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> It is the electric car with the lowest consumption (12.5 kW / 100 km) That is actually one of my pet peeves ... some basic math gives you: 12.5 kWh/100km *
by fho 2y ago
> It is the electric car with the lowest consumption (12.5 kW / 100 km)
That is actually one of my pet peeves ... some basic math gives you:
12.5 kWh/100km * 0.4-0.8 €/kW = 5-10 €/100km [1]
12.5 kWh/100km * 393g CO2eq/kWh = 4.913 kg/100km [2]
Now compare that to the Toyota Corolla (Hybrid) that he originally looked at:
4.5 l/100km * 1.6-1.8 €/l = 7-8 €/100km [3]
4.5 l/100km * 2.237 kg/l = 10.7 kg/100km
There are some assumptions that tilt this calculations into the EVs favor though:
1. Charging is never 100% efficient, more likely around 90%.
2. That number is based on E5 fuel, E10 takes some of that off as well.
3. 12.5 kWh/100km is what is given by Tesla, independent tests e.g. by ADAC (German Car "Club") cites 17.2 kWh or 18.6 kWh.
So overall the numbers shift a lot towards the hybrid:
(18.6/0.9) kWh/100km * 0.4-0.8 €/kWh = 8-17 €/100km
(assuming 90% charging efficiency)
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[1] Common price for electricity in German households, better if you have solar, much worse if you have to buy for 0.6-0.8 €/kW at public chargers.
[2] Based on CO2 emmisions in Germany, averaged over a year https://app.electricitymaps.com/zone/DE/12mo/monthly https://app.electricitymaps.com/zone/DE/12mo/monthly ... better in summer (solar), worse in winter (coal).
[3] High price for E10 in Germany, more likely 1.6-1.7€/l