diff --git a/csharp/Lib/Units/Composite/DcBus.cs b/csharp/Lib/Units/Composite/DcBus.cs
index 28653ea3d..74437f3c4 100644
--- a/csharp/Lib/Units/Composite/DcBus.cs
+++ b/csharp/Lib/Units/Composite/DcBus.cs
@@ -8,7 +8,7 @@ public sealed class DcBus
 
    public required Voltage     Voltage { get; init; } 
    public required Current     Current { get; init; } 
-   public required ActivePower Power   { get; init; } 
+   public required DcPower     Power   { get; init; } 
 
    public static DcBus FromVoltageCurrent(Voltage voltage, Current current) => new()
    {