How to prevent PowerShare charging other EVs during outage?

[SentinelOne]

Probably.
We have 400A service (dual 200A panels) and can run the house off a 7kW genset with manual load shedding in winter in Michigan. Key is gas furnace and water heater. If you want AC, it really depends on the unit. Post a photo of its ratings plate for more info.
(Can't speak to whether they'll do your install that way though)

We have gas furnace and water heater and other so should be good on that front. Installer had questions on my setup and when we discussed he didnt seem to think an issue to do the whole panel….so waiting for quote….hoping its reasonable and he seemed to think it would be as just swap new charger in place, run comms line to charger location and install ps box external and ajacent to main house panel. Bonus quote to split my 100 amp circuit into a 60/40 amp circuit and do a 14/50 outlet for a second ev/ elec moto.

Sponsored

 

[Woodrick]

I have a 200amp main panel and just backing up the entire panel to help reduce install cost…figure in an outage we can manuall shut down usage or breakers to ensure dont overload….if we’re not charging the ev or doing laundry and only have 1 ac unit i assume should be good?

No, the electrician will have to look at the loads and make a determination.
It becomes more of a what if both A/Cs are on and the washer is running, and power fails. If it is too much, PowerShare will fail.

With auto-failover, the only way you get the opportunity to pick and choose is to move the loads to another panel.

If you don't mind a manual solution, then that can be done as well. But in that case you use the NEMA 14-50 plug and the panel must be modified to provide lockout.

 

[mongo]

No, the electrician will have to look at the loads and make a determination.
It becomes more of a what if both A/Cs are on and the washer is running, and power fails. If it is too much, PowerShare will fail.

With auto-failover, the only way you get the opportunity to pick and choose is to move the loads to another panel.

If you don't mind a manual solution, then that can be done as well. But in that case you use the NEMA 14-50 plug and the panel must be modified to provide lockout.

You can also connect Gateway 3V in a manual transfer configuration for the full 11.5 kW (if installer/ AHJ approve).
Main panel 60A breaker -> GW 3V with 60A breaker for UWC and 60A breaker (or load lugs) back to main panel with 60A interlocked breaker.
To go Powershare: turn off the 60A breaker in main panel, then turn off the interlocked service disconnect and turn on the Gateway sourced breaker.

 

[FL370]

Our installation has the power share connected to a 100Amp breaker in the main panel. re We moved ten circuits from the main panel over to the power share panel (The truck takes two breakers.) The truck can only provide <60AMP so we chose not to run any major equipment like pool pumps or ACs. We can still power the essentials though like lights, internet, and so on. Not really worried about running the pool filter or a jacuzzi if the power goes out.

 

[MilliVanilli]

I think you move a number of loads you want backed up to the Powershare circuits. But I cancelled my installation once I received an outrageous quote.

Were you still able to get a voucher to spend in the Tesla store after you refused installation?

If you bought a Beast, were you able to get anything in exchange for the [up to] $4,000 installation credit?

 

[carsly]

Were you still able to get a voucher to spend in the Tesla store after you refused installation?

If you bought a Beast, were you able to get anything in exchange for the [up to] $4,000 installation credit?

AWD here and I took delivery after they stopped the $4K installation credit so it wouldn't have mattered either way.

I cancelled my store order for Powershare, since the equipment would never ship due to my cancelled Qmerit quote, and after some back and forth with Tesla support over a few weeks my voucher was restored.

 

[mongo]

AWD here and I took delivery after they stopped the $4K installation credit so it wouldn't have mattered either way.

I cancelled my store order for Powershare, since the equipment would never ship due to my cancelled Qmerit quote, and after some back and forth with Tesla support over a few weeks my voucher was restored.

Point of clarification: it's the order date that matters for Beast $4k credit, not delivery date.

 

[Crissa]

It matters what the 'other' EVs are.

Some smart EVSEs can be commanded to deny power during an outage. Dumb EVSEs will continue on ignorantly... but how long do they normally charge? What are the odds they would be actively charging at the time of an outage?

If they're Teslas, using Wall Connectors, they may be commanded by the software to stop charging - Powerwall software doesn't charge them by default during outages, for instance.

But it would matter which PowerShare hardware you have installed.

-Crissa

 

[SentinelOne]

No, the electrician will have to look at the loads and make a determination.
It becomes more of a what if both A/Cs are on and the washer is running, and power fails. If it is too much, PowerShare will fail.

With auto-failover, the only way you get the opportunity to pick and choose is to move the loads to another panel.

If you don't mind a manual solution, then that can be done as well. But in that case you use the NEMA 14-50 plug and the panel must be modified to provide lockout.

Got the quote today! Backing up whole house, replace current gen 1 wall charger and install powershare: $3880 so no cost to me except the seperately quoted additional 14-50 for my elec dirtbike! Happy!

Sponsored