Electric Vehicle (EV) Home vs. DC Fast Charging Arbitrage Analyzer

Compare EV charging costs and 100 km driving expenses across home AC, public AC, and DC fast charging considering charging efficiency losses.

Formula

Charging Cost = [Battery Capacity × (Target% - Start%) / Efficiency] × Electricity Tariff

Source / method note

Based on standard EV grid charging efficiency (~89% for AC, ~94% for DC) and prevailing electricity tariffs.

Legal / official rate note

Charging station operators may charge additional idle or connection fees.

Frequently Asked Questions

Why is there an energy loss when charging an electric car at home?

Converting AC electricity from the grid into DC battery power generates heat and resistive losses in the onboard charger, resulting in ~10-12% energy overhead.

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