--- title: "GoodWe GW25K-ET Hybrid Inverter: Specs & Prices | ComparePV" description: "GoodWe GW25K-ET 25 kW hybrid inverter: 6 shop offers from 8 625.46 zł. Specs: 1000 V max DC input, 54.0 kg." source: "https://comparepv.com/inverter/goodwe-gw25k-et" updated: 2026-10-11 --- # GoodWe GW25K-ET ## Identity - **Manufacturer:** GoodWe - **Model:** GW25K-ET - **Series:** ET 系列 - **Rated AC power:** 25 kW - **Type:** Hybrid - **Phases:** Three-phase - **Battery port:** yes ## Price offers Prices are the figure each shop printed, on that shop's side of VAT. | Shop | Market | Price | Per kW | Availability | Last read | | --- | --- | --- | --- | --- | --- | | [Sklep Soltech](https://comparepv.com/go/5730) | Poland | 8 625.46 zł net | 345.02 zł/kW | Not stated | Last read 11 Oct 04:09 | | [www.hlumar.sk](https://comparepv.com/go/94559) | Slovakia | 2 525 € incl. VAT | 101 €/kW | In stock | Last read 11 Oct 01:55 | | [7Sun](https://comparepv.com/go/657465) | Poland | 11 384.12 zł incl. VAT | 455.36 zł/kW | In stock | Last read 11 Oct 02:38 | | [www.solar-outlet.nl](https://comparepv.com/go/111681) | Netherlands | 2 757.95 € incl. VAT | 110.32 €/kW | In stock | Last read 11 Oct 00:16 | | [ensun.sk](https://comparepv.com/go/551339) | Slovakia | 3 037.58 € incl. VAT | 121.50 €/kW | In stock | Last read 11 Oct 00:49 | | [ddenergy.sk](https://comparepv.com/go/93921) | Slovakia | 3 321 € incl. VAT | 132.84 €/kW | In stock | Last read 11 Oct 00:11 | ## 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 | - | 98.0% | | | | MPPT trackers | - | 2 | | | | Max DC input voltage | 1000 V | 1000 V | Typical | 101 | | Weight per kW | 2.2 | 1.6 | Typical | 161 | | Warranty | - | 5 yrs | | | ## Specification ### AC output - **Rated AC power:** 25 kW - **Max AC power:** 27.50 kW - **Max apparent power:** 27.50 kVA - **Phases:** Three-phase - **Nominal AC voltage:** 400 V - **Max AC current:** 41.7 A - **Grid frequency:** 50 Hz - **Power factor:** -1 ~ 1 (0.8 leading ... 0.8 lagging adjustable) - **Harmonic distortion (THD):** 3.0 % ### PV input - **Max DC input power:** 37.50 kW - **Max DC voltage:** 1000 V - **MPPT voltage range:** 200 to 850 V - **Start-up voltage:** 200 V - **Max input current per MPPT:** 30.0 A - **Max short-circuit current per MPPT:** 38.0 A ### Efficiency - **Max efficiency:** 98.0 % ### Battery - **Battery port:** Yes - **Battery voltage:** 200-800 - **Max charge current:** 50.0 A - **Max discharge current:** 50.0 A - **Grid-forming:** Yes ### Physical - **Dimensions:** 660 × 520 × 220 mm - **Weight:** 54.0 kg - **Enclosure:** IP66 - **Cooling:** forced-air - **Operating temperature:** -35 to 60 °C - **Max humidity:** 95 % - **Max altitude:** 4000 m ### Connectivity and protection - **Interfaces:** Wi-Fi, Ethernet - **Protocols:** RS485, CAN, WiFi, LAN, 4G (optional) - **Protection:** AFCI, DC switch, Surge protection ### Pros - **Efficiency of up to 98.2% (premium class)** - The ET PLUS models achieve a maximum efficiency of 98.2%, while the ET 15-30 kW series achieves 98.0%. These values are competitive with leading three-phase inverters (such as SMA Sunny Tripower and Fronius Symo), resulting in lower conversion losses and a higher annual energy yield. - **UPS-class EPS: Switching time \<10 ms** - The switching time to the backup power source is less than 10 ms (for models 5-30 kW) and less than 4 ms for models 75-100 kW, which meets the requirements for uninterruptible power supply (UPS) systems. For comparison, standard off-grid solutions have switching times of 20-100 ms, which excludes certain sensitive devices that are vulnerable to power outages. - **DC oversizing of 150-200% and multi-channel MPPT** - The ET series supports DC string oversizing up to 150% (ET 15-30 kW), 160% (ET G2), and 200% (ET LV), with 2-3 independent MPPT trackers available depending on the variant (up to 20A per string in ET LV). This allows for efficient operation on installations with different roof orientations and partial shading, without the need for optimizers. - **AFCI 3.0 with AI - arc detection up to 200 meters** - GoodWe implemented the AFCI 3.0 function in the ET series, based on deep learning and compliant with IEC 63027. The system detects an electrical arc up to 200 meters away and initiates a shutdown within 500 ms - this exceeds the requirements of the standard and enhances fire safety compared to devices without certified AFCI. - **SEMS platform with multi-level access** - The SEMS monitoring system allows for simultaneous access for the owner, installer, and EPC with different permissions. It provides live and historical views, alarm management, and reporting - which reduces the time required for remote diagnostics and lowers the ongoing maintenance costs throughout the installation's lifespan. ### Cons - **EPS: No support for other power generation sources** - The ET series backup power supply does not support simultaneous operation with other inverters (e.g., an AC generator or another PV inverter) - it lacks the Volt/Freq control functionality that would force the external power source to disconnect. This limits its use in hybrid multi-source systems without additional automation. - **Anomalies in self-consumption** - In some GW10K-ET units, self-consumption was recorded at 100-600 W, instead of the nominal 25-40 W for the hybrid inverter. This issue can be resolved with a firmware update (v1.33+), but requires active intervention from the installer and indicates inadequate quality control in certain production batches. ## About this series GoodWe ET (ET Series) are three-phase