BYD · 60 kWh battery · 427 km WLTP · from €30,990
Per 100 km
€7
Per year
€1,109
5-yr energy
€5,543
5-yr TCO
€28,186
The BYD Dolphin Comfort consumes around 19.0 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 €7 per 100 km. Over 15,000 km a year that is about €1,109 in electricity. The 60 kWh usable battery delivers 427 km WLTP range; in winter plan for around 307 km between charges.
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Per 100 km
€8
Per year
€1,246
5-yr energy
€6,230
5-yr TCO
€28,874
Blended price per kWh: 0.390 €
Over 15,000 km/year, the BYD Dolphin Comfort saves roughly €729 vs an equivalent petrol car.
Charging the BYD Dolphin Comfort mostly at home costs roughly €995 a year; relying entirely on public DC stations would be about €1,563. A home wallbox is the single biggest lever on running cost.
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After 10 years the EV saves about €7,285 in energy costs.
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The EV emits roughly 56% less CO₂ — 1,356 kg saved per year.
Using the German grid mix (380 g CO₂/kWh), the BYD Dolphin Comfort sits about 56% below an equivalent petrol car — roughly 6,779 kg less CO₂ over 5 years. On a green tariff or home solar it falls further toward zero.
Winter penalty: ~28 % vs WLTP (ADAC and Spritmonitor comparative data).
Among 41 hatchbacks in the dataset.
Segment median: 14.8 kWh/100 km
This model: 19.0 kWh/100 km
Take real-world consumption
We use a year-round real-world figure (~19.0 kWh/100 km, the mean of summer and winter telemetry from ADAC Ecotest and EV-Database) instead of the WLTP headline (15.4 kWh/100 km). In winter we model 21.3 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 % (€13,946), insurance €6,198, maintenance €500/year, energy €5,543.
At 80 % home charging (€0.35/kWh) and 20 % DC fast-charging (€0.55/kWh) with a real-world consumption of 19.0 kWh/100 km, the BYD Dolphin Comfort runs at about €7 per 100 km.
WLTP lists 427 km. In realistic winter conditions (−5 °C, motorway, heater on) a practical figure is 307 km — roughly 28 % below the homologated number.
A 10 → 80 % top-up on the 60 kWh battery takes about 5h 30m on an 11-kW AC wallbox.
With a DC peak of 88 kW, a 10 → 80 % session takes roughly 35 minutes at a high-power charger.
At 15,000 km/year, 80 % home-charging, and average insurance and maintenance, 5-year TCO lands around €28,186 — including depreciation.
A petrol equivalent at 7 L/100 km and €1.75/L runs €12.25 per 100 km — about €5 more than the BYD Dolphin Comfort. Over 15,000 km a year, the EV saves roughly €729.
On the German grid mix (380 g CO₂/kWh) the BYD Dolphin Comfort emits about 1,080 kg CO₂ a year, versus roughly 2,436 kg for an equivalent petrol car — 56% lower, or 1,356 kg saved. Over 5 years that is about 6,779 kg.
Filling the 60 kWh battery on a home wallbox (€0.35/kWh) costs about €21 — good for roughly 427 km WLTP, or 307 km in winter.
At 15,000 km a year with 80% home charging, the BYD Dolphin Comfort's energy cost over 10 years is around €7,285 less than a petrol car's (7 L/100 km at €1.75/L) — before counting depreciation and maintenance.
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). CO₂ comparison: German grid mix 380 g CO₂/kWh (Umweltbundesamt, 2023) for the EV and 2.32 kg CO₂ per litre of petrol for the combustion car — use-phase in both cases. Per-model sources:
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