--- title: "GoodWe GW30K-MT Grid-tie Inverter: Specs & Prices | ComparePV" description: "GoodWe GW30K-MT 30 kW grid-tie inverter: 2 shop offers from 1 915.95 €. Specs: 98.5% European efficiency, 1100 V max DC input, 40.0 kg." source: "https://comparepv.com/inverter/goodwe-gw30k-mt" updated: 2026-10-10 --- # GoodWe GW30K-MT ## Identity - **Manufacturer:** GoodWe - **Model:** GW30K-MT - **Series:** SMT - **Rated AC power:** 30 kW - **Type:** Grid-tie - **Phases:** Three-phase ## Price offers Prices are the figure each shop printed, on that shop's side of VAT. | Shop | Market | Price | Per kW | Availability | Last read | | --- | --- | --- | --- | --- | --- | | [www.solar-outlet.nl](https://comparepv.com/go/111752) | Netherlands | 1 915.95 € incl. VAT | 63.86 €/kW | In stock | Last read 10 Oct 00:18 | | [Sklep Soltech](https://comparepv.com/go/6101) | Poland | 8 583.22 zł net | 286.11 zł/kW | Not stated | Last read 10 Oct 04:27 | ## How it compares Compared against 227 inverters from 12 to 30 kW. Ranks are within that class. | Measure | This inverter | Class median | Standing | Rank in class | | --- | --- | --- | --- | --- | | European efficiency | 98.5% | 98.0% | Strong - top 6% | 8 | | MPPT trackers | - | 2 | | | | Max DC input voltage | 1100 V | 1000 V | Strong - top 21% | 1 | | Weight per kW | 1.3 | 1.6 | Typical | 77 | | Warranty | - | 5 yrs | | | ## Specification ### AC output - **Rated AC power:** 30 kW - **Max AC power:** 33.00 kW - **Max apparent power:** 33.00 kVA - **Phases:** Three-phase - **Nominal AC voltage:** 400 V - **Max AC current:** 48.0 A - **Grid frequency:** 50 Hz - **Power factor:** ~1 (adjustable from 0.8 leading to 0.8 lagging) - **Harmonic distortion (THD):** 3.0 % ### PV input - **Max DC voltage:** 1100 V - **MPPT voltage range:** 200 to 950 V - **Start-up voltage:** 180 V - **Max input current per MPPT:** 30.0 A - **Max short-circuit current per MPPT:** 37.5 A ### Efficiency - **European efficiency:** 98.5 % - **Max efficiency:** 98.8 % ### Physical - **Dimensions:** 590 × 480 × 200 mm - **Weight:** 40.0 kg - **Enclosure:** IP65 - **Cooling:** forced-air - **Operating temperature:** -30 to 60 °C - **Max humidity:** 100 % - **Max altitude:** 3000 m ### Connectivity and protection - **Interfaces:** Wi-Fi, Display - **Protocols:** RS485, WiFi (optional), 4G (optional), Modbus-RTU (SunSpec compliant), WLAN + APP - **Protection:** DC switch, Surge protection ### Pros - **Fuse-free design** - The removal of string fuses on the DC side (replaced with solid-state capacitors) reduces the number of components susceptible to failure. In practice, this means fewer scheduled maintenance checks and shorter downtime during servicing - a significant advantage in commercial installations, where every hour of downtime results in financial losses. - **Support for up to 6 independent MPPT (Maximum Power Point Tracking) controllers** - Models with power outputs of 50-60 kW offer up to 6 MPPTs (models with power outputs of 25-36 kW offer 3 MPPTs), allowing for the independent operation of strings with different orientations, tilt angles, or levels of shading. Each tracker operates within a DC voltage range of 200-1000 V, minimizing losses due to mismatches in strings on complex roof layouts. - **Maximum efficiency: 98.8% + DC oversizing of 130%** - The declared maximum efficiency of 98.8% places the series among the leading commercial inverters. The ability to oversize the DC side up to 130% (and the AC side up to 110%) allows for greater utilization of morning and evening production hours with a relatively smaller investment in the inverter. - **Optional AFCI function** - The built-in arc fault circuit interrupter (AFCI) is an optional factory-installed feature that meets the requirements of the NEC 2020 standard and reduces the risk of fire caused by damaged DC cables - which is particularly important in commercial building roof installations, where damage and insurance costs are high. - **DC input voltage up to 1100 V** - The upper limit of 1100 V DC allows for the creation of longer strings and full compatibility with large-format modules on wafers of 182 mm (M10) and 210 mm (G12), which typically generate more than 600 Wp of power per module. The initial voltage of 180 V ensures earlier operation under low illumination conditions. ### Cons - **The warranty requires registration in SEMS.** - The standard 10-year warranty (with an option to extend it to 15 or 20 years) only becomes active after the device is registered on the SEMS monitoring platform. If the installer or investor misses this step, the effective protection period is actually shorter - in contrast to European brands (e.g., SMA, Fronius), where the warranty is unconditional from the date of sale. ## About this series The GoodWe SMT series are three-phase grid-tie inverters designed for commercial and industrial installations, where a flexible design, high operational availability, and rapid service are essential. What sets them apart is their **fuse-free construction**, which simplifies maintenance and minimizes downtime, along with comprehensive surge protection on both the DC and AC sides-critical for rooftop and ground-mounted systems. A key feature of the SMT series is **multiple MPPT channels (up to six)**-a significant advantage for panels with different orientations, varied strings, and partial