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For comparison, our York unit is from 2009 and is 5 ton, 15 SEER, 118 LRA. We have two Powerwalls on whole house backup and they have no trouble starting the York. We don't have a soft start thingy installed. Tesla specs say each Powerwall supports 106 LRA, so two should be more than enough...

Yesterday was a good day in San Diego. Some high clouds in the afternoon, but otherwise very clear. Your system output looks solid.

Update: This issue is now resolved. We provided Tesla with several examples of the noise (video and audio recordings) and after several examples, it was determined that the unit was operating out of spec and needed to be replaced under warranty. The new unit has operated flawlessly since...

Thanks for the heads-up. These prices really are insane.

Our new Powerwall system went into storm watch mode earlier today. I was surprised to see the PWs charging from the panels AND from the grid. It makes sense, as the priority switches to charging the batteries to 100% in advance of a severe weather event. The house continues to get power from...

Thanks, BG. Only one makes this noise (the last in the chain) and it only happens a few times during discharge at night. Tesla had our installer check the CANBUS connections and everything was tight. I did not check on the termination resistor and I'm hesitant to check that myself. Next time...

Our system is about the same size as yours - 5.8 kW. It has been in service for about 6 years, so it has paid for itself now. We added 2 Powerwalls last month and the added value has been great. Sure, they cost a bit and payback will take a long time. However, the value to us was storing and...

Thank you, BG. You have provided more information in a single post than my installer AND Tesla have provided in all my interactions with them so far. I will stay on this and keep you all posted.

Carlsbad, CA, resident there. According to our installer, to have stacked Powerwalls in the garage or if against the wall, but just above the floor, bollards are required. Powerwalls must be 36" above the floor to avoid the bollards requirement. We didn't want bollards, so up the wall they...

End of July, just a few weeks ago. PWs were added to an existing Enphase setup that has been in place for about 5 years.

Thank you all for your comments and sage advice. The install company came out yesterday and poked around a bit. They talked with Tesla on the phone and we sent them the recording. After "escalating to tier 2", Tesla asked for an additional recording that included the sound and some other...

I've uploaded the file to a Dropbox folder. If you would like to take a listen, please do and reply with any comments. I hope someone else has heard something like this and has a resolution. The installation company has been less than helpful so far. Powerwall 2 noise

Hi, new poster here. We have two Powerwall 2 units recently installed. They are charged by an existing Enphase solar installation. Everything has been working fine and I am spending time learning about self-powered and Time Based Control. One issue that has come up is that one of the...