diff --git a/PV_Forecast/module.html b/PV_Forecast/module.html
index aa4dc21..1a8291b 100644
--- a/PV_Forecast/module.html
+++ b/PV_Forecast/module.html
@@ -3,11 +3,7 @@
 <head>
   <meta charset="utf-8">
   <title>PV_Forecast</title>
-
-  <!-- Hinweis: Wenn Symcon/CDN blockiert, kommt "Highcharts nicht geladen".
-       Dann sag Bescheid, dann liefern wir Highcharts lokal aus. -->
   <script src="https://code.highcharts.com/highcharts.js"></script>
-
   <style>
     body { font-family: sans-serif; margin: 0; padding: 12px; }
     #chart { height: 420px; width: 100%; }
@@ -26,17 +22,13 @@
 
   <script>
     const metaEl = document.getElementById("meta");
-
-    window.onerror = function (msg, url, line, col) {
+    window.onerror = (msg, url, line, col) => {
       metaEl.textContent = `JS-Fehler: ${msg} (${line}:${col})`;
     };
 
-    // VSCode-freundlich (Platzhalter als String)
-    window.instanceId = Number("{{INSTANCE_ID}}");
-    const instanceId = window.instanceId;
-
+    const instanceId = Number("{{INSTANCE_ID}}");
     if (!Number.isFinite(instanceId) || instanceId <= 0) {
-      metaEl.textContent = "Fehler: INSTANCE_ID wurde nicht korrekt eingesetzt.";
+      metaEl.textContent = "Fehler: INSTANCE_ID nicht korrekt.";
       throw new Error("Invalid INSTANCE_ID");
     }
 
@@ -57,26 +49,24 @@
     }
 
     function render(data) {
+      if (typeof Highcharts === "undefined") {
+        metaEl.textContent = "Fehler: Highcharts nicht geladen (CSP/CDN).";
+        return;
+      }
+
+      const forecast = data?.series?.forecast ?? [];
+      const actual   = data?.series?.actual ?? [];
       const cachedAt = data?.meta?.forecast_cached_at
         ? new Date(data.meta.forecast_cached_at * 1000).toLocaleString()
         : "unbekannt";
 
-      const forecast = data?.series?.forecast ?? [];
-      const actual   = data?.series?.actual ?? [];
-      const isWatt    = !!data?.meta?.actual_is_watt;
-
-      if (typeof Highcharts === "undefined") {
-        metaEl.textContent = "Fehler: Highcharts nicht geladen (CSP/CDN/Mixed Content).";
-        return;
-      }
-
-      const yLabel = isWatt ? "Leistung (kW) [Ist umgerechnet]" : "Leistung (kW)";
+      metaEl.textContent = `OK | Cache: ${cachedAt} | Forecast: ${forecast.length} | Ist: ${actual.length}`;
 
       if (!chart) {
         chart = Highcharts.chart("chart", {
-          title: { text: "PV: Erwartung vs. Tatsächlich" },
+          title: { text: "PV: Erwartung vs. Tatsächlich (heute)" },
           xAxis: { type: "datetime" },
-          yAxis: { title: { text: yLabel } },
+          yAxis: { title: { text: "Leistung (kW)" } },
           tooltip: { shared: true, xDateFormat: "%d.%m.%Y %H:%M" },
           legend: { enabled: true },
           series: [
@@ -85,13 +75,10 @@
           ]
         });
       } else {
-        chart.yAxis[0].setTitle({ text: yLabel }, false);
         chart.series[0].setData(forecast, false);
         chart.series[1].setData(actual, false);
         chart.redraw();
       }
-
-      metaEl.textContent = `OK | Cache: ${cachedAt} | Forecast: ${forecast.length} | Ist: ${actual.length}`;
     }
 
     async function refresh() {
diff --git a/PV_Forecast/module.php b/PV_Forecast/module.php
index 0640aa7..7fa97e2 100644
--- a/PV_Forecast/module.php
+++ b/PV_Forecast/module.php
@@ -2,7 +2,6 @@
 
 class PV_Forecast extends IPSModule
 {
-    // GUID vom Archive Control (Standard in IP-Symcon)
     private const ARCHIVE_GUID = "{43192F0B-135B-4CE7-A0A7-1475603F3060}";
 
     public function Create()
@@ -14,11 +13,8 @@ class PV_Forecast extends IPSModule
         $this->RegisterPropertyInteger("RefreshMinutes", 5);
         $this->RegisterPropertyBoolean("ActualIsWatt", true);
 
-        // Timer
         $this->RegisterTimer("UpdateForecastTimer", 0, 'IPS_RequestAction($_IPS["TARGET"], "UpdateForecast", 0);');
 
