Як розрахувати EV Home Charging Cost
Що таке EV Home Charging Cost?
An EV home charging cost calculator estimates the electricity cost and time to charge an electric vehicle at home from a given battery level to a target level, using a standard 7.4kW home charger.
Формула
cost_per_charge = battery_kwh × electricity_rate ($/kWh); cost_per_mile = cost_per_charge / range_miles
- kwh
- Battery size (kWh) — Vehicle battery capacity (e.g., 60 kWh)
- rate
- Electricity rate ($/kWh) — Grid electricity price (typically 0.12–0.18 $/kWh)
- range
- Range (miles) — Miles per full charge
- cost
- Cost per charge ($) — Total to fully charge battery
Покрокова інструкція
- 1Energy needed = Battery capacity × (target% − current%) ÷ 100
- 2Cost = Energy (kWh) × electricity tariff ($/kWh)
- 3Charge time = Energy needed ÷ charger power (kW)
- 4Standard home charger: 7.4kW (32A single phase)
Розв'язані приклади
Введення
Tesla Model 3 (75kWh), 20%→80%, $0.30/kWh
Результат
45kWh added, cost $13.50, ~6h 5min charging
Введення
Nissan Leaf (40kWh), 10%→100%
Результат
36kWh, cost $10.80, ~4h 52min
Введення
Full charge daily, 30kWh needed
Результат
$9/day = $270/month at $0.30/kWh
Часті запитання
How much does it cost to charge an EV?
60 kWh battery × $0.14/kWh = $8.40 full charge. At 250 mi range = $0.034/mile fuel cost (vs. gas: $0.10–0.15/mile).
What about charging at home vs. public chargers?
Home (Level 2): cheapest (~$0.12/kWh). Public DC fast chargers: 2–3× more ($0.30+/kWh) but faster.
Is there a federal EV tax credit?
US: up to $7,500 for new EVs (income/price caps apply). Some states add rebates. Check eligibility.
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