From eccf8c76fd9219d6d9321c4b0e8522dcee4e9d23 Mon Sep 17 00:00:00 2001
From: Shay Levy <levyshay1@gmail.com>
Date: Sat, 12 Mar 2022 22:21:45 +0200
Subject: [PATCH] Fix Shelly EM/3EM invalid energy value after reboot (#68052)

---
 homeassistant/components/shelly/sensor.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/homeassistant/components/shelly/sensor.py b/homeassistant/components/shelly/sensor.py
index 21a7447e2b2..7e19b9724d7 100644
--- a/homeassistant/components/shelly/sensor.py
+++ b/homeassistant/components/shelly/sensor.py
@@ -174,6 +174,7 @@ SENSORS: Final = {
         value=lambda value: round(value / 1000, 2),
         device_class=SensorDeviceClass.ENERGY,
         state_class=SensorStateClass.TOTAL_INCREASING,
+        available=lambda block: cast(int, block.energy) != -1,
     ),
     ("emeter", "energyReturned"): BlockSensorDescription(
         key="emeter|energyReturned",
@@ -182,6 +183,7 @@ SENSORS: Final = {
         value=lambda value: round(value / 1000, 2),
         device_class=SensorDeviceClass.ENERGY,
         state_class=SensorStateClass.TOTAL_INCREASING,
+        available=lambda block: cast(int, block.energyReturned) != -1,
     ),
     ("light", "energy"): BlockSensorDescription(
         key="light|energy",