Complete Example: Sigenergy System with Hybrid Inverter¶

This guide demonstrates configuring a Sigenergy system with hybrid inverter architecture, multiple solar arrays, and grid connection.

System Overview¶

This example uses the test system configuration:

• Battery: 32 kWh (Sigenergy SigenStor), 99% efficiency
• Solar: 27 kW peak (four orientations: East, North, South, West)
• Inverter: 30 kW hybrid inverter (DC/AC coupling)
• Grid: 55 kW import limit, 30 kW export limit
• Load: 1 kW constant base load

graph LR
    subgraph DC Side
        Battery[Battery<br/>32kWh] <--> Inverter
        Solar[Solar<br/>27kW] --> Inverter
    end

    subgraph AC Side
        Inverter[Inverter<br/>30kW] <--> Switchboard[Switchboard]
        Grid[Grid<br/>±55kW/±30kW] <--> Switchboard
        Switchboard --> Load[Load<br/>1kW]
    end

Prerequisites¶

Before starting this configuration, ensure you have:

Required Integrations¶

• HAEO: Installed via HACS (see Installation guide)
• Sigenergy: Provides battery capacity and SOC sensors
• Solar Forecast: Open-Meteo Solar Forecast integration
• Electricity Pricing: Any integration providing import/export price forecasts

Configuration Requirements¶

• Multiple solar array orientations configured in forecast integration
• Battery SOC sensor available from Sigenergy integration
• Constant load value determined (see Load configuration)

Configuration Steps¶

Step 1: Log In and Add HAEO¶

Log in to your Home Assistant instance, navigate to Settings → Devices & services, and add the HAEO integration. Enter a name for your energy network — this example uses "Sigenergy System".

‹ 1 / 19 Navigate settings home ›

After submitting, you should see a Switchboard element already exists. This is the AC power balance point where grid and loads connect.

Step 2: Add Inverter¶

The Inverter element models your hybrid inverter with its built-in DC bus. Battery and solar will connect to this element.

‹ 1 / 24 Navigate integration integration page ›

Step 3: Add Battery¶

Configure the Sigenergy battery, connecting to the Inverter's DC side.

‹ 1 / 38 Finish dialog result ›

Step 4: Add Solar¶

Configure solar arrays with forecast sensors for each orientation, connecting to the Inverter's DC side.

‹ 1 / 30 Finish dialog result ›

Step 5: Add Grid Connection¶

Configure grid with pricing and limits, connecting to the Switchboard.

‹ 1 / 40 Finish dialog result ›

Step 6: Add Load¶

Configure the base load consumption, connecting to the Switchboard.

‹ 1 / 16 Finish dialog result ›

Step 7: Verify Setup¶

After completing configuration, verify that all elements were created successfully.

‹ 1 / 2 Finish dialog result ›

Verification¶

Navigate to Settings → Devices & Services → HAEO and click on "Sigenergy System" to view the device page.

Expected Device Hierarchy¶

In the HAEO integration page, you should see:

Key Sensors to Monitor¶

Network-level:

• sensor.sigenergy_system_optimization_cost - Total forecasted cost ($)
• sensor.sigenergy_system_optimization_status - Should show "success"
• sensor.sigenergy_system_optimization_duration - Solve time (seconds)

Battery:

• sensor.battery_power_charge - Charging power (kW)
• sensor.battery_power_discharge - Discharging power (kW)
• sensor.battery_energy_stored - Current energy level (kWh)
• sensor.battery_state_of_charge - SOC percentage (%)

Solar:

• sensor.solar_power - Optimal generation (kW)
• sensor.solar_forecast_limit - Value of additional generation capacity ($/kWh)

Grid:

• sensor.grid_power_import - Import from grid (kW)
• sensor.grid_power_export - Export to grid (kW)
• sensor.grid_cost_import - Import cost ($)
• sensor.grid_revenue_export - Export revenue ($)

Load:

• sensor.load_power - Load consumption (kW)

Inverter:

• sensor.inverter_power_dc_to_ac - DC→AC power flow (kW)
• sensor.inverter_power_ac_to_dc - AC→DC power flow (kW)
• sensor.inverter_power_active - Net AC power (kW)

All sensors include a forecast attribute with future optimized values.

Architecture Notes¶

This hybrid inverter configuration uses the Inverter element which provides:

• Built-in DC bus for battery and solar connections
• Bidirectional AC/DC conversion with power limits
• AC connection to the Switchboard where grid and loads connect

The Inverter element simplifies configuration compared to manual DC/AC nets with connection elements, while accurately modeling:

• DC→AC export cannot exceed inverter rating
• AC→DC charging cannot exceed inverter rating
• Battery and solar share the DC bus capacity

See Node for more on hybrid inverter modeling.

Next steps¶