Complete guide for 48V using EG4 18k

calc30 said:

Meter - GreenLancer put a third meter on my plans, does that seem correct?

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Not sure. It depends on what the POCO rules are for your solar tariff. It also interacts with things like REC credit rules. It might have to do with the fact that you have EV charger there on the main panel. Extra meters let them determine the specifics of how much you generated, consumed, and imported/exported.

I wonder if they’ll still require all those meters even if you take the EV charger out. If they are worried you are going to add loads in the main panel again.

It’s also possible Greenlancer is being overly conservative and spamming stuff in to guarantee it passes POCO and AHJ review.

There are a few folks here on forum from Arizona that might be able to help.

calc30 said:

Interestingly, they put the Sol-ark15 as my inverter and the Eg4 as my battery.

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EG4 isn’t a SolArk battery partner. No 9540 and finger pointing tech support may result.

calc30 said:

he works for a local company in Phoenix, to look them over the plans and he is it seemed
complicated. I'm guessing he doesn't want to work that hard.

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Hybrid setups are already pretty complicated and your subpanel/metering is up there in complexity. You’re going to have a lot of crap up on the walls.

Another thing is that when you install a hybrid your house/property electrical kind of becomes the complexity of a small factory. OTOH in places with terrible power grids this complexity is normal. Everyone has solar and generators.

FilterGuy said:

Folks. One thing about the 'simpler' diagram is that I should have shown the AC disconnect as a fused disconnect.

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Another point is that the EG4 diagram shows a transfer switch. The transfer switch is a handy addition that allows you to bypass the inverter for maintenance.

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i don't see the double throw safety switch as per manual specification.

sunshine_eggo said:

Terrible Signature Solar / EG4 18Kpv Experience - Returning and Replaced with Sol-Ark 15k

I take no joy in writing this, I sincerely wanted to love this new inverter and to support an active business on the forum, but I cannot sit silently and pretend this unit is "flawless" and anywhere near ready for the real world. I am not alone, I have received many messages from other members...

diysolarforum.com

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Was the issue with the EG4 18kpv described in that thread resolved? Did they come to the conclusion it's hardware or firmware/software issue? That thread was massive. I read all the messages on the first 10 pages and the last few pages.