diff --git a/packages/helpermodules/update_config.py b/packages/helpermodules/update_config.py
index c8c627a1c5..2b072475a5 100644
--- a/packages/helpermodules/update_config.py
+++ b/packages/helpermodules/update_config.py
@@ -57,7 +57,7 @@
 
 class UpdateConfig:
 
-    DATASTORE_VERSION = 103
+    DATASTORE_VERSION = 104
 
     valid_topic = [
         "^openWB/bat/config/bat_control_permitted$",
@@ -2635,7 +2635,7 @@ def upgrade(topic: str, payload) -> None:
             if "openWB/optional/et/provider" == topic:
                 return {"openWB/optional/ep/flexible_tariff/provider": decode_payload(payload)}
         self._loop_all_received_topics(upgrade)
-        self.__update_topic("openWB/system/datastore_version", 102)
+        self._append_datastore_version(102)
 
     def upgrade_datastore_103(self) -> None:
         def upgrade(topic: str, payload) -> None:
@@ -2654,4 +2654,18 @@ def upgrade(topic: str, payload) -> None:
                                 })
                                 return {component_topic: config_payload}
         self._loop_all_received_topics(upgrade)
-        self.__update_topic("openWB/system/datastore_version", 103)
+        self._append_datastore_version(103)
+
+    def upgrade_datastore_104(self) -> None:
+        def upgrade(topic: str, payload) -> None:
+            if "openWB/optional/ep/flexible_tariff/provider" == topic:
+                provider = decode_payload(payload)
+                if provider["type"] == "awattar":
+                    if provider["configuration"].get("net") is None:
+                        provider["configuration"]["net"] = False
+                        provider["configuration"]["fix"] = 0.015
+                        provider["configuration"]["proportional"] = 0.03
+                        provider["configuration"]["tax"] = 0.2
+                        return {topic: provider}
+        self._loop_all_received_topics(upgrade)
+        self._append_datastore_version(104)
diff --git a/packages/modules/electricity_pricing/flexible_tariffs/awattar/config.py b/packages/modules/electricity_pricing/flexible_tariffs/awattar/config.py
index 53becd62c8..6758b848a9 100644
--- a/packages/modules/electricity_pricing/flexible_tariffs/awattar/config.py
+++ b/packages/modules/electricity_pricing/flexible_tariffs/awattar/config.py
@@ -1,11 +1,20 @@
 class AwattarTariffConfiguration:
-    def __init__(self, country: str = "de"):
+    def __init__(self,
+                 country: str = "de",
+                 net: bool = True,
+                 fix: float = 0.015,
+                 proportional: float = 3,
+                 tax: float = 20) -> None:
         self.country = country
+        self.net = net
+        self.fix = fix
+        self.proportional = proportional
+        self.tax = tax
 
 
 class AwattarTariff:
     def __init__(self,
-                 name: str = "aWATTar Hourly",
+                 name: str = "aWATTar/tado° HOURLY",
                  type: str = "awattar",
                  official: bool = True,
                  configuration: AwattarTariffConfiguration = None) -> None:
diff --git a/packages/modules/electricity_pricing/flexible_tariffs/awattar/tariff.py b/packages/modules/electricity_pricing/flexible_tariffs/awattar/tariff.py
index 7fa7e0155c..63d9aa9465 100644
--- a/packages/modules/electricity_pricing/flexible_tariffs/awattar/tariff.py
+++ b/packages/modules/electricity_pricing/flexible_tariffs/awattar/tariff.py
@@ -37,6 +37,9 @@ def fetch_prices(config: AwattarTariffConfiguration) -> Dict[int, float]:
     prices: Dict[int, float] = {}
     for data in raw_prices:
         formatted_price = data["marketprice"]/1000000  # €/MWh -> €/Wh
+        if config.net is False:
+            formatted_price = formatted_price + (formatted_price * config.proportional / 100) + config.fix
+            formatted_price = formatted_price * (1 + config.tax / 100)
         timestamp = data["start_timestamp"]/1000  # Epoch from ms in s
         prices.update({str(int(timestamp)): formatted_price})
     return prices