-        // Hook für Visualisierung (JSON Endpoint)
-        // (Falls das automatische Registrieren bei dir nicht greift: du hast es manuell im WebHook Control bereits erledigt.)
         $this->RegisterHook("/hook/solcastcompare");
     }
 
@@ -26,13 +22,11 @@ class PV_Forecast extends IPSModule
     {
         parent::ApplyChanges();
 
-        // Tile Visualization aktivieren
         $this->SetVisualizationType(1);
 
         $mins = max(1, (int)$this->ReadPropertyInteger("RefreshMinutes"));
         $this->SetTimerInterval("UpdateForecastTimer", $mins * 60 * 1000);
 
-        // Hook hier nochmal versuchen zu registrieren (ist oft zuverlässiger)
         $this->RegisterHook("/hook/solcastcompare");
     }
 
@@ -42,7 +36,6 @@ class PV_Forecast extends IPSModule
             case "UpdateForecast":
                 $this->UpdateForecast();
                 break;
-
             default:
                 throw new Exception("Unknown Ident: " . $Ident);
         }
@@ -56,194 +49,70 @@ class PV_Forecast extends IPSModule
             return;
         }
 
-        try {
-            $json = Sys_GetURLContent($url);
-            if ($json === false || $json === "") {
-                $this->SendDebug("UpdateForecast", "Leere Antwort von URL", 0);
-                return;
-            }
-
-            $data = json_decode($json, true);
-            if (!is_array($data)) {
-                $this->SendDebug("UpdateForecast", "JSON decode fehlgeschlagen", 0);
-                return;
-            }
-
-            // Cache in Buffer
-            $this->SetBuffer("ForecastRaw", $json);
-            $this->SetBuffer("ForecastTS", (string)time());
-
-            $this->SendDebug("UpdateForecast", "Forecast aktualisiert", 0);
-        } catch (Throwable $e) {
-            $this->SendDebug("UpdateForecast", "Fehler: " . $e->getMessage(), 0);
+        $json = @Sys_GetURLContent($url);
+        if ($json === false || $json === "") {
+            $this->SendDebug("UpdateForecast", "Leere Antwort von URL", 0);
+            return;
         }
+
+        $data = json_decode($json, true);
+        if (!is_array($data)) {
+            $this->SendDebug("UpdateForecast", "JSON decode fehlgeschlagen", 0);
+            return;
+        }
+
+        $this->SetBuffer("ForecastRaw", $json);
+        $this->SetBuffer("ForecastTS", (string)time());
+        $this->SendDebug("UpdateForecast", "Forecast aktualisiert", 0);
     }
 
-    // -------- Datenaufbereitung fürs Diagramm --------
-
-    private function GetForecastSeries(): array
-    {
-        $raw = $this->GetBuffer("ForecastRaw");
-        if ($raw === "") {
-            return [];
-        }
-
-        $data = json_decode($raw, true);
-        if (!is_array($data) || !isset($data["estimated_actuals"]) || !is_array($data["estimated_actuals"])) {
-            return [];
-        }
-
-        // Solcast liefert period_end in UTC (Z)
-        $series = [];
-        foreach ($data["estimated_actuals"] as $row) {
-            if (!isset($row["period_end"], $row["pv_power_rooftop"])) {
-                continue;
-            }
-            $ts = strtotime($row["period_end"]); // UTC korrekt wegen "Z"
-            if ($ts === false) {
-                continue;
-            }
-
-            // pv_power_rooftop i.d.R. kW
-            $val = (float)$row["pv_power_rooftop"];
-            $series[] = [$ts * 1000, $val];
-        }
-
-        // oft absteigend -> aufsteigend fürs Chart
-        usort($series, function ($a, $b) {
-            return $a[0] <=> $b[0];
-        });
-
-        return $series;
-    }
-
-    private function GetActualSeriesFromArchive(int $startTs, int $endTs, int $bucketSeconds = 1800): array
-    {
-        $varId = (int)$this->ReadPropertyInteger("ActualVariableID");
-        if ($varId <= 0 || !IPS_VariableExists($varId)) {
-            return [];
-        }
-
-        $archiveId = $this->GetArchiveInstanceID();
-        if ($archiveId === 0) {
-            return [];
-        }
-
-        if (!AC_GetLoggingStatus($archiveId, $varId)) {
-            $this->SendDebug("Actual", "Variable wird nicht geloggt im Archiv", 0);
-            return [];
-        }
-
-        // Rohwerte holen
-        $logged = AC_GetLoggedValues($archiveId, $varId, $startTs, $endTs, 0);
-        if (!is_array($logged) || count($logged) === 0) {
-            return [];
-        }
-
-        // Bucket: 30 Minuten
-        $buckets = []; // key=bucketEndTs => [sum, count]
-        foreach ($logged as $row) {
-            if (!isset($row["TimeStamp"], $row["Value"])) {
-                continue;
-            }
-
-            $ts = (int)$row["TimeStamp"];
-
-            // 30min Raster
-            $bucketStart = intdiv($ts, $bucketSeconds) * $bucketSeconds;
-            $bucketEnd = $bucketStart + $bucketSeconds; // wie Solcast period_end
-
-            if ($bucketEnd < $startTs || $bucketEnd > $endTs) {
-                continue;
-            }
-
-            if (!isset($buckets[$bucketEnd])) {
-                $buckets[$bucketEnd] = [0.0, 0];
-            }
-            $buckets[$bucketEnd][0] += (float)$row["Value"];
-            $buckets[$bucketEnd][1] += 1;
-        }
-
-        ksort($buckets);
-
-        $series = [];
-        $isWatt = (bool)$this->ReadPropertyBoolean("ActualIsWatt");
-
-        foreach ($buckets as $bucketEnd => $sc) {
-            $sum = $sc[0];
-            $count = $sc[1];
-            if ($count <= 0) {
-                continue;
-            }
-
-            $avg = $sum / $count;
-
-            // W -> kW, damit es zu Solcast passt
-            if ($isWatt) {
-                $avg = $avg / 1000.0;
-            }
-
-            $series[] = [$bucketEnd * 1000, $avg];
-        }
-
-        return $series;
-    }
-
-    private function GetArchiveInstanceID(): int
-    {
-        $list = IPS_GetInstanceListByModuleID(self::ARCHIVE_GUID);
-        if (is_array($list) && count($list) > 0) {
-            return (int)$list[0];
-        }
-        return 0;
-    }
-
-    // -------- Tile Visualisierung --------
-
     public function GetVisualizationTile(): string
     {
-        // Forecast ggf. initial laden
         if ($this->GetBuffer("ForecastRaw") === "") {
             $this->UpdateForecast();
         }
 
