diff --git a/examples/main.py b/examples/main.py
index b95a137..3db8ad3 100644
--- a/examples/main.py
+++ b/examples/main.py
@@ -1,4 +1,5 @@
 """Test-module for pyCheckwatt."""
+
 import argparse
 import json
 import os
diff --git a/pycheckwatt/__init__.py b/pycheckwatt/__init__.py
index 7b065cb..e014623 100644
--- a/pycheckwatt/__init__.py
+++ b/pycheckwatt/__init__.py
@@ -31,6 +31,7 @@
 
 _LOGGER = logging.getLogger(__name__)
 
+
 class CheckwattManager:
     """CheckWatt manager."""
 
@@ -288,7 +289,6 @@ async def get_customer_details(self):
         except (ClientResponseError, ClientError) as error:
             return await self.handle_client_error(endpoint, headers, error)
 
-
     async def get_battery_peak_data(self):
         """Fetch battery peak data from CheckWatt."""
         try:
@@ -332,8 +332,12 @@ async def get_battery_peak_data(self):
                         self.battery_charge_peak_ac = charging_meter.get("PeakAcKw")
                         print(self.battery_charge_peak_ac)
                         self.battery_charge_peak_dc = charging_meter.get("PeakDcKw")
-                        self.battery_discharge_peak_ac = discharging_meter.get("PeakAcKw")
-                        self.battery_discharge_peak_dc = discharging_meter.get("PeakDcKw")
+                        self.battery_discharge_peak_ac = discharging_meter.get(
+                            "PeakAcKw"
+                        )
+                        self.battery_discharge_peak_dc = discharging_meter.get(
+                            "PeakDcKw"
+                        )
 
                     return True
 
@@ -347,26 +351,25 @@ async def get_battery_peak_data(self):
         except (ClientResponseError, ClientError) as error:
             return await self.handle_client_error(endpoint, headers, error)
 
-
-
-
     async def get_fcrd_month_net_revenue(self):
         """Fetch FCR-D revenues from checkwatt."""
         misseddays = 0
         try:
             from_date = datetime.now().strftime("%Y-%m-01")
             to_date = datetime.now() + timedelta(days=1)
-#            to_date = datetime.now()
+            #            to_date = datetime.now()
             to_date = to_date.strftime("%Y-%m-%d")
             lastday_date = datetime.now() + relativedelta(months=1)
-            lastday_date = datetime(year=lastday_date.year, month=lastday_date.month, day=1)
+            lastday_date = datetime(
+                year=lastday_date.year, month=lastday_date.month, day=1
+            )
 
             lastday_date = lastday_date - timedelta(days=1)
 
             lastday = lastday_date.strftime("%d")
 
             dayssofar = datetime.now()
-#            dayssofar = datetime.now() + timedelta(days=1)
+            #            dayssofar = datetime.now() + timedelta(days=1)
             dayssofar = dayssofar.strftime("%d")
 
             daysleft = int(lastday) - int(dayssofar)
@@ -391,8 +394,9 @@ async def get_fcrd_month_net_revenue(self):
                 dayswithmoney = int(dayssofar) - int(misseddays)
                 if response.status == 200:
                     self.dailyaverage = self.revenuemonth / int(dayswithmoney)
-                    self.monthestimate = ((self.dailyaverage * daysleft)
-                    + self.revenuemonth)
+                    self.monthestimate = (
+                        self.dailyaverage * daysleft
+                    ) + self.revenuemonth
                     return True
 
                 _LOGGER.error(
@@ -790,7 +794,12 @@ def battery_peak_data(self):
         if self.battery_discharge_peak_dc is not None:
             battery_discharge_peak_dc = self.battery_discharge_peak_dc
 
-        return battery_charge_peak_ac,battery_charge_peak_dc,battery_discharge_peak_ac,battery_discharge_peak_dc
+        return (
+            battery_charge_peak_ac,
+            battery_charge_peak_dc,
+            battery_discharge_peak_ac,
+            battery_discharge_peak_dc,
+        )
 
     @property
     def electricity_provider(self):
@@ -864,16 +873,16 @@ def fcrd_today_net_revenue(self):
 
         return revenue
 
-#    @property
-#    def tomorrow_revenue(self):
-#        """Property for tomorrow's revenue."""
-#        revenue = 0
-#        if self.revenue is not None:
-#            if len(self.revenue) > 1:
-#                if "NetRevenue" in self.revenue[1]:
-#                    revenue = self.revenue[1]["NetRevenue"]
+    #    @property
+    #    def tomorrow_revenue(self):
+    #        """Property for tomorrow's revenue."""
+    #        revenue = 0
+    #        if self.revenue is not None:
+    #            if len(self.revenue) > 1:
+    #                if "NetRevenue" in self.revenue[1]:
+    #                    revenue = self.revenue[1]["NetRevenue"]
 
-#        return revenue
+    #        return revenue
 
     def _get_meter_total(self, meter_type):
         """Solar, Charging, Discharging, EDIEL_E17, EDIEL_E18, Soc meter summary."""
diff --git a/pycheckwatt/const.py b/pycheckwatt/const.py
index 210828c..25d6de7 100644
--- a/pycheckwatt/const.py
+++ b/pycheckwatt/const.py
@@ -1,4 +1,5 @@
 """Docstring."""
+
 SENSOR = "SENSOR"
 
 
diff --git a/setup.py b/setup.py
index d9bd158..2dc9e20 100644
--- a/setup.py
+++ b/setup.py
@@ -1,4 +1,5 @@
 """Setup script for pyCheckwatt module."""
+
 from setuptools import find_packages, setup
 
 MIN_PY_VERSION = "3.10"