Adding solar after PS install

[mcvaughan]

Has anyone had their PowerShare installed and then added solar afterwards? Was curious if there any gotchas.

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[ThatOldGuy47]

If you want PowerShare don’t install a powerwall. Basically you can only have a gateway and charger to get PowerShare. Not for sure how you will have solar set up. I thought the more Tesla components the better but come to find out not the case yet. They plan an update mid 2026 to get PowerShare to work with powerwall but it does not currently. I’d imagine it has to navigate which source and when to pull power from during no solar input to remain off grid power.

 

[Foraker]

Just want to add that they have recently said mid-2026 for software update to get PowerShare to work with Powerwall, but that has been repeatedly delayed, so don't plan around that "promise". From what I've read here, it was originally planned for sometime in 2024. I leased my CT last September when the plan was that it would be released by end of Q3 2025, then it was delayed until end of 2025, then to mid-2026. I'm not sure they are currently saying when it might be released . . .

 

[bluerice]

Don’t expect powershare to ever work if you have solar and powerwalls. Tesla has been lying about this feature from day one—-which started years ago. It was one of the reasons I justified the CT purchase and have regretted believing (yet another) Musk lie.

He should be sued (again) for his lies. Congrats to twitter owners for winning their lawsuit.

PS: Tesla no longer provides any time frame other than “soon” which is the equivalent of “we’ll see”.

 

[Foraker]

PS: Tesla no longer provides any time frame other than “soon” which is the equivalent of “we’ll see”.

I thought this was the case, but wasn't sure - thanks for confirming!

 

[mcvaughan]

All —

I don’t want or even mentioned Powerwalls.

I only have PowerShare right now.

 

[HaulingAss]

Just want to add that they have recently said mid-2026 for software update to get PowerShare to work with Powerwall, but that has been repeatedly delayed, so don't plan around that "promise". From what I've read here, it was originally planned for sometime in 2024. I leased my CT last September when the plan was that it would be released by end of Q3 2025, then it was delayed until end of 2025, then to mid-2026. I'm not sure they are currently saying when it might be released . . .

Delays happen. They are the norm with complex products (and Powerwall/Powershare are certainly complex products considering the number of electrical utilities/codes in a fast-changing environment that they must be compatible with).

I planned around the fact that Tesla is currently working on software designed to be compatible with different utilities and is estimated to be released this year. I just installed a single Powerwall/solar system with the intent to use my Cybertruck as additional energy storage when Tesla releases the software.

If it's late, so be it, the additional storage is only for flexibility during longer outages, the system functions just fine until then without the additional storage.

Could I get burned and never get to add my Cybertruck to the system? Sure, anything is possible, but I think this particular scenario is highly unlikely. There is a lot of negativity around Powerwall/Powershare that I don't think is supported by the facts on the ground. Time will tell, but I suspect I'll likely be proven right on this within a year, perhaps much sooner.

 

[HaulingAss]

Don’t expect powershare to ever work if you have solar and powerwalls. Tesla has been lying about this feature from day one—-which started years ago. It was one of the reasons I justified the CT purchase and have regretted believing (yet another) Musk lie.

I've seen zero evidence Musk is lying. If you have evidence of your claim, please share it. Until then you just sound like a hothead.

 

[Foraker]

Delays happen. They are the norm with complex products (and Powerwall/Powershare are certainly complex products considering the number of electrical utilities/codes in a fast-changing environment that they must be compatible with).

I planned around the fact that Tesla is currently working on software designed to be compatible with different utilities and is estimated to be released this year. I just installed a single Powerwall/solar system with the intent to use my Cybertruck as additional energy storage when Tesla releases the software.

If it's late, so be it, the additional storage is only for flexibility during longer outages, the system functions just fine until then without the additional storage.

Could I get burned and never get to add my Cybertruck to the system? Sure, anything is possible, but I think this particular scenario is highly unlikely. There is a lot of negativity around Powerwall/Powershare that I don't think is supported by the facts on the ground. Time will tell, but I suspect I'll likely be proven right on this within a year, perhaps much sooner.

I feel pretty much the same way, except that I may be a bit pessimistic about whether this will actually ever come, despite having no evidence that it isn't still planned (although continued delays may indicate that it's decreasing in priority and it may not be unreasonable to begin expecting it will never arrive). I think it will, but trying to manage my expectations. I'd love it if it came before September, because that's when my free year of supercharging ends, and I'd like to try just once or twice going off grid using free power from a supercharger.

 

[mongo]

Has anyone had their PowerShare installed and then added solar afterwards? Was curious if there any gotchas.

No gotchas other than typical UL1741 compliance and a 11.5kW limit for solar on the backed up side of the Powershare Gateway.

 

[ScotinUS]

I was looking at adding solar with PowerShare on a new build. Looking at https://www.tesla.com/support/powershare/what-can-powershare-back-up I don't see any references to an 11.5 kW limit for the solar - can you point me towards that? All I see is AC coupled solar to the load center but no mention of a limit. I was hoping that it meant I could run the house off solar and charge the Cybertruck at the same time and then use the PowerShare to run the house in a grid out (living in FL that is kind of important).

Thanks in advance for anyone who can point me in the right direction.

 

[mongo]

I was looking at adding solar with PowerShare on a new build. Looking at https://www.tesla.com/support/powershare/what-can-powershare-back-up I don't see any references to an 11.5 kW limit for the solar - can you point me towards that? All I see is AC coupled solar to the load center but no mention of a limit. I was hoping that it meant I could run the house off solar and charge the Cybertruck at the same time and then use the PowerShare to run the house in a grid out (living in FL that is kind of important).

Thanks in advance for anyone who can point me in the right direction.

It's in the installation manual:
https://energylibrary.tesla.com/doc...UID-04DE7F20-2290-4489-A9A1-53F639BB85CB.html

 

[ScotinUS]

Thanks Mongo. Well that's a bummer! I want to put as large a system as possible on the roof with V2H from the Cybertruck. Looks like that isn't going to happen for now. Are there any other systems anyone knows that work with the Cybertruck? I would really hate to put in a Tesla system with 2 PW3s and 25.2 kW of Solar only for them to not implement the power wall system since it costs about $80000 which is mind-blowing for that size of system. (That is what the Tesla website shows for a cost at my location).

 

[mongo]

Thanks Mongo. Well that's a bummer! I want to put as large a system as possible on the roof with V2H from the Cybertruck. Looks like that isn't going to happen for now. Are there any other systems anyone knows that work with the Cybertruck? I would really hate to put in a Tesla system with 2 PW3s and 25.2 kW of Solar only for them to not implement the power wall system since it costs about $80000 which is mind-blowing for that size of system. (That is what the Tesla website shows for a cost at my location).

The 11.5kW limit is for the backed up side of a Cybertruck only Powershare system.
You can have more solar on the grid side. Cybertruck can only absorb 11.5kW, that's why the limit is there.

You can also switch to Powerwall and wait for the software update to allow Cybertruck to work with it.

If you have an adventurous installer, you might also ask about stacking Powerwall Gateway/ backup switch followed by Powershare Gateway , but that is only a last resort if Tesla never gets Powershare working with Powerwall. The recent Powershare to grid limited rollout is a good sign.

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