EV Charging Strategy Simulator

First, the tool converts weekly miles into annual miles (weekly miles × 52), then calculates annual energy needed (annual miles ÷ miles/kWh). Next, it allocates that energy between home and public using your “public charging mix,” then splits the public portion into destination vs Supercharger based on your “public charging split.” Finally, it multiplies each location’s kWh by its $/kWh rate, adds them up, and compares the total to an all-home-charging baseline.

This calculator focuses on energy cost ($/kWh) and intentionally excludes session fees, parking fees, idle/queue fees, taxes, and membership discounts—so results are best thought of as an energy-only estimate. It also uses simplified pricing (one average rate) and ignores real-world factors like charging losses (assumed to be reflected in your efficiency), availability/wait times, seasonal efficiency changes, and battery degradation.

If you set public charging mix to 0%, the destination/Supercharger split won’t matter and the tool will recommend home charging as the most cost-effective option. If your destination rate is set to 0 (common for some workplace/amenity charging), the simulator may show destination charging as dramatically cheaper than Supercharging; in that case, treat the result as “best-case energy pricing.” If your efficiency is set extremely low or high, expect the kWh—and therefore costs—to become less realistic.

Make sure your public split percentages add up to 100% (destination + Supercharger + home share, as applicable in your UI). Also double-check units: efficiency must be in miles per kWh, and all rates must be in $/kWh. Finally, remember that Superchargers often add more than energy cost in practice (idle fees, parking, and time lost), which this tool won’t capture—so real-world “total burden” may be higher than the energy-only estimate.