diff --git a/source/_dashboards/energy.markdown b/source/_dashboards/energy.markdown
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--- a/source/_dashboards/energy.markdown
+++ b/source/_dashboards/energy.markdown
@@ -235,6 +235,28 @@ type: energy-devices-detail-graph
 max_devices: 5
 ```
 
+## Sankey energy graph
+
+<p class='img'>
+  <img src='/images/dashboards/energy/sankey.png' alt='Screenshot of the sankey energy graph card'>
+  Screenshot of the sankey energy graph card.
+</p>
+
+The sankey energy graph shows the flow of energy in your home. It starts with sources and flows into the various consumers. Devices are grouped into floors and areas if these are configured.
+
+### Examples
+
+```yaml
+type: energy-sankey
+```
+
+The following example orients the flow from top to bottom:
+
+```yaml
+type: energy-sankey
+layout: vertical
+```
+
 ## Using Multiple Collections
 
 By default, all energy cards are linked to any `energy-date-selection` card on the view, and all `energy-date-selection` cards are linked to the same period. To enable multiple different date selections on the same view, it is necessary to link them to different collections. This is done by adding the variable `collection_key` to the card YAML, and giving this a value of any custom string that begins with `energy_`. (strings that do not start with `energy_` will generate an error).
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