--- title: "Deye SUN-10K-G03 Grid-tie Inverter: Specs & Datasheet | ComparePV" description: "Deye SUN-10K-G03 10 kW grid-tie inverter. Specs: 97.5% European efficiency, 2 MPPT, 1000 V max DC input, 11.0 kg." source: "https://comparepv.com/inverter/deye-sun-10k-g03" updated: 2026-01-17 --- # Deye SUN-10K-G03 ## Identity - **Manufacturer:** Deye - **Model:** SUN-10K-G03 - **Series:** SUN-K-G03 - **Rated AC power:** 10 kW - **Type:** Grid-tie - **Phases:** Three-phase ## How it compares Compared against 266 inverters from 6 to 12 kW. Ranks are within that class. | Measure | This inverter | Class median | Standing | Rank in class | | --- | --- | --- | --- | --- | | European efficiency | 97.5% | 97.6% | Typical | 104 | | MPPT trackers | 2 | 2 | Typical | 46 | | Max DC input voltage | 1000 V | 1000 V | Typical | 59 | | Weight per kW | 1.1 | 2.3 | Strong - top 1% | 2 | | Warranty | - | 5 yrs | | | ## Specification ### AC output - **Rated AC power:** 10 kW - **Max AC power:** 11.00 kW - **Phases:** Three-phase - **Nominal AC voltage:** 400 V - **Max AC current:** 15.9 A - **Grid frequency:** 50 Hz - **Power factor:** 0.8 leading to 0.8 lagging - **Harmonic distortion (THD):** 3.0 % ### PV input - **Max DC input power:** 13.00 kW - **Max DC voltage:** 1000 V - **MPPT voltage range:** 120 to 850 V - **Start-up voltage:** 140 V - **MPPT trackers:** 2 - **Max input current per MPPT:** 13.0 A - **Max short-circuit current per MPPT:** 19.5 A ### Efficiency - **European efficiency:** 97.5 % - **Max efficiency:** 98.3 % ### Physical - **Dimensions:** 457 × 330 × 205 mm - **Weight:** 11.0 kg - **Enclosure:** IP65 - **Cooling:** natural - **Noise:** 25 dB - **Operating temperature:** -25 to 65 °C - **Max humidity:** 100 % - **Max altitude:** 2000 m ### Connectivity and protection - **Interfaces:** Wi-Fi, Ethernet, Display - **Protocols:** RS485, RS232, WiFi, LAN - **Protection:** DC switch, Surge protection ### Warranty and certificates - **Certifications:** EN50549-1, IEC61727, IEC62116, IEC60068, IEC61683, VDE 0126-1-1, RD1699, UNE 206006 IN, UNE 206007-1 IN, UNE 217001 IN, IEC62109-1, IEC62109-2, IEC61000-6-1, IEC61000-6-3, IEC61000-3-2, IEC61000-3-11, IEC61000-3-12 ### Pros - **European efficiency reaches 98.2%** - The SUN-K-G03 series inverters achieve a maximum efficiency of 98.8% and a European standard of 98.2% (according to Deye's official datasheet for 70-110 kW variants), placing them among the top performers in the commercial segment of three-phase string inverters. This translates to conversion losses below 2% under typical operating conditions in Poland, directly resulting in a higher annual energy yield. - **Up to 6 independent MPPT trackers** - The series offers up to 6 MPPT channels with a wide input voltage range of 200-850 V DC, enabling independent optimization of PV strings on arrays with different orientations or under partial shading. Compared to inverters with 2-3 MPPT channels, this translates to a noticeably smaller impact of local losses on the overall system performance in commercially complex installations. - **EN 50549 and VDE-AR-N 4105 certificates** - The series has confirmed TÜV/SGS certificates for the EN 50549-1:2019 standard and VDE-AR-N 4105, which is a requirement for grid connection in Poland, Germany, and most EU markets, eliminating the need for additional testing. Deye makes the full certification documentation publicly available on deyeinverter.com, simplifying the formal procedures for investors. - **Scalability: 4-110 kW on a single platform** - Within the G03 family, options range from 4 kW (G03-LV) to 30-60 kW and up to 70-110 kW, allowing the use of the same brand, monitoring ecosystem, and service procedures in projects of different scales. For developers managing a portfolio of commercial installations, this means simplifying the supply chain and standardizing maintenance processes. - **IP65 rating + multi-channel communication** - The enclosure, rated IP65, provides durability in outdoor environments (operating range -25°C to +60°C), while the integrated interfaces - RS485, RS232, WiFi, LAN, GPRS, 4G, and Bluetooth - enable integration with SCADA systems and cloud-based monitoring without the need for additional communication modules. This is a significant advantage in industrial installations that require remote diagnostics. ### Cons - **The field service operation in Europe is still under development.** - While Deye has a service center in Poland (Warsaw, Aleje Jerozolimskie 212), users on the DIY Solar Power Forum report difficulties in coordinating support when purchasing through foreign distributors and delays in receiving service responses. Key players in the segment - SMA and Fronius - have a denser, contractually-defined network of authorized partners with guaranteed response times (SLA), which is important for maintenance and operation agreements for commercial installations. - **Outside the top 5 in global rankings** - According to the Wood Mackenzie (H1 2025) and PVBL Top 20 rankings for 2025, Deye ranks in the top 20 inverter suppliers, alongside Huawei, Sungrow, SMA, Fronius, and Solis/Ginlong, which together account for over 60% of global shipments. For projects requiring bank financing or due diligence audits by financial institutions, lower brand recognition may necessitate additional justification in the project documentation. ## About this series The Deye SUN-K-G03 series are **three-phase string-type grid-tie inverters**, designed for commercial and industrial installations where