Quattrohead
Solar Wizard
Yeah that version really should be taken out of the app.
EG4 new AIO rated 12K output and 18kPV aka "EG4-18Kpv-12LV"
- Thread starter Zapper77
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ksmithaz1
Solar / EV Junkie
RE: higher voltage battery input... I disagree. I'm not sure how high, but since EV's are running 400V and up, I'd love to have battery inputs similar to PV inputs, where it just operates on whatever range. This simplifies connectivity to power sources in general, and would make tapping an EV battery much easier. IMNSHO the whole battery/BMS/charging paridigm could be optimized into a plug and play with a modicum of effort, and increasing voltage, eases the cabling considerably. It's not like the basics of this are not already in play at the DC charging stations, and MPPT's.
rakitejada
Solar Enthusiast
Well, it wasn’t what the tech guy told me at first that it was a new version of grid assist, it was not.
Im back to EPS mode, which even though it has its limitations at least i know it really exports 0 to the grid.
Hopefully they can fix this problem and i can get back to grid assist.
Zapper77
Renaissance Man
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Pushing that 12k limit?
rakitejada
Solar Enthusiast
Ha! Kinda
So i have another update, i took @Heritage1 advice and asked to have the 0E:0E firmware installed and they did, so I AM BACK to grid assist and hopefully no grid export ??
It was pretty funny/cool that i was making a video for you guys when they remotely started the update, any questions, let me know, here it is:
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timselectric
If I can do it, you can do it.
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Is that the 18kpv fans that we can here?
rakitejada
Solar Enthusiast
Yes, thats how loud it sounds, without a professional microphone, when its handling 11,000-12,000kw
timselectric
If I can do it, you can do it.
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Seemed very loud. But maybe the microphone made it seem that way.
rakitejada
Solar Enthusiast
Oh no… it IS really loud at 11,000w+
Zapper77
Renaissance Man
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Basically anything under 6k is silent.
*Any combination of PV and Load under 8k is silent
*Any combination of Battery and Load around 6k fans kick in.
*just spit balling numbers...but they are in the range.
As load and/or PV climb past 6K the fans also ramp up in velocity.
Note: Fans will kick on if the inverter hits a specific temperature, even if the inverter doesn't reach the other thresholds above.
timselectric
If I can do it, you can do it.
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Understood.
Just was surprised, because everyone said how quiet they were.
I think it's all relative to what you're used to. I believe some off grid inverters have the fans spinning all the time, so no noise below 6k is nice. Prior to the 18kpv I ran a grid tie inverter so was already used to no noise at night.
But yea, during the day it gets loud with a lot of solar attached. It's in my garage, and I can hear it from outside the house. I'm not sure if it's better or worse than my SB7.7 was - it's a much better (lower) pitch but slightly louder.
I wish they had some sort of temperature based control for it. It's in a conditioned space for me so if the fans turned on only when it got warm it would be on a lot less than if it were in a warmer environment. Or if it's a partly cloudy day, there's no need to spin up the fans full blast only to turn them off 5 seconds later when the clouds come back over.
Zwy
Emperor Of Solar
I went to my Youtube videos for both the EG4 6500EX and MPP LV6548 and compared noise levels as I know I had max PV in a few videos. Max PV coming in is where the fans run at full speed.
That whine in your video makes me cringe. Just crazy.
Gavin Stone
Solar Addict
It’s a slightly higher pitch than the 6500 fans. When at a high PV input the fans will spool up for sure. Not as loud as the 6500’s in my opinion. I’ll have to measure it and compare them. It’s so much quieter all around though.
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Quattrohead
Solar Wizard
Yes it is a different fan noise, more of a groan/hum type noise. But they only run when the unit is north of 6kw of power in or out. I have not heard them running under that load, even in my stupid hot garage. In fact, I asked EG4 about modifying the fan run logic and gave suggestions.
I am bothered by the high temps in the unit when it is under 6kw and then the temps fall 35 degrees when above 6kw.
Also when I turned off the pair of SP6548 there was a massive difference in the noise in my garage, I wondered if my system was down lol.
Now one of the SP6548 is in the new house I am building and that familiar MPP fan howl is back in my life ?
I am bothered by the high temps in the unit when it is under 6kw and then the temps fall 35 degrees when above 6kw.
Also when I turned off the pair of SP6548 there was a massive difference in the noise in my garage, I wondered if my system was down lol.
Now one of the SP6548 is in the new house I am building and that familiar MPP fan howl is back in my life ?
rakitejada
Solar Enthusiast
You are right, i couldnt not sit with my laptop and work right next to it all day. BUT just like everyone has said, under 6000w it seems like its off no sound AT ALL. If you see my videos im usually pushing it near or over 12,000w, thats pretty extreme.
I don’t know what use you will usually put it through, but when i didn’t have this inverter the whole house never went over 6-7kW at the sale time even when charging one of the cars, because i always used to charge at 16amps (which i can still do), but now its just kinda fun to charge at 48amps which i never had the chance to do before.
Another thing is that real youtubers use a microphone and even the cheap $15 wireless mics have noise cancellation, im just keeping it real. I do have a cheap mic and i am sure you will hear a much better sound quality but then again this is a review, i would like to know everything thats real, at least thats how i think.
But in a regular situation im sure users are not going to be at 11,000w+ the majority of the time. I actually love when i hear it humming like that, thats the sound of the money im saving ?
Gavin Stone
Solar Addict
I may try to add some clips with the fan noise and no mic. My problem is it often seems to amplify the noise. When I don’t use a mic in the shop without anything running it has an obnoxious echo that can’t be heard in real life. Its like when I talk with my wife on the phone and she’s working in the kitchen. It sounds like she’s banging on pots with a spoon. The phone just seems to do odd things with ambient noise. ?
I work around mine all day when I’m in the shop and often when it’s bringing in 13kw of solar. And I did the same with the 6500’s. It’s way different for sure. The 6500’s always sounded loud. But with full PV input they sounded like a plane about to take off.
timselectric
If I can do it, you can do it.
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My power room is 20' from where I sleep. De-rating them to 50%. It would take 4 or 5 of them to run everything and be quiet. lol
Zapper77
Renaissance Man
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My base load is 300-500 watts. When the Air Conditioner is running my total load is 2,300 watts.
My PV Input is 8K watts during solar noon, 5k feeds the batteries and 3k towards the loads and the fans are typically off.
timselectric
If I can do it, you can do it.
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Yup
Keep it under 50%, and it's quiet.
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