diff --git a/homeassistant/components/energy/sensor.py b/homeassistant/components/energy/sensor.py
index b2b29760e5e..7518b163f3c 100644
--- a/homeassistant/components/energy/sensor.py
+++ b/homeassistant/components/energy/sensor.py
@@ -226,6 +226,8 @@ class EnergyCostSensor(SensorEntity):
     """
 
     _attr_entity_registry_visible_default = False
+    _attr_should_poll = False
+
     _wrong_state_class_reported = False
     _wrong_unit_reported = False