I didn’t say it did. 3 options. The OEM are selling a product that isnt code
complaint, doubtful. Or it is included in the UL listing or there isn’t a UL
standard for this to test to.
I don’t have time but a call to the companies that list this feature would
clear it up.
Jay
Peltz power.
Sol Ark told me they would provide a letter to any utility or jurisdiction if
that would help alleviate there sell back fears.
Sent from my iPhone
> On Mar 31, 2021, at 5:51 AM, Jay wrote:
>
>
> A number of companies have this feature which is under their UL listing.
> SE
> SolArk
> To
I think this highlights my point. Zero export is not "really" zero export
in this case and the use of a third-party energy meter to provide net
consumption data would surely not qualify the inverter as a listed device
for this purpose. While I'm sure most utilities will accept an inverter
designed
Does UL1741 cover zero sell? I wasn't aware of that. I thought it just
covered anti-islanding. If zero sell is covered, I don't see why a utility
would not accept that.
On Wed, Mar 31, 2021, 11:51 AM Jay wrote:
> A number of companies have this feature which is under their UL listing.
> SE
>
Hello Greg,
As Will mentioned, this mode of operation is doable with SolarEdge, but it
will require some additional hardware—specifically, you will need an energy
meter as well as CTs for each power phase.
Here is some documentation to get you started:
- Export Limitation brochure
Oh, for certain. Enphase has specific grid profiles (software) to
accommodate utilities with zero export rules. It's my understanding that
this is widely accepted. Other manufacturers support zero export, too. Even
battery manufacturers are in on this, like Tesla Powerwalls can have zero
export
A number of companies have this feature which is under their UL listing.
SE
SolArk
To name 2.
Are you saying that the UL listing isn’t enough and that it needs 3rd party
testing.
If so what organization/testing would that be?
Jay
Peltz power
> On Mar 31, 2021, at 8:27 AM, Jason Szumlanski
On the other hand, utilities /have/ accepted inverters to shut-off power
production into the grid if the grid fails via, I assume, software
and/or electro-mechanical means.
Bill
Feather River Solar Electric
Bill Battagin, Owner
4291 Nelson St.
Taylorsville, CA 95983
530.284.7849
CA Lic 874049
I wonder how quick these software based approaches are to respond to loads
that drop off and momentary selling that may occur before production is
curtailed. I think what Greg may be asking is whether there is a failsafe
method to prevent backfeed. Without a battery, I'm not sure how that would
be
Many inverters have the option to zero-sell (no export to the grid) but you
need an additional CT on the main service conductors so the inverter can
monitor the loads and ramp down production if it starts to get close to
producing more than the loads require.
I'd suggest getting into the manuals
Wrenches, I've got a small system using SolarEdge inverter (4 kW) that
is supposed to go in to a small town that does not allow selling power
to the grid. That may change but that is how it stands now. The
customer wants to use the power that is generated but can not sell or
even give excess
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