diff --git a/csharp/App/SaliMax/src/Ess/StatusRecord.cs b/csharp/App/SaliMax/src/Ess/StatusRecord.cs
index 53c50303d..162242816 100644
--- a/csharp/App/SaliMax/src/Ess/StatusRecord.cs
+++ b/csharp/App/SaliMax/src/Ess/StatusRecord.cs
@@ -23,9 +23,9 @@ public record StatusRecord
     public required AcPowerDevice?      AcGridToAcIsland    { get; init; } 
     public required DcPowerDevice?      LoadOnDc            { get; init; } 
     public required RelaysRecord?       Relays              { get; init; } 
-    public required AmptStatus          PvOnDc              { get; init; } 
+    public required AmptStatus?         PvOnDc              { get; init; } 
     public required Config              Config              { get; init; } 
+    
     public required EssControl          EssControl          { get; set; }    // TODO: init only
     public required StateMachine        StateMachine        { get; init; } 
-    
 }