--- title: "GoodWe GWT10K-SDT-30 (SDT G3 series) Grid-tie Inverter: Specs & Datasheet | ComparePV" description: "GoodWe GWT10K-SDT-30 (SDT G3 series) 10 kW grid-tie inverter. Specs: 2 MPPT, 1100 V max DC input, 14.7 kg." source: "https://comparepv.com/inverter/goodwe-gwt10k-sdt-30-sdt-g3-series" updated: 2026-01-16 --- # GoodWe GWT10K-SDT-30 (SDT G3 series) ## Identity - **Manufacturer:** GoodWe - **Model:** GWT10K-SDT-30 (SDT G3 series) - **Series:** SDT G3 - **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 | - | 97.6% | | | | MPPT trackers | 2 | 2 | Typical | 46 | | Max DC input voltage | 1100 V | 1000 V | Strong - top 12% | 1 | | Weight per kW | 1.5 | 2.3 | Strong - top 8% | 23 | | Warranty | - | 5 yrs | | | ## Specification ### AC output - **Rated AC power:** 10 kW - **Max AC power:** 11.00 kW - **Max apparent power:** 11.00 kVA - **Phases:** Three-phase - **Nominal AC voltage:** 380 V - **Max AC current:** 16.7 A - **Grid frequency:** 50 Hz - **Power factor:** ~1 (0.8 leading … 0.8 lagging adjustable) - **Harmonic distortion (THD):** 3.0 % ### PV input - **Max DC voltage:** 1100 V - **MPPT voltage range:** 140 to 1000 V - **Start-up voltage:** 160 V - **MPPT trackers:** 2 - **Max input current per MPPT:** 22.0 A - **Max short-circuit current per MPPT:** 27.5 A ### Efficiency - **Max efficiency:** 98.6 % ### Physical - **Dimensions:** 392 × 491 × 204 mm - **Weight:** 14.7 kg - **Enclosure:** IP66 - **Cooling:** natural - **Noise:** 29 dB - **Operating temperature:** -30 to 60 °C - **Max humidity:** 100 % - **Max altitude:** 4000 m ### Connectivity and protection - **Interfaces:** Display - **Protocols:** RS485, 4G - **Protection:** AFCI, DC switch, Surge protection ### Warranty and certificates - **Certifications:** NB/T 32004 (grid connection standard), NB/T 32004 (safety standard) ### Pros - **Maximum efficiency of up to 98.6%** - Models with a power output of 4-30 kW achieve a maximum efficiency of 98.6%, while models with a power output of 25-40 kW achieve even 98.8%. The European efficiency level of approximately 98.0% represents actual conversion losses below 2% in typical Polish solar profiles, which translates to a higher annual yield compared to devices from the previous generation of SDT G2. - **150% DC over-current protection and 110% AC over-current protection** - The ability to connect a DC string with power up to 150% of its nominal AC power allows the designer to use more modules without increasing the inverter's power, which shortens the return on investment by better filling the production curve during morning and evening hours. A maximum input current of 22 A per string allows for the use of high-current N-type modules. - **BNEF Tier 1, Q2 2025, >100 GW globally** - GoodWe is featured on BloombergNEF's Tier 1 Power Inverter Manufacturer list for Q2 2025, confirming its acceptance by financial institutions that fund PV projects with non-recourse financing. With over 100 GW of installed capacity globally (as of Q1 2025), this demonstrates the maturity of its supply chain and the availability of technical support. - **10-year warranty with no additional cost** - When registering a device on the SEMS portal (requirement: production after July 2020 and registration after January 1, 2021), the factory warranty is automatically extended to 10 years at no cost. Competitors such as SMA and Fronius typically offer a standard warranty of 5-7 years, with an additional cost for extending it to 10 years. - **Optional AFCI and SPD Class II in standard** - The built-in SPD Type II surge protection and AFCI (arc fault detection on the DC side with alarm and circuit interruption) options enhance fire safety - features that are increasingly required by building insurers and institutional investors in Poland. ### Cons - **Lack of hybrid/EPS functionality** - The SDT G3 is a purely grid-tied inverter - it does not support energy storage or EPS (Emergency Power Supply) functions. Given the increasing interest from prosumers in energy storage, adding a battery to the system later would require replacing the inverter with a hybrid model (e.g., from the GoodWe ET/EH series), which would incur additional labor and equipment costs. - **Cloud-based SEMS Monitoring** - Full diagnostics and remote monitoring rely on the SEMS Portal platform (GoodWe), which means that the device's entire lifecycle is dependent on the manufacturer's cloud infrastructure. In the event of a lack of internet access or a service outage, monitoring becomes unavailable - unlike solutions with a local server (e.g., SMA Home Manager). ## About this series The GoodWe SDT G3 series are three-phase grid-tie (**string**) inverters designed for demanding rooftop installations - from homes with higher power allocations to small commercial properties. What distinguishes them is their **quiet operation**, compact design, and housing with a **IP66 protection rating**, which