diff --git a/Energy_Pie/module.php b/Energy_Pie/module.php
index 4f07bef..57513ca 100644
--- a/Energy_Pie/module.php
+++ b/Energy_Pie/module.php
@@ -100,34 +100,59 @@ class Energy_Pie extends IPSModule
     /* ===================== CORE LOGIC ======================== */
     /* ========================================================= */
 
-    private function RecalculateAndPush(): void
-    {
-        $range = $this->ReadAttributeString(self::ATTR_RANGE);
-        $date  = $this->ReadAttributeString(self::ATTR_DATE);
+private function RecalculateAndPush(): void
+{
+    $range = $this->ReadAttributeString(self::ATTR_RANGE);
+    $date  = $this->ReadAttributeString(self::ATTR_DATE);
 
-        [$tStart, $tEnd] = $this->getRange($range, $date);
+    [$tStart, $tEnd] = $this->getRange($range, $date);
 
-        $prod = $this->readDelta($this->ReadPropertyInteger('VarProduction'),  $tStart, $tEnd);
-        $cons = $this->readDelta($this->ReadPropertyInteger('VarConsumption'), $tStart, $tEnd);
-        $feed = $this->readDelta($this->ReadPropertyInteger('VarFeedIn'),      $tStart, $tEnd);
-        $grid = $this->readDelta($this->ReadPropertyInteger('VarGrid'),        $tStart, $tEnd);
+    // Deltas aus dem Archiv
+    $prod = $this->readDelta($this->ReadPropertyInteger('VarProduction'), $tStart, $tEnd);
+    $feed = $this->readDelta($this->ReadPropertyInteger('VarFeedIn'),     $tStart, $tEnd);
+    $grid = $this->readDelta($this->ReadPropertyInteger('VarGrid'),       $tStart, $tEnd);
 
-        $payload = [
-            'range'  => $range,
-            'date'   => $date,
-            'tStart' => $tStart,
-            'tEnd'   => $tEnd,
-            'values' => [
-                'Produktion'  => $prod,
-                'Verbrauch'   => $cons,
-                'Einspeisung' => $feed,
-                'Netz'        => $grid
-            ]
-        ];
+    // Hausverbrauch = Produktion - Einspeisung + Netz
+    $house = $prod - $feed + $grid;
 
-        $this->UpdateVisualizationValue(json_encode($payload, JSON_THROW_ON_ERROR));
+    // optionaler Schutz (z.B. wenn Logs/Resets Mist bauen)
+    if ($house < 0) {
+        $house = 0.0;
     }
 
+    // Debug ins Log, damit du die Rechnung sofort prüfen kannst
+    $this->LogMessage(
+        sprintf(
+            "EnergyPie | Range=%s Date=%s | %s -> %s | Prod=%.3f Feed=%.3f Grid=%.3f House=%.3f",
+            $range,
+            $date,
+            date('Y-m-d H:i:s', $tStart),
+            date('Y-m-d H:i:s', $tEnd),
+            $prod,
+            $feed,
+            $grid,
+            $house
+        ),
+        KL_NOTIFY
+    );
+
+    $payload = [
+        'range'  => $range,
+        'date'   => $date,
+        'tStart' => $tStart,
+        'tEnd'   => $tEnd,
+        'values' => [
+            'Produktion'   => (float)$prod,
+            'Einspeisung'  => (float)$feed,
+            'Netz'         => (float)$grid,
+            'Hausverbrauch'=> (float)$house
+        ]
+    ];
+
+    $this->UpdateVisualizationValue(json_encode($payload, JSON_THROW_ON_ERROR));
+}
+
+
     /* ========================================================= */
     /* ===================== TIME RANGES ======================= */
     /* ========================================================= */