         $html = file_get_contents(__DIR__ . "/module.html");
         $html = str_replace("{{INSTANCE_ID}}", (string)$this->InstanceID, $html);
-
         return $html;
     }
 
-    // -------- WebHook Handler --------
-
     protected function ProcessHookData()
     {
-        // Erwartet: /hook/solcastcompare?instance=12345&action=data
         $instance = isset($_GET["instance"]) ? (int)$_GET["instance"] : 0;
-        $action = isset($_GET["action"]) ? (string)$_GET["action"] : "";
+        $action   = isset($_GET["action"]) ? (string)$_GET["action"] : "";
 
         if ($instance !== $this->InstanceID) {
             http_response_code(404);
             echo "Wrong instance";
             return;
         }
-
         if ($action !== "data") {
             http_response_code(400);
             echo "Unknown action";
             return;
         }
 
-        $end = time();
-        $start = $end - 24 * 3600;
+        // Zeitraum: HEUTE (lokal)
+        $tz = new DateTimeZone(date_default_timezone_get());
+        $startDT = new DateTime('today', $tz);
+        $endDT   = new DateTime('tomorrow', $tz);
 
-        $forecast = $this->GetForecastSeries();
-        $actual = $this->GetActualSeriesFromArchive($start, $end, 1800);
+        $start = $startDT->getTimestamp();
+        $end   = $endDT->getTimestamp();
+        $now   = time();
+
+        $forecast = $this->GetForecastSeriesFiltered($start, $end);
+        $actual   = $this->GetActualSeriesFromArchive($start, $end, 1800, $now);
 
         $out = [
             "meta" => [
                 "forecast_cached_at" => (int)$this->GetBuffer("ForecastTS"),
                 "bucket_seconds" => 1800,
-                "actual_is_watt" => (bool)$this->ReadPropertyBoolean("ActualIsWatt")
+                "actual_is_watt" => (bool)$this->ReadPropertyBoolean("ActualIsWatt"),
+                "start" => $start * 1000,
+                "end" => $end * 1000,
+                "now" => $now * 1000
             ],
             "series" => [
                 "forecast" => $forecast,
@@ -255,34 +124,115 @@ class PV_Forecast extends IPSModule
         echo json_encode($out);
     }
 
