Ev Calculator

EV vs. Gasoline Car Cost & Emissions Calculator

Understanding Your EV's Impact: Cost and Emissions

Electric vehicles (EVs) are rapidly gaining popularity, not just for their environmental benefits but also for their potential to save drivers money on fuel. This calculator helps you compare the annual driving costs and carbon emissions of an electric vehicle versus a traditional gasoline-powered car, based on your specific driving habits and local energy prices.

How the Calculator Works

The calculator takes several key inputs to provide a comprehensive comparison:

• Annual Driving Distance: This is the total distance you expect to drive in a year. It's the foundation for all cost and emissions calculations.
• EV Energy Consumption (Wh/mile): This measures how much energy your EV uses per mile. Lower numbers indicate better efficiency. For example, 300 Wh/mile means the car uses 0.3 kWh to travel one mile. You can often find this in your EV's specifications or by monitoring your vehicle's performance.
• Electricity Cost ($/kWh): This is the price you pay for electricity at home or at public charging stations. It's a crucial factor in determining your EV's "fuel" cost.
• Gas Car Fuel Efficiency (MPG): This is the miles per gallon your gasoline car achieves. Higher MPG means better fuel economy.
• Gasoline Price ($/gallon): The current price of gasoline in your area directly impacts the cost of driving a conventional car.
• Electricity Grid Carbon Intensity (kg CO2/kWh): This represents the average carbon dioxide emissions generated per kilowatt-hour of electricity produced in your region. It accounts for the emissions associated with generating the electricity your EV consumes. This value varies significantly based on the energy sources (e.g., coal, natural gas, renewables) used by your local power grid.

Key Calculations Explained

The calculator performs the following steps:

1. EV Annual Energy Consumption: It converts your annual driving distance and EV efficiency into total kilowatt-hours (kWh) consumed per year.
2. EV Annual Fuel Cost: This is calculated by multiplying the annual energy consumption by your electricity cost per kWh.
3. Gas Car Annual Fuel Consumption: It determines how many gallons of gasoline your conventional car would use over the annual driving distance.
4. Gas Car Annual Fuel Cost: This is found by multiplying the annual gasoline consumption by the gasoline price per gallon.
5. Annual Fuel Cost Savings: The difference between the gas car's annual fuel cost and the EV's annual fuel cost.
6. Gas Car Annual CO2 Emissions: Calculated by multiplying the annual gasoline consumption by a standard CO2 emission factor for gasoline (approximately 8.887 kg CO2 per gallon).
7. EV Annual CO2 Emissions: Determined by multiplying the EV's annual energy consumption by your local electricity grid's carbon intensity.
8. Annual CO2 Emissions Saved: The difference between the gas car's annual CO2 emissions and the EV's annual CO2 emissions.

Example Scenario:

Let's consider a typical scenario:

• Annual Driving Distance: 12,000 miles
• EV Energy Consumption: 300 Wh/mile
• Electricity Cost: $0.15/kWh
• Gas Car Fuel Efficiency: 25 MPG
• Gasoline Price: $3.50/gallon
• Electricity Grid Carbon Intensity: 0.4 kg CO2/kWh

Based on these inputs, the calculator would show:

• EV Annual Fuel Cost: (12,000 miles * 300 Wh/mile / 1000 Wh/kWh) * $0.15/kWh = $540.00
• Gas Car Annual Fuel Cost: (12,000 miles / 25 MPG) * $3.50/gallon = $1,680.00
• Annual Fuel Cost Savings: $1,680.00 – $540.00 = $1,140.00
• EV Annual CO2 Emissions: (12,000 miles * 300 Wh/mile / 1000 Wh/kWh) * 0.4 kg CO2/kWh = 1,440 kg CO2
• Gas Car Annual CO2 Emissions: (12,000 miles / 25 MPG) * 8.887 kg CO2/gallon = 4,265.76 kg CO2
• Annual CO2 Emissions Saved: 4,265.76 kg CO2 – 1,440 kg CO2 = 2,825.76 kg CO2

This example demonstrates significant annual savings in both cost and carbon emissions by choosing an EV.

Annual Comparison Results:

EV Annual Fuel Cost:

Gas Car Annual Fuel Cost:

Annual Fuel Cost Savings with EV:

= 0 ? 'green' : 'red') + ';">$' + annualFuelCostSavings.toFixed(2) + '

---

EV Annual CO2 Emissions:

Gas Car Annual CO2 Emissions:

Annual CO2 Emissions Saved with EV:

= 0 ? 'green' : 'red') + ';">' + annualCo2EmissionsSaved.toFixed(2) + ' kg CO2