diff --git a/homeassistant/components/zha/core/channels/smartenergy.py b/homeassistant/components/zha/core/channels/smartenergy.py
index 7b12411b84f..9138ea09782 100644
--- a/homeassistant/components/zha/core/channels/smartenergy.py
+++ b/homeassistant/components/zha/core/channels/smartenergy.py
@@ -3,7 +3,7 @@ import logging
 
 import zigpy.zcl.clusters.smartenergy as smartenergy
 
-from homeassistant.const import LENGTH_FEET, TIME_HOURS, TIME_SECONDS
+from homeassistant.const import LENGTH_FEET, POWER_WATT, TIME_HOURS, TIME_SECONDS
 from homeassistant.core import callback
 
 from .. import registries, typing as zha_typing
@@ -60,7 +60,7 @@ class Metering(ZigbeeChannel):
     REPORT_CONFIG = [{"attr": "instantaneous_demand", "config": REPORT_CONFIG_DEFAULT}]
 
     unit_of_measure_map = {
-        0x00: "kW",
+        0x00: POWER_WATT,
         0x01: f"m³/{TIME_HOURS}",
         0x02: f"{LENGTH_FEET}³/{TIME_HOURS}",
         0x03: f"ccf/{TIME_HOURS}",
@@ -135,6 +135,12 @@ class Metering(ZigbeeChannel):
 
     def formatter_function(self, value):
         """Return formatted value for display."""
+        if self.unit_of_measurement == POWER_WATT:
+            # Zigbee spec power unit is kW, but we show the value in W
+            value_watt = value * 1000
+            if value_watt < 100:
+                return round(value_watt, 1)
+            return round(value_watt)
         return self._format_spec.format(value).lstrip()