shading, as each tracker can more precisely optimize the operating point and reduce energy losses due to mismatching. High **European efficiency** ensures better energy yield under typical operating conditions in Poland, beyond just laboratory settings. Additionally, the **monitoring and communication features** support remote data viewing and integration with management systems (e.g., network solutions and protocols for automation). This is the series for companies, farms, and larger facilities seeking stable energy production and precise control of their installations. ## Questions ### How many MPPT trackers does the GoodWe SMT inverter feature, and is that sufficient for a roof with multiple orientations? Depending on the model, the GoodWe SMT series offers between 3 and 6 independent MPPT trackers. The 50-60 kW models support up to 6 MPPTs, while the SMT G2 variant (35-80 kW) operates with either 4 or 6 MPPTs. This configuration allows strings from different roof sections, azimuths, and tilt angles to be connected independently, minimizing mismatch losses. For roofs with complex geometry or partial shading, this represents a tangible advantage over inverters with only 1-2 MPPT inputs. ### What is the warranty period for GoodWe SMT inverters, and can it be extended? The standard warranty for GoodWe SMT inverters is 5 years. The manufacturer offers an extension to 10 years through a paid service package. GoodWe holds Tier 1 manufacturer status, which reflects the company's financial stability and its ability to honor warranty obligations over the long term. For commercial installations, it is advisable to factor the cost of an extended warranty into the project budget from the design stage. ### What does the fuse-free design of the GoodWe SMT inverter mean, and what are its advantages? A fuse-free design means the inverter contains no DC-side string fuses internally. Instead, electronic protection circuits are used. In practice, this eliminates the need to replace blown fuses during maintenance calls, reduces system downtime, and simplifies servicing procedures. This is particularly significant in large commercial installations, where even a single hour of unplanned downtime translates into measurable energy and revenue losses. ### What power range does the GoodWe SMT series cover, and what types of installations is it designed for? The GoodWe SMT series encompasses three-phase models ranging from 25 to 60 kW in the base version, and from 35 to 80 kW in the SMT G2 variant. These inverters are designed for commercial and industrial applications, including manufacturing facilities, warehouses, office buildings, utility-scale PV plants, and larger public-sector installations. The maximum DC input voltage is 1,100 V, while the start-up voltage is as low as 180 V, enabling the inverter to begin energy production earlier in the morning. ### Does the GoodWe SMT inverter include built-in monitoring, and which communication protocols does it support? Yes, GoodWe SMT inverters are equipped with a built-in Wi-Fi module, enabling data visualization through the dedicated app and the SEMS Portal platform. RS485 (Modbus) communication is also available, allowing integration with BMS and SCADA systems in industrial facilities. For installations requiring advanced energy management, the inverter can be expanded with additional communication modules compatible with building automation protocols. ### Do GoodWe SMT inverters include surge protection, and are they suitable for installations in areas prone to lightning activity? Yes, the GoodWe SMT series offers optional Type II surge protective devices (SPDs) on both the DC and AC sides. This is an important feature for rooftop and ground-mounted installations in regions with elevated storm and lightning activity. The built-in protection limits the risk of damage to the inverter and PV modules caused by lightning-induced overvoltages, contributing to higher system reliability and lower service costs over the entire installation lifecycle. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/inverters/108757837464dcc2a5d14ad-1aae8e26d68a.pdf) ## Alternatives | Inverter | Rated AC | Euro efficiency | MPPT | Weight | Difference | | --- | --- | --- | --- | --- | --- | | [Growatt MID 30KTL3-X2 (Pro.E)](https://comparepv.com/inverter/growatt-mid-30ktl3-x2-pro-e) | 30 kW | 98.6% | 3 | 24.0 kg | 16.0 kg lighter | | [Growatt MID 30KTL3-X](https://comparepv.com/inverter/growatt-mid-30ktl3-x) | 30 kW | 98.5% | | 29.5 kg | 10.5 kg lighter | | [Growatt MID 30KTL3-X2-1](https://comparepv.com/inverter/growatt-mid-30ktl3-x2-1) | 30 kW | 98.5% | | 31.0 kg | 9.0 kg lighter | | [Huawei SUN2000-33KTL-A](https://comparepv.com/inverter/huawei-sun2000-33ktl-a) | 30 kW | 98.4% | 4 | 62.0 kg | 22.0 kg heavier | | [Huawei SUN2000-30KTL-M3](https://comparepv.com/inverter/huawei-sun2000-30ktl-m3) | 30 kW | 98.4% | 4 | 43.0 kg | 3.0 kg heavier | | [Sungrow SG30T-P2-CN](https://comparepv.com/inverter/sungrow-sg30t-p2-cn) | 30 kW | 98.3% | 3 | 25.0 kg | 15.0 kg lighter | | [Sungrow SG30CX-P2](https://comparepv.com/inverter/sungrow-sg30cx-p2) | 30 kW | 98.3% | 3 | 38.0 kg | 2.0 kg lighter | | [SOFAR 30KTLX-G3](https://comparepv.com/inverter/sofar-solar-sofar-30ktlx-g3) | 30 kW | 98.2% | | 36.0 kg | 4.0 kg lighter | --- Source: https://comparepv.com/inverter/goodwe-gw30k-mt