Sungrow SG110CX](https://comparepv.com/inverter/sungrow-sg110cx) | 100 kW | 98.5% | 9 | 89.0 kg | -1 MPPT, 14.0 kg heavier | | [SMA Solar Sunny Highpower PEAK3 SHP 100-21](https://comparepv.com/inverter/sma-solar-sunny-highpower-peak3-shp-100-21) | 100 kW | 98.5% | 1 | 99.0 kg | -9 MPPT, 24.0 kg heavier | | [SMA Solar Sunny Highpower Storage SHPS 100-21](https://comparepv.com/inverter/sma-solar-sunny-highpower-storage-shps-100-21) | 100 kW | 98.5% | | 99.0 kg | 24.0 kg heavier | | [Solis-100K-5G](https://comparepv.com/inverter/ginlong-solis-solis-100k-5g) | 100 kW | 98.5% | 9 | 82.0 kg | -1 MPPT, 7.0 kg heavier | | [Solis-100K-HV-5G](https://comparepv.com/inverter/ginlong-solis-solis-100k-hv-5g) | 100 kW | 98.5% | 9 | 82.0 kg | -1 MPPT, 7.0 kg heavier | | [Growatt MAX 100KTL3-X LV](https://comparepv.com/inverter/growatt-max-100ktl3-x-lv) | 100 kW | 98.4% | 10 | 84.0 kg | 9.0 kg heavier | --- Source: https://comparepv.com/inverter/sofar-solar-sofar-100ktlx-g4