An Electric Vehicle Supply Equipment (EVSE) is a box that supplies electricity to an Electric Vehicle (EV). Almost all EVs natively support the same J1772 standard for charging, and thus all commercial EVSEs also support that standard (see sidebar for Teslas). The EVSE does several things:
As a new EV owner, you typically need to buy and install your own EVSE in your garage, or outdoors where you park your car (EVSEs typically are outdoor rated, but check this if yours will be installed outdoors).
EVSEs can be bought from many places including Amazon, and Home Depot. Things to look for in a EVSE include:
Most people opt to hire an electrician to install an EVSE. The electrician will install the appropriate two pole breaker (usually a 40A breaker for a 32A EVSE, or 60A breaker for a 48A EVSE), route the appropriate sized wire and/or conduit, and connect it to where you want to install your EVSE. To install an EVSE yourself, check out this DIY EVSE Install page.
Once the EVSE is installed, using it is very simple. Just plug it into your EVs. There is no need for on/off switches or any other control to charge your car. Check the sidebar about setting up time of use settings in your EV.
Here are some good quality EVSE manufacturers along with some personal opinion and commentary:
Model S, X, 3 and Y Tesla cars need a small J1772 adapter to be able to charge from regular EVSEs. This adapter is supplied with each new Tesla car and most people keep it in their glove compartment to allow charging from public EVSEs.
So while you can use of any of the regular EVSEs for home charging, most Tesla owners opt to buy Tesla's EVSE called the Wall Connector since it uses the Tesla specific handle that plugs directly into a Tesla without the need for an adapter.
The Tesla Wall Connector is reasonably priced and has several useful features like load sharing.
Depending on where you live, your power company may give you better electricity rates in the middle of the night. Check to see if they do, and if so, usually your EV will have settings to start charging at midnight, for example, rather than when you plug in at the end of the day. If your EV does not have time of use settings, then look for an EVSE that has that feature.
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