[olug] Tesla PowerWall for server room battery backup

Rob Townley rob.townley at gmail.com
Thu Oct 24 14:39:58 CDT 2019

 We have a big empty roof that just might have solar cells someday.

There are definitely known problems and the unknown with Tesla.  For one,
I am not liking any dependency on the cloud.  From what i understand, if
the internet drops, there is a local embedded webpage that one could
manually use to give details on remaining power.  Does not appear the app
would automatically start using WiFi to get to that local webpage,
however.   I doubt even a buzzer alarm goes off when utility power dies.

Tesla batteries have a built-in ten year warranty.  Liebert would charge
about six thousand for about half that time.

Since I am not currently a Tesla owner, the Tesla forums
<https://forums.tesla.com/> only allow me to post replies to existing
questions, not initiate a new one.

p.s. COX Telephone is down city wide+.

On Thu, Oct 24, 2019 at 1:57 PM Justin Reiners <justin at hotlinesinc.com>

> Don't get me wrong, I love love love Tesla, EV's, and Lithium, I'd just
> hate to have you still need a UPS to safely shut down systems when the
> power went out, or reinvent the wheel.
> On Thu, Oct 24, 2019 at 1:54 PM Justin Reiners <justin at hotlinesinc.com>
> wrote:
>> Lack of shutdown notifications and the price would be a factor in me
>> looking for another device, We're using a 10KVA and 15KVA older Lieberts
>> for our building. I really like them, we got them used from a recycler a
>> few years ago, and just replaced the batteries recently in the 10KVA after
>> 10 years, it still had half hour backup power.
>> On Thu, Oct 24, 2019 at 1:17 PM Rob Townley <rob.townley at gmail.com>
>> wrote:
>>> Has anyone researched using Tesla PowerWalls in place of lead acid
>>> battery
>>> backup for server room computers?   A single powerwall could provide 5kW
>>> continuous power.   Price and performance seem comparable to lead acid.
>>> Tesla.com/powerwall
>>> Tesla.com/powerpack is the more industrial grade system, but starts at
>>> 50kVA which is much more than we need.
>>> Unfortunately, there are no installers in Omaha.
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