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---
title: Fronius
description: Instructions on how to connect your Fronius Inverter to Home Assistant.
ha_category:
- Energy
- Sensor
ha_iot_class: Local Polling
ha_release: 0.96
ha_codeowners:
- '@nielstron'
ha_domain: fronius
---
The `fronius` sensor polls a [Fronius](https://www.fronius.com/) solar inverter, battery system or smart meter and present the values as sensors in Home Assistant.
## Configuration
To enable this sensor, add the following lines to your `configuration.yaml` file:
```yaml
sensor:
- platform: fronius
resource: FRONIUS_URL
monitored_conditions:
- sensor_type: inverter
```
{% configuration %}
resource:
description: "The IP address of the Fronius device"
required: true
type: string
monitored_conditions:
description: "Conditions to display in the frontend"
required: true
type: list
keys:
sensor_type:
description: "The kind of device, can be one of \"inverter\", \"storage\", \"meter\", or \"power_flow\""
required: true
type: string
scope:
description: "The device type for storage and inverter, can be either \"device\" or \"system\""
required: false
type: string
default: "device"
device:
description: "The id of the device to poll"
required: false
default: "\"1\" for inverters and \"0\" for other devices such as storages in compliance with Fronius Specs"
{% endconfiguration %}
## Monitored data
Each sensor type chosen as monitored condition adds a set of sensors to Home Assistant.
- `power_flow`
Cumulative data such as the energy produced in the current day or year and overall produced energy.
Also, live values such as:
- Power fed to the grid (if positive) or taken from the grid (if negative).
- Power load as a generator (if positive) or consumer (if negative).
- Battery charging power (if positive) or discharging power (if negative) and information about backup or standby mode.
- Photovoltaic production.
- Current relative self-consumption of produced energy.
- Current relative autonomy.
- `inverter`
Cumulative data such as the energy produced in the current day or year and overall produced energy.
Also, live values about AC/DC power, current, voltage and frequency.
The data is only shown when choosing device scope.
- `meter`
Detailed information about power, current and voltage, if supported split among the phases.
The data is only shown when choosing device scope.
- `storage`
Detailed information about current, voltage, state, cycle count, capacity and more about installed batteries.
Note that some data (like photovoltaic production) is only provided by the Fronius device when non-zero.
The corresponding sensors are added to Home Assistant as entities as soon as they are available.
This means for example that when Home Assistant is started at night,
there might be no sensor providing photovoltaic related data.
This does not need to be problematic as the values will be added on sunrise,
when the Fronius devices begins providing the needed data.
## Examples
When including more of the components that one Fronius device offers,
a list of sensors that are to be integrated can be given like below.
```yaml
sensor:
- platform: fronius
resource: FRONIUS_IP_ADDRESS
monitored_conditions:
- sensor_type: inverter
device: 1
- sensor_type: meter
scope: system
- sensor_type: meter
device: 3
- sensor_type: storage
device: 0
- sensor_type: power_flow
```