diff --git a/config/default.yaml b/config/default.yaml
index 2b13bd7d..c4001502 100644
--- a/config/default.yaml
+++ b/config/default.yaml
@@ -13,6 +13,10 @@ data-sources:
     potentials: https://zenodo.org/record/5112963/files/possibility-for-electricity-autarky.zip
     entsoe-tyndp: https://2020.entsos-tyndp-scenarios.eu/wp-content/uploads/2020/06/TYNDP-2020-Scenario-Datafile.xlsx.zip
     jrc-ppdb: https://zenodo.org/record/3574566/files/JRC-PPDB-OPEN.ver1.0.zip
+    jrc-idees: https://jeodpp.jrc.ec.europa.eu/ftp/jrc-opendata/JRC-IDEES/JRC-IDEES-2015_v1/JRC-IDEES-2015_All_xlsx_{country_code}.zip
+    eurostat-energy-balance: https://raw.githubusercontent.com/calliope-project/euro-calliope-datasets/feature-sector-coupling/eurostat/nrg_bal_c.tsv.gz # FIXME do not use cached data
+    swiss-energy-balance: https://www.bfe.admin.ch/bfe/en/home/versorgung/statistik-und-geodaten/energiestatistiken/gesamtenergiestatistik.exturl.html/aHR0cHM6Ly9wdWJkYi5iZmUuYWRtaW4uY2gvZGUvcHVibGljYX/Rpb24vZG93bmxvYWQvNzUxOQ==.html
+    swiss-industry-energy-balance: https://www.bfe.admin.ch/bfe/en/home/versorgung/statistik-und-geodaten/energiestatistiken/teilstatistiken.exturl.html/aHR0cHM6Ly9wdWJkYi5iZmUuYWRtaW4uY2gvZGUvcHVibGljYX/Rpb24vZG93bmxvYWQvODc4OA==.html
 root-directory: .
 cluster-sync:
     url: euler.ethz.ch
@@ -121,6 +125,28 @@ parameters:
                 proxy: population
     biofuel-efficiency: 0.45
     wind-and-solar-potential-scenario: technical-potential
+    transport:
+        future-vehicle-efficiency-percentile: 0.25 # FIXME Why so low? Why not 0.5?
+        # FIXME road-transport-conversion-factors are redundant, as they are derived using future-vehicle-efficiency-percentile
+        road-transport-conversion-factors: # MWh / mio km 25th percentile efficiency of all countries in 2015 [@Mantzos:2017]
+            light-duty-vehicles: 480
+            heavy-duty-vehicles: 3248 # based on buses
+            coaches-and-buses: 3248
+            passenger-cars: 324
+            motorcycles: 200  # based on passenger car electrical efficiency scaled by relative diesel efficiency
+        names:
+            light-duty-vehicles: Light duty vehicles
+            heavy-duty-vehicles: Heavy duty vehicles
+            coaches-and-buses: Motor coaches, buses and trolley buses
+            passenger-cars: Passenger cars
+            motorcycles: Powered 2-wheelers
+        fill-missing-values:
+            ALB: ['BGR', 'HRV', 'HUN', 'ROU', 'GRC']
+            BIH: ['BGR', 'HRV', 'HUN', 'ROU', 'GRC']
+            MNE: ['BGR', 'HRV', 'HUN', 'ROU', 'GRC']
+            SRB: ['BGR', 'HRV', 'HUN', 'ROU', 'GRC']
+            NOR: ['SWE', 'DNK']
+            CHE: ['DEU', 'AUT', 'FRA', 'ITA']
     entsoe-tyndp:
         scenario: National Trends
         grid: Reference