diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7b49b8cb..78139b93 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,6 +9,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Added
 - Enhanced `ExtEmDataConnection` with `simulateInternal` method [#398](https://github.com/ie3-institute/simonaAPI/issues/398)
 - Added API structure to the docs [#405](https://github.com/ie3-institute/simonaAPI/issues/405)
+- Created public interface for `EvcsModel` [#421](https://github.com/ie3-institute/simonaAPI/issues/421)
 
 ### Changed
 - Splitting up `ExtSimAdapterData` into `SetupData` and a data connection [#400](https://github.com/ie3-institute/simonaAPI/issues/400)
diff --git a/src/main/java/edu/ie3/simona/api/data/model/ev/EvcsModel.java b/src/main/java/edu/ie3/simona/api/data/model/ev/EvcsModel.java
new file mode 100644
index 00000000..24aa5552
--- /dev/null
+++ b/src/main/java/edu/ie3/simona/api/data/model/ev/EvcsModel.java
@@ -0,0 +1,34 @@
+/*
+ * © 2025. TU Dortmund University,
+ * Institute of Energy Systems, Energy Efficiency and Energy Economics,
+ * Research group Distribution grid planning and operation
+ */
+
+package edu.ie3.simona.api.data.model.ev;
+
+import java.util.UUID;
+import javax.measure.quantity.Power;
+import tech.units.indriya.ComparableQuantity;
+
+public interface EvcsModel {
+
+  /**
+   * @return the uuid of this evcs
+   */
+  UUID getUuid();
+
+  /**
+   * @return the id of this evcs
+   */
+  String getId();
+
+  /**
+   * @return the maximum AC apparent power rating of this evcs
+   */
+  ComparableQuantity<Power> getSRated();
+
+  /**
+   * @return the rated power factor (cos φ) of this evcs
+   */
+  double getCosPhiRated();
+}