diff --git a/message_definitions/v1.0/messages.xml b/message_definitions/v1.0/messages.xml
index fc8de87..bf41f80 100644
--- a/message_definitions/v1.0/messages.xml
+++ b/message_definitions/v1.0/messages.xml
@@ -152,7 +152,13 @@
       <field name="val2" type="uint16"/>
     </message>
 
-    <!-- 19 is free-->
+    <message name="POWER_DEVICE" id="19">
+      <field name="node_id" type="uint8"/>
+      <field name="circuit" type="uint8"/>
+      <field name="current" type="float"/>
+      <field name="voltage" type="float"/>
+    </message>
+
 
     <message name="CAM" id="20">
       <field name="pan" type="int16" unit="deg"/>