diff --git a/app/components/evse.tsx b/app/components/evse.tsx
index 36ce413..1ef8d94 100644
--- a/app/components/evse.tsx
+++ b/app/components/evse.tsx
@@ -16,7 +16,8 @@ import { SendStatusNotification } from '../service/ocpp/command/status-notificat
 import Transaction from './transaction';
 import MeterValue from './meter.value';
 
-const defaultValue = 'ws://localhost:8080/ocpp/JwNpTpPxPm/CHR202305102';
+const defaultValue =
+  'ws://localhost:8180/steve/websocket/CentralSystemService/ch123';
 const connectorId = 1;
 export default function Evse() {
   const [url, setUrl] = useState(defaultValue);
diff --git a/app/service/ocpp/command/meter-value/meter.value.ts b/app/service/ocpp/command/meter-value/meter.value.ts
index edff022..09101df 100644
--- a/app/service/ocpp/command/meter-value/meter.value.ts
+++ b/app/service/ocpp/command/meter-value/meter.value.ts
@@ -9,10 +9,15 @@ function SendMeterValue(w: IWriter, connectorId: number, value: number): void {
     connectorId,
     meterValue: [
       {
-        context: 'Sample.Periodic',
-        value: value,
-        unit: 'W',
-        measurand: 'Power.Active.Import',
+        timestamp: new Date(),
+        sampledValue: [
+          {
+            context: 'Sample.Periodic',
+            value: value,
+            unit: 'W',
+            measurand: 'Power.Active.Import',
+          },
+        ],
       },
     ],
   };