--- title: "Sungrow SG100CX Grid-tie Inverter: Specs & Datasheet | ComparePV" description: "Sungrow SG100CX 100 kW grid-tie inverter. Specs: 9 MPPT, 1100 V max DC input, 89.0 kg." source: "https://comparepv.com/inverter/sungrow-sg100cx" updated: 2026-01-16 --- # Sungrow SG100CX ## Identity - **Manufacturer:** Sungrow - **Model:** SG100CX - **Series:** SG100CX - **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 | - | 98.2% | | | | MPPT trackers | 9 | 4 | Strong - top 17% | 16 | | Max DC input voltage | 1100 V | 1100 V | Typical | 3 | | Weight per kW | 0.9 | 1.1 | Typical | 63 | | Warranty | - | 5 yrs | | | ## Specification ### AC output - **Rated AC power:** 100 kW - **Max AC power:** 110.00 kW - **Max apparent power:** 110.00 kVA - **Phases:** Three-phase - **Nominal AC voltage:** 400 V - **Max AC current:** 158.8 A - **Grid frequency:** 50 Hz - **Power factor:** 0.8 leading … 0.8 lagging - **Harmonic distortion (THD):** 3.0 % ### PV input - **Max DC voltage:** 1100 V - **MPPT voltage range:** 200 to 1000 V - **Start-up voltage:** 250 V - **MPPT trackers:** 9 - **Max input current per MPPT:** 26.0 A - **Max short-circuit current per MPPT:** 40.0 A ### Efficiency - **Max efficiency:** 98.7 % ### Physical - **Dimensions:** 660 × 1051 × 362 mm - **Weight:** 89.0 kg - **Enclosure:** IP66 - **Cooling:** forced-air - **Operating temperature:** -30 to 60 °C - **Max humidity:** 100 % - **Max altitude:** 5000 m ### Connectivity and protection - **Interfaces:** Wi-Fi, Bluetooth, Display - **Protocols:** RS485, GPRS (optional), 4G (optional), WiFi (optional), Bluetooth (via app) - **Protection:** DC switch, Surge protection ### Warranty and certificates - **Certifications:** IEC 62109-1, IEC 62109-2, IEC 61727, IEC 62116, GB/T 19964, NB/T 32004-2018, CGC/GF 035-2013, CNCA/CTS0002-2014, Q/GDW 1617-2015, GB/T 32826-2016, GB/T 32892-2016 ### Pros - **#1 Bankability in BNEF 2025** - Sungrow ranked first in the BloombergNEF Inverter Bankability Survey 2025 for the sixth consecutive year, achieving 100% recognition among surveyed financial institutions. For C&I projects, this translates into a tangible advantage when securing non-recourse financing and obtaining insurer approval without additional due diligence requirements. - **9 Independent MPPTs, Max. 1,100 V DC** - Nine independent MPPT inputs (max. 2 strings each, 26 A per MPPT), combined with a DC input voltage of up to 1,100 V - 10% higher than the 1,000 V standard offered by many competitors - allow for longer string designs and support industrial rooftops with multiple orientations without the need for a string combiner. - **Fuseless Design + I-V Curve Scanning** - Elimination of DC fuses reduces O&M costs and minimizes failure points. The built-in remote I-V curve scanning via the iSolarCloud platform (using a Sungrow-patented algorithm) enables precise fault localization within strings without an on-site service visit, cutting diagnosis time from hours to minutes. - **IP66 + Corrosion Category C5** - The enclosure meets IP66 (dust-tight, protected against powerful water jets) and corrosion category C5 per ISO 12944 - the highest rating for industrial and marine environments. This extends the inverter's range of suitable applications to port installations, chemical plants, and coastal zones without the need for additional protective enclosures. - **98.7% Peak Efficiency, Transformerless Design** - A maximum efficiency of 98.7% in a transformerless design places the SG100CX in the top quartile of three-phase 100 kW C&I inverters. The absence of a transformer reduces weight and thermal losses, which is particularly significant for annual energy yield under Polish climate conditions characterized by low irradiance and frequent cloud cover. ### Cons - **89 kg Unit Weight - Installation Logistics** - The inverter weighs 89 kg with dimensions of 1,051×660×362.5 mm, requiring a crew of at least three people or mechanical lifting equipment for wall or skid mounting. By comparison, the Huawei SUN2000-100KTL-M1 weighs approximately 75 kg - a 14 kg difference that translates into higher labor costs on multi-inverter installations. ## About this series The Sungrow SG100CX series are three-phase grid-tie inverters designed for commercial and industrial installations, focusing on flexible PV string design and rapid diagnostics. Utilizing **multiple independent MPPTs**, they facilitate the management of strings with different orientations and lengths, while also helping to minimize losses due to partial shading or uneven module soiling. In practice, this translates to more stable energy yields in challenging rooftop and ground-mounted conditions. The SG100CX stands out with the **intelligent performance optimization feature under shading** and comprehensive service support: string monitoring, I-V curve scanning, and precise anomaly detection shorten the O&M response time. High **European