diff --git a/The-VDR-Plugin-System.md b/The-VDR-Plugin-System.md
index a3a597a..8eb3935 100644
--- a/The-VDR-Plugin-System.md
+++ b/The-VDR-Plugin-System.md
@@ -2089,6 +2089,17 @@ new cMyDeviceHook;
 </pre>
 
 and shall not delete this object. It will be automatically deleted when the program ends.
+<p>
+<b>Power management</b>
+<p>
+A device that can be put into a power save mode can implement the function
+
+<pre>
+virtual void SetPowerSaveMode(bool On);
+</pre>
+
+If On is true, power save mode shall be activated, if it is false,
+normal operating mode shall be restored.
 
 <hr><h2>Positioners</h2>