diff --git a/.env.example b/.env.example
new file mode 100644
index 0000000..eb63b08
--- /dev/null
+++ b/.env.example
@@ -0,0 +1,30 @@
+# Telegram
+
+TELEGRAM_BOT_TOKEN = 
+TELEGRAM_personA_chat_id = 
+TELEGRAM_personB_chat_id = 
+
+# MQTT
+MQTT_BROKER = "192.168.103.44"
+
+# ha_connection
+HA_AUTHORIZATION =  
+HA_URL = http://192.168.103.44:8123/api/states/
+
+# weather
+WEATHER_LONG = 9.030724
+WEATHER_LAT = 51.500005
+
+# tibber
+TIBBER_ACCESS_TOKEN = 
+
+# inverter
+INVERTER.URL = 192.168.178.7
+
+# solcast
+SOLCAST_API_KEY  = ''
+LONGITUDE = 9.030724
+LATITUDE = 51.500005
+DECLINATION = 35
+AZIMUTH = 160
+KWP = 5.67
diff --git a/minutely.py b/minutely.py
index 9277261..a9b1fd1 100644
--- a/minutely.py
+++ b/minutely.py
@@ -47,7 +47,7 @@ def battery():
                 
         if mybattery.getPVProduction() < mybattery.getTotalHomeConsumption():
             print('Consumption is higher than production')
-            if hourly_values[current_hour]['load_battery'] == None: 
+            if hourly_values[current_hour]['load_battery'] is None: 
                 print(timestamp,'energy is neither expensive nor cheap. Hold SOC')
                 mybattery.load_battery_1min(0)
         else: