What Does Electricity Really Cost for an EV?
Charging costs are the most important variable cost factor for an electric car. But unlike combustion engines, where the price per liter is clearly visible at the gas station, electricity costs vary considerably depending on the charging source. Between cheap home charging and expensive fast charging stations, the cost per kilometer can double.
Home Charging: The Cheapest Way
Those who charge at home at a wallbox benefit from the lowest costs. The average household electricity price in Germany in 2026 is about 35 cents per kilowatt-hour. With typical EV consumption of 18 kWh per 100 kilometers, costs are only EUR 6.30 per 100 km, or 6.3 cents per kilometer.
A wallbox for home including installation typically costs EUR 800 to 2,000. With annual savings of EUR 600 to 800 compared to public charging, the investment pays for itself in just 1 to 2 years. Most wallboxes charge at 11 kW, meaning a full charge from 20% to 80% (typical 40 kWh) takes about 3.5 hours — perfect overnight.
Even Cheaper with Solar Panels
Those with their own PV system on the roof can generate part of their electricity needs. The cost of solar electricity is 8 to 12 cents per kWh. In practice, 30 to 50% of charging needs can be covered by your own PV system, especially in summer and with a home battery storage.
A calculation example: With 50% solar electricity (10 ct/kWh) and 50% grid electricity (35 ct/kWh), the average price is 22.5 ct/kWh. That is only EUR 4.05 per 100 km. Compared to a petrol car (EUR 12.25/100km), this saves over 67% on energy costs.
Public Charging: Prices and Pitfalls
At public charging stations, prices vary widely depending on the provider, charging power, and tariff model. An overview of typical 2026 prices:
AC charging stations (11-22 kW, alternating current) cost between EUR 0.45 and 0.55 per kWh. DC fast chargers (50-150 kW) are at EUR 0.55 to 0.69 per kWh. HPC ultra-fast chargers (150-350 kW) at highway rest stops cost EUR 0.65 to 0.79 per kWh.
At 18 kWh/100km and a fast charging price of EUR 0.65/kWh, each kilometer costs 11.7 cents. This is almost at the level of an economical petrol car. Those who frequently use fast chargers lose most of the cost advantage over the combustion engine.
Comparing Charging Cards and Tariffs Pays Off
Choosing the right charging tariff can save hundreds of euros per year. There are two models: tariffs without monthly fees (higher kWh price, good for occasional chargers) and tariffs with monthly fees (lower kWh price, worthwhile for frequent drivers).
Recommendation: Use at least two charging cards for different networks. ADAC e-Charge, EnBW mobility+, and Maingau EinfachStromLaden offer good rates without monthly fees. For frequent drivers, a subscription tariff with major networks pays off.
The Optimal Charging Mix
Most EV drivers charge 60 to 80 percent at home and the rest on the road. This mix is economically optimal. Those who charge 70% at home (35 ct/kWh) and 30% publicly (55 ct/kWh) arrive at an average price of 41 ct/kWh — that is EUR 7.38 per 100 km. Significantly cheaper than any combustion engine.
Bottom line: The key to economical e-mobility is the ability to charge at home. Those who can charge at home drive significantly cheaper with an EV than with a combustion car. Those who rely exclusively on public chargers should carefully calculate whether switching makes financial sense.
