Hi Jason,
I went back and forth bunch of times with Enphase in late 2020 or early
2021 on this very issue. Maybe Nick can weigh in if my information is
out of date, but what I found is that Enphase uses a 15 minute net data
register for energy import/export in their Envoys system monitor,
Ferrite beads, cores and rings are NOT all the same. The RFI frequency
ranges they can suppress differ depending on the "mix" of powders used in
their manufacture. I carry a variety of them in my truck, some of each type
(ring, snap on core) and of Mix 31, 65 and 75. And a big cheap pack from
Jason,
Since the difference is not a consistent percentage, I'd look at the
consumption meter settings. Make sure that the solar energy is accounted
for correctly: either included or not included with the consumption
metering.
Kent Osterberg
Blue Mountain Solar
On 10/27/2022 8:59 AM,
> ...A cheap solution that we have had some success
> with is to put ferrite core snap together chokes around L1 and L2 PV
Lars,
If your company installs SMA Core1 inverters you'll find these ferrite
chokes inside every box of them in the bag with the amphenol connectors and
other miscellaneous
I received this question from a non-client:
*On a daily basis, FPL [Florida Power and Light] (per their app)
consistently shows a 20 to 40% (higher) difference in what they delivered
and received vs what Enphase app shows as imported and exported. My
installer can not explain why. Any ideas?*
Hi Lars,
It is likely that the IQ8 micro's are more subject to line noise then
previous models. We've had line noise and comm's issues in the past
with IQ 7's as well. A cheap solution that we have had some success
with is to put ferrite core snap together chokes around L1 and L2 PV
input
Seemingly out of the blue we've had a number of installs (all IQ8) that are
having Line Noise issues preventing the MIs from communicating from the
Envoy. In both of our recent installs they are not in neighborhoods that
have a number of systems, and the issue is not finding too many, but
finding
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