--- title: "GoodWe GW8KN-ET (ET PLUS+ 16A Series) Hybrid Inverter: Specs & Datasheet | ComparePV" description: "GoodWe GW8KN-ET (ET PLUS+ 16A Series) 8 kW hybrid inverter. Specs: 97.5% European efficiency, 2 MPPT, 1000 V max DC input, 24.0 kg." source: "https://comparepv.com/inverter/goodwe-gw8kn-et-et-plus-16a-series" updated: 2026-01-16 --- # GoodWe GW8KN-ET (ET PLUS+ 16A Series) ## Identity - **Manufacturer:** GoodWe - **Model:** GW8KN-ET (ET PLUS+ 16A Series) - **Series:** ET PLUS+ - **Rated AC power:** 8 kW - **Type:** Hybrid - **Phases:** Three-phase - **Battery port:** yes ## 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 | 3.0 | 2.3 | Typical | 181 | | Warranty | - | 5 yrs | | | ## Specification ### AC output - **Rated AC power:** 8 kW - **Max AC power:** 8.80 kW - **Max apparent power:** 8.80 kVA - **Phases:** Three-phase - **Nominal AC voltage:** 400 V - **Max AC current:** 13.5 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:** 12.00 kW - **Max DC voltage:** 1000 V - **MPPT voltage range:** 200 to 850 V - **Start-up voltage:** 180 V - **MPPT trackers:** 2 - **Max input current per MPPT:** 16.0 A - **Max short-circuit current per MPPT:** 21.2 A ### Efficiency - **European efficiency:** 97.5 % - **Max efficiency:** 98.2 % ### Battery - **Battery port:** Yes - **Battery voltage:** 180 ~ 600 - **Max charge current:** 25.0 A - **Max discharge current:** 25.0 A - **Backup power:** 10.00 kW - **Grid-forming:** Yes ### Physical - **Dimensions:** 516 × 415 × 180 mm - **Weight:** 24.0 kg - **Enclosure:** IP66 - **Cooling:** natural - **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 (optional via WiFi+LAN module), 4G (optional) - **Protection:** DC switch, Surge protection ### Pros - **UPS switching time \< 10 ms** - The backup power system switches over in less than 10 ms, meeting the requirements of UPS class and protecting sensitive devices (NAS, routers, refrigerators) from voltage spikes when the network fails. Many competitors in the 3-phase hybrid segment (e.g., Fronius Symo GEN24) achieve similar parameters, but only in more expensive versions with a dedicated backup module. - **150% oversizing DC and 98.2% maximum efficiency.** - The ability to oversize DC up to 150% of the nominal AC power allows for more efficient use of PV systems during morning and evening hours, as well as in situations with dispersed shading, as confirmed by the official GoodWe datasheet. With a maximum efficiency of 98.2%, the series is positioned in the upper quintile of 5-10 kW, 3-phase hybrid inverters. - **BNEF Tier 1, Q2 2025, >100 GW installed** - GoodWe is listed on BloombergNEF's Tier 1 Power Inverter Manufacturers list for Q2 2025, which confirms the manufacturer's financial stability and facilitates project financing with credit. Globally, over 100 GW of GoodWe equipment has been installed, with production capacity of 35 GW/year - this minimizes the risk of lacking after-sales support. - **Peak shaving + dry contact for controlling the heat pump** - The built-in peak shaving function automatically limits power consumption from the grid during peak hours, and the dry contact output allows for the automatic activation of the heat pump or other loads when excess PV power is available - without the need for additional external controllers or relays. - **IP66 + integrated SPD Type II** - The IP66 enclosure allows for outdoor mounting without the need for additional shielding, and the integrated Class II DC surge protection device protects the DC input from atmospheric surges - eliminating the need for and cost of an external surge protection device, which typically adds an additional 200-400 zł to the estimate. ### Cons - **Warranty and third-party batteries** - GoodWe's full warranty covers only batteries listed on their official compatibility list. Connecting a battery not on the list shifts the responsibility for the system's safety and performance to the installer/integrator, which can complicate warranty negotiations with the end customer and limit the flexibility in choosing batteries. - **Power range: 5-10 kW, without scaling** - The ET PLUS+ series ends at 10 kW AC. Installations requiring higher power (e.g., large homes with heat pumps >12 kW or small commercial and industrial applications) require a separate ET 15-30 kW line, which is not a direct upgrade and requires different components and cabling. ## About this series The GoodWe ET PLUS+ series are **three-phase hybrid inverters** designed for installations where photovoltaics work together with energy storage, genuinely increasing self-consumption. In practice, they stand out with home energy management features, including **peak-shaving** (peak reduction) and UPS-class backup power, facilitating the operation of critical circuits during grid outages. Two independent MPPT channels facilitate power generation under different panel orientations and partial shading - the inverter flexibly adapts its operation to roof conditions. The high European efficiency means fewer losses in the real, variable climate and a more stable annual production. Monitoring is done via the SEMS/SEMS+ ecosystem - remote viewing, alarms, and