Sankey Chart Card

A Home Assistant lovelace card to display a sankey chart. For example for energy/power/water consumption.

This card is intended to display connections between entities with numeric state. It is not a general graph card.

Options

Name	Type	Default	Description
type	string		custom:sankey-chart
autoconfig	object		Experimental. See autoconfig
sections	list		Required unless using autoconfig. Entities to show divided by sections, see sections object for additional options.
layout	string	auto	Valid options are: 'horizontal' - flow left to right, 'vertical' - flow top to bottom & 'auto' - determine based on available space (based on the section->min_witdh option, which defaults to 150)
energy_date_selection	boolean	false	Integrate with the Energy Dashboard. Filters data based on the energy-date-selection card. Use this only for accumulated data sensors (energy/water/gas) and with a type:energy-date-selection card. You still need to specify all your entities as HA doesn't know exactly how to connect them but you can use the general kWh entities that you have in the energy dashboard. In the future we may use areas to auto configure the chart.
title	string		Optional header title for the card
unit_prefix	string		Metric prefix for the unit of measurment. See https://en.wikipedia.org/wiki/Unit_prefix . Supported values are m, k, M, G, T
round	number	0	Round the value to at most N decimal places. May not apply to near zero values, see issue #29
height	number	200	The height of the card in pixels. Only matters while in horizontal layout. Vertical layout height is dynamic based on content
wide	boolean	false	Set this to true if you see extra empty space in the right side of the card. This will expand it horizontally to cover all the available space. Enable if you see empty space on the right size
show_icons	boolean	false	Display entity icons
show_names	boolean	false	Display entity names
show_states	boolean	true	Display entity states
show_units	boolean	true	Display unit of measurement
min_box_size	number	3	Minimum size of an entity box
min_box_distance	number	5	Minimum space between entity boxes
min_state	number	>0	Any entity below this value will not be displayed. Only positive numbers above 0 are allowed. The default is to show everything above 0.
throttle	number		Minimum time in ms between updates/rerenders
static_scale	number		State value corresponding to the maximum size (height for horizontal layout and width in vertical) of the card. For example, if this is set to 1000, then a box with state 500 will take up half of its section. If some section exceeds the value of static_scale, the card will dynamically rescale overriding this option. See (#153)
convert_units_to	string		If entities are electricity (kWh) or gas (ft³) usage, convert them to energy (MJ), cost (monetary) or carbon (gCO2). For cost, you must also specify electricity_price and/or gas_price, as well as the monetary_unit of the price(s). For gCO2, all kWh values will be multiplied by the varying grid CO2 intensity, as with the Energy Dashboard.
co2_intensity_entity	string	sensor. co2_signal_co2_intensity	Entity providing carbon intensity of electricity (gCO2eq/kWh). If you have solar or storage, you may wish to create a template sensor to convert grid CO2 intensity to consumption CO2 intensity.
gas_co2_intensity	number	66.6 g/ft³ or 2352 g/m³	Carbon intensity of gas, e.g. in gCO2eq/ft³. Default value depends on locale; units must match those of gas entities.
electricity_price	number		Unit price of electricity, e.g. in USD/kWh. Automatic conversion does not support varying electricity prices like the Energy Dashboard does.
gas_price	number		Unit price of gas, e.g. in USD/ft³.
monetary_unit	string		Currency of the gas or electricity price, e.g. 'USD'
sort_by	string		Sort the entities. Valid options are: 'state'. If your values change often, you may want to use the throttle option to limit update frequency
sort_dir	string	desc	Sorting direction. Valid options are: 'asc' for smallest first & 'desc' for biggest first

Sections object

Name	Type	Requirement	Default	Description
entities	list	Required		Entities to show in this section. Could be just the entity_id as a string or an object, see entities object for additional options. Note that the order of this list matters
sort_by	string	Optional		Sort the entities in this section. Overrides the top level option
sort_dir	string	Optional	desc	Sorting direction for this section. Overrides the top level option
sort_group_by_parent	boolean	Optional	false	Group entities by parent before sorting. See #135
min_width	number	Optional		Minimum section width in pixels. Only relevant while in horizontal layout

