Solar Battery View

A Cinnamon panel applet that displays battery state of charge and power flow from a Fronius inverter via the Fronius Solar API v1.

Features

• Battery icon with color-coded SOC (green/yellow/red) and charge direction arrows (>> charging, << discharging)
• Solar panel icon showing grid status: green >> (exporting), red << (importing), blue = (neutral)
• SOC percentage displayed as text between the icons
• Tooltip with detailed power flow information (battery, PV, grid)
• Click to refresh data immediately
• Configurable thresholds for SOC colors, PV production, and grid export/import significance

Requirements

• A Fronius inverter (tested with Symo GEN24) accessible on the local network
• The Fronius Solar API v1 must be enabled (default on most models)
• A battery connected to the inverter (tested with BYD)

Configuration

• Inverter IP: IP address of your Fronius inverter
• Poll interval: How often to fetch data (5-300 seconds, click applet for manual refresh)
• SOC green threshold: SOC percentage at or above which the battery icon turns green
• SOC yellow threshold: SOC percentage at or above which the battery icon turns yellow (below is red)
• PV production threshold: PV power below this value is considered inactive (filters noise at night)
• Grid export/import threshold: Grid exchange below this value is shown as neutral (filters insignificant values)

Icon Legend

Battery Icon (right)

Solar Icon (left)