facilitates installation even in more challenging environmental conditions. Two independent **MPPT** inputs allow for better energy utilization when modules are in different orientations or when parts of the roof are intermittently shaded - the inverter optimizes performance independently for each string, improving yield in real-world conditions. High efficiency (including European efficiency) means fewer losses during conversion and more stable energy production under typical Polish operating conditions. The SDT G3 supports intelligent energy management, including export limits and consumption monitoring once a compatible meter is installed. Available communication and monitoring options (including WiFi or LAN/Ethernet) feature monitoring in the SEMS app. This is the series for users who expect modern diagnostics and safety solutions, such as optional AFCI and type II SPDs. ## Questions ### What is the warranty period for the GoodWe SDT G3 inverter? GoodWe offers a 5-year warranty on the SDT G3 series inverters. This warranty is automatically extended to 10 years without additional costs if the installation is carried out by a certified GoodWe PLUS+ installer and the device is registered on the SEMS platform (for models up to 22 kW). GoodWe is a Tier-1 manufacturer, which ensures financial stability and the fulfillment of warranty obligations. ### What is the efficiency of the GoodWe SDT G3 inverter, and does this matter in the Polish market? The maximum efficiency of the G3 SDT is 98.6%, while the European standard (taking into account real operating conditions with varying solar exposure) reaches 98.2%. In Poland, where installations often operate under partial loads, the high European efficiency directly translates to a higher annual energy yield and a faster return on investment. Natural convection cooling eliminates the need for a fan, which reduces noise and the risk of breakdowns. ### Can the GoodWe SDT G3 inverter be mounted outdoors? Yes. The SDT G3 enclosure has an IP66 rating, which means it is completely protected against dust and strong water jets. The inverter can operate at temperatures from -30°C to +60°C and with humidity up to 100%, making it suitable for installation on exterior walls, in garages, or other locations exposed to weather conditions without any concerns. ### Which type of installation is the GoodWe SDT G3 series best suited for, and what is the power range? The SDT G3 is a three-phase grid-tie inverter with a power range of 4-30 kW, designed for larger residential installations (homes with dedicated three-phase power) and small commercial buildings. Two independent MPPT (Maximum Power Point Tracking) systems allow for connecting solar panel arrays in various orientations or on roofs with varying levels of shading, which is a common situation on complex pitched roofs. ### What are the key differences between the GoodWe SDT G3 and the previous generation SDT G2? The SDT G3 offers higher maximum efficiency (98.6% compared to 98.4% in the G2), a wider power range (starting from 4 kW, compared to 17 kW in the G2), and more comprehensive communication options, including WiFi, LAN, and Bluetooth as standard. The G3 also includes an optional AFCI (Arc Fault Circuit Interrupter) that detects DC arc faults, which enhances the safety of the installation. ### How does the monitoring system for the GoodWe SDT G3 inverters work, and is it a paid service? The SDT G3 integrates with GoodWe's free SEMS (Smart Energy Management System) platform. The inverter connects to the internet via WiFi or LAN, and users can monitor energy production, current power, and alerts in real-time through the SEMS mobile app. With the addition of a compatible meter, it's also possible to monitor self-consumption and activate the export limit to the grid, as required by some distribution network operators. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/inverters/208410455368a4614f6e432-9203817feed8.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 | Similar on paper | | [Growatt MOD 10KTL3-X](https://comparepv.com/inverter/growatt-mod-10ktl3-x) | 10 kW | 98.1% | 2 | 14.0 kg | Similar on paper | | [Sungrow SG10KTL-M](https://comparepv.com/inverter/sungrow-sg10ktl-m) | 10 kW | 98.1% | 2 | 20.0 kg | 5.3 kg heavier | | [Sungrow SG10RT-20](https://comparepv.com/inverter/sungrow-sg10rt-20) | 10 kW | 98.1% | 2 | 17.0 kg | 2.3 kg heavier | | [SOFAR 11KTLX-G3](https://comparepv.com/inverter/sofar-solar-sofar-11ktlx-g3) | 10 kW | 98.0% | 2 | 18.0 kg | 3.3 kg heavier | | [SOFAR 10KTLX-G3-A](https://comparepv.com/inverter/sofar-solar-sofar-10ktlx-g3-a) | 10 kW | 98.0% | 2 | 18.0 kg | 3.3 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 | 5.8 kg heavier | | [GoodWe GW10KN-DT](https://comparepv.com/inverter/goodwe-gw10kn-dt) | 10 kW | 98.0% | 2 | 24.0 kg | 9.3 kg heavier | --- Source: https://comparepv.com/inverter/goodwe-gwt10k-sdt-30-sdt-g3-series