Doug,
Enphase has suggested that solution and its a good one if the utility is
cooperative. Of course, they are under no obligation to be cooperative,
or to remain so. And unfortunately it looks like all the neighbors'
meters being served by a common transformer, and maybe even more beyond,
a
That's a brilliant solution, if the utility is cooperative.
On Mon, Jul 9, 2012 at 6:52 PM, Doug Wells
wrote:
> Kent,
>
> I went through a similar situation with an Enphase system. With a little
> discussion we decided that the easiest change is on the Utility side. We
> encouraged the utility
Kent,
I went through a similar situation with an Enphase system. With a little
discussion we decided that the easiest change is on the Utility side. We
encouraged the utility to put all solar systems with Smart metering on a
different schedule. Now the solar residence is only pinged at night
Kent,
Typically the manufacturer is not to anxious to change the parameters
outside those set out in the UL 1742 standard. However, for this, I suspect
that is what is needed. They will probably need you to sign a waiver first,
which is what we had to do with SMA.
Do you have a scope to look at th
Chris,
Enphase has the ability to remotely adjust the voltage and frequency
operating windows. They have adjusted them as far as they can, or will.
I have some SMA Sunny Boy inverters in locations that recently have
TWACS remote reading systems installed. Most don't have remote data
monitori
Yes, I expect they can. The greater issue is going to be whether the other
inverters are going to react also. Have you had any experience with other
inverters in this scenario?
I don't undertand why the meter manufacturer can't ensure the burst is
filtered out of the load connections. They have to
eds to sit down
with the monitoring industry to create a workable answer.
Dan
--- On Sun, 7/8/12, Kent Osterberg wrote:
From: Kent Osterberg
Subject: Re: [RE-wrenches] Smart grid grid-connected compatibility
To: "RE-wrenches"
Date: Sunday, July 8, 2012, 7:40 PM
C
Chris,
SCRs are capable of creating voltage spikes that cause noise well into
the radio frequencies. But with TWACS there is an inductor in series
with the SCR that is tuned such that the pulse caused when it fires is
0.5 ms to 1.0 ms wide with very little high frequency content. Because
the
Kent,
I haven't any direct experience with the smart meters tripping inverters,
but the issue of SCRs and generators is well known. I suspect you
understand the problem, but to recap it, the problem revolves around the
way SCRs make a sine wave.
A motor driven generator controls the alternator outp
Wrenches,
There weren't very many replies to my question about grid-connected
inverter compatibility with utility remote meter reading systems so I'll
explain my recent experience with hope that this information may be of
assistance sometime.
Last fall I installed an Ephase system for a cust
Fellow wrenches,
I've got a question for those wrenches that have grid-connected
inverters in locations where the utility uses remote meter reading
technology - hey it's going to be everywhere soon. Are you seeing
compatibility problems with grid-connected inverters and the utility's
meter re
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