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Once you know how much power your EV charger will need, it's time to check your electrical panel. If your panel doesn't have enough space for a new circuit breaker, then it's time to upgrade your electrical panel as well as add a dedicated circuit breaker for the charger. It's best to leave this kind of work to the Tesla electrician because they will be able to evaluate if any other upgrades are needed in order for your EV charger installation to be safe and reliable. They specialize in EV chargers can help determine what kind of circuit breaker or cable gauge size would best suit optimal performance of the EV charger installation.