diff --git a/src/frequenz/client/common/microgrid/__init__.py b/src/frequenz/client/common/microgrid/__init__.py
index d24d3f33..4f24993e 100644
--- a/src/frequenz/client/common/microgrid/__init__.py
+++ b/src/frequenz/client/common/microgrid/__init__.py
@@ -1,4 +1,51 @@
 # License: MIT
-# Copyright © 2023 Frequenz Energy-as-a-Service GmbH
+# Copyright © 2024 Frequenz Energy-as-a-Service GmbH
 
-"""Frequenz microgrid definition."""
+"""Module to define the microgrid used with the common client."""
+
+from __future__ import annotations  # required for constructor type hinting
+
+from dataclasses import dataclass
+from typing import Self
+
+# pylint: disable=no-name-in-module
+from frequenz.api.common.v1.microgrid.microgrid_pb2 import (
+    MicrogridComponentIDs as PBMicrogridComponentIDs,
+)
+# pylint: enable=no-name-in-module
+
+@dataclass(frozen=True, kw_only=True)
+class MicrogridComponentIDs:
+    """Linking component IDs with their respective microgrid ID."""
+
+    microgrid_id: int
+    """The ID of the microgrid."""
+
+    component_ids: Sequence[int]
+    """List of component IDs belonging to this microgrid."""
+
+    @classmethod
+    def from_proto(cls, microgrid_component_ids: PBMicrogridComponentIDs) -> Self:
+        """Convert a protobuf MicrogridComponentIDs to MicrogridComponentIDs object.
+
+        Args:
+            microgrid_component_ids: MicrogridComponentIDs to convert.
+
+        Returns:
+            MicrogridComponentIDs object corresponding to the protobuf message.
+        """
+        return cls(
+            microgrid_id=microgrid_component_ids.microgrid_id,
+            component_ids=List(microgrid_component_ids.component_ids),
+        )
+
+    def to_proto(self) -> PBMicrogridComponentIDs:
+        """Convert a MicrogridComponentIDs object to protobuf MicrogridComponentIDs.
+
+        Returns:
+            Protobuf message corresponding to the MicrogridComponentIDs object.
+        """
+        return PBMicrogridComponentIDs(
+            microgrid_id=self.microgrid_id,
+            component_ids=List(self.component_ids),
+        )