diff --git a/Abrechnung/module.php b/Abrechnung/module.php
index 832cbe3..916ed08 100644
--- a/Abrechnung/module.php
+++ b/Abrechnung/module.php
@@ -359,92 +359,62 @@ class Abrechnung extends IPSModule
         return ['html' => $html, 'sum' => $total];
     }
 
-    private function AddMeterToPDFRow($meter, $tariffs, $from, $to, $type)
-    {
-        $rows       = '';
-        $totalCost  = 0.0;
-        $usedTariffs = [];
-        $varId      = $meter['var_consumption'];
+private function AddMeterToPDFRow($meter, $tariffs, $from, $to, $type)
+{
+    $varId = $meter['var_consumption'];
 
-        if (!IPS_VariableExists($varId)) {
-            return ['row' => '', 'value' => 0, 'tariffs' => []];
-        }
-
-        $filteredTariffs = array_filter($tariffs, fn($t) =>
-            strtolower(trim($t['unit_type'] ?? '')) === strtolower(trim($type))
-        );
-
-        foreach ($filteredTariffs as &$t) {
-            $t['start_ts'] = $this->toUnixTs($t['start'], false);
-            $t['end_ts']   = $this->toUnixTs($t['end'], true);
-        }
-        unset($t);
-        usort($filteredTariffs, fn($a, $b) => ($a['start_ts'] ?? 0) <=> ($b['start_ts'] ?? 0));
-
-        $currentStart = $from;
-        while ($currentStart < $to) {
-            $activeTariff = null;
-            foreach ($filteredTariffs as $t) {
-                if (($t['start_ts'] ?? 0) <= $currentStart && $currentStart <= ($t['end_ts'] ?? 0)) {
-                    $activeTariff = $t;
-                    break;
-                }
-            }
-
-            if (!$activeTariff) {
-                $activeTariff = ['start_ts' => $currentStart, 'end_ts' => $to, 'price' => 0.0];
-            }
-
-            $tariffEnd   = (int)$activeTariff['end_ts'];
-            $tariffPrice = (float)$activeTariff['price'];
-
-            $key = $activeTariff['start_ts'] . '-' . $activeTariff['end_ts'] . '-' . $tariffPrice;
-            if (!isset($usedTariffs[$key])) {
-                $usedTariffs[$key] = [
-                    'start' => $activeTariff['start_ts'],
-                    'end'   => $activeTariff['end_ts'],
-                    'price' => $tariffPrice
-                ];
-            }
-
-            $startValue = $this->GetValueAt($varId, $currentStart, true);
-            $segmentEnd = ($tariffEnd < $to) ? $tariffEnd : $to;
-            $endValue   = $this->GetValueAt($varId, $segmentEnd, true);
-
-            if ($startValue === null || $endValue === null) {
-                break;
-            }
-
-            $verbrauch = max(0, $endValue - $startValue);
-            $kosten    = round(($tariffPrice / 100) * $verbrauch, 2);
-            $totalCost += $kosten;
-
-            $rows .= "<tr>
-                <td>{$meter['name']}</td>
-                <td>{$type}</td>
-                <td align='center'>" . date('d.m.Y', $currentStart) . "</td>
-                <td align='center'>" . date('d.m.Y', $segmentEnd) . "</td>
-                <td align='right'>" . number_format($startValue, 2) . "</td>
-                <td align='right'>" . number_format($endValue, 2) . "</td>
-                <td align='right'>" . number_format($verbrauch, 2) . "</td>
-                <td align='right'>" . number_format($tariffPrice, 2) . "</td>
-                <td align='right'>" . number_format($kosten, 2) . "</td>
-            </tr>";
-
-            if ($tariffEnd < $to) {
-                $currentStart = $tariffEnd + 1;
-            } else {
-                break;
-            }
-        }
-
-        if ($rows === '') {
-            return ['row' => '', 'value' => 0, 'tariffs' => []];
-        }
-
-        return ['row' => $rows, 'value' => $totalCost, 'tariffs' => array_values($usedTariffs)];
+    if (!IPS_VariableExists($varId)) {
+        return ['row' => '', 'value' => 0, 'tariffs' => []];
     }
 
+    // ---- 1) Start- und Endwerte direkt holen ----
+    $startValue = $this->GetValueAt($varId, $from, false);   // letzter Wert VOR dem Start
+    $endValue   = $this->GetValueAt($varId, $to, true);      // erster Wert NACH dem Ende
+
+    if ($startValue === null || $endValue === null) {
+        return ['row' => '', 'value' => 0, 'tariffs' => []];
+    }
+
+    // ---- 2) Verbrauch simple Differenz ----
+    $verbrauch = max(0, $endValue - $startValue);
+
+    // ---- 3) passenden Tarif suchen ----
+    $tariffPrice = 0.0;
+    foreach ($tariffs as $t) {
+        if (strtolower(trim($t['unit_type'] ?? '')) === strtolower(trim($type))) {
+            $tariffPrice = floatval($t['price']);
+            break;
+        }
+    }
+
+    // ---- 4) Kosten (Rp → CHF) ----
+    $kosten = round(($tariffPrice / 100) * $verbrauch, 2);
+
+    // ---- 5) Tabellenzeile ----
+    $row = "<tr>
+        <td>{$meter['name']}</td>
+        <td>{$type}</td>
+        <td align='center'>" . date('d.m.Y', $from) . "</td>
+        <td align='center'>" . date('d.m.Y', $to) . "</td>
+        <td align='right'>" . number_format($startValue, 2) . "</td>
+        <td align='right'>" . number_format($endValue, 2) . "</td>
+        <td align='right'>" . number_format($verbrauch, 2) . "</td>
+        <td align='right'>" . number_format($tariffPrice, 2) . "</td>
+        <td align='right'>" . number_format($kosten, 2) . "</td>
+    </tr>";
+
+    return [
+        'row'     => $row,
+        'value'   => $kosten,
+        'tariffs' => [[
+            'start' => $from,
+            'end'   => $to,
+            'price' => $tariffPrice
+        ]]
+    ];
+}
+
+
     // ====================== Hilfsfunktionen ======================
 
     private function GetValueAt($varId, $timestamp, $nearestAfter = true)