A number of factors will dictate how much you spend charging your Tesla,
like which model you own, the number of miles you drive, battery options, the charger used, and electricity costs.
To get the exact cost per kWh, take the total electricity cost from your most recent utility bill and divide it by kWh used,
which will account for any fees and charges associated with getting power to your house.
Using this same information on average per-kWh charges for residential use,
we can work out what the battery charging costs for the Tesla Model S will be between 0% and 100%.
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If you have the Model S Long Range, you will increase your electric bill about $15.30 per full charge, meaning that you would need to pay around $0.037 per mile.
WXThe cost for full charging will vary depending on the model and battery capacity, but using an average price in the US of $0.14 per kWh,
Electrek calculated most models will cost $4-$5 per 100 miles charged, as long as you are charging at home.
What Is The Cost Of A Tesla On Your Electric Bill? - haymakertavern