Will my Gen 1 HPWC work with my new Model Y?

[songman]

I kept my Gen 1 HPWC when I sold my 2013 Model S a few years ago. Will that HPWC work with the Model Y I just ordered?

 

[RichardKJ]

Yes

 

[jcanoe]

If your HPWC was configured for charging at 240V/80A you might want change the circuit breaker to 60A and the reconfigure the HPWC for 60A. The maximum circuit amperage for the Gen3 Wall Connector is 60A, the maximum charging amperage for the Long Range Model Y and the Performance Model Y is 48A on a 60A circuit.

 

[shingles]

If your HPWC was configured for charging at 240V/80A you might want change the circuit breaker to 60A and the reconfigure the HPWC for 60A. The maximum circuit amperage for the Gen3 Wall Connector is 60A, the maximum charging amperage for the Long Range Model Y and the Performance Model Y is 48A on a 60A circuit.

That gets negotiated between the car and the HPWC... you don't need to change the breakers. The car will request the max that it can be charged at.

 

[jcanoe]

That gets negotiated between the car and the HPWC... you don't need to change the breakers. The car will request the max that it can be charged at.

You are correct, the vehicle and the HPWC negotiate the maximum charging amperage. The circuit breaker can be changed, 60A for 80A, with no loss of function when charging the Model Y. Unless the OP plans to charge a first generation Model S or Model X at home there is no additional value or function to staying with the original 80A circuit breaker.

In the event of equipment failure (the HPWC is several generations older than the current Wall Connector) the smaller 60A circuit breaker could help prevent an electrical fire from starting at the HPWC.

 

[gaswalla]

I'd keep an 80 amp charger for future proofing.. the cybertruck and roadster with their massive capacities will undoubtedly need 80+ amps

 

[jcanoe]

I'd keep an 80 amp charger for future proofing.. the cybertruck and roadster with their massive capacities will undoubtedly need 80+ amps

The OP could always change the circuit back to 80A if they ever own an EV that is capable of charging at higher than 48A. In any case it would most likely require a new Wall Connector. The HPWC, as with other electric vehicle service equipment (EVSE), will eventually wear out and need to be replaced. Most EVSE are warrantied for a maximum of 3 years.

 

[songman]

Thanks for the feedback, guys! Much appreciated!

 

[ATPMSD]

If you think you might get a 2nd EV in the future, then consider putting in a subpanel. You can connect a Gen 3 to the subpanel and be able at add a 2nd one later (load sharing is built in). WIth one Wall Charger you can install a 120V 20A outlet as well, and with two chargers you can still install a 120V outlet and just limit the load sharing capacity.

Since you have a Gen 1, you would connect the Gen 1 to the subpanel. Later, if you add another connector, you will have a handy panel to support whatever you may want.