suv
400 km
BYD Tang EV
BYD · 86 kWh · 400 km WLTP
Nio · 100 kWh battery · 509 km WLTP · from €74,900
Per 100 km
€11
Per year
€1,577
5-yr energy
€7,883
5-yr TCO
€59,068
The Nio ES7 consumes around 27.0 kWh per 100 km in real-world use. Charging 80% at home (0.35 €/kWh) and 20% at public DC stations (0.55 €/kWh) works out to €11 per 100 km. Over 15,000 km a year that is about €1,577 in electricity. The 100 kWh usable battery delivers 509 km WLTP range; in winter plan for around 366 km between charges.
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Per 100 km
€12
Per year
€1,767
5-yr energy
€8,834
5-yr TCO
€60,019
Blended price per kWh: 0.390 €
Over 15,000 km/year, the Nio ES7 saves roughly €261 vs an equivalent petrol car.
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Winter penalty: ~28 % vs WLTP (ADAC and Spritmonitor comparative data).
Among 127 SUVs in the dataset.
Segment median: 17.5 kWh/100 km
This model: 27.0 kWh/100 km
Take real-world consumption
We use a year-round real-world figure (~27.0 kWh/100 km, the mean of summer and winter telemetry from ADAC Ecotest and EV-Database) instead of the WLTP headline (21.9 kWh/100 km). In winter we model 30.2 kWh/100 km separately.
Weight the electricity price
Defaults: 80 % home (€0.35/kWh) and 20 % DC fast (€0.55/kWh). Adjustable in the calculator.
Compute cost per 100 km
kWh/100 km × blended €/kWh = cost per 100 km.
Scale to annual mileage
Default 15,000 km/year: cost/100 km × 150 = annual energy cost.
Add 5-year TCO components
Depreciation 45 % (€33,705), insurance €14,980, maintenance €500/year, energy €7,883.
At 80 % home charging (€0.35/kWh) and 20 % DC fast-charging (€0.55/kWh) with a real-world consumption of 27.0 kWh/100 km, the Nio ES7 runs at about €11 per 100 km.
WLTP lists 509 km. In realistic winter conditions (−5 °C, motorway, heater on) a practical figure is 366 km — roughly 28 % below the homologated number.
A 10 → 80 % top-up on the 100 kWh battery takes about 7h 29m on an 11-kW AC wallbox.
With a DC peak of 130 kW, a 10 → 80 % session takes roughly 30 minutes at a high-power charger.
At 15,000 km/year, 80 % home-charging, and average insurance and maintenance, 5-year TCO lands around €59,068 — including depreciation.
A petrol equivalent at 7 L/100 km and €1.75/L runs €12.25 per 100 km — about €2 more than the Nio ES7. Over 15,000 km a year, the EV saves roughly €261.
Core formula: consumption (kWh/100 km) × blended €/kWh = cost per 100 km. Depreciation 45 % over 5 years, insurance 4 % of MSRP/yr, maintenance €500/yr (EV average). Per-model sources:
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