Yeah it charges whenever A/C input is present. It has a 5 stage charger
I think. The manual has a lot of detail on that.
We got it from some vendor on Amazon.
The biggest drawback in my mind is there's no network connectivity.
On 10/31/2016 3:29 PM, Chuck McCown wrote:
Does the inverter charge the batts? I presume so.
Where did you get the inverter?
*From:* Adam Moffett
*Sent:* Monday, October 31, 2016 1:26 PM
*To:* af@afmug.com
*Subject:* Re: [AFMUG] Tesla powerwall 2
I ran 6/3 armored with ground between each device.� There are 1/2"
knockouts on the connection box on the inverter/charger so I bought a
couple of BX connectors.� It comes with romex type clamps.....I used
armored because I don't think it would be legit to run Romex on top of
a finished wall.
The inverter/charger input needs 240v so it gets hot+hot+ground.�
The output is hot+hot+neutral to the subpanel.� The transfer switch
"Mains" connection is actually coming from a 50a breaker in the main
panel.� I just removed the ground/neutral bond and it works fine as
a subpanel.� So we now have color coded outlets on the wall with
White outlets being gen+battery protected and Grey outlets being
unprotected (straight from the main panel).
I don't know exactly what the response time is for switching from
charger to inverter, but when I flip off the breaker nothing
reboots....so it's quick enough for me.� When the generator starts,
this switches back to charger mode after a 15 second delay.
I can't wrap my head around how this works with the inverter,
generator, and utility power all being a different phase; but I know
it does work.
This does have an LVD which I know you don't like, but there's a
jumper to select whether you favor more runtime or more battery
life.� You can't disable the LVD completely; the jumper just changes
the cutoff voltage.
Also, be aware that the 12KW model weighs over 200lbs.� Definitely
need two people to install it.
On 10/31/2016 3:02 PM, Chuck McCown wrote:
12 kw?� Sine wave?
How is it wired in with the transfer switch and mains power?
�
*From:* Adam Moffett
*Sent:* Monday, October 31, 2016 1:01 PM
*To:* af@afmug.com
*Subject:* Re: [AFMUG] Tesla powerwall 2
�
http://www.aimscorp.net/12000-Watt-Inverter-Charger-48-volt-120-240vac.html
This has a street price of $2500.� The four SLA batteries were (I
think) $160 each.� The 3/0 battery cable was not free, but I don't
remember what it cost.� This is only 4800 Wh, but it's trivial to
add more/bigger batteries.�
This doesn't have any built in network monitoring though.....does the
Powerwall?
�
On 10/31/2016 2:14 PM, Peter Kranz wrote:
The new tesla powerwall 2 appears to be an interesting UPS option
now that it has a build in inverter/charger. 14kWh for $5500, so
would run most of my sites for about 24 hours. When I backed out the
costs for 14kWh of our standard AGM cells and inverter, I think this
price is quite reasonable.
�
https://www.tesla.com/powerwall
�
*Peter Kranz
*www.UnwiredLtd.com <http://www.unwiredltd.com/>
Desk: 510-868-1614 x100
Mobile: 510-207-0000
pkr...@unwiredltd.com
�
