If you install a receptacle such as the NEMA 14-50 (any receptacle really) it is better if the receptacle is out of the elements and inside the garage. For outdoor use install the Tesla Wall Connector unit as it is designed to be hard wired and is fully weather rated for outdoor use. The Tesla Gen3 Wall Connector ($495 US) can be configured for any 120V or 240V charging circuit rated from 15A up to 60A, so you could install the Wall Connector on a 40A circuit and charge at 32A (this is the same amperage and speed as with the Tesla Gen2 Mobile Connector when fitted with the NEMA 14-50 or 6-50 plug adapter.) The Gen3 Wall Connector has a longer 24 foot charging cord than the 18 foot cord that comes with the Gen2 Mobile Connector. When you add up the cost of all of the additional electrical components, accessories needed for using the Mobile Connector at home with a NEMA 14-50 receptacle the difference is less than $200. The Tesla Gen3 Wall Connector supports automatic load balancing (requires access to a Wi-Fi network). Up to 6 Tesla Gen3 Wall Connector units can be installed on the same charging circuit.