8. Driving economics

  • The efficiency of an electric car per 100 km is approximately 85% (75% including charging losses).
  • The efficiency of a car with an internal combustion engine per 100 km is approximately 20%.

  • Thanks to electricity prices (absence of excise duty) and high efficiency of electric drive, the driving economy of electric vehicles is the most favorable of all types of drives.
  • However, electricity prices are rising.

Marathon runner                                        Car with petrol engine                      BEV (all season average)


Example

  • Consumption - middle class passenger car: winter 26 kWh / 100km, summer 14 kWh / 100km, average 20 kWh / 100km.
  • At an electricity price of CZK 4 / kWh, the cost per 1 km of driving is based on:
    • 1,04 Kč/km in winter,
    • 0,56 Kč/km in summer,
    • 0,80 Kč/km in average.
  • At an electricity price of CZK 6 / kWh,  the cost per 1 km of driving is based on:
    • 1,56 Kč/km in winter,
    • 0,84 Kč/km in summer,
    • 1,20 Kč/km in average.

  • However, the price of electricity may vary at public charging stations.
  • Especially fast charging is problematic due to
    • high losses,
    • higher energy prices (9 up to 20 CZK / kWh).