6.5 kW GoodWe ET PLUS+ GW6.5K-ET Battery-Ready Three-Phase Hybrid Solar Inverter

The GoodWe ET PLUS+ GW6.5K-ET Battery-Ready three-phase hybrid solar inverter is designed for residential photovoltaic installations and small professional projects that aim to maximize self-consumption, prepare for high-voltage battery integration, and provide advanced energy management.

With a rated output power of 6.5 kW, 2 MPPT trackers, and compatibility with high-voltage lithium batteries, this inverter offers a flexible solution for three-phase solar installations. The Battery-Ready function allows the system to be prepared for energy storage, making it easier to activate batteries in the future according to the project configuration.

Main advantages

• Three-phase rated output power of 6.5 kW.
• 2 MPPTs to optimize production on roofs with different orientations.
• Compatible with high-voltage lithium batteries.
• Battery voltage range from 180 to 600 V.
• Battery-Ready function to prepare the installation for energy storage.
• 100% unbalanced output, useful for adapting energy to real per-phase consumption.
• UPS-type switching in less than 10 ms for critical loads, depending on system configuration.
• IP66 protection for safe installation in demanding environments.
• Natural convection cooling, fanless, for quiet operation.
• Monitoring via WiFi and app.

Recommended applications

This inverter is a suitable solution for homes with three-phase supply, self-consumption installations with battery planning, and projects where intelligent solar energy management is required. Its hybrid architecture allows photovoltaic production, direct consumption, energy storage, and load backup to be combined, always depending on the final system design.

The ability to work with 100% unbalanced output provides greater flexibility in real installations, where consumption is not always evenly distributed across phases. This helps improve the use of generated energy and reduce dependence on the electrical grid.

Technical data

• Brand: GoodWe.
• Series: ET PLUS+.
• Reference: GW6.5K-ET.
• Inverter type: three-phase hybrid.
• Rated output power: 6500 W.
• Rated apparent power to grid: 6500 VA.
• Maximum apparent power to grid: 7150 VA.
• Rated apparent power in Back-up output: 6500 VA.
• Maximum off-grid apparent power: 6500 VA, with a peak of 13000 VA for 60 seconds.
• Rated output voltage: 400 / 380 V, 3L / N / PE.
• Rated grid frequency: 50 / 60 Hz.
• Maximum grid output current: 10.8 A.
• Power factor: approximately 1, adjustable from 0.8 leading to 0.8 lagging.
• Maximum total harmonic distortion: less than 3%.

PV input

• Maximum PV input power: 9700 W.
• Maximum input voltage: 1000 V.
• MPPT operating voltage range: 200 to 850 V.
• Start-up voltage: 180 V.
• Nominal input voltage: 620 V.
• Number of MPPTs: 2.
• Number of strings per MPPT: 1.
• Maximum input current per MPPT: 12.5 A.
• Maximum short-circuit current per MPPT: 15.2 A.

Battery input

• Compatible battery type: lithium-ion.
• Nominal battery voltage: 500 V.
• Battery voltage range: 180 to 600 V.
• Battery start-up voltage: 180 V.
• Number of battery inputs: 1.
• Maximum continuous charge current: 25 A.
• Maximum continuous discharge current: 25 A.
• Maximum charge power: 8450 W.
• Maximum discharge power: 8450 W.
• Communication with BMS: RS485 and CAN.

Efficiency and protections

• Maximum efficiency: 98.0%.
• European efficiency: 97.2%.
• Maximum battery-to-AC efficiency: 97.5%.
• Integrated PV reverse polarity protection.
• Integrated PV insulation resistance detection.
• Integrated residual current monitoring.
• Integrated anti-islanding protection.
• Integrated AC overcurrent protection.
• Integrated AC short-circuit protection.
• Integrated AC overvoltage protection.
• Integrated DC switch.
• Type II DC surge protection.
• Type III AC surge protection.
• Integrated remote shutdown.

Installation and communication

• Protection rating: IP66.
• Operating temperature range: -35 ºC to +60 ºC.
• Permitted relative humidity: 0 to 95%.
• Maximum operating altitude: 4000 m.
• Cooling: natural convection.
• User interface: LED and app.
• Communication with meter: RS485.
• Communication with portal: WiFi.
• Topology: non-isolated.
• Night consumption: less than 15 W.
• Mounting: wall-mounted.

Dimensions and weight

• Width: 415 mm.
• Height: 516 mm.
• Depth: 180 mm.
• Weight: 24 kg.

A solution ready to expand self-consumption

The GoodWe ET PLUS+ GW6.5K-ET Battery-Ready combines three-phase solar production, intelligent load management, and energy storage readiness in a single compact unit. It is a particularly attractive option for installations seeking long-term profitability, greater energy independence, and the flexibility to add a battery in the future.