[RE-wrenches] Strange Question: 1-Panel System

[Jason Szumlanski]

Yeah, I was thinking about using a "spare" Enphase IQ Gateway for this. We
have a bunch of old Gateway 3 and 4 that we replaced with 5 to accommodate
new battery installations. One of these used Gateways should suffice. I
will try this with the Shelly suggestion that Glann made for long-term
monitoring to make sure it keeps ticking.

Thanks, all!


Jason Szumlanski
Principal Solar Designer | Florida Solar Design Group
NABCEP Certified Solar Professional (PVIP)
Florida State Certified Solar Contractor CVC56956
Florida Certified Electrical Contractor EC13013208


On Sun, Oct 26, 2025 at 1:10 AM Jerry Shafer via RE-wrenches <
re-wrenches at lists.re-wrenches.org> wrote:

> Jason,
> Just go with the enphase and just the EMU  (Enlighten Monitor) not the
> combiner box and let it fly, easy to add later on if so desired, I would
> stay away from these off brand products, Ya I know enphase has its issues
> too, BTW do you need a dedicated monitor, I have used one that i moved from
> site to site instead, it was a little bit of a pain but helped
> Fun times
>
> On Sat, Oct 25, 2025 at 10:44 AM Jason Szumlanski via RE-wrenches <
> re-wrenches at lists.re-wrenches.org> wrote:
>
>> I love the idea of the Shelly for monitoring. That could be the solution.
>>
>> I can't do plug-in because I need to get a permit and inspection to get
>> the interconnection agreement processed.
>>
>>
>>
>> On Sat, Oct 25, 2025, 12:26 PM Glenn <glenn.burt at glbcc.com> wrote:
>>
>>> Have you seen the ads for the new plug in the wall PV panels? Apparently
>>> they are common in Europe and are working their way here.
>>>
>>> Do the new generation of microinverters require a gateway now? I have a
>>> couple of panels running off m250s for years with no direct monitoring. I
>>> do have a Sense monitor on my house and can see it's effect on my usage.
>>>
>>> If you can use a current micro without the gateway, a company called
>>> Shelly sells inexpensive DIN rail power monitors with wifi and BT connection
>>>
>>> -Glenn
>>>
>>> On Oct 25, 2025 12:13, Jason Szumlanski via RE-wrenches <
>>> re-wrenches at lists.re-wrenches.org> wrote:
>>>
>>> Okay, this is going to be a strange question. I'm looking for the lowest
>>> cost way to install a single solar panel and inverter that is grid tied. i
>>> need it to be grid-tied and it needs to be monitored in some way. I'm
>>> thinking a microinverter is the way to go, but I don't want to buy a $600
>>> Enphase Gateway to make it happen.
>>>
>>> Since someone is probably going to ask, I will go ahead and explain. A
>>> local utility company has a top marginal residential energy use rate of
>>> about 15 cents per kWh. The first and second 500 kWh monthly are billed at
>>> a slightly lower rate. However, when you enter into a netmetering
>>> agreement, the switch you to a "blended" rate, which is currently 9 cents
>>> per kWh, regardless of what you net energy use ends up being.
>>>
>>> You might see where I'm going here. Installing a single netmetered panel
>>> reduces a customer's marginal rate by 6 cents a kWh. This could be a
>>> substantial savings, particularly for heavy energy users.
>>>
>>> I have people interested, for obvious reasons.
>>> --
>>>
>>> Jason Szumlanski
>>> Florida Solar Design Group
>>>
>>>
>>>
>> Jason Szumlanski
>> Principal Solar Designer | Florida Solar Design Group
>> NABCEP Certified Solar Professional (PVIP)
>> Florida State Certified Solar Contractor CVC56956
>> Florida Certified Electrical Contractor EC13013208
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