Forums

does tesla bidirectional charging mean car can be used as a generator for house during storm?

does tesla bidirectional charging mean car can be used as a generator for house during storm?

would love to use the huge battery in my model X to run a dedicated circuit for day or 2 when power goes out in a hurricane.
any word on whether they will make a cord available since it sounds like there may be bidirectional charging capability already built in??
or is it only possible on new builds??

andy.connor.e | 22 mai 2020

thats the idea. your car is a mobile powerwall.

jimglas | 22 mai 2020

I still want a cybercar

TeslaTap.com | 22 mai 2020

The bi-directional design is supposedly in the Model Y, but has not been confirmed by Tesla. It is not in the S or X and the 3 is an unknown. It's also unclear if Tesla will ever enable such a feature, as depending on the usage, could affect battery longevity and increase warranty costs. It will also require some hardware installed in the house to prevent feeding the grid during a power outage.

andy.connor.e | 22 mai 2020

Battery Day!!!!!!

FISHEV | 22 mai 2020

It will not work with a Tesla - they have blocked any protocols other than their own. Such usage will void the Tesla battery warranty and may cause technical problems with the EV.

Put simply, dcbel can charge and discharge (to power a home in a blackout) the battery of any EV built on the CHAdeMO charging protocol like the Nissan Leaf and Mitsubishi Highlander. The CCS protocol (used by the CHevy Bolt and most American EVs) does not currently support bi-directional power flow, but it will as soon as this summer and dcbel was designed to be ready for this update to the protocol and will be able to immediately support CCS bi-directionality after a small over the air update is downloaded.

Best regards,

The Ossiaco Team

Power Will Never Be The Same
dcbel.ossiaco.com | View full dcbel specifications | View dcbel Solar Guide

rxlawdude | 22 mai 2020

One would have to disconnect the main breakers.

Tesla2018 | 22 mai 2020

So that means that if it works on other brands, you can go to a Chargepoint station or work location that is free, charge up your battery and then go home and power your home for free. Don't think that will last for long.

TabascoGuy | 22 mai 2020

Copy/paste doesn't really require too much understanding.

andy.connor.e | 22 mai 2020

FISHEV's entire presence is predicated on not understanding anything.

There has been a net zero change in knowledge or tactics in 4 years. What was that saying again?

"It is difficult to get a man to understand something when his salary depends upon his not understanding it."

FISHEV | 22 mai 2020

@Tesla2018 | May 22, 2020 So that means that if it works on other brands"

Only heard of one other company trying to mark a bi-directional EV charger. I only contacted the one.

andy.connor.e | 22 mai 2020

The second company will be Tesla. I can easily see office buildings installing chargers connected to the buildings electrical system to offset peak energy costs.

Not sure why we are talking about this like its a reality right this second when everything was essentially leaked ahead of battery day. Tesla could have a plan setup to help implement this in areas not at home. We dont know anything yet as far as im concerned, except that V2G is in fact a thing.

johncrab | 22 mai 2020

It is theoretically possible as is selling battery energy back to the grid which is Elon’s latest wet dream. He wants to use customers’ equipment and energy to be an energy broker. It could work if each owner put in thousands of dollars in hardware to connect the car to the house through an inverter with auto disconnects. Etc. Then buy energy off peak and sell it back on peak for peanuts while trying to amortize the hardware purchase at 2.5 cents per kwh. Let me know how this works out. It only begins to make sense with a solar roof and using the car as a large Powerwall but even that is sketchy.

FISHEV | 22 mai 2020

johncrab | May 22, 2020 "It only begins to make sense with a solar roof and using the car as a large Powerwall but even that is sketchy."

Plus when the grid needs power will be during the day when the car is out and about not at night. Power companies do pay for peak shaving by heavy power using industrial plants and probably would offer a break for residences that could go off the grid at winter or summer day time peaks but using the car would make it problematic that it was available when needed.

And you'd be eating into the solar energy the house is banking for night and winter use with lower solar production.

A practical use would be in power outages and it would seem EV mfgs. could create a "Emergency Power Mode" that can be utilized 10 times in cars life time before voiding the warranty or build the 10 time limit iinto the car's software.

M-A-B-MCMLXXX | 23 mai 2020

"It will not work with a Tesla - they have blocked any protocols other than their own. "

The former doesn't follow from the latter.

TabascoGuy | 23 mai 2020

@M-A-B-MCMLXXX +1

Same thing for the comment about voiding the warranty. If Tesla furnishes the hardware and software for V2G once it's released, the warranty would still cover the battery.

M-A-B-MCMLXXX | 23 mai 2020

+1 Tabasco. I said similar here: https://forums.tesla.com/forum/forums/vehicle-grid

Tesla actively prevents third parties from doing so, which is wise not only for battery health but also for general safety. If they create a system for V2G, they can mitigate the battery health issue with warranty stipulations and metrics, and avoid the muddy liability risks of allowing someone else to draw high power from Tesla battery packs

andy.connor.e | 23 mai 2020

its also being assumed that there will not be a warranty adjustment for the million mile battery.

FISHEV | 23 mai 2020

M-A-B-MCMLXXX | May 23, 2020 "It will not work with a Tesla - they have blocked any protocols other than their own. " The former doesn't follow from the latter.

But it is the reality from one of only two companies building the two way charger. Facts rule not fanboi fantasy.

M-A-B-MCMLXXX | 23 mai 2020

Obviously if tesla builds such a charger, they won’t prevent its use. Maybe they’ll use the capability and maybe they won’t.

Limitations by third parties are irrelevant.

Mike83 | 23 mai 2020

Powerwalls are the best solution along with the integrated software(Tesla app integrates the car, the panels and the powerwall backup). In addition the Utilitiy Companies have a say in this for electrocution issues during an outage.
This is an old idea from 6 years ago. How well did competitors V2B get utilized?

andy.connor.e | 23 mai 2020

All that FISH is doing, is pointing out the flaws in the charging infrastructure that is not Tesla.

But in other narratives, the charging infrastructure that is NOT Tesla is superior. Thanks for playing.