How to calculate the break-even point of electric cars and vehicles as compared to normal diesel or petrol.

 
  • The orange line of the graph represents the cost of buying an electric vehicle and the cost of electricity over the years.
  • The blue line of the graph represents the cost of buying a diesel vehicle and the cost of diesel fuel over the years

Parameters for calculating the break-even point of an electric vehicle

Electric vehicle price
Batteries set price
Batteries year life
 
Diesel vehicle price
   
 
How I will use the vehicle in the coming years ?
Hours per day   
Days a week
Months a year

Vehicle hours of use per year: 1.196



Break Even Point electric cars
    Electric vehicle Diesel vehicle
2012 € 18.000 € 16.000
2013 € 18.502 € 19.903
2014 € 19.005 € 23.806
2015 € 19.507 € 27.708
2016 € 23.010 € 31.611
2017 € 23.512 € 35.514
2018 € 24.015 € 39.417
2019 € 24.517 € 43.319
2020 € 28.019 € 47.222
2021 € 28.522 € 51.125
2022 € 29.024 € 55.028


The results show that at the moment of purchase, the cost of the electric vehicle is actually higher than the fossil fuel-engine vehicle, but starting in the second year, because of the high cost of fuel, running an electric vehicle costs considerably less.

Factors lowering the break-even point of electric cars:

  • High performance of electric motors: the separate excitation electric engines used in Alke' electric vehicles have a theoretical energy output of 85%, and this is what began to make a really noteworthy result possible.
  • Energy recovery while braking. Whilst braking, the 6 kW (17,5 kW at its peak) separate excitation electric engines of the Alkè ATX vehicles transform themselves into dynamos and generate energy. This energy, which would otherwise be lost through the heat of the braking action, is sent to the traction batteries. The result is that the electric vehicle uses 30% less energy, the battery lasts longer and the general energy performance is higher.
  • Low running and maintenance costs. In general, the maintenance costs of electric vehicles is much lower than that of an equivalent diesel or petrol vehicle.

Break Even Point electric carsBreak-even point of electric vehicles: the typical curve of the break-even point (bep) graph of electric cars is a step graph, as evidenced by the yellow line in the graph to the left.  The cost line is almost horizontal as the amount of electrical energy used is very low. Energy waste has been reduced to a minimum, and the energy used by a set of batteries during an entire day’s work is the equivalent of 1.1 litres of petrol. With this small amount of energy one can transport up to 600 kg for from 70 to 90 km – a cost efficiency result that one could never obtain using a standard petrol-run vehicle.  The step upwards in the graph represents the cost of the batteries, which should be replaced every 4 years or so.

For further details about the break-even point (bep) calculation please write us a brief note:







Energy costs used for the various bep calculations
Electricity costs: 0.21 € kWh *
Diesel fuel costs: 1.74 € liter *

 

(*)   Cost sources for the petrol/electricity: Prices applied in the Italian market in April 2010, the vehicle prices do not include VAT.

(**) The calculation is purely indicative, the data reported here may no longer apply to current fuel costs.

 

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