You can install our site as a web app on your iOS device by utilizing the Add to Home Screen feature in Safari. Please see this thread for more details on this.
Note: This feature may not be available in some browsers.
Autocorrect failed! certain size of windows. When my installer came, he looked at the windows I had, and said that I am fine by installing the PW closer than 36". As the windows I have in the kitchen are smaller than what would have consider to be used for emergency.@CrazyNavi not sure what you mean by that curtain size comment. But it's a small 2x3 foot single-hung window.
Again that what installed told me as my windows aren't considered egress.Autocorrect failed! certain size of windows. When my installer came, he looked at the windows I had, and said that I am fine by installing the PW closer than 36". As the windows I have in the kitchen are smaller than what would have consider to be used for emergency.
I see no exemption in the code for size of the window. This is not only about egress, but about fire and smoke intrusion into the home.Again that what installed told me as my windows aren't considered egress.
It makes sense, I didn't see anything referring to the size or door either. Just was passing what they have done before. I didn't have to do it as I have plenty of empty wall. Hopefully once UL+ pass I can just stack battery, so I don't have to space all of themI see no exemption in the code for size of the window. This is not only about egress, but about fire and smoke intrusion into the home.
Some AHJ might allow an exemption based on window size but I do not know of one.
The latest Tesla Powerwall datasheet does indeed show the 9540A testing has been performed. it also shows a maximum LRA of 88A per powerwall.
Not sure if this is still growing, but it is a bit shy of what the datasheet showed on 6/1/21. That document showed 104 LRA.
Though Tesla was hoping they would support 104 LRA, something may have stopped them at 88 LRA. It could be that future firmware upgrades are going to keep increasing this.
It is for the following:Which powerwall 2 is that data sheet from (the model 201XXXX or model 301XXXX), or does it cover both?
It is for the following:
(3012170-xx-B and later, 2012170-05-E)
Would that mean 3' separation is not longer required and stacking should be allowed?The latest Tesla Powerwall datasheet does indeed show the 9540A testing has been performed. it also shows a maximum LRA of 88A per powerwall.
Not sure if this is still growing, but it is a bit shy of what the datasheet showed on 6/1/21. That document showed 104 LRA.
Though Tesla was hoping they would support 104 LRA, something may have stopped them at 88 LRA. It could be that future firmware upgrades are going to keep increasing this.
Would that mean 3' separation is not longer required and stacking should be allowed?
Thank you, yeah wonder when that would be allowed so I can add 3x PW to my system. Should have done that when I ordered the system but didn't.Currently Powerwall 2 can be installed per the CFC and CRC with less than 3' in between them. The installation manual allows 10" side to side and the fire testing allowed slightly closer spacing. Santa Clara County Fire is still denying this UL 9540A test report as a valid justification, and they have some reasons why they think there are issues I am sure. They refuse to share these reasons for denying this 9540A test report, but if someone were to FOIA their communication regarding this test report it might be illuminating.
Most other jurisdictions are being reasonable. They know that when a NRTL (nationally recognized testing lab) Like UL, CSA, Intertek gets paid a few hundred k dollars they do know what they are doing.
Unfortunately, there are strong minds and wills in the fire service that arent necessarily swayed by the NRTL data, fire tests and test reports. Only homeowner pressure to the fire chief or county board of supervisors could change this answer.
Call, email and write your local fire service and your AHJ, or wait until it settles in some number of months or years.Thank you, yeah wonder when that would be allowed so I can add 3x PW to my system. Should have done that when I ordered the system but didn't.
I reside in rocklin, ca and my installer just told me today that they are not allowed to stack powerwalls anymore. They said my system also has an inverter, but I thought that is standard.
Has anyone else heard this recently?
There is a push from some in the fire community to reject Tesla UL 9540A Large scale Fire testing based on what seems to me to be a technicality.I moved your post to this thread because this is the thread with most of the discussion on this topic. I am not quite sure where it stands as of right now (april 2022), regarding stacking of powerwalls, and whether its allowed at all, or there are onerous requirements in order to comply, that are causing your installer to say "no you cant do that anymore".
@Vines would definitely know the current status of this.
No, the Santa Clara County fire association refused any further discussion on this topic. They will only talk with Tesla.@Vines is there a pointer to where the pushback is being discussed somewhere?