diff --git a/config/config.default.yaml b/config/config.default.yaml
index dc04a925..a54309ef 100644
--- a/config/config.default.yaml
+++ b/config/config.default.yaml
@@ -2,7 +2,7 @@
 #
 # SPDX-License-Identifier: CC0-1.0
 
-# docs in 
+# docs in
 version: 0.8.0
 tutorial: false
 
@@ -10,22 +10,22 @@ logging:
   level: INFO
   format: '%(levelname)s:%(name)s:%(message)s'
 
-# docs in 
-run: 
+# docs in
+run:
   name: ""
   disable_progressbar: false
   shared_resources: false
   shared_cutouts: true
 
-# docs in 
+# docs in
 foresight: overnight
 
-# docs in 
-# Wildcard docs in 
-scenario: 
+# docs in
+# Wildcard docs in
+scenario:
   simpl:
   - ''
-  ll:  
+  ll:
   - v1.5
   clusters:
   - 37
@@ -33,7 +33,7 @@ scenario:
   - 256
   - 512
   - 1024
-  opts: 
+  opts:
   - ''
   sector_opts:
   - Co2L0-3H-T-H-B-I-A-solar+p3-dist1
@@ -43,18 +43,16 @@ scenario:
   # - 2040
   - 2050
 
-# docs in 
-countries: ['AL', 'AT', 'BA', 'BE', 'BG', 'CH', 'CZ', 'DE', 'DK', 'EE', 'ES', 
-            'FI', 'FR', 'GB', 'GR', 'HR', 'HU', 'IE', 'IT', 'LT', 'LU', 'LV', 
-            'ME', 'MK', 'NL', 'NO', 'PL', 'PT', 'RO', 'RS', 'SE', 'SI', 'SK']
+# docs in
+countries: ['AL', 'AT', 'BA', 'BE', 'BG', 'CH', 'CZ', 'DE', 'DK', 'EE', 'ES', 'FI', 'FR', 'GB', 'GR', 'HR', 'HU', 'IE', 'IT', 'LT', 'LU', 'LV', 'ME', 'MK', 'NL', 'NO', 'PL', 'PT', 'RO', 'RS', 'SE', 'SI', 'SK']
 
-# docs in 
+# docs in
 snapshots:
   start: "2013-01-01"
   end: "2014-01-01"
   inclusive: 'left'
 
-# docs in 
+# docs in
 enable:
   prepare_links_p_nom: false
   retrieve_databundle: true
@@ -66,7 +64,7 @@ enable:
   retrieve_natura_raster: true
   custom_busmap: false
 
-# docs in 
+# docs in
 co2_budget:
   2020: 0.701
   2025: 0.524
@@ -76,7 +74,7 @@ co2_budget:
   2045: 0.032
   2050: 0.000
 