Entities object

Name	Type	Requirement	Default	Description
entity_id	string	Required		Entity id of the sensor
attribute	string	Optional		Use the value of an attribute instead of the state of the entity. unit_of_measurement and id will still come from the entity. For more complex customization, please use HA templates.
type	string	Optional	entity	Possible values are 'entity', 'passthrough', 'remaining_parent_state', 'remaining_child_state'. See entity types
children	list	Optional		List of entity ids (strings or childred objects) describing child entities (branches). Only entities in subsequent sections will be connected. The last section must not contain children:
name	string	Optional	entity name from HA	Custom label for this entity
icon	string	Optional	entity icon from HA	Custom icon for this entity
unit_of_measurement	string	Optional	unit_of_measurement from HA	Custom unit_of_measurement for this entity. Useful when using attribute. If it contains a unit prefix, that must be in latin. Ex GВт, not ГВт
color	string	Optional	var(--primary-color)	Color of the box
color_on_state	boolean	Optional	false	Color the box based on state value
color_limit	string	Optional	1	State value for coloring the box based on state value
color_above	string	Optional	var(--paper-item-icon-color)	Color for state value above color_limit
color_below	string	Optional	var(--primary-color)	Color for state value below color_limit
add_entities	list	Optional		Experimental. List of entity ids. Their states will be added to this entity, showing a sum.
subtract_entities	list	Optional		Experimental. List of entity ids. Their states will be subtracted from this entity's state
tap_action	action	Optional	more-info	Home assistant action to perform on tap. Supported action types are more-info, zoom, navigate, url, toggle, call-service, fire-dom-event
children_sum	object	Optional		reconcile config. Determines how to handle mismatches between parents & children. For example if the sum of the energy from all rooms shouldn't exceed the energy of the whole house. See #37 and its related issues
parents_sum	object	Optional		reconcile config. Determines how to handle mismatches between parents & children. For example if the sum of the energy from all rooms shouldn't exceed the energy of the whole house. See #37 and its related issues

Children object

Name	Type	Requirement	Default	Description
entity_id	string	Required		Entity id of the child box
connection_entity_id	string	Optional		Entity id of the sensor to that determines how much of the parent flows into the child

Reconcile config

Name	Type	Requirement	Default	Description
should_be	string	Required		Valid options are 'equal', 'equal_or_less', 'equal_or_more'
reconcile_to	string	Required		Which value to display in case of inconsistency. Valid options are 'min', 'max', 'mean', 'latest

Entity types

• entity - The default value, representing an entity from HA
• passthrough - Used for connecting entities across sections, passing through intermediate sections. The card creates such passtroughs automatically when needed but you can create them manually in order to have the connection pass through a specific place. See issue #9. Here is an example passthrough config:

- entity_id: sensor.child_sensor
  type: passthrough
  # Note that passthrough entities have no children as they always connect to their own entity_id in the next section

• remaining_parent_state - Used for representing the unaccounted state from this entity's parent. Formerly known as the remaining configuration. Useful for displaying the unmeasured state as "Other". See issue #2 & #28. Only 1 is allowed per group. If you add 2, the state will not be split between them but an error will appear. Example:

- entity_id: whatever # as long as it is unique
  type: remaining_parent_state
  name: Other

• remaining_child_state - Used for representing the unaccounted state in this entity's children. Like remaining_parent_state but in reverse. Useful for displaying discrepancies where the children add up to more than the parent. See issue #2 & #15. Example:

- entity_id: whatever # as long as it is unique
  type: remaining_child_state
  name: Discrepancy

Autoconfig

This card supports automatic configuration generation based on the HA energy dashboard. It will set default values for some config parameters and populate the sections param. This is meant to show energy data and assumes you have configured your Energy Dashboard in HA. Use it like this:

- type: energy-date-selection # you can put this anywhere you want but it is required for energy dashboard integration 
- type: custom:sankey-chart
  # ...any other options
  autoconfig:
    print_yaml: false # optional
    # any additional autoconfig options (listed below)

Name	Type	Requirement	Default	Description
print_yaml	boolean	Optional	false	Prints the auto generated configuration after the card so you can use it as a starting point for customization. It shows up like an error. Don't worry about it.