reliable operation, flexible PV string design, and high grid energy quality are essential. What distinguishes them is the **multi-channel MPPT**, which facilitates yield optimization regardless of different roof orientations, uneven solar irradiance, or partial shading - preventing the entire system from being dragged down, allowing individual sections to operate closer to their own optimum. In practice, the high European efficiency translates to significantly lower losses under typical operating conditions in Poland, supporting predictable annual energy production. The series also offers **monitoring and communication** in various configurations - from wireless solutions to wired communication with access to diagnostics and performance analysis via platform/app. For safety and grid compliance, robust **DC/AC protection** and adherence to common grid connection standards (including EN 50549, VDE-AR-N 4105) are crucial, along with the manufacturer's standard warranty. ## Questions ### How many MPPT trackers does the Deye SUN-K-G03 series have, and why is this important? Depending on the model's power, the SUN-K-G03 series offers between 3 and 6 independent MPPT trackers. Each tracker optimizes a separate section of the panels, which is crucial in commercial installations where the panels have different orientations or are partially shaded. Instead of limiting the performance of the entire system to the weakest component, each PV string operates close to its optimum, increasing annual energy yield. ### What is the warranty on the Deye SUN-K-G03 inverters? The standard manufacturer's warranty for the SUN-K-G03 series is 5 years. However, many distributors offer extended warranty packages that can last up to 12 years. It is advisable to inquire with the seller about the terms of extending the warranty before making a purchase, as commercial and industrial inverters typically have a lifespan of 20-25 years, and a long warranty can provide real protection for the return on investment. ### What is the efficiency of the Deye SUN-K-G03 inverters, and does this matter in Poland? The maximum efficiency of the SUN-K-G03 series reaches 98.8%, while European standards average around 98.2-98.3%. The latter value is more relevant in Polish conditions, as it takes into account the typical power distribution in our climate - more hours of partial sunlight. The higher European efficiency directly translates to lower conversion losses and more predictable annual energy production. ### What types of installations are the Deye SUN-K-G03 series suitable for? The SUN-K-G03 series is a range of three-phase grid-tie inverters designed for commercial and industrial applications: production halls, warehouses, logistics centers, and agro-PV farms. With a power range from a few to 110 kW, the device can be adapted for both small commercial buildings and large string configurations. This product is not intended for typical home-based consumers - for single-phase applications, other Deye series are available. ### Does the Deye SUN-K-G03 support remote monitoring, and what communication options are available? Yes, the SUN-K-G03 series offers built-in Wi-Fi and RS485 communication. This allows the inverter to be connected to a Deye monitoring platform and to track production, diagnostics, and operating history through a web browser or mobile app. The RS485 option enables integration with building management (BMS) and industrial SCADA systems, which is important in commercial installations. ### What safety features does the Deye SUN-K-G03 inverter have, and does it meet Polish connection standards? The SUN-K-G03 series is equipped with AC and DC type II surge protection devices (SPD), a DC disconnect, protection against reverse polarity, short circuits, and overheating, as well as current leakage monitoring to ground. The inverters comply with EN 50549 and VDE-AR-N 4105 standards, which are the standards required by Polish grid operators when connecting commercial installations to the distribution network. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/inverters/b-threephasesun-4-5-6-7-8-10k-g03-feca80429213.pdf) ## Alternatives | Inverter | Rated AC | Euro efficiency | MPPT | Weight | Difference | | --- | --- | --- | --- | --- | --- | | [Growatt MOD 10KTL3-X2(Pro)](https://comparepv.com/inverter/growatt-mod-10ktl3-x2-pro) | 10 kW | 98.2% | 2 | 14.6 kg | +0.7 pp efficiency, 3.6 kg heavier | | [Growatt MOD 10KTL3-X](https://comparepv.com/inverter/growatt-mod-10ktl3-x) | 10 kW | 98.1% | 2 | 14.0 kg | +0.6 pp efficiency, 3.0 kg heavier | | [Sungrow SG10KTL-M](https://comparepv.com/inverter/sungrow-sg10ktl-m) | 10 kW | 98.1% | 2 | 20.0 kg | +0.6 pp efficiency, 9.0 kg heavier | | [Sungrow SG10RT-20](https://comparepv.com/inverter/sungrow-sg10rt-20) | 10 kW | 98.1% | 2 | 17.0 kg | +0.6 pp efficiency, 6.0 kg heavier | | [SOFAR 11KTLX-G3](https://comparepv.com/inverter/sofar-solar-sofar-11ktlx-g3) | 10 kW | 98.0% | 2 | 18.0 kg | +0.5 pp efficiency, 7.0 kg heavier | | [SOFAR 10KTLX-G3-A](https://comparepv.com/inverter/sofar-solar-sofar-10ktlx-g3-a) | 10 kW | 98.0% | 2 | 18.0 kg | +0.5 pp efficiency, 7.0 kg heavier | | [SMA Solar STP10.0-3AV-40](https://comparepv.com/inverter/sma-solar-stp10-0-3av-40) | 10 kW | 98.0% | 2 | 20.5 kg | +0.5 pp efficiency, 9.5 kg heavier | | [GoodWe GW10KN-DT](https://comparepv.com/inverter/goodwe-gw10kn-dt) | 10 kW | 98.0% | 2 | 24.0 kg | +0.5 pp efficiency, 13.0 kg heavier | --- Source: https://comparepv.com/inverter/deye-sun-10k-g03