[RE-wrenches] XW Grid Support or?

[Darryl Thayer]

Assuming this is a zero instantaneous no export, not on the daily or
monthly.   I have installed a few XW, and XW PRO inverters, however, I have
never done an instantaneous no export project on the entire service.  The
problem is the load.  Ideally you want to monitor the service entrance and
control off the service current.  This would mean the total current would
have to pass through the XW.  However, this would be a very limited
electrical use household, like an off-grid house.  For the No Export to
work on a more normal load, you want maximum current possible to pass
through the XW (where the control is) to the priority circuit panel, (you
will want to measure these loads allowing for non-coincidence).  You will
want to charge the batteries from solar only and deplete the battery to
about 15% SOC.  What you want to do is sell all the solar that comes in, do
not charge from the grid, to reduce the electric bill the maximum amount.
 I use an Egauge for measuring these loads.  (PS) the XW has no monitoring
of the LiFe battery so use the charge controller Voltage to maintain SOC.
(PS) you may have to use the generator support mode input.  I do not
remember.

Sorry about my poor writing ability, hope this helps.

On Fri, Dec 23, 2022 at 3:45 PM Dave Angelini Offgrid Solar via RE-wrenches
<re-wrenches at lists.re-wrenches.org> wrote:

> It can be done but it is not an easy job. You are 2 generations of XW back.
>
> XW+ was good at this and XW pro was designed for this
> along with being able to charge based on Soc (from the BMS) as well as voltage.
>
> Is this an insured home?  You might need a permit as this has to be legal for your area.  Out west of you is what we do.   Good Luck !
>
> The main impact of Rule 21 for solar installers is that *any of your installations in the state of California must now use Rule-compliant inverters*.
>  In effect, these are smart inverters that have been certified as UL 1741-SA or that are listed on the California Energy Commission's compliant inverter
>  database.
>
>
>
>
> *Dave Angelini Offgrid Solar
> "we go where powerlines don't"
> http://members.sti.net/offgridsolar/ <http://members.sti.net/offgridsolar/>
> e-mail  offgridsolar at sti.net <offgridsolar at sti.net>
> text 209 813 0060*
>
>
> On 2022-12-21 5:23 am, Jeremy Rodriguez via RE-wrenches wrote:
>
>
> I’ve inherited a XW. 6048 system that we just installed a LiFePO4 battery
> bank with.
> Has anyone successfully used Grid Support with Sell disabled?
> This system never had an Interconnection Agreement with the utility co so
> it cannot sell.
> Currently we have :
> AC charger on , Multi Stage
> PV input
> Sell disabled
> Grid Support disabled
> There is no TOU metering.
>
>
> Regards,
>
> Jeremy Rodriguez
> Solar Installation / Design
> All Solar, Inc.
> 1453 M St.
> Penrose Colorado 81240
>
> Sent by Jeremy's iPhone. Sorry for typos and shorthand.
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