Even at night? This is hardly believable, as the inverter is supposedly shut down at night. Maybe he meant late evening, when the inverter has not shut down yet?
If the utility tech claims he can see meter interference that disappears when he opens the AC disconnect, ask him to try the same test with the DC disconnect. This simulates the inverter state at night.
It is not unheard of that inverters can generate radio interference. We had to replace a pair of PVPowered 5.2 kW inverters a few years back because they interfered with the customer's AM reception so he could not listen to the ball game. The company sent replacements of a newer generation with interference filters installed that solved the problem.
Don Barch
Energy Solar
Message: 11
Date: Sat, 18 Oct 2014 09:34:47 -0500
From: Kristopher Schmid <sol...@legacysolar.com>
To: RE-wrenches <re-wrenches@lists.re-wrenches.org>
Subject: Re: [RE-wrenches] SMA TL meter communication interference?
Message-ID:
<CAJB-iS8=qniQz3LjTJ8XZYTUbABruP-gmA9XJAyr=vmpahs...@mail.gmail.com>
Content-Type: text/plain; charset="utf-8"
August,
The meter is recording correctly in both directions, but they are unable to
communicate with it remotely...even at night. According to the utility
contact, when he opens the PV AC disconnect, the communication is restored.
Kris
On Fri, Oct 17, 2014 at 6:32 PM, August Goers <aug...@luminalt.com> wrote:
> HI Kris,
>
> It sure seems unlikely that the inverter is interfering with the the
> utility meter unless the meter isn't programmed to run backwards? What kind
> of problem is the utility reporting?
>
> Best,
>
> August
>
> Luminalt
>
> *August Goers*
>
> Luminalt Energy Corporation
>
> o: 415.641.4000
>
> m: 415.559.1525
>
> www.luminalt.com
>
>
>
> On Fri, Oct 17, 2014 at 6:51 AM, Kristopher Schmid <sol...@legacysolar.com
> > wrote:
>
>> Hi All,
>>
>> I seem to remember seeing this posted a while back, but i was unable to
>> get the archive search function to work on my browser.
>>
>> I have a recent install of an SMA SB5000TL-US-240VAC where the utility is
>> claiming that the inverter is interfering with their communication with the
>> meter. Anyone have experience with this? Solutions?
>>
>> Thanks!
>>
>> --
>> Shine On!
>>
>> Kris Schmid
>> Legacy Solar, LLC
>> 864 Clam Falls Trail
>> Frederic, WI 54837
>> www.legacysolar.com
>> 715-653-4295
>> NABCEP Certified PV Installer
>> Licensed Wisconsin Master Electrician
>> BSEE
>>
>> _
--
Shine On!
Kris Schmid
Legacy Solar, LLC
864 Clam Falls Trail
Frederic, WI 54837
www.legacysolar.com
715-653-4295
NABCEP Certified PV Installer
Licensed Wisconsin Master Electrician
BSEE
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