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.
Ranking
Specifications
Pros and cons
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.
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.
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.
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.
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.
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.
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.
Alternatives
About the ET PLUS+ series
These answers cover the whole series. Where a figure differs, the specification above is this model's own.