Home Assistant sensor for Falu Energi & Vatten

Custom component to get usage data from Falu Energi & Vatten for Home Assistant.

Falu Energi & Vatten doesn't have an open api, so we are acting as a Chrome user logging in with username (or customer number) and password.

Data is fetched every hour by default. This is kind of excessive since they only update the data once a day around 00:00.

Installation

1. Navigate to your HA configuration folder (the one with configuration.yaml in it).
2. If you do not have a custom_components folder there, create it.
3. In the custom_components folder, create a new folder called falu_energi_vatten.
4. Download or clone the repository.
5. Place the files you downloaded in the new folder you created.

Using your HA configuration folder as a starting point, it should now look something like this:

custom_components/falu_energi_vatten/__init__.py
custom_components/falu_energi_vatten/manifest.json
custom_components/falu_energi_vatten/README.md
custom_components/falu_energi_vatten/sensor.py

Setup

Add the sensor to configuration.yaml:

sensor:
  - platform: falu_energi_vatten
    username: 123456 # Could be username or customer number
    password: password1

Lovelace

Example chart with ApexCharts Card

type: custom:apexcharts-card
header:
  show: true
  title: Förbrukning per dag
graph_span: 30d
span:
  start: day
  offset: '-30d'
yaxis:
  - id: usage
    min: 0
apex_config:
  dataLabels:
    enabled: true
  stroke:
    width: 2
series:
  - entity: sensor.falu_energi_vatten_usage
    name: Förbrukning
    yaxis_id: usage
    type: line
    extend_to_end: false
    show:
      legend_value: false
    data_generator: |
      return entity.attributes.usage_per_day.map((entry) => {
        return [new Date(entry.date), entry.usage];
      });