-# docs in 
+# docs in
 electricity:
   voltages: [220., 300., 380.]
   gaslimit: false
@@ -157,7 +155,7 @@ renewable:
     resource:
       method: wind
       turbine: Vestas_V112_3MW
-    capacity_per_sqkm: 3 
+    capacity_per_sqkm: 3
     # correction_factor: 0.93
     corine:
       grid_codes: [12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 31, 32]
@@ -172,7 +170,7 @@ renewable:
     resource:
       method: wind
       turbine: NREL_ReferenceTurbine_5MW_offshore
-    capacity_per_sqkm: 2 
+    capacity_per_sqkm: 2
     correction_factor: 0.8855
     corine: [44, 255]
     natura: true
diff --git a/doc/configtables/countries.csv b/doc/configtables/countries.csv
index 63dd85b3..6a386416 100644
--- a/doc/configtables/countries.csv
+++ b/doc/configtables/countries.csv
@@ -1,2 +1,2 @@
  ,Unit,Values,Description
-countries,--,"Subset of {'AL', 'AT', 'BA', 'BE', 'BG', 'CH', 'CZ', 'DE', 'DK', 'EE', 'ES', 'FI', 'FR', 'GB', 'GR', 'HR', 'HU', 'IE', 'IT', 'LT', 'LU', 'LV', 'ME', 'MK', 'NL', 'NO', 'PL', 'PT', 'RO', 'RS', 'SE', 'SI', 'SK'}","European countries defined by their `Two-letter country codes (ISO 3166-1) <https://en.wikipedia.org/wiki/ISO_3166-1_alpha-2>`_ which should be included in the energy system model."
\ No newline at end of file
+countries,--,"Subset of {'AL', 'AT', 'BA', 'BE', 'BG', 'CH', 'CZ', 'DE', 'DK', 'EE', 'ES', 'FI', 'FR', 'GB', 'GR', 'HR', 'HU', 'IE', 'IT', 'LT', 'LU', 'LV', 'ME', 'MK', 'NL', 'NO', 'PL', 'PT', 'RO', 'RS', 'SE', 'SI', 'SK'}","European countries defined by their `Two-letter country codes (ISO 3166-1) <https://en.wikipedia.org/wiki/ISO_3166-1_alpha-2>`_ which should be included in the energy system model."
diff --git a/doc/configtables/foresight.csv b/doc/configtables/foresight.csv
index 07f930f2..a19ec139 100644
--- a/doc/configtables/foresight.csv
+++ b/doc/configtables/foresight.csv
@@ -1,2 +1,2 @@
 ,Unit,Values,Description
-foresight,string,"{overnight, myopic, perfect}","See :ref:`Foresight Options` for detail explanations."
\ No newline at end of file
+foresight,string,"{overnight, myopic, perfect}","See :ref:`Foresight Options` for detail explanations."
diff --git a/doc/configtables/sector.csv b/doc/configtables/sector.csv
index 27a69809..6a6fcd0d 100644
--- a/doc/configtables/sector.csv
+++ b/doc/configtables/sector.csv
@@ -4,7 +4,7 @@ district_heating,--,,`prepare_sector_network.py <https://github.com/PyPSA/pypsa-
 -- progress,--,Dictionary with planning horizons as keys.,Progress = 0 means today's district heating share. Progress = 1 means maximum fraction of urban demand is supplied by district heating
 -- district_heating_loss,--,float,
 cluster_heat_buses,--,true or false,cluster residential and service heat buses in `prepare_sector_network.py <https://github.com/PyPSA/pypsa-eur-sec/blob/master/scripts/prepare_sector_network.py>`_  to one to save memory.
-bev_dsm_restriction_value,--,float,Adding a stage of charge (SOC) limit  for battery electric vehicles (BEV) to manage its own energy demand (DSM). Located in `build_transport_demand.py <https://github.com/PyPSA/pypsa-eur-sec/blob/master/scripts/build_transport_demand.py>`_. 
+bev_dsm_restriction_value,--,float,Adding a stage of charge (SOC) limit  for battery electric vehicles (BEV) to manage its own energy demand (DSM). Located in `build_transport_demand.py <https://github.com/PyPSA/pypsa-eur-sec/blob/master/scripts/build_transport_demand.py>`_.
 bev_dsm_restriction_time,--,float,Time at which SOC of BEV has to be dsm_restriction_value
 transport_heating_deadband_upper,°C,float,"The minimum temperature in the vehicle. At lower temperatures, the energy required for heating in the vehicle increases."
 transport_heating_deadband_lower,°C,float,"The maximum temperature in the vehicle. At higher temperatures, the energy required for cooling in the vehicle increases."
diff --git a/doc/configtables/toplevel.csv b/doc/configtables/toplevel.csv
index 9496e165..dcf0f29a 100644
--- a/doc/configtables/toplevel.csv
+++ b/doc/configtables/toplevel.csv
@@ -3,4 +3,4 @@ version,--,0.x.x,"Version of PyPSA-Eur. Descriptive only."
 tutorial,bool,"{true, false}","Switch to retrieve the tutorial data set instead of the full data set."
 logging,,,
 -- level,--,"Any of {'INFO', 'WARNING', 'ERROR'}","Restrict console outputs to all infos, warning or errors only"
--- format,--,"","Custom format for log messages. See `LogRecord <https://docs.python.org/3/library/logging.html#logging.LogRecord>`_ attributes."
\ No newline at end of file
+-- format,--,"","Custom format for log messages. See `LogRecord <https://docs.python.org/3/library/logging.html#logging.LogRecord>`_ attributes."
diff --git a/doc/configuration.rst b/doc/configuration.rst
index a1e0379e..a5de4453 100644
--- a/doc/configuration.rst
+++ b/doc/configuration.rst
@@ -64,7 +64,7 @@ The ``run`` section is used for running and storing scenarios with different con
    :file: configtables/foresight.csv
 
 .. note::
-    if you use myopic or perfect foresight, The investment years in 
+    if you use myopic or perfect foresight, The investment years in
     :ref:`planning_horizons` in scenario has to be set.
 
 .. _scenario:
@@ -173,7 +173,7 @@ Switches for some rules and optional features.
    :file: configtables/co2_budget.csv
 
 .. note::
-    this parameter is over-ridden if ``CO2Lx`` or ``cb`` is set in 
+    this parameter is over-ridden if ``CO2Lx`` or ``cb`` is set in
     sector_opts.
 
 .. _electricity_cf:
@@ -272,7 +272,7 @@ Define and specify the ``atlite.Cutout`` used for calculating renewable potentia
    :file: configtables/offwind-dc.csv
 
 .. note::
-   both ``offwind-ac`` and ``offwind-dc`` have the same assumption on 
+   both ``offwind-ac`` and ``offwind-dc`` have the same assumption on
    ``capacity_per_sqkm`` and ``correction_factor``.
 
 ``solar``
@@ -512,8 +512,8 @@ overwrite the existing values.
    :widths: 25,7,22,30
    :file: configtables/costs.csv
 
-.. note:: 
-   ``rooftop_share:`` are based on the potentials, assuming  
+.. note::
+   ``rooftop_share:`` are based on the potentials, assuming
    (0.1 kW/m2 and 10 m2/person)
 
 .. _clustering_cf:
@@ -531,11 +531,11 @@ overwrite the existing values.
    :widths: 25,7,22,30
    :file: configtables/clustering.csv
 
-.. note:: 
-   ``feature:`` in ``simplify_network:`` 
+.. note::
+   ``feature:`` in ``simplify_network:``
    are only relevant if ``hac`` were chosen in ``algorithm``.
 
-.. tip:: 
+.. tip::
    use ``min`` in ``p_nom_max:`` for more `
    conservative assumptions.