Fronius Symo monitoring with Netdata

Collects metrics from the configured solar power installation from Fronius Symo.

Requirements

  • Configuration file fronius.conf in the node.d Netdata config dir (default: /etc/netdata/node.d/fronius.conf)
  • Fronius Symo with network access (http)

It produces per server:

  1. Power
  • Current power input from the grid (positive values), output to the grid (negative values), in W
  • Current power input from the solar panels, in W
  • Current power stored in the accumulator (if present), in W (in theory, untested)
  1. Consumption
  • Local consumption in W
  1. Autonomy
  • Relative autonomy in %. 100 % autonomy means that the solar panels are delivering more power than it is needed by local consumption.
  • Relative self consumption in %. The lower the better
  1. Energy
  • The energy produced during the current day, in kWh
  • The energy produced during the current year, in kWh
  1. Inverter
  • The current power output from the connected inverters, in W, one dimension per inverter. At least one is always present.

configuration

Sample:

{
"enable_autodetect": false,
"update_every": 5,
"servers": [
{
"name": "Symo",
"hostname": "symo.ip.or.dns",
"update_every": 5,
"api_path": "/solar_api/v1/GetPowerFlowRealtimeData.fcgi"
}
]
}

If no configuration is given, the module will be disabled. Each update_every is optional, the default is 5.


Fronius Symo 8.2

The plugin has been tested with a single inverter, namely Fronius Symo 8.2-3-M:

  • Datalogger version: 240.162630
  • Software version: 3.7.4-6
  • Hardware version: 2.4D

Other products and versions may work, but without any guarantees.

Example Netdata configuration for node.d/fronius.conf. Copy this section to fronius.conf and change name/ip. The module supports any number of servers. Sometimes there is a lag when collecting every 3 seconds, so 5 should be okay too. You can modify this per server.

{
"enable_autodetect": false,
"update_every": 5,
"servers": [
{
"name": "solar",
"hostname": "symo.ip.or.dns",
"update_every": 5,
"api_path": "/solar_api/v1/GetPowerFlowRealtimeData.fcgi"
}
]
}

The output of /solar_api/v1/GetPowerFlowRealtimeData.fcgi looks like this:

{
"Head" : {
"RequestArguments" : {},
"Status" : {
"Code" : 0,
"Reason" : "",
"UserMessage" : ""
},
"Timestamp" : "2017-07-05T12:35:12+02:00"
},
"Body" : {
"Data" : {
"Site" : {
"Mode" : "meter",
"P_Grid" : -6834.549847,
"P_Load" : -1271.450153,
"P_Akku" : null,
"P_PV" : 8106,
"rel_SelfConsumption" : 15.685297,
"rel_Autonomy" : 100,
"E_Day" : 35020,
"E_Year" : 5826076,
"E_Total" : 14788870,
"Meter_Location" : "grid"
},
"Inverters" : {
"1" : {
"DT" : 123,
"P" : 8106,
"E_Day" : 35020,
"E_Year" : 5826076,
"E_Total" : 14788870
}
}
}
}
}
Last updated on