Does anyone know if there's a limit on the number of Powerwalls that can be installed in a home?
We are located in Napa County and our service is with PGE. We have a ~17kW ground-mount solar and our NEC peak demand calculation is about 47 kW, if that makes a difference.
The back story is that we have had major problems with our Powerwall installation, including that Tesla's engineering department has continuously gotten our house load calculations wrong. We have a 400 amp incoming service and Tesla decided that they needed split that service into two 200 amp sub-panels (it's debatable whether this really needs to be done in the first place because the NEC calculations come out to about 190 amp, whereby we should be able to put everything behind a single TEG - our continuous loads using the Green Button have been no higher than about 60 amp in the last 2 years as a result of home energy efficiency upgrades).
Splitting the system into two means that our power output from the Powerwall banks was cut in half, namely we have 2 Powerwalls behind two TEGs (we ordered 4 Powerwalls total). After install, we experienced brown-outs during the stress tests and our AC's were either not able to start or were prematurely shutting down (along with other equipment). That was 7 months ago.
Tesla has since admitted that each TEG needs at least 1 more Powerwall to function correctly (and more likely 2). Tesla had agreed to install one more Powerwall behind each TEG (6 total) if we paid more, but the story today is that there is a "site cap" of 5 Powerwalls for residential projects. Apparently anything over 5 is considered "commercial" and prohibited.
I'm almost certain that we have neighbors that have many more - I even seem to recall talking with the on-site Tesla installers who told me they have installed a dozen or more Powerwalls in residential homes in the area. So, this doesn't make any sense.
We are located in Napa County and our service is with PGE. We have a ~17kW ground-mount solar and our NEC peak demand calculation is about 47 kW, if that makes a difference.
The back story is that we have had major problems with our Powerwall installation, including that Tesla's engineering department has continuously gotten our house load calculations wrong. We have a 400 amp incoming service and Tesla decided that they needed split that service into two 200 amp sub-panels (it's debatable whether this really needs to be done in the first place because the NEC calculations come out to about 190 amp, whereby we should be able to put everything behind a single TEG - our continuous loads using the Green Button have been no higher than about 60 amp in the last 2 years as a result of home energy efficiency upgrades).
Splitting the system into two means that our power output from the Powerwall banks was cut in half, namely we have 2 Powerwalls behind two TEGs (we ordered 4 Powerwalls total). After install, we experienced brown-outs during the stress tests and our AC's were either not able to start or were prematurely shutting down (along with other equipment). That was 7 months ago.
Tesla has since admitted that each TEG needs at least 1 more Powerwall to function correctly (and more likely 2). Tesla had agreed to install one more Powerwall behind each TEG (6 total) if we paid more, but the story today is that there is a "site cap" of 5 Powerwalls for residential projects. Apparently anything over 5 is considered "commercial" and prohibited.
I'm almost certain that we have neighbors that have many more - I even seem to recall talking with the on-site Tesla installers who told me they have installed a dozen or more Powerwalls in residential homes in the area. So, this doesn't make any sense.