-    // -------- optional: Hook automatisch im WebHook Control registrieren --------
-    // Wenn du es bereits manuell eingetragen hast, ist das hier nicht zwingend.
+    private function GetForecastSeriesFiltered(int $startTs, int $endTs): array
+    {
+        $raw = $this->GetBuffer("ForecastRaw");
+        if ($raw === "") return [];
+
+        $data = json_decode($raw, true);
+        if (!is_array($data) || !isset($data["estimated_actuals"]) || !is_array($data["estimated_actuals"])) {
+            return [];
+        }
+
+        $series = [];
+        foreach ($data["estimated_actuals"] as $row) {
+            if (!isset($row["period_end"], $row["pv_power_rooftop"])) continue;
+
+            $ts = strtotime($row["period_end"]); // UTC korrekt
+            if ($ts === false) continue;
+
+            // nur HEUTE (lokal) anzeigen
+            if ($ts < $startTs || $ts >= $endTs) continue;
+
+            // Solcast: kW
+            $val = (float)$row["pv_power_rooftop"];
+            $series[] = [$ts * 1000, $val];
+        }
+
+        usort($series, fn($a, $b) => $a[0] <=> $b[0]);
+        return $series;
+    }
+
+    private function GetActualSeriesFromArchive(int $startTs, int $endTs, int $bucketSeconds, int $nowTs): array
+    {
+        $varId = (int)$this->ReadPropertyInteger("ActualVariableID");
+        if ($varId <= 0 || !IPS_VariableExists($varId)) return [];
+
+        $archiveId = $this->GetArchiveInstanceID();
+        if ($archiveId === 0) return [];
+
+        if (!AC_GetLoggingStatus($archiveId, $varId)) {
+            $this->SendDebug("Actual", "Variable wird nicht geloggt im Archiv", 0);
+            return [];
+        }
+
+        $logged = AC_GetLoggedValues($archiveId, $varId, $startTs, $endTs, 0);
+        if (!is_array($logged) || count($logged) === 0) return [];
+
+        $buckets = []; // bucketEnd => [sum, count]
+        foreach ($logged as $row) {
+            if (!isset($row["TimeStamp"], $row["Value"])) continue;
+
+            $ts = (int)$row["TimeStamp"];
+            $bucketStart = intdiv($ts, $bucketSeconds) * $bucketSeconds;
+            $bucketEnd = $bucketStart + $bucketSeconds;
+
+            if ($bucketEnd < $startTs || $bucketEnd > $endTs) continue;
+
+            if (!isset($buckets[$bucketEnd])) $buckets[$bucketEnd] = [0.0, 0];
+            $buckets[$bucketEnd][0] += (float)$row["Value"];
+            $buckets[$bucketEnd][1] += 1;
+        }
+
+        // Wir wollen ein sauberes 30-Minuten Raster über den ganzen Tag,
+        // aber nach "jetzt" soll die Ist-Linie abbrechen (null).
+        $series = [];
+        $isWatt = (bool)$this->ReadPropertyBoolean("ActualIsWatt");
+
+        for ($t = $startTs + $bucketSeconds; $t <= $endTs; $t += $bucketSeconds) {
+            // Zukunft: null (Linie bricht)
+            if ($t > $nowTs + $bucketSeconds) {
+                $series[] = [$t * 1000, null];
+                continue;
+            }
+
+            if (!isset($buckets[$t]) || $buckets[$t][1] <= 0) {
+                $series[] = [$t * 1000, null];
+                continue;
+            }
+
+            $avg = $buckets[$t][0] / $buckets[$t][1];
+
+            // W -> kW, damit es zu Solcast passt
+            if ($isWatt) $avg = $avg / 1000.0;
+
+            $series[] = [$t * 1000, $avg];
+        }
+
+        return $series;
+    }
+
+    private function GetArchiveInstanceID(): int
+    {
+        $list = IPS_GetInstanceListByModuleID(self::ARCHIVE_GUID);
+        return (is_array($list) && count($list) > 0) ? (int)$list[0] : 0;
+    }
+
     private function RegisterHook(string $Hook)
     {
-        // WebHook Control GUID (kann je nach Version variieren; wenn nicht gefunden -> einfach ignorieren)
         $ids = IPS_GetInstanceListByModuleID("{015A6EB8-D6E5-4B93-B496-0D3FAD4D0E6E}");
-        if (count($ids) === 0) {
-            return;
-        }
+        if (count($ids) === 0) return;
 
         $hookID = (int)$ids[0];
         $hooks = json_decode(IPS_GetProperty($hookID, "Hooks"), true);
-        if (!is_array($hooks)) {
-            $hooks = [];
-        }
+        if (!is_array($hooks)) $hooks = [];
 
-        $found = false;
         foreach ($hooks as $h) {
-            if (isset($h["Hook"]) && $h["Hook"] === $Hook) {
-                $found = true;
-                break;
-            }
+            if (isset($h["Hook"]) && $h["Hook"] === $Hook) return;
         }
 
-        if (!$found) {
-            $hooks[] = ["Hook" => $Hook, "TargetID" => $this->InstanceID];
-            IPS_SetProperty($hookID, "Hooks", json_encode($hooks));
-            IPS_ApplyChanges($hookID);
-        }
+        $hooks[] = ["Hook" => $Hook, "TargetID" => $this->InstanceID];
+        IPS_SetProperty($hookID, "Hooks", json_encode($hooks));
+        IPS_ApplyChanges($hookID);
     }
 }
