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Ako vypočítať EV Home Charging Cost

Čo 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.

Vzorec

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

Sprievodca krok za krokom

  1. 1Energy needed = Battery capacity × (target% − current%) ÷ 100
  2. 2Cost = Energy (kWh) × electricity tariff ($/kWh)
  3. 3Charge time = Energy needed ÷ charger power (kW)
  4. 4Standard home charger: 7.4kW (32A single phase)

Worked Examples

Vstup
Tesla Model 3 (75kWh), 20%→80%, $0.30/kWh
Výsledok
45kWh added, cost $13.50, ~6h 5min charging
Vstup
Nissan Leaf (40kWh), 10%→100%
Výsledok
36kWh, cost $10.80, ~4h 52min
Vstup
Full charge daily, 30kWh needed
Výsledok
$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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