Active Cooling GoodWe ET G2 (ET-20) 24V DC With Thermostat

Active Cooling Kit for GoodWe ET G2 (ET-20) Inverters

An effective active cooling solution designed specifically for GoodWe ET G2 (ET-20) hybrid solar inverters from 6 to 15 kW. The cooling kit improves airflow around the inverter's cooling fins and helps reduce operating temperatures under load by approximately 15–30°C, depending on installation and operating conditions.

The system features three high-quality Sunon 80 mm fans, an automatic thermostat and a 24V DC power supply. Installation is straightforward and does not require modifications to the inverter.

Cooling Performance and Real-World Measurements

Interested in the actual cooling performance of the GoodWe ET G2? See a real-world comparison of inverter temperatures with and without active cooling.

View GoodWe ET G2 Cooling Test and Temperature Graphs →

You can also explore additional solar inverter cooling measurements and customer experiences .

Compatible GoodWe ET G2 (ET-20) Inverters

This cooling kit is designed for the following GoodWe ET G2 (ET-20) inverter models:

• GoodWe GW6000-ET-20 (6 kW)
• GoodWe GW8000-ET-20 (8 kW)
• GoodWe GW10K-ET-20 (10 kW)
• GoodWe GW12K-ET-20 (12 kW)
• GoodWe GW15K-ET-20 (15 kW)

View GoodWe ET G2 Inverter Datasheet (PDF)

Important: This cooling kit is intended for the ET G2 (ET-20) series. If you have an older GoodWe ET or ET Plus+ inverter, please check our GoodWe ET / ET Plus+ cooling kit .

Package Contents and Power Supply

The package includes a 24V DC / 1.2A power supply with a 2-metre power cable.

Optional extension cables in lengths of 1.5 m and 4 m are available separately if additional cable length is required.

Technical Specifications

• Operating voltage: 24V DC
• Power connector: 5.5 × 2.1 mm
• Minimum power supply current: 0.8 A
• Fans: 3 × Sunon 80 mm
• Fan technology: Vapo (MagLev)
• Rated fan lifespan: 70,000 hours
• Noise level: 33 dBA
• Total airflow: 123 m³/h
• Standby power consumption: 0.5 W
• Operating power consumption: 6 W
• Construction: 3D-printed mounting frame
• Control: Automatic thermostat

How Does Active Solar Inverter Cooling Work?

The cooling system draws air in from below the inverter and promotes airflow around its cooling fins, helping dissipate heat generated during operation.

Under load, active cooling can reduce inverter operating temperatures by approximately 15–30°C, depending on the installation environment and operating conditions.

Lower temperatures may help limit thermal power derating during hot weather and reduce thermal stress on the inverter's electronic components.

Automatic Thermostat Control

The integrated thermostat automatically switches the fans on and off according to the temperature measured on the inverter's cooling fins.

The thermostat is preset to the following temperatures:

• Cooling switches on: 40°C
• Cooling switches off: 35°C

Temperature is measured by a sensor positioned on one of the inverter's cooling fins. The fans operate automatically without the need for manual switching.

The switching temperatures can be adjusted. Instructions are included in the supplied user manual.

Easy Installation Without Modifying the Inverter

Watch the GoodWe ET G2 Cooling Installation Video →

Slide the cooling unit underneath the inverter and secure it between the inverter and the wall using the adjustable support pins.

Route the thermostat temperature sensor behind the inverter and position it on the middle cooling fin.

Connect the included 24V DC power supply. The thermostat will then control the fans automatically according to the measured temperature.

To remove the cooling unit, follow the installation procedure in reverse order.

Technical Documentation and Downloads

• GoodWe ET G2 (ET-20) Inverter Datasheet (PDF)
• Cooling Kit User Manual – GWETG201-T (PDF)
• Conformity Certificate (PDF)

Need Help Choosing the Right Cooling Kit?

Not sure which GoodWe inverter generation you have? Browse our GoodWe inverter cooling kits or contact us with your exact inverter model number. We will help you choose a suitable cooling solution.