diff --git a/CHANGELOG.md b/CHANGELOG.md
index 389d91cd85..64747c2082 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -57,6 +57,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Replace `PvModel` with its new implementation [#1149](https://github.com/ie3-institute/simona/issues/1149)
 - Replace `WecModel` with its new implementation [#1154](https://github.com/ie3-institute/simona/issues/1154)
 - Replace `StorageModel` with its new implementation [#1153](https://github.com/ie3-institute/simona/issues/1153)
+- Use ValidationUtils for ThermalGrids [#1117](https://github.com/ie3-institute/simona/issues/1117)
 
 ### Changed
 - Adapted to changed data source in PSDM [#435](https://github.com/ie3-institute/simona/issues/435)
diff --git a/src/main/scala/edu/ie3/simona/io/grid/GridProvider.scala b/src/main/scala/edu/ie3/simona/io/grid/GridProvider.scala
index 8777c1a3e9..262d499df1 100644
--- a/src/main/scala/edu/ie3/simona/io/grid/GridProvider.scala
+++ b/src/main/scala/edu/ie3/simona/io/grid/GridProvider.scala
@@ -100,8 +100,12 @@ object GridProvider extends LazyLogging {
               new FileNamingStrategy(),
             )
             .asScala
-            .map(thermalGrid => thermalGrid.bus() -> thermalGrid)
+            .map { thermalGrid =>
+              ValidationUtils.check(thermalGrid)
+              thermalGrid.bus() -> thermalGrid
+            }
             .toMap
+
         case None =>
           throw new RuntimeException(
             "CSVGridSource requires csv params to be set!"