diagnostics are available in the app, and communication can operate via WiFi or Ethernet with the WiFi/LAN module. The ET PLUS+ is compatible with GoodWe Lynx Home energy storage systems, and the **IP66 rating** along with built-in protections (including surge protection) support safe operation. Ideal for demanding residential and small commercial installations where **energy independence** and consumption control are key. ## Questions ### What is the warranty on GoodWe ET PLUS inverters? The standard warranty for the GoodWe ET PLUS+ series is 5 years. However, GoodWe offers the option to extend this warranty to 10 years through dedicated warranty programs. This is a significant advantage when choosing a hybrid inverter, as the energy storage system and inverter should function together for at least a decade to justify the investment. GoodWe is a recognized Tier 1 manufacturer, which ensures the real value of this warranty. ### Does the GoodWe ET PLUS+ provide backup power in the event of a power outage? Yes, the GoodWe ET PLUS+ features a UPS-class backup power function. This means a very quick switch to battery power in the event of a power outage, without any noticeable interruption for connected devices. Key appliances in the home, such as the refrigerator, router, or heating system, can continue to operate normally for a period depending on the capacity of the connected GoodWe Lynx Home energy storage system. ### Which energy storage systems does the GoodWe ET PLUS+ work with? The GoodWe ET PLUS+ inverter is officially compatible with GoodWe Lynx Home energy storage systems, including the Lynx Home F model, which uses lithium-ion batteries. It supports a wide range of battery voltages from 180 to 600 V, providing flexibility in system expansion. Using batteries outside the GoodWe ecosystem may result in limited integration and a lack of manufacturer warranty. ### What are the benefits of having two MPPT (Maximum Power Point Tracking) strings in the GoodWe ET PLUS+, and does this make a difference on my roof? Two independent MPPT (Maximum Power Point Tracking) systems allow you to connect panels from two different sides of the roof or with different orientations, and each system can track its power independently. If one side of the roof is shaded for several hours a day, the inverter does not reduce the output of the entire system, but only that one system. This is a real advantage on typical pitched roofs, where the eastern and western sides have different sun exposure patterns throughout the day. ### Does the GoodWe ET PLUS+ support peak shaving, and how does it work in practice? Yes, the ET PLUS+ series has a built-in peak shaving function, which automatically reduces power consumption from the grid during peak demand periods. The inverter monitors current consumption and, when it exceeds a pre-set threshold, draws power from the battery instead of the grid. This allows users who are billed based on peak power consumption to lower their bills or simply maximize the self-consumption of generated energy. ### How to monitor a GoodWe ET PLUS+ inverter system, and do I need any additional equipment? Monitoring is carried out through the SEMS or SEMS+ platform, which is available as a mobile app and a web panel. The inverter communicates via WiFi or Ethernet after connecting the WiFi/LAN module. The app provides remote monitoring of production, consumption, battery status, as well as a history of alarms and diagnostics. The communication module may already be included or available as an option; it is advisable to check this when purchasing a specific model from the ET PLUS+ series. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/inverters/70164562565d8bb2582fbd-9ae73c533c42.pdf) ## Alternatives | Inverter | Rated AC | Euro efficiency | MPPT | Weight | Difference | | --- | --- | --- | --- | --- | --- | | [SolarEdge SE8000H](https://comparepv.com/inverter/solaredge-se8000h) | 8 kW | 99.0% | | 19.6 kg | +1.5 pp efficiency, 4.4 kg lighter | | [Growatt MOD 8000TL3-XH](https://comparepv.com/inverter/growatt-mod-8000tl3-xh) | 8 kW | 98.1% | 2 | 14.0 kg | +0.6 pp efficiency, 10.0 kg lighter | | [Growatt MOD 8000TL3-HU](https://comparepv.com/inverter/growatt-mod-8000tl3-hu) | 8 kW | 98.1% | 2 | 19.0 kg | +0.6 pp efficiency, 5.0 kg lighter | | [Huawei SUN5000-8K-MAP0](https://comparepv.com/inverter/huawei-sun5000-8k-map0) | 8 kW | 98.0% | 2 | 21.0 kg | +0.5 pp efficiency, 3.0 kg lighter | | [Huawei SUN2000-8KTL-M1](https://comparepv.com/inverter/huawei-sun2000-8ktl-m1) | 8 kW | 98.0% | 2 | 17.0 kg | +0.5 pp efficiency, 7.0 kg lighter | | [Huawei SUN2000-8KTL-M1 (High current version)](https://comparepv.com/inverter/huawei-sun2000-8ktl-m1-high-current-version) | 8 kW | 98.0% | 2 | 17.0 kg | +0.5 pp efficiency, 7.0 kg lighter | | [Huawei SUN2000-8K-MAP0](https://comparepv.com/inverter/huawei-sun2000-8k-map0) | 8 kW | 98.0% | 2 | 21.0 kg | +0.5 pp efficiency, 3.0 kg lighter | | [Sungrow SH8.0RT](https://comparepv.com/inverter/sungrow-sh8-0rt) | 8 kW | 97.9% | 2 | 27.0 kg | +0.4 pp efficiency, 3.0 kg heavier | --- Source: https://comparepv.com/inverter/goodwe-gw8kn-et-et-plus-16a-series