SolarCalculator4U.com
Smart Solar Power Estimator
Discover exactly how much you save by driving an Electric Vehicle. Works for USA 🇺🇸, Europe 🇪🇺 and China 🇨🇳 — with local electricity rates, km/miles toggle, CO₂ savings, and payback period.
📍 Quick-select your region
💡 Tip: Average US electricity rate is ~$0.15/kWh. A typical EV gets ~3.5 mi/kWh. Gas averages ~25 MPG nationally.
Yearly Fuel Savings
Money kept in your pocket every year.
Monthly Gas
$170
Monthly EV
$52
Monthly Savings
$118
📊 5-Year Cost Comparison
🌱 CO₂ Saved Per Year
3,496 kg
≈ 166 trees worth of carbon/year
USA
⚡ $0.15/kWh · ⛽ $3.50/gal
~$1,400/yr
Savings vary by state; California & Hawaii electricity is pricier.
Germany
⚡ €0.40/kWh · ⛽ €1.93/L
~€1,300/yr
High electricity costs but also high petrol taxes make EVs viable.
France
⚡ €0.25/kWh · ⛽ €2.05/L
~€1,800/yr
Nuclear power keeps rates low — one of Europe's best EV markets.
UK
⚡ £0.26/kWh · ⛽ £1.58/L
~£1,400/yr
Octopus & OVO off-peak tariffs go as low as £0.07/kWh overnight.
China
⚡ ¥0.97/kWh · ⛽ ¥8.20/L
~¥14,000/yr
World's largest EV market. BYD & NIO lead in efficiency.
Netherlands
⚡ €0.36/kWh · ⛽ €2.00/L
~€1,200/yr
Dense public charging network. Home charging is most affordable.
US EV drivers typically save $1,000–$2,500 per year. With $0.15/kWh electricity and $3.50/gallon gas, driving 40 miles/day saves ~$1,400/year.
Toggle to 🌍 km mode. Enter your car's fuel consumption in L/100km (e.g. 7 L/100km), fuel price in €/L, and EV efficiency in km/kWh. All savings are calculated in the metric system.
Select the 🇨🇳 China preset. The calculator pre-fills ¥0.97/kWh electricity, ¥8.20/L petrol, and switches to km/L units. Popular Chinese EVs like BYD Han and NIO ET5 appear in the model picker.
Petrol combustion emits ~2.31 kg CO₂ per litre. Your EV's grid emissions depend on your region (France ~56 gCO₂/kWh, UK ~225, Germany ~350, China ~560). We subtract EV emissions from gas emissions to give you net CO₂ savings.
Enable 'EV Purchase Cost' and enter the extra cost of your EV over a comparable gas car. Payback = extra cost ÷ monthly savings. If you save £200/month and the EV costs £5,000 more, payback is 25 months.
The model picker shows models relevant to your selected region: Tesla Model 3, Chevrolet Bolt (USA), VW ID.4, Peugeot e-208 (Europe), BYD Han, BYD Atto 3, NIO ET5 (China), and Hyundai IONIQ 6 (global). Clicking a model auto-fills its real-world efficiency.