diff --git a/yaml/xyz/openbmc_project/Inventory/Item.interface.yaml b/yaml/xyz/openbmc_project/Inventory/Item.interface.yaml
index 8cc391d..44f8d8c 100644
--- a/yaml/xyz/openbmc_project/Inventory/Item.interface.yaml
+++ b/yaml/xyz/openbmc_project/Inventory/Item.interface.yaml
@@ -64,3 +64,11 @@
       reverse_name: fault_identifying
       required_endpoint_interfaces:
           - xyz.openbmc_project.Led.Group
+    - name: powered_by
+      description: >
+          Objects that implement Item can optionally implement the
+          'powered_by' association to provide a link to one or more
+          power supplies.
+      reverse_name: powering
+      required_endpoint_interfaces:
+          - xyz.openbmc_project.Inventory.Item.PowerSupply