Home EV Charger Payback

Calculate how fast home charging savings repay your EV charger installation. Enter the installed cost and your per-kWh savings versus public charging, then optionally adjust monthly kWh usage to see monthly savings, annual savings, and the payback period.

All-in cost for hardware, permits, and electrician labor.
Difference between public charger price and your home rate after taxes and fees.
Defaults to 200 kWh/month if blank. Adjust for your driving and efficiency.

Estimates only; verify charger pricing, utility tariffs, and public charging rates for your location before purchasing.

Examples

  • $1,200.00 install cost, $0.18 per kWh savings, default 200 kWh/month ⇒ Monthly savings: $36.00 USD | Annual savings: $432.00 USD | 33.33 months to recover install cost.
  • $2,000.00 install cost, $0.25 per kWh savings, 300 kWh/month ⇒ Monthly savings: $75.00 USD | Annual savings: $900.00 USD | 26.67 months to recover install cost.

FAQ

Should I include tax credits?

Yes. Subtract credits or utility rebates from the installation cost before running the calculator so payback reflects your net outlay.

How do demand charges affect this?

If your utility adds EV demand charges, include them in the home rate when computing the per-kWh savings input.

Can I model solar-powered charging?

Use your solar marginal rate (often near $0.00) in the per-kWh savings input to see accelerated payback when charging from excess generation.

Additional Information

  • Savings per kWh compares the advertised public charger rate with your effective home electricity rate, including taxes and time-of-use adjustments.
  • Monthly savings multiply your expected charging volume by the per-kWh savings, assuming steady driving patterns.
  • Payback months divide the installation cost by monthly savings; lower usage or tiny savings stretch the timeline.
  • Leaving usage blank defaults to 200 kWh/month, roughly 600–800 miles for many EVs.

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