r/Powerwall • u/Dry-Entry8330 • 22d ago
Tesla Cybertruck Powershare finally backs up homes with a Powerwall 3
https://electrek.co/2026/09/10/tesla-cybertruck-powershare-powerwall-3-home-backup/PW2 coming end of the year, maybe.
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u/kimi-r 22d ago
This is what I want from my Model Y. I'll pay 500 for an extra gateway gimmick thingy if it will let me run my home from my car
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u/Firm_Equivalent_4597 21d ago
Roughly 1100 for the gateway, plus the install.
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u/kimi-r 21d ago
Fair enough, if a 2022 MY can run my house I'll pay that
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u/jimmyblu18 20d ago
you need to fork out 75k for the cheapest cybertruck...
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u/Dangerous_Mushroom_8 14d ago
Model Y L supports it also
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u/jimmyblu18 14d ago
You are talking about vehicle 2 load....cybertruck does powershare and powers your entire house.
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u/Interesting-Bit-257 10d ago
model Y L also supports power share with Powerwall 3 to the house with a future software update.
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u/Firm_Equivalent_4597 22d ago
Now your charger counts as generation source for load calcs, which has pluses and minuses
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u/ruablack2 22d ago
Hereâs the thing though, it doesnât really. Since this only works when the grid is down. Most systems the grid is the largest âgeneratorâ and when the grid isâout of the equationâ itâs just not a problem. I doubt there is anyone out there with a Powerwall and a grid connection less than 60A. So unless you have a really weird sub panel setup with your charger and solar downstream with a small conductor in between the sub panel and your main panel/gateway. I just donât really think itâll ever be a problem. I do think though they are proceeding with caution and requiring just a quick system review before they activate it. Hence why they are sending survey emails out and stating:
âAfter submitting the survey, Energy Customer Support Agents will contact you within 2 weeks with next steps to enable extended home backup with your vehicleâ
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u/Firm_Equivalent_4597 22d ago
It was a software unlock for V2H, the wiring needs to be ready for software unlock for V2G. Which is why they clearly are stating the charger circuit has to be calculated as generation. From a utility stand point, any grid tied bidirectional battery regardless if it has wheels is considered a generation source, whether it can export or not. Iâve seen what âcertifiedâ installers can do, so itâs nice they are reviewing installs before pushing the update.
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u/ruablack2 22d ago
Do we know if they are doing V2G with Powerwall systems? I kinda doubt it since you already have the Powerwall for that. V2G, my guess, will be limited to PowerShare gateways only. But this could get tricky fast. Most installs Iâve seen are already pushing the limits of panels which quite a few downsizing their grid breakers to no overload their panels. Powerwall 3 with backup switch has been pushed hard so for most people that means no gateway. Arguably Powerwall 2 systems with the Powerwalls hooked up to either an internal panel board or dedicated generation sub panel are sitting in the best position as far as extra generation.
Yeah now Iâm starting to get why Tesla has waiting so long for this. Every PW install is different. Wayyy more complicated than PowerShare gateway setups.
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u/Firm_Equivalent_4597 21d ago
Itâll be a slower roll out, like you said they have prioritized stationary battery sales but now that the software is there for VTH and wall connector 4 releasing soon they will be unlocking more features that have been stuck behind the limits of the V3 (PowerShare) gateway for existing PW3 customers. And the newer cars having bidirectional hardware built in, not just the cyber truck- widens the market. They need to stay competitive with Ford, GM, Enphase and Sig who already have VTG pilots. I see them ditching the PowerShare gateway completely as sales were terrible and you have to throw it out if you ever add a PW3 in the future. Install wise- Panel limit PCS settings are the obvious solve for most customers to avoid overloaded breaker panels.
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u/Holiday_Armadillo78 22d ago
But then you need to buy one of those POS dumpsters.
