diff --git a/homeassistant/components/zha/climate.py b/homeassistant/components/zha/climate.py
index 3a0ff6455d22..fc57b46ec34d 100644
--- a/homeassistant/components/zha/climate.py
+++ b/homeassistant/components/zha/climate.py
@@ -200,6 +200,10 @@ class Thermostat(ZhaEntity, ClimateEntity):
             data[ATTR_OCCP_COOL_SETPT] = self._thrm.occupied_cooling_setpoint
         if self._thrm.occupied_heating_setpoint is not None:
             data[ATTR_OCCP_HEAT_SETPT] = self._thrm.occupied_heating_setpoint
+        if self._thrm.pi_heating_demand is not None:
+            data[ATTR_PI_HEATING_DEMAND] = self._thrm.pi_heating_demand
+        if self._thrm.pi_cooling_demand is not None:
+            data[ATTR_PI_COOLING_DEMAND] = self._thrm.pi_cooling_demand
 
         unoccupied_cooling_setpoint = self._thrm.unoccupied_cooling_setpoint
         if unoccupied_cooling_setpoint is not None: