[RE-wrenches] Ac Coupling

[Howie Michaelson]

I've liked the StorEdge design of SolarEdge since it was first introduced a
few years ago, but have never done it even seen an instant with it. What
are others experience with it, especially compared to AC coupled battery
backup solutions?
Howie

On Jul 25, 2018 8:18 PM, "Scot Arey" <scot.arey at solarcentex.com> wrote:

Yes I had also heard from Outback  that AC Coupling not supported.

Too bad because the AC coupling load center was slick setup and integration.

Scot

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On Wed, Jul 25, 2018 at 10:29 AM -0600, "Kelly Keilwitz, Whidbey Sun &
Wind" <kelly at whidbeysunwind.com> wrote:

Larry,
> I recommend considering retrofitting the SolarEdge “StorEdge” Li-ion
> battery. It’s a high-voltage battery on the PV side of the inverter. We
> have a few out there now for a few months without a problem. Really like
> the design concept of the storage on the PV side, increasing system
> efficiency.
>
> We’ve done quite a few AC-coupled systems, which Outback FX, Outback
> Radian, and SMA Sunny Island/Sunny Boy. The Outbacks require a cutout
> relay. We won’t do Radian AC-coupling any more, as the setup,
> documentation, and support is a royal PITA, and have had failures in the
> “ROCB” automatic cutout breaker. Even when the ROCB doesn’t fail, it often
> cuts out when it isn’t supposed to, like at the start/end of a float cycle.
> My understanding is that Outback doesn’t support AC-coupling any more with
> the Radian.
>
> Kelly Keilwitz, P.E.
> Principal
> Whidbey Sun & Wind
> Renewable Energy Systems
> NABCEP PV Installation Professional
> WA Electrical Administrator
> office: 360.678.7131
>
>
>
> On Jul 19, 2018, at 07:07, Larry Brown <sunmountain at netstep.net> wrote:
>
> Does anyone have a recommendation on a battery based inverter to AC Couple
> with a Solar Edge 11400A-US Inverter that is already installed?
> I have been working a lot with the Schneider Conergy XW+ Inverters for off
> grid but have no experience AC Coupling them with a Solar Edge Inverter
> Any recommendations?
>
> Thanks
> Larry
>
> Larry Brown
> Sun Mountain
> 845-657-8096
> Sunmountain at netstep.net
>
>
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