--- title: "GoodWe GW3600M-ES-20 (ES G2 series) Hybrid Inverter: Specs & Datasheet | ComparePV" description: "GoodWe GW3600M-ES-20 (ES G2 series) 3.68 kW hybrid inverter. Specs: 2 MPPT, 600 V max DC input, 20.0 kg." source: "https://comparepv.com/inverter/goodwe-gw3600m-es-20-es-g2-series" updated: 2026-01-16 --- # GoodWe GW3600M-ES-20 (ES G2 series) ## Identity - **Manufacturer:** GoodWe - **Model:** GW3600M-ES-20 (ES G2 series) - **Series:** GoodWe ES G2 - **Rated AC power:** 3.68 kW - **Type:** Hybrid - **Phases:** Single-phase - **Battery port:** yes ## How it compares Compared against 362 inverters from 3 to 6 kW. Ranks are within that class. | Measure | This inverter | Class median | Standing | Rank in class | | --- | --- | --- | --- | --- | | European efficiency | - | 97.2% | | | | MPPT trackers | 2 | 2 | Typical | 13 | | Max DC input voltage | 600 V | 600 V | Typical | 94 | | Weight per kW | 5.4 | 3.3 | Weak - bottom 15% | 299 | | Warranty | - | 5 yrs | | | ## Specification ### AC output - **Rated AC power:** 3.68 kW - **Max apparent power:** 3.68 kVA - **Phases:** Single-phase - **Nominal AC voltage:** 230 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 input power:** 5.40 kW - **Max DC voltage:** 600 V - **MPPT voltage range:** 60 to 550 V - **Start-up voltage:** 58 V - **MPPT trackers:** 2 - **Max input current per MPPT:** 16.0 A - **Max short-circuit current per MPPT:** 23.0 A ### Efficiency - **Max efficiency:** 97.6 % ### Battery - **Battery port:** Yes - **Battery voltage:** 40–60 V - **Grid-forming:** Yes ### Physical - **Weight:** 20.0 kg - **Enclosure:** IP65 - **Cooling:** natural - **Operating temperature:** -25 to 60 °C - **Max humidity:** 95 % - **Max altitude:** 3000 m ### Connectivity and protection - **Interfaces:** Wi-Fi, Ethernet, Display - **Protocols:** CAN (BMS), RS485 (meter), WiFi, LAN, 4G (optional) - **Protection:** AFCI, DC switch, Surge protection ### Pros - **Switching to backup power in less than 10 ms (UPS-rated)** - The official GoodWe datasheet confirms a transition time to backup mode of less than 10 ms, which meets the definition of an online UPS. In practice, this means that computers, routers, and other sensitive devices will not restart when the network fails - a significant advantage over standard hybrid inverters that switch to battery power in 20-100 ms. - **European efficiency: 96.7%** - The measured European efficiency of 96.7% (compared to a maximum of 97.6%) places the ES G2 above the typical threshold of 96% for hybrid inverters in the 3-6 kW class. This translates to a realistically higher annual yield under variable solar irradiation conditions, which are typical for Poland. - **Simultaneous operation up to 30 kW** - The series supports parallel connections up to a total power of 30 kW - a feature rarely found in single-phase inverters of this price range. This allows for the creation of backup power without the need to replace the device with a three-phase model. - **Wide compatibility with low-voltage batteries** - ES G2 works with a wide range of low-voltage battery systems: GoodWe Lynx Home U, BYD LVS, DYNESS, Pylontech US, and others (the compatibility list includes over 15 models from 6 manufacturers, as detailed in the Battery Compatibility Overview 2024 document). This gives the installer the freedom to choose a battery system without being locked into a single supplier. - **IP65 + passive fanless cooling strips** - The IP65 enclosure and the complete absence of a fan eliminate noise (0 dB mechanical) and address one of the main failure points in inverters. The manufacturer positions this as a "plug and play" solution with simplified installation, which reduces the typical installation time in a standard single-family home. ### Cons - **Exclusively low-voltage (LV) batteries** - The ES G2 architecture only supports low-voltage (LV) batteries (DC voltage range up to approximately 60 V), which excludes compatibility with the rapidly growing segment of high-voltage (HV) batteries (e.g., BYD HVS, Pylontech Force H2), which offer higher round-trip efficiency (~95% vs ~90-92% for LV). Competitors in this price range, such as Huawei SUN2000-6KTL-M2 or SolarEdge Home Hub, offer HV options. - **Single-phase, up to 6 kW - suitable for larger homes** - A maximum AC power of 6 kW in a single-phase configuration may be insufficient for homes that also use a heat pump (2-4 kW) and an EV charger (7.4 kW). Three-phase alternatives, such as the GoodWe ET G2 or the SMA Sunny Tripower Smart Energy 10, can handle 10 kW+ without requiring any additional bypasses. ## About this series The GoodWe ES G2 series are single-phase hybrid inverters for home installations, designed for maximized self-consumption and intelligent energy flow management between PV, the grid, loads, and storage. In practice, they stand out due to their **backup mode with UPS class switching** - the backup power engages almost instantly, ensuring