efficiency** means fewer losses in real-world operating conditions typical of Poland, resulting in greater annual energy production. Communication and monitoring are straightforward thanks to **remote monitoring** - depending on the configuration, options include Wi-Fi or cellular connectivity, as well as integration with monitoring platforms. The series is designed for demanding environments (IP rating and surge protection), and compliance with regulations and EU documentation facilitates approvals. This is the choice for C&I investors seeking predictable yields and reliable service support. ## Questions ### How many independent MPPT trackers does the Sungrow SG100CX inverter have, and what does this mean in practice? The SG100CX features 9 independent MPPT trackers with a total of 18 string inputs. This allows each string of panels to operate at its own optimal power point independently of the others. In practice, this translates to reduced energy losses in installations with multiple roof orientations, varying string lengths, or partial shading affecting portions of the PV array. ### What is the efficiency of the Sungrow SG100CX, and does it perform well under typical Polish weather conditions? The SG100CX achieves a maximum efficiency of approximately 98.7%, while its European efficiency (EU efficiency) reaches 98.5%. The EU efficiency metric is calculated under variable load conditions representative of typical European irradiance profiles, making it a reliable indicator of real-world losses in the Polish climate, where overcast skies and low irradiance levels are common. A high EU efficiency rating directly translates into greater annual energy yield. ### Does the Sungrow SG100CX support remote system monitoring, and what diagnostic capabilities does it offer? Yes, the SG100CX supports remote monitoring via Sungrow's iSolarCloud platform, accessible through both a web browser and a mobile application. The inverter enables per-string monitoring, I-V curve scanning, and automatic anomaly detection. Communication is established via Wi-Fi or an optional 4G module, depending on the site configuration. These features allow service teams to quickly pinpoint faults without the need for an on-site visit. ### What warranty is standard on the Sungrow SG100CX inverter? The standard manufacturer's warranty for Sungrow commercial inverters in the CX series is 5 years. However, Sungrow offers extended warranty packages that can bring the total coverage period to up to 25 years. The warranty extension can be purchased at the time of the original sale or within the first 3 years of the installation date. This should be factored into total cost of ownership planning for commercial and industrial (C&I) projects. ### Is the Sungrow SG100CX suitable for utility-scale ground-mount installations and large flat-roof applications? Yes, the SG100CX is designed for commercial and industrial installations in the hundreds-of-kilowatts power range. Its IP65-rated enclosure allows outdoor installation in both ground-mount solar farms and on the flat roofs of industrial buildings and warehouses. The wide DC input voltage range (200-1100 V) provides significant design flexibility when engineering PV arrays with varying string configurations. ### How does the Sungrow SG100CX differ from the newer SG110CX model, and which one should be selected? The Sungrow SG110CX is an evolution of the SG100CX, offering a higher nominal output power of 110 kW while retaining the same core architecture of 9 MPPT trackers and 18 string inputs. The SG110CX introduces, among other improvements, an increased maximum DC input current per MPPT and an upgraded ingress protection rating of IP66 instead of IP65, providing greater resistance to water ingress. For new projects where the installation capacity permits, the SG110CX is worth considering as the more current option with better long-term service support. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/inverters/ds-20191025-sg100cx-v13-1-cn-1-f7b7de69ee63.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 | +1 MPPT, 4.0 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 | +1 MPPT, 1.0 kg heavier | | [Sungrow SG110CX](https://comparepv.com/inverter/sungrow-sg110cx) | 100 kW | 98.5% | 9 | 89.0 kg | Similar on paper | | [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 | -8 MPPT, 10.0 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 | 10.0 kg heavier | | [Solis-100K-5G](https://comparepv.com/inverter/ginlong-solis-solis-100k-5g) | 100 kW | 98.5% | 9 | 82.0 kg | 7.0 kg lighter | | [Solis-100K-HV-5G](https://comparepv.com/inverter/ginlong-solis-solis-100k-hv-5g) | 100 kW | 98.5% | 9 | 82.0 kg | 7.0 kg lighter | | [Growatt MAX 100KTL3-X LV](https://comparepv.com/inverter/growatt-max-100ktl3-x-lv) | 100 kW | 98.4% | 10 | 84.0 kg | +1 MPPT, 5.0 kg lighter | --- Source: https://comparepv.com/inverter/sungrow-sg100cx