⚡️ PowerShare Install, Specs, Details confirmed! No load shifting (for now)

[Deleted member 4261]

would depend on the solar setup in question. IQ8s can form a microgrid and operate sun up no grid no battery but very few others can. the system you have on your house can not sorry brotha

IQ8s, Enphase?

Sponsored

 

[Cybertruck 1974]

for that price ill just use the 9,000 watt output of the NEMA 14-50 plug int he truck to feed a breaker instead, not worth allt he hassle to get an extra 2000 watts

Exactly. you could even install an automatic transfer switch. It's what I plan on doing at my vacation cabin

 

[aadams1278]

Exactly. you could even install an automatic transfer switch.

This also hinges on my earlier question, can the truck auto transfer instantly or not? All Teslas prior to Cybertruck have the high voltage battery disconnected from the charge port contacts via relay. This is for safety so no one can touch the charge port contacts and be electrocuted. When the car is asleep, there is no power available at the charge port. We already know the outlets in the bed have to be manually turned on and off and there is a setting to allow them to remain powered for (I think) 10 hours after exiting the truck.

IF the PowerShare coming out of the charge port is able to instantly transfer power to your house, it would require those relays to remain closed at all times while plugged in and possibly require the truck to never sleep, which would drain the battery constantly.

I suppose Tesla could have wired up the truck logic differently but it would be a distinct departure from the logic on all prior models that is intended for safety and minimal phantom drain.

 

[cgladue]

This also hinges on my earlier question, can the truck auto transfer instantly or not? All Teslas prior to Cybertruck have the high voltage battery disconnected from the charge port contacts via relay. This is for safety so no one can touch the charge port contacts and be electrocuted. When the car is asleep, there is no power available at the charge port. We already know the outlets in the bed have to be manually turned on and off and there is a setting to allow them to remain powered for (I think) 10 hours after exiting the truck.

IF the PowerShare coming out of the charge port is able to instantly transfer power to your house, it would require those relays to remain closed at all times while plugged in and possibly require the truck to never sleep, which would drain the battery constantly.

I suppose Tesla could have wired up the truck logic differently but it would be a distinct departure from the logic on all prior models that is intended for safety and minimal phantom drain.

this is a good point. i imagine its not instant like a UPS is, but more like a natural gas generator. the gateway is what disconnects the grid and activates the Powershare. so i would almost certainly say they will not keep the contactors energized all the time to make it instant. the poiwer will go out and like 10 seconds later come back on

 

[aadams1278]

this is a good point. i imagine its not instant like a UPS is, but more like a natural gas generator. the gateway is what disconnects the grid and activates the Powershare. so i would almost certainly say they will not keep the contactors energized all the time to make it instant. the poiwer will go out and like 10 seconds later come back on

This seems like a logical compromise.

 

[Cybertruck 1974]

This also hinges on my earlier question, can the truck auto transfer instantly or not? All Teslas prior to Cybertruck have the high voltage battery disconnected from the charge port contacts via relay. This is for safety so no one can touch the charge port contacts and be electrocuted. When the car is asleep, there is no power available at the charge port. We already know the outlets in the bed have to be manually turned on and off and there is a setting to allow them to remain powered for (I think) 10 hours after exiting the truck.

IF the PowerShare coming out of the charge port is able to instantly transfer power to your house, it would require those relays to remain closed at all times while plugged in and possibly require the truck to never sleep, which would drain the battery constantly.

I suppose Tesla could have wired up the truck logic differently but it would be a distinct departure from the logic on all prior models that is intended for safety and minimal phantom drain.

as long as its connected to a breaker that is turned off or an automatic switch it should be fine. No power draw until the breaker is switched to on or the auto switch is activated by reading Main supply is dead. the truck yes has features to keep power to outlets on and a slight power drain could be possible through the cable and equipment installed to but I wouldn't think much at all to be concerned about.

 

[aadams1278]

If it’s plugged in to the charge port anyway, it’s possible they could keep the truck awake or partially awake only on PowerShare portions of the system and power could be provided from the grid so as to not drain the battery, but still allow instant transfer if grid power fails. This is pretty similar to how the existing cars function while plugged in and not charging (to my knowledge), power for vehicle standby functions comes from the grid but if you unplug the charge cable there is no interruption in vehicle power as it transfers from grid to battery…so maybe it isn’t all that different after all?