stable operation of critical home devices even during grid outages. Additionally, the option for **parallel operation** facilitates building a more reliable backup power supply in demanding scenarios. Two MPPTs allow flexible handling of strings with different orientations or tilts and minimize losses from partial shading, as each string operates independently. The high European efficiency means better yields under the variable weather conditions in Poland. Monitoring and configuration are convenient thanks to the SEMS ecosystem and grid-tailored communication, while compatibility with a wide range of **low-voltage batteries** simplifies energy storage expansion. The series is also designed for quick plug-and-play installation and operates quietly without fans. ## Questions ### How quickly does the GoodWe ES G2 inverter switch to backup power in the event of a power outage? The GoodWe ES G2 inverter switches to backup mode in less than 10 ms, which is equivalent to UPS (Uninterruptible Power Supply) performance. In practice, this means that critical devices, such as refrigerators, routers, or lighting, will not notice a power outage. This is a key advantage of this series compared to standard network inverters, which completely shut down the entire system during a power outage. ### What warranty do I receive when purchasing a GoodWe ES G2 inverter? The standard warranty for GoodWe ES G2 inverters is 5 years. This can be extended free of charge to 10 years if the installation is carried out by a certified GoodWe PLUS+ installer and the device is registered online in the SEMS system. The 10-year warranty covers manufacturing defects and is directly honored by the manufacturer. ### Which batteries are compatible with the GoodWe ES G2, and can I use a different battery than the GoodWe Lynx? The ES G2 series is designed for low-voltage (LV) batteries (typically 48 V). Officially certified partners include, among others, GoodWe Lynx Home U, but the manufacturer publishes and regularly updates a list of approved batteries from other brands. Before purchasing a battery from a non-GoodWe ecosystem, it is advisable to check the current compatibility document to avoid losing warranty rights. ### Can the GoodWe ES G2 inverter be used when solar panels are mounted on two roof sections with different slopes or orientations? Yes, the ES G2 series features two independent MPPT (Maximum Power Point Tracking) controllers. Each controller operates independently, so you can connect south-facing panels to one MPPT and east- or west-facing panels to the other, without any performance losses. This is a much better setup than connecting all the panels into a single string. ### Can the GoodWe ES G2 inverter operate in parallel with another inverter to increase the emergency power output? Yes, the ES G2 series supports parallel operation, which allows you to connect multiple units and achieve a total backup power of up to 30 kW. This is useful in homes with high power backup requirements, or where the system is planned to be expanded in the future without replacing the inverter. ### Does the GoodWe ES G2 inverter operate without a fan, and what is its noise level? Yes, the ES G2 series operates entirely passively, without an internal fan. Cooling is achieved through the enclosure, making the inverter virtually silent during normal operation. This is a significant advantage when installing in a garage, boiler room, or other location near residential areas. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/inverters/es-g2-db04241df35d.pdf) ## Alternatives | Inverter | Rated AC | Euro efficiency | MPPT | Weight | Difference | | --- | --- | --- | --- | --- | --- | | [SolarEdge SE3680H](https://comparepv.com/inverter/solaredge-se3680h) | 3.68 kW | 99.0% | | 12.0 kg | 8.0 kg lighter | | [SolarEdge StorEdge AC Coupled Single Phase Inverter (HD‑Wave) – SE3680H / H3680SE](https://comparepv.com/inverter/solaredge-storedge-ac-coupled-single-phase-inverter-hd-wave-se3680h-h3680se) | 3.68 kW | 98.8% | | 7.8 kg | 12.2 kg lighter | | [Huawei SUN2000L-3.68KTL](https://comparepv.com/inverter/huawei-sun2000l-3-68ktl) | 3.68 kW | 97.8% | 2 | 10.6 kg | 9.4 kg lighter | | [Huawei SUN2000-3.68KTL-L1](https://comparepv.com/inverter/huawei-sun2000-3-68ktl-l1) | 3.68 kW | 97.3% | 2 | 12.0 kg | 8.0 kg lighter | | [Sungrow SH3.6RS](https://comparepv.com/inverter/sungrow-sh3-6rs) | 3.68 kW | 97.1% | 2 | 18.5 kg | 1.5 kg lighter | | [Growatt SPH3600TL BL-UP](https://comparepv.com/inverter/growatt-sph3600tl-bl-up) | 3.68 kW | 97.0% | 2 | 27.0 kg | 7.0 kg heavier | | [GoodWe GW3648-EM](https://comparepv.com/inverter/goodwe-gw3648-em) | 3.68 kW | 97.0% | | 17.0 kg | 3.0 kg lighter | | [Fronius Primo GEN24 3.6](https://comparepv.com/inverter/fronius-international-fronius-primo-gen24-3-6) | 3.68 kW | 97.0% | 2 | 15.4 kg | 4.6 kg lighter | --- Source: https://comparepv.com/inverter/goodwe-gw3600m-es-20-es-g2-series