Question 1

How much does it cost to charge an EV at home?

Accepted Answer

Home EV charging costs $0.03-0.05 per mile at the national average electricity rate of $0.138/kWh, assuming an average EV efficiency of 3-4 miles per kWh. For a driver covering 1,000 miles per month, that is $30-50 per month compared to $120-180 for a 30 MPG gas car at $3.60/gallon. Annual savings from home charging vs gas typically range from $900-1,500.

Question 2

Is it cheaper to charge an EV at night?

Accepted Answer

Yes, if your utility offers time-of-use (TOU) pricing. Off-peak rates are typically $0.06-0.10/kWh compared to $0.14-0.20/kWh during peak hours. Charging overnight on a TOU rate can cut your charging cost by 30-50%. Most major EV charger apps and the car's own scheduler let you set off-peak charging automatically.

Question 3

Do I need a Level 2 charger at home?

Accepted Answer

For most drivers, yes. A standard 120V Level 1 outlet adds only 3-5 miles of range per hour, requiring 20+ hours for a full charge. A Level 2 (240V) home charger adds 20-30 miles per hour, fully charging most EVs overnight. Level 2 charger installation costs $400-1,000 including a permit-ready outlet. The 30C Alternative Fuel Vehicle Refueling Credit provides 30% back (up to $1,000) on home charger installation.

EV Home Charging Cost Calculator