 

[Cybertruck 1974]

this is a good point. i imagine its not instant like a UPS is, but more like a natural gas generator. the gateway is what disconnects the grid and activates the Powershare. so i would almost certainly say they will not keep the contactors energized all the time to make it instant. the poiwer will go out and like 10 seconds later come back on

I think it operates just like a power wall with gateway. It's a big battery that is connected to a gateway v3 where it's reading the power and ready to go. You can even use an external automatic transfer switch without any of the Tesla equipment and have ready to go power in an instant. Just be sure to have the truck in mode where outlets are on.

 

[cgladue]

If it’s plugged in to the charge port anyway, it’s possible they could keep the truck awake or partially awake only on PowerShare portions of the system and power could be provided from the grid so as to not drain the battery, but still allow instant transfer if grid power fails. This is pretty similar to how the existing cars function while plugged in and not charging (to my knowledge), power for vehicle standby functions comes from the grid but if you unplug the charge cable there is no interruption in vehicle power as it transfers from grid to battery…so maybe it isn’t all that different after all?

im not sure why we need instant power like a whole home UPS ... i think the benefits of that highly outweigh the benefits. maybe they could do something like they do on powerwalls before a storm and do that only when a storm is expected or something. but i would not want it to remain active allt he time its plugged in.

 

[GateFather]

Exactly. you could even install an automatic transfer switch. It's what I plan on doing at my vacation cabin

Could you help me understand the difference between going with Tesla's inverter/wall connector vs. using the nema 14-50 directly? What is the amperage output difference and how would it work in practice. Power goes out, then what in both connection scenarios?

 

[cgladue]

Could you help me understand the difference between going with Tesla's inverter/wall connector vs. using the nema 14-50 directly? What is the amperage output difference and how would it work in practice. Power goes out, then what in both connection scenarios?

Powershare:
Power goes out, Tesla Gateway v3 senses this and disconnects grid, then signals Wall connector to start recieving power from the vehicle and the power comes back on after x number of seconds. total power available 11,000 watts

Using NEMA 14-50:
Power goes out, you go grab your NEMA 14-50 to RV cable plug it in to the generator inlet plug, turn off the main breaker and turn on generator breaker. then turn on the outlets using the app/screen in truck. total power available 9600 watts which is the max for a NEMA 14-50

 

[EXPTREVER]

This also hinges on my earlier question, can the truck auto transfer instantly or not? All Teslas prior to Cybertruck have the high voltage battery disconnected from the charge port contacts via relay. This is for safety so no one can touch the charge port contacts and be electrocuted. When the car is asleep, there is no power available at the charge port. We already know the outlets in the bed have to be manually turned on and off and there is a setting to allow them to remain powered for (I think) 10 hours after exiting the truck.

IF the PowerShare coming out of the charge port is able to instantly transfer power to your house, it would require those relays to remain closed at all times while plugged in and possibly require the truck to never sleep, which would drain the battery constantly.

I suppose Tesla could have wired up the truck logic differently but it would be a distinct departure from the logic on all prior models that is intended for safety and minimal phantom drain.

I think the PowerShare gateway is what detects the outrage and wakes up the truck

 

[GateFather]

Powershare:
Power goes out, Tesla Gateway v3 senses this and disconnects grid, then signals Wall connector to start recieving power from the vehicle and the power comes back on after x number of seconds. total power available 11,000 watts

Using NEMA 14-50:
Power goes out, you go grab your NEMA 14-50 to RV cable plug it in to the generator inlet plug, turn off the main breaker and turn on generator breaker. then turn on the outlets using the app/screen in truck. total power available 9600 watts which is the max for a NEMA 14-50

Got it - thanks for the detailed explanation. Very helpful. So the question is whether the $2600 of hardware + cost of Tesla certified install is worth the automated backup and slightly more output?

Did I read here right that you cannot get your own electrician to install the power sharing setup? My father in law is a licensed electrician and installed my 2 existing wall connectors. He would almost certainly be able to setup the inverter/universal setup, but why wouldn't he be able to?

 

[cgladue]

Got it - thanks for the detailed explanation. Very helpful. So the question is whether the $2600 of hardware + cost of Tesla certified install is worth the automated backup and slightly more output?

Did I read here right that you cannot get your own electrician to install the power sharing setup? My father in law is a licensed electrician and installed my 2 existing wall connectors. He would almost certainly be able to setup the inverter/universal setup, but why wouldn't he be able to?

Seems tesla is only giving the hardware to their installers, so the term "included" should come with a huge Asterisk after it.

Sponsored