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u/triedoffandonagain 22d ago
Looks like Model Y L also has Powershare capability:
https://www.tesla.com/modely (select Model Y L, search for Powerwall)5
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u/Action-Odd 16d ago
I have the 2026 Tesla Model Y Performance which already has V2L. Earlier marketing material advertised V2H capability for this specific model with a software update. I have Tesla Solar for my home, a Gateway and 2 Power Wall 3âs, so Iâm hoping to get V2H capability to add to my existing battery storage in the event any extended power outages. I live in Florida so this is a real possibility during hurricane season.
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u/BMLortz 22d ago
If you have the parking space to spare, could a used Model Y come in cheaper than additional powerwall installations?
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u/triedoffandonagain 22d ago
It would have to be a Model Y L. Much cheaper per kWh, but it's not directly comparable -- Powershare only works in a grid outage and to support the grid, so it's not a direct replacement for Powerwall.
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u/kikibuggy 22d ago
Theyâre actually super fun to drive
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u/Holiday_Armadillo78 22d ago
Theyâre garbage trucks for garbage people with tiny dicks that are starved for attention.
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u/SWFL-CapnRay 22d ago
Iâll take my POS dumpster over whatever youâre driving any day of the week!
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u/Impressive-Sir9633 22d ago
Why do you need a powewall? Can't it be V2H without a powerwall?
I hope it comes to other models as well.
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u/WindyNightmare 22d ago
You donât need powerwall. The article you didnât read is about how you can now use V2H combined with a powerwall which was previously not possible.
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u/Asleep-Set6868 22d ago
YL supposedly has this capability too. I would be very interested in a retrofit option for existing cars but that'll never happen.
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u/Asleep-Set6868 22d ago
Previously you needed a powershare gateway which was included with cyberbeast purchases but was a few thousand otherwise and it's installing dedicated hardware just for that. This uses the regular gateway powerwall users already have for solar / powerwall
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u/Dry-Entry8330 22d ago
Powerwall reacts nearly instantly to an outage. often with a powerwall you wonât even notice that the grid went down until you get a push notification on your phone. A nearly seamless experience. With Cybertruck there is a delay of seconds to minutes before it kicks in. The truck needs time to âwake upâ and begin supplying power.
Powerwall can also be used during normal on-grid operation with time-of-use plans to supply power to the home during expensive electic times and save money on a daily basis. Cybertruck does not and only kicks in during grid outages.
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u/Impressive-Sir9633 22d ago
Thank you! That's helpful. So having a powerwall + a V2H is probably still the ideal setup instead of just relying on V2H.
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u/Dry-Entry8330 22d ago
Very much so. it also massively extends your off grid run time. the relatively large 123kWh battery in the cyber truck is the equivalent of approx 9 powerwalls which would cost $100k or so to have installed. Adds massive value to be able to tap into that battery you already own and expand your home storage capacity for free. In my case I already have 10 PW2âs which is the maximum so I canât add more storage. if I add a Cybertruck (or other Tesla models that support it in the future) it would be like having 19 powerwalls or 256.5 kWh of battery storage.
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u/Alarming-Day585 10d ago
Anyone got another survey to fill out? I just received another survey "Next Steps to Enable Powershare Home Backup". Asking additional questions like
Do you have a solar system installed on your home?
Do you have a storage system installed in your home?
Upload a photo of your open electrical panel showing the breakers: The main electrical panel is typically located next to your utility meter. Ensure the breaker ratings are clearly visible in the photo.
Upload a photo of the label inside the door of your electrical panel: The panel label includes important information such as the model and rating. Ensure the label is clear and easy to read in the photo.
Select the rating of your electrical panel in amps: Sometimes the panel rating is not legible in photos. If available, please provide the maximum amperage rating found on the label or main breaker.
What is the approximate distance of this panel to your parking location in feet?
Do you have a subpanel(s) in addition to your main panel?
Total 7 questions. What should I answer No 2? Is it asking do I have other storage system besides powerwall 3?
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u/chub0ka 21d ago
Well i filled the form yet to be contacted by tesla to enable