diff --git a/homeassistant/components/switch/vesync.py b/homeassistant/components/switch/vesync.py
index fbc73545e19..d8579a508e2 100644
--- a/homeassistant/components/switch/vesync.py
+++ b/homeassistant/components/switch/vesync.py
@@ -60,6 +60,8 @@ class VeSyncSwitchHA(SwitchDevice):
     def __init__(self, plug):
         """Initialize the VeSync switch device."""
         self.smartplug = plug
+        self._current_power_w = None
+        self._today_energy_kwh = None
 
     @property
     def unique_id(self):
@@ -74,12 +76,12 @@ class VeSyncSwitchHA(SwitchDevice):
     @property
     def current_power_w(self):
         """Return the current power usage in W."""
-        return self.smartplug.get_power()
+        return self._current_power_w
 
     @property
     def today_energy_kwh(self):
         """Return the today total energy usage in kWh."""
-        return self.smartplug.get_kwh_today()
+        return self._today_energy_kwh
 
     @property
     def available(self) -> bool:
@@ -102,3 +104,5 @@ class VeSyncSwitchHA(SwitchDevice):
     def update(self):
         """Handle data changes for node values."""
         self.smartplug.update()
+        self._current_power_w = self.smartplug.get_power()
+        self._today_energy_kwh = self.smartplug.get_kwh_today()