Kako izračunati EV Home Charging Cost
Kaj je 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.
Formula
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
Navodila po korakih
- 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)
Worked Examples
Vnos
Tesla Model 3 (75kWh), 20%→80%, $0.30/kWh
Rezultat
45kWh added, cost $13.50, ~6h 5min charging
Vnos
Nissan Leaf (40kWh), 10%→100%
Rezultat
36kWh, cost $10.80, ~4h 52min
Vnos
Full charge daily, 30kWh needed
Rezultat
$9/day = $270/month at $0.30/kWh
Frequently Asked Questions
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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