You need to determine the capacity of your EV’s battery before you can see how much electricity is needed to fully charge it. EV battery capacities are measured in kilowatt-hours (kWh) and range anywhere between 17.6 kWh and 200 kWh.
The five EVs with the highest battery capacities include the following:
GMC Hummer EV: 200 kWh battery with 329 to 350 miles of range
Rivian R1T and R1S: 135 kWh battery with 314 miles of range for the R1T, and 316 miles of range for the R1S
Lucid Air: 118 kWh battery with 520 miles of range
Mercedes-Benz EQS: 115 kWh battery with 350 miles of range
Tesla Model S and Model X: 100 kWh battery with 387 to 520 miles of range for the Model S, and 335 to 371 miles of range for the Model X
Ask your dealership for the most up to date information if you’re unsure how to determine the battery capacity of your current EV, or one you are looking to purchase. Once you know the EV’s battery capacity, you can then calculate the amount of electricity needed to charge it.
The size and efficiency of your solar panels will determine the number of them you need to generate an appropriate energy supply for your EV battery.