hybrid inverters **designed** for PV installations with energy storage - from extensive homes to commercial and industrial sites. Their key feature is the focus on operation in various scenarios: self-consumption, backup power supply support, and intelligent energy flow management, especially when working with additional devices (e.g., switching to UPS backup power). A key advantage is the **multi-string MPPT** - depending on the model variant, you may find several, and in the most powerful units, even multiple trackers. This provides real benefits with panels of different orientations, uneven soiling, and partial shading, as each string can operate closer to its own optimum. High **European efficiency** means fewer losses under typical climatic conditions, thus ensuring a more stable energy production throughout the year. Monitoring via **SEMS** and communication (WiFi or Ethernet - depending on configuration) facilitates diagnostics, reporting, and service. The ET series is compatible with selected energy storage systems (including GoodWe Lynx systems and popular HV batteries), and the standard requirements include grid certifications and the possibility of extending the warranty. ## Questions ### How many MPPT trackers does the GoodWe ET inverter have, and why is this important when using roofs with multiple connections? The GoodWe ET series offers between 2 and even 4 independent MPPT trackers, depending on the model (e.g., the ET LV 5-20 kW has 2-4 MPPTs, while 15-30 kW models have 3 MPPTs). Each tracker operates independently, so panels facing different orientations (south, east, west) or partially shaded panels do not reduce the overall performance of the installation. This is a real advantage for roofs with multiple slopes or those with chimneys. ### Which energy storage systems are compatible with the GoodWe ET inverter? The ET series is compatible with a wide range of high-voltage batteries (HV): GoodWe Lynx Home F, Lynx Home F PLUS+, Lynx C, as well as external BYD Battery-Box Premium HVS/HVM batteries and selected Pylontech models (Force L, US5000). The complete list of compatibility depends on the inverter's firmware version - GoodWe regularly updates it. ### Does the GoodWe ET inverter provide backup power during a blackout, and how quickly does it switch to backup mode? Yes, the ET series includes an integrated EPS (Emergency Power Supply) with a switching time of less than 10 ms, which meets requirements similar to those of a UPS. This means that connected devices will practically not notice a power outage. The power available in backup mode is equal to the nominal power of the inverter, and for 60 seconds, it is possible to briefly overload (e.g., up to 18 kVA for the 10 kW model). ### What is the warranty on the GoodWe ET inverters, and is it possible to extend it? The standard warranty for the GoodWe ET series is 5 years, but GoodWe offers the option to extend the warranty to 10, 15, or even 20 years. As part of promotional offers in Poland, selected models up to 10 kW were offered with a free extension to 10 years. It is advisable to inquire with the distributor about the current warranty offer when making a purchase. ### What are the potential applications for the GoodWe ET series - is it only suitable for residential installations? No - the ET series consists of hybrid three-phase inverters, ranging from those suitable for large single-family homes (from 5 kW) to commercial and industrial applications (models from 15-30 kW and above). It supports the parallel connection of multiple units and cooperation with the GoodWe SEMS system. This makes it suitable for both residential prosumer applications and business installations with energy storage and peak power management. ### How to monitor the performance of the GoodWe ET inverter, and do I need any additional equipment? Monitoring is carried out through the SEMS (Smart Energy Management System) platform, which is available as a mobile app and a web panel. Communication with the inverter is achieved via WiFi or Ethernet - depending on the configuration and model version. To monitor energy flow from the grid, an EzMeter (GM3000) energy meter is required, which is often sold together with the inverter in various sets. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/inverters/et15-30k-cb216182d0c0.pdf) ## Alternatives | Inverter | Rated AC | Euro efficiency | MPPT | Weight | Difference | | --- | --- | --- | --- | --- | --- | | [Huawei SUN5000-25K-MB0](https://comparepv.com/inverter/huawei-sun5000-25k-mb0) | 25 kW | 98.2% | 2 | 21.0 kg | 33.0 kg lighter | | [Huawei SUN2000-25K-MB0](https://comparepv.com/inverter/huawei-sun2000-25k-mb0) | 25 kW | 98.2% | 2 | 21.0 kg | 33.0 kg lighter | | [Sungrow SH25T](https://comparepv.com/inverter/sungrow-sh25t) | 25 kW | 97.8% | 3 | 40.0 kg | 14.0 kg lighter | | [Fronius Verto 25.0 Plus](https://comparepv.com/inverter/fronius-international-fronius-verto-25-0-plus) | 25 kW | 97.7% | 3 | 43.0 kg | 11.0 kg lighter | | [Growatt WIT 25K-XHU](https://comparepv.com/inverter/growatt-wit-25k-xhu) | 25 kW | 97.2% | 2 | 45.0 kg | 9.0 kg lighter | | [Growatt WIT 25K-HU](https://comparepv.com/inverter/growatt-wit-25k-hu) | 25 kW | 97.0% | 2 | 55.0 kg | 1.0 kg heavier | | [Deye SUN-25K-SG01HP3-EU-AM2](https://comparepv.com/inverter/deye-sun-25k-sg01hp3-eu-am2) | 25 kW | 97.0% | 2 | 30.5 kg | 23.5 kg lighter | | [Growatt MID 25KTL3-XH](https://comparepv.com/inverter/growatt-mid-25ktl3-xh) | 25 kW | | | 31.0 kg | 23.0 kg lighter | --- Source: https://comparepv.com/inverter/goodwe-gw25k-et