--- title: "Sungrow S1600S Microinverter: Specs & Datasheet | ComparePV" description: "Sungrow S1600S 1.6 kW microinverter. Specs: 95.4% European efficiency, 60 V max DC input, 7.5 kg." source: "https://comparepv.com/inverter/sungrow-s1600s" updated: 2026-01-16 --- # Sungrow S1600S ## Identity - **Manufacturer:** Sungrow - **Model:** S1600S - **Series:** S450S/S800S/S1000S/S1600S - **Rated AC power:** 1.6 kW - **Type:** Microinverter - **Phases:** Single-phase ## How it compares Compared against 42 microinverters. Ranks are within that class. | Measure | This inverter | Class median | Standing | Rank in class | | --- | --- | --- | --- | --- | | European efficiency | 95.4% | 95.4% | Typical | 1 | | MPPT trackers | - | 2 | | | | Max DC input voltage | 60 V | 60 V | Typical | 4 | | Weight per kW | 4.7 | 4.0 | Typical | 29 | | Warranty | - | 10 yrs | | | ## Specification ### AC output - **Rated AC power:** 1.6 kW - **Max apparent power:** 1.60 kVA - **Phases:** Single-phase - **Nominal AC voltage:** 230 V - **Max AC current:** 7.3 A - **Grid frequency:** 50 Hz - **Power factor:** >0.99 at rated / adjustable 0.8 leading to 0.8 lagging - **Harmonic distortion (THD):** 5.0 % ### PV input - **Max DC voltage:** 60 V - **MPPT voltage range:** 16 to 60 V - **Start-up voltage:** 22 V - **Max input current per MPPT:** 16.0 A - **Max short-circuit current per MPPT:** 20.0 A ### Efficiency - **European efficiency:** 95.4 % - **Max efficiency:** 96.2 % ### Physical - **Dimensions:** 271 × 361 × 55 mm - **Weight:** 7.5 kg - **Enclosure:** IP67 - **Cooling:** natural - **Operating temperature:** -40 to 65 °C - **Max humidity:** 100 % - **Max altitude:** 2000 m ### Connectivity and protection - **Interfaces:** Wi-Fi, Display - **Protocols:** WLAN - **Protection:** Surge protection ### Warranty and certificates - **Certifications:** EN/IEC 62109-1/-2, EN/IEC 61683, EN 50530, EN/IEC 61000-6-1/-2/-3/-4, VDE 4105, VDE 0126, UNE 217002, CEI 0-21, IEC 60529, IEC 62116, EN 50549, PSE RFG, EN 301489, EN 300328, EN/IEC 62311, ETSI EN 303 645 ### Pros - **IP67 Rating + Full Output Power up to 60°C Ambient** - The IP67 enclosure and proprietary microchannel heat sink design (thermal conductivity up to 130 W/mK) allow the unit to sustain full rated output power at an ambient temperature of 60°C. Most competitors - including the APsystems DS3 - begin throttling output at ~45°C, which translates into measurable yield losses under real-world summer rooftop conditions. - **Per-Module Individual MPPT (16-60 V)** - The 16-60 V MPPT range with independent maximum power point tracking for each module eliminates mismatch losses under partial shading and allows mixed roof-face orientations without the need to group modules into matched strings. In urban environments affected by chimney or skylight shading, the energy gain versus a string inverter configuration is typically 5-25%, depending on roof geometry. - **Top BNEF Tier-1 Bankability Ranking 2024** - Sungrow ranked #1 in the BloombergNEF Tier-1 bankability index for 2024 - the fifth consecutive year - and has over 515 GW of inverters installed across 170 countries. For a 15-25-year system lifetime, this translates to minimal manufacturer exit risk and confidence that warranty claims will be honored throughout the installation's operational life. - **Factory-Integrated Rapid Shutdown** - DC rapid shutdown compliant with IEC/NEC 2020 requirements is integrated at the factory, eliminating the need for add-on external modules (e.g., SolarEdge SafeDC requires separate LS units). This simplifies system design and reduces overall BoS cost. - **Module-Level WLAN Monitoring - No Gateway Required** - Built-in WLAN communication enables per-module monitoring without a separate data logger or RS485 wiring. The SolarInfo app provides diagnostics that can identify individual panel faults or degradation without requiring a site visit. ### Cons - **Peak Efficiency of 96.2% - Below the Segment Leader** - The Enphase IQ8+ achieves a peak efficiency of 97.5%, the APsystems QT2 reaches 96.8%, and the Sungrow S-series comes in at 96.2%. On a 10 kWp system with an annual specific yield of 1,000 kWh/kWp, the 1.3 percentage-point gap versus Enphase amounts to approximately 130 kWh per year in foregone generation - a non-trivial difference over the system lifetime. - **Microinverter Segment Debut Only in 2024** - The S-series was unveiled at Intersolar Europe in June 2024 as Sungrow's first microinverter product line. By comparison, Enphase has over 15 years of field data from microinverter deployments, and Hoymiles has over 10. Long-term failure-rate statistics specific to under-module installation - covering vibration stress, thermal cycling, and MC4 connector hermeticity - are not yet available for this particular architecture. - **15-Year Warranty vs. 25 Years from the Market Leader** - The standard warranty is 15 years, compared to 25 years offered by both Enphase IQ8 and the Hoymiles HM-series. For a residential prosumer system designed for a 25-30-year service life, the likely need to replace MLPE units at the 15-year mark represents an additional cost on the order of 20-30% of the original microinverter investment. ## About this series The Sungrow S450S/S800S/S1000S/S1600S series