Examples

Simple

- type: custom:sankey-chart
  show_names: true
  sections:
    - entities:
      - entity_id: sensor.power
        children:
          - sensor.washing_machine_power
          - sensor.other_power
    - entities:
      - sensor.washing_machine_power
      - sensor.other_power

Energy use

- type: custom:sankey-chart
  show_names: true
  unit_prefix: k
  round: 1
  wide: true
  sections:
    - entities:
        - entity_id: sensor.solar
          color: var(--warning-color)
          children:
            - sensor.total_energy
        - entity_id: sensor.grid
          children:
            - sensor.total_energy
        - entity_id: sensor.battery
          color: var(--success-color)
          children:
            - sensor.total_energy
    - entities:
        - entity_id: sensor.total_energy
          children:
            - sensor.floor1
            - sensor.floor2
            - sensor.garage
    - entities:
        - entity_id: sensor.garage
          color: purple
          children:
            - sensor.ev_charger
            - garage_other
        - entity_id: sensor.floor1
          children:
            - sensor.living_room
            - entity_id: sensor.washer
              connection_entity_id: sensor.washer_energy_net
        - entity_id: sensor.floor2
    - entities:
        - entity_id: sensor.ev_charger
          tap_action:
            action: toggle
        - entity_id: garage_other
          type: remaining_parent_state
          name: Other
        - sensor.living_room
        - sensor.washer

Reconcile state

Example config where the state of the children must not exceed their parent. reconcile_to: max means to take the bigger of the two values. In other words, if the sum of the children is more than the state of the parent, the parent state will be set to the sum of its children within the card. reconcile_to: min would do the opposite and reduce the state of the children so they fully fit within the parent. latest just takes whichever value was updated last.

- type: custom:sankey-chart
  show_names: true
  sections:
    - entities:
      - entity_id: sensor.power
        children_sum:
          should_be: equal_or_less
          reconcile_to: max
        children:
          - sensor.washing_machine_power
          - sensor.other_power
    - entities:
      - sensor.washing_machine_power
      - sensor.other_power

You can find more examples and help in the HA forum https://community.home-assistant.io/t/anyone-using-the-sankey-chart-card/423125

Energy Dashboard

This card supports partial Energy dashboard integration. You still need to specify the entities and connections for now. See energy_date_selection option.

Currently this chart just shows historical data based on a energy-date-selection card. It doesn’t know/care if your entities are in the default energy dashboard.

FAQ

Q: Do my entities need to be added to the energy dashboard first?

A: This card doesn't know/care if an entity is in the energy dashboard. Unless you use autoconfig because that relies entirely on the energy dashboard.

Q: How do I get total [daily] energy?

A: There isn’t a general Consumed Energy sensor in the HA Energy dashboard AFAIK. HA calculates it based on all the in/out kWh values. I can’t tell you exactly how to calculate it because it depends on what values you can monitor. Some people already have a Total Consumption sensor, others have a Current Consumption and create an integration sensor from that, etc.

Q: Can I group/sum entities in the chart?

A: The easiest way is to do it with a template sensor in HA. However it can be done in the chart without a new HA entity. If you have an entity with type: remaining_parent_state and it is the only child of its parents, it will just be a sum of all the parents. Similarly if you have an entity with type: remaining_child_state and it is the only parent of all its children, it will be a sum of all the children.

Q: How do I zoom back out after using the zoom action?

A: Tap the same (currently top level) entity again to reset the zoom level.

Q: My (template) sensor doesn't work with energy_date_selection!?

A: Sensors should have a proper state_class in order for statistics to work. Most commonly state_class: total. See https://developers.home-assistant.io/docs/core/entity/sensor/#long-term-statistics

Q: Can you add feature X, so I don't have to create template entities in HA?

A: Most probably no. There is nothing wrong with template entities and they should be the prefered approach instead of duplicating HA functionality in every card. I do make exceptions for often required features like remaining_parent_state but prefer to rely on HA functionality whenever I can.

Development

1. npm i
2. npm start
3. The compiled .js file will be accessible on http://127.0.0.1:5000/ha-sankey-chart.js.
4. On a running Home Assistant installation add this to your Lovelace resources:

- url: 'http://127.0.0.1:5000/ha-sankey-chart.js'
  type: module