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How do I configure a (hybrid) Huawei inverter with optimizers?

A sleek, white Huawei router stands prominently against a backdrop of winding rivers and lush greenery, suggesting connectivity and innovation.

Correctly configuring a Huawei inverter in combination with optimizers, a battery (accu), and an EV charger requires careful setup through the Huawei Smart Energy Management System (such as the FusionSolar app or web interface), as well as proper physical connections.

Here is an overview of the steps:

Physical Installation

1. Optimizers on panels Connect each solar panel to a Huawei SUN2000-P optimizer (if used). Ensure all optimizers are properly connected and correctly detected by the inverter.

2. Inverter (e.g. SUN2000) Install the inverter according to the manual. Connect the inverter to:

  • the DC side of the optimizers
  • the AC side to your main distribution board
  • the network (LAN or Wi‑Fi) for monitoring and configuration
  • CT clamps for measurement, if desired

3. Battery (e.g. Huawei LUNA2000) Connect the battery to the inverter’s battery port. Verify the battery is powered on and recognized.

4. EV Charger (e.g. Huawei FusionCharge or third-party) There is no physical connection between the EV charger and the inverter—only a virtual link. Enable Modbus TCP in the inverter’s Dongle Parameter settings (set to unrestricted), then activate the charger and the system should detect it automatically. For third‑party chargers: connect to the same network switch or modem and link to the inverter. Ensure the charger supports load management and communicates with the energy management system.

Software Setup (FusionSolar app/web)

1. Connect to the inverter Use the FusionSolar appOpens in a new tab or log into the web interface. Select the installer login.

2. Scan QR codes and add devices Once cable connections are correct, simply scan the inverter and, in device commissioning, search for devices. You don’t need to scan every unit individually. Configure the optimizers: run a self‑inspection via the app and ensure each panel shows up in the layout.

3. Battery setup Activate the battery via the menu. Choose whether to operate with time‑of‑use storage (e.g. charging at night when electricity is cheap) or PV self‑consumption. Set the End of Discharge limit and enable the Charge from AC option.

4. Smart Energy Management Go to Device Management → Smart Energy Controller. Enable Smart PV Management and set priorities: first own consumption, then battery charging, then EV charging.

5. EV charger configuration (if Huawei charger) Set charging schedules (e.g. charge only with solar energy). Enable dynamic load management if available.

6. Monitoring and optimization Check all devices in the FusionSolar portal or app. Test battery, charger, and PV system operation (including production, consumption, and grid injection).

Key Considerations

  • Firmware updates: Ensure all devices have up‑to‑date firmware via the FusionSolar app—this is absolutely essential for the S1 7 kW battery.
  • CT clamps: Install current transformers (CTs) for accurate energy management.