are **grid-tie (on-grid) inverters** designed for single-module operation - making installations more flexible and ideal for complex rooftop geometries. Their key advantage is the **multi-MPPT architecture** (depending on the model), which allows independent power management for different roof orientations and minimizes losses during partial shading or panel mismatches. In practice, this translates to more stable energy production under real-world operating conditions. High **European efficiency** means the equipment is optimized for typical sunlight and temperature conditions in Europe - delivering performance closer to annual yields, not just in the lab. The series features **module-level monitoring** and wireless (WLAN) communication, simplifying diagnostics and service. Applications: residential and commercial installations, especially where detailed monitoring, safety (including rapid shutdown), and weather resistance (IP67-rated enclosure) are crucial. ## Questions ### How do the Sungrow S450S/S800S/S1000S/S1600S microinverters differ from a conventional string inverter? The microinverters in this series operate at the individual panel level rather than across an entire string of modules. This means that shading of a single panel by a chimney, antenna, or leaf does not reduce the output of the remaining panels. Each module has its own dedicated MPPT tracking point, which is particularly advantageous on roofs with complex geometry or multiple surface orientations. ### What warranty is provided for the Sungrow S450S, S800S, S1000S, and S1600S microinverters? Sungrow provides a 15-year manufacturer's warranty for this microinverter series, which also covers access to the monitoring software platform. This is significantly longer than the standard 10-year warranty offered by some competitors, resulting in reduced risk of service costs throughout the entire operational lifetime of the installation. ### Which PV modules are compatible with the Sungrow S450S/S800S/S1000S/S1600S series? The manufacturer recommends modules with a power output of 375 W to 570 W per MPPT input, with a DC input voltage range of 16-60 V. The series is compatible with standard monofacial and bifacial panels. Before selecting modules, it is advisable to verify the product datasheet date, as the S1600S model supports two panels simultaneously (1600 W AC output), which allows the number of devices on the roof to be reduced. ### Are the Sungrow S450S/S1600S microinverters suitable for a roof with a complex layout or partial shading? Yes, this is precisely the key advantage of this series. The multiple independent MPPT architecture ensures that each panel operates at its own optimal power point regardless of the condition of adjacent modules. In installations featuring dormers, chimneys, antennas, or multiple roof orientations, energy yield gains can be significantly higher than with a conventional string inverter. ### How does monitoring work in the Sungrow S450S/S800S/S1000S/S1600S series, and do I need an additional data logger? The series provides module-level monitoring via wireless WLAN communication. Data is accessible through the iSolarCloud app and web platform. Depending on the installation configuration, a dedicated communication gateway or router may be required - it is advisable to consult your installer regarding the specific wiring and communication diagram for the selected model. ### Are the Sungrow S450S/S800S/S1000S/S1600S microinverters resistant to harsh weather conditions? Yes. The enclosure meets IP67 ingress protection rating, providing complete protection against dust and the ability to withstand submersion in water up to 1 m deep for 30 minutes. In addition, C5 certification confirms resistance to industrial and coastal environments with elevated corrosivity. The devices can operate at temperatures ranging from -40 °C to +65 °C, making them well suited for the Polish climate. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/inverters/ds-20250414-s450s-s800s-s1000s-s1600s-datasheet-v10-en-eur-a8e28f59122e.pdf) ## Alternatives | Inverter | Rated AC | Euro efficiency | MPPT | Weight | Difference | | --- | --- | --- | --- | --- | --- | | [Growatt NEO 1600M-X2](https://comparepv.com/inverter/growatt-neo-1600m-x2) | 1.6 kW | | 4 | 5.1 kg | 2.4 kg lighter | | [GoodWe GW1600-MIS](https://comparepv.com/inverter/goodwe-gw1600-mis) | 1.6 kW | | 4 | 5.3 kg | 2.2 kg lighter | | [Deye SUN1600G3-EU-230](https://comparepv.com/inverter/deye-sun1600g3-eu-230) | 1.6 kW | | 4 | 5.2 kg | 2.3 kg lighter | | [Growatt NEO 1800M-X2](https://comparepv.com/inverter/growatt-neo-1800m-x2) | 1.8 kW | | 4 | 5.1 kg | +0.2 kW, 2.4 kg lighter | | [GoodWe GW1800-MIS](https://comparepv.com/inverter/goodwe-gw1800-mis) | 1.8 kW | | 4 | 5.3 kg | +0.2 kW, 2.2 kg lighter | | [Deye SUN1800G3-EU-230](https://comparepv.com/inverter/deye-sun1800g3-eu-230) | 1.8 kW | | 4 | 5.2 kg | +0.2 kW, 2.3 kg lighter | | [Deye SUN1300G3-EU-230](https://comparepv.com/inverter/deye-sun1300g3-eu-230) | 1.3 kW | | 4 | 5.2 kg | -0.3 kW, 2.3 kg lighter | | [Deye SUN1200G-230-EU](https://comparepv.com/inverter/deye-sun1200g-230-eu) | 1.3 kW | | 4 | 6.3 kg | -0.3 kW, 1.2 kg lighter | --- Source: https://comparepv.com/inverter/sungrow-s1600s