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I'm so stupid my wife is going to kill me.
#11
not2bme u said, I use a 2424LV-MSD right now and it runs most of my loads in my house. It all depends on what you consider small loads. For example my fridge only takes 200W to run but during start-up it probably spikes up to 1500W easily. If I had an existing load of1000W and the fridge kicks in, it will trip the inverter. I have it set to switch back to grid when that happens, and in 10 minutes it will switch back to battery. Same goes for my 3/4 HP pool pump. It takes 700-900W to run, but the starting surge is too much for the PIP.  So for the first 10 minutes it runs on grid then it flips back to battery for the rest of the day. All those above mentioned are inductive loads. Resistive loads like toasters/computers/tv/stereo are fine and doesn't exhibit those surges. I also have a 12000btu mini-split A/C that works off a inverter compressor, so it doesn't cold start like a normal window unit a/c, and that works very well with my PIP.

The question now is the 48V. I've been running 24V and it does liimit you in the future, as larger units tend to be 48V. So less upgradability. But seeing I bought my 2424LV for $550 shipped, it's not really a heavy investment for something that has everything built into it. My house over the winter uses 15-20kwh daily and it's running like a champ. But I purchased this unit 3 years ago, and now I see Mppsolar has a 48V version. I have no idea how much it costs and may be worth looking into...
https://www.mppsolar.com/v3/lv-mk/.

The AIMs may be built tougher, with more surge handling capability. The downsides is that you still need to purchase a MPPT charge controller, so added costs.
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So your inverter trips everytime your surge is too high, then your power supply for loads switches to grid power? Is that ok to trip your inverter that often? Also how does a fella add that function to his setup if it’s ok to trip inverter that often?
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#12
(03-25-2020, 04:27 PM)OffGridInTheCity Wrote:
(03-25-2020, 04:15 PM)elkeith108 Wrote: So with the Aims I would have to spend about $1,000 (including    mppt charger) and $550 for mpp solar. I think a UL1741 listed inverter is required to hook up to my grid. I would have purchase the AIMS 6000w UL1741 inverter for about $3500. I will ask the wife and see what she says. Thanks for all the help.
Just to be clear - the AIMS I listed above is not for grid-tie, its for off-grid applications and the 6000w is not $3500 - its more like $1700.

BTW - To get my wife to approve my solar purchases,  I went on a wine/dine mission - and it not only got me approval to spend (and I did buy some bad things, blew up some things also) but also a happier marriage!   So see - solar can have side benefits Smile
I'm sorry I thought the only reason to get a ul listed inverter was to grid tie( I am so stupid). So here is another question would I be able to use the same solar panels to feed an off grid inverter and a grid tie inverter at the same time or with some type of a switch. I have found a grid tie that has input of 90v and is only $500 that is UL1741. I told my wife this system would pay for itself and promised her the world and it wouldn't cost that much, she still wants new floors.
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#13
Yes u can use same panels to feed grid tie inverter and an offgrid inverter.. they both would have to be powered by batteries. The panels just supply power for batteries and then u can draw off the batteries for power for as many inverters as u want.
Which gridtie inverter did u find that’s UL conformed and is only $500
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#14
(03-25-2020, 04:49 PM)elkeith108 Wrote: Well that was fun. She said so one is $500 and one is going to be $1000 what is the difference, and I'm like the one is 2400 watts the other is 2000 watts, this one  is an all in one unit the other I would have to buy a charger this one has a software program. I told her the Aims was better she said what makes it better and that I should just get the $500 one. So my question is why is it better, I had no response except for build quality. And should I just get the 2424lv and would it work with the generator transfer switch.
So the thread is a bit fuzzy for me.  If you asking - should I buy MPP Solar vs AIMS I have no objection.   I can only attest that AIMS works well for me.  I do not have hands-on with PIP (e.g. MPP Solar)  but folks like HBPowerwall and others comment well on them.      I think a key question is what you plan to run.  

Things like power tools (e.g. like a table saw) require larger start-up amps where as refrigerators are not as big a deal and computers, hot plates, microwaves are all fine (don't have surge).   So I would figure out what you plan to run and just verify that what you buy is adequate.
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#15
(03-25-2020, 05:11 PM)Doin it Wrote: Yes u can use same panels to feed grid tie inverter and an offgrid inverter.. they both would have to be powered by batteries. The panels just supply power for batteries and then u can draw off the batteries for power for as many inverters as u want.
Which gridtie inverter did u find that’s UL certified and is only $500

Aurora-Powerone-PVI-3.6-3600W-Solar-Grid-tie-inverter-2MPPT $525 on ebay. But I am talking about using the pv wires from the solar panels and connecting them directly to each inverter in parallel to the 2424 and the Aurora Powerone or using a switch to change which inverter the panels are feeding is this possible, it sounds possible in my head.
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#16
(03-25-2020, 06:06 PM)elkeith108 Wrote:
(03-25-2020, 05:11 PM)Doin it Wrote: Yes u can use same panels to feed grid tie inverter and an offgrid inverter.. they both would have to be powered by batteries. The panels just supply power for batteries and then u can draw off the batteries for power for as many inverters as u want.
Which gridtie inverter did u find that’s UL certified and is only $500

Aurora-Powerone-PVI-3.6-3600W-Solar-Grid-tie-inverter-2MPPT $525 on ebay. But I am talking about using the pv wires from the solar panels and connecting them directly to each inverter in parallel to the 2424 and the Aurora Powerone or using a switch to change which inverter the panels are feeding is this possible, it sounds possible in my head.
U can’t run an offgrid inverter directly from panels, that aurora is a high voltage inverter, not 90v. I think it said 120v minimum input voltage from pv
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#17

Is the operating voltage 90v to 580v dc. I would have a 7s80p battery hooked to the 2424lv. Or should I go another way.
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#18
U right. It did say something about needing 120v, maybe that was for the mppt
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#19
(03-25-2020, 05:41 PM)OffGridInTheCity Wrote:
(03-25-2020, 04:49 PM)elkeith108 Wrote: Well that was fun. She said so one is $500 and one is going to be $1000 what is the difference, and I'm like the one is 2400 watts the other is 2000 watts, this one  is an all in one unit the other I would have to buy a charger this one has a software program. I told her the Aims was better she said what makes it better and that I should just get the $500 one. So my question is why is it better, I had no response except for build quality. And should I just get the 2424lv and would it work with the generator transfer switch.
So the thread is a bit fuzzy for me.  If you asking - should I buy MPP Solar vs AIMS I have no objection.   I can only attest that AIMS works well for me.  I do not have hands-on with PIP (e.g. MPP Solar)  but folks like HBPowerwall and others comment well on them.      I think a key question is what you plan to run.  

Things like power tools (e.g. like a table saw) require larger start-up amps where as refrigerators are not as big a deal and computers, hot plates, microwaves are all fine (don't have surge).   So I would figure out what you plan to run and just verify that what you buy is adequate.

Fuzzy, I can't even see straight. I would not be using any power tools on this system this would hopefully only be used for my wife's office, my daughter and sons laptops for school and maybe my cpap machine. Sorry to make it so confusing I really don't want to get the wrong system for my needs.

(03-25-2020, 08:42 PM)Doin it Wrote: U right. It did say something about needing 120v, maybe that was for the mppt

I guess I have to ask what is the max voltage of panels the 2424lv can take and what is the minimum the Aurora can have.
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#20
I went ahead and ordered the mpp solar 2424LV MSD. The said it was on back order until mid April which sounds great under the circumstances.
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