Hi Jay,
I would not mind looking at it but there is not much PV ! I would put
money on the people living there are using it all. Or clouds on the day you
looked. One of the things I really like about Insight is it give me the
site weather. I have not looked at optics in a few years and that means
probably 5 years....Does it show weather now?
If you and Outback do not see any thing obvious a trip there may be a
good idea. As Nick asked what did they use on the bad days? That should
give you an idea. Could be a string opening and since it is probably on a
roof, I do not envy you!
Southwest monsoon moisture up here today. Dry strikes are not needed!
Cheers !
Dave Angelini Offgrid Solar
"we go where powerlines don't"
http://members.sti.net/offgridsolar/
e-mail offgridso...@sti.net
text 209 813 0060
On Sun, 18 Jul 2021 13:31:36 -0700, Nick A Lucchese <luccheseso...@me.com>
wrote:
> Greetings Jay,
>
> How much does the house consume as a base load? I imagine if you
remotely
> instruct your customer to open all the breakers on the standby load
panel
> you’ll lose connectivity with Opticsre?
>
> When you go back and look at the history over the last four months does
> the behavior seem consistent?
>
> Three 60 cells in series or what’s your PV configuration?
>
> Do you have intimate knowledge of the site’s electrical infrastructure
or
> was it someone else’s job?
>
> Nick
>
>> On Jul 18, 2021, at 12:17 PM, jay <jay.pe...@gmail.com> wrote:
>>
>> HI All,
>>
>> I”m trying to diagnose the following system I didn’t install.
>>
>> 4 year old system grid tie battery back up.
>>
>> Radian 4048
>> flexmax 80
>> 3500 watts PV
>> fndc
>> it is on opticsRE
>>
>> The symptoms are that its not selling much at all. Mostly when it is
>> about 1kw max PV production and .8kw selling. I have disconnected the
>> FNDC and after that it did seem to work better.
>>
>> Usually it will sell a bit, then buy a bit then sell and so on. Grid
>> voltage is very constant at around 246vac.
>>
>> I’ve been through the settings a few times with tech support, made
>> adjustments and for a while it was selling pretty normally, but again
>> today 0 production, CC is at float.
>>
>> I have not been to the site, I was just trying to do this all by
optics.
>> But I’m going to have to go. I think there are 3 possible issues.
>>
>> 1. the customer has always thought the production is low. And from
what
>> I’ve seen that is true. This is in a very sunny place, no shade so
with
>> 3.5kw, 1kw is very low which I think they may have a few strings of
the
>> array are not connected. However why that bothers me is that the
VOC/VMP
>> voltages are too close in looking at the CC. Which leads me to think
its
>> been told to back off to the 1.0kw, by some setting, see #2. And its
>> always around .8 selling and around 1kw output from the array.
>>
>> 2. There is a programing issue.
>>
>> 3. There is a hardware issue.
>>
>>
>> If someone wants to look at the site, I have the info and they can log
>> in.
>> Or if they want to provide settings for me to triple check, that would
>> be great
>> and
>> if they have any ideas as to why its acting like it is, very much
>> appreciated
>> So far even though tech support has viewed in on Optics and have had
>> some recommendations as to settings, its not fixed the issue.
>>
>> thanks in advance,
>>
>> jay
>>
>> peltz power
>>
>>
>>
>>
>>
>>
>>
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