diff --git a/scripts/add_brownfield.py b/scripts/add_brownfield.py
index 25922640..dc782838 100644
--- a/scripts/add_brownfield.py
+++ b/scripts/add_brownfield.py
@@ -3,7 +3,9 @@
 #
 # SPDX-License-Identifier: MIT
 
-"""Prepares brownfield data from previous planning horizon."""
+"""
+Prepares brownfield data from previous planning horizon.
+"""
 
 import logging
 
diff --git a/scripts/add_existing_baseyear.py b/scripts/add_existing_baseyear.py
index e074be43..a81d606d 100644
--- a/scripts/add_existing_baseyear.py
+++ b/scripts/add_existing_baseyear.py
@@ -3,7 +3,10 @@
 #
 # SPDX-License-Identifier: MIT
 
-"""Adds existing power and heat generation capacities for initial planning horizon."""
+"""
+Adds existing power and heat generation capacities for initial planning
+horizon.
+"""
 
 import logging
 
diff --git a/scripts/build_cop_profiles.py b/scripts/build_cop_profiles.py
index 510c8a7a..fa04e4a1 100644
--- a/scripts/build_cop_profiles.py
+++ b/scripts/build_cop_profiles.py
@@ -7,7 +7,7 @@
 Build coefficient of performance (COP) time series for air- or ground-sourced
 heat pumps.
 
-The COP is a function of the temperature difference between 
+The COP is a function of the temperature difference between
 source and sink.
 
 The quadratic regression used is based on Staffell et al. (2012)
diff --git a/scripts/build_retro_cost.py b/scripts/build_retro_cost.py
index 88f85517..9dafaf0d 100644
--- a/scripts/build_retro_cost.py
+++ b/scripts/build_retro_cost.py
@@ -5,9 +5,9 @@
 # SPDX-License-Identifier: MIT
 
 """
-This script calculates the space heating savings through better
-insulation of the thermal envelope of a building and corresponding costs for
-different building types in different countries.
+This script calculates the space heating savings through better insulation of
+the thermal envelope of a building and corresponding costs for different
+building types in different countries.
 
 Methodology
 -----------