New System Questions

I am a Newbie and trying to pull the trigger on an All IN One Inverter System, batteries, and Panels while it appears they are still in stock.
My primary concern is to keep my 3 freezers running and power a few other devices during the day for brief periods if needed. I ran a Kill a watt on 3 freezers for 12 hours and got a 2.15 KWH reading. All freezers are 120 V Appliances.

Battery Sizing reccomendation/Calculations -- I was thinking 3 Days backup

Initial Plan on Panels 200W Rich Solar Panels, Number to fit Inverter Input I choose

Was looking at 3KW 48 V MPPT Solar or 3KW 48W Growatt Unit , As a newbie any preferences on which would be a better choice.

I live in Central Texas(Austin Area) in middle of 100 acres but quite a bit of shade from large oaks around house so may have to mount panels up high or far away from house.

Any inputs this group could offer for me to consider would be appreciated before pulling the trigger on a large purchase .

Measure the starting, "in-rush" current of your freezers, and first make sure whatever inverter you buy and handle the starting surge. Some may not. I would not buy any inverter that did not have at least a 200% starting surge for at least 5 seconds.

MichaelK said:

Measure the starting, "in-rush" current of your freezers, and first make sure whatever inverter you buy and handle the starting surge. Some may not. I would not buy any inverter that did not have at least a 200% starting surge for at least 5 seconds.

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Which pretty much means low frequency inverter.
Which pretty much means inverter/charger.
I can't think of a discrete low frequency inverter.

Check out DavidPoz'z youtube channel, I remember he did a review of a honkin LF inverter unit that actually handled his miter saw without batting an eye. I don't remember if it was an AIO or not and I don't have enough internet speed to check, but hopefully it points you in the right direction.

smoothJoey said:

Which pretty much means low frequency inverter.
Which pretty much means inverter/charger.
I can't think of a discrete low frequency inverter.

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I'm not sure what a "discrete low frequency inverter" means? Can you go into a bit more detail here?

MichaelK said:

I'm not sure what a "discrete low frequency inverter" means? Can you go into a bit more detail here?

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Discrete = inverter only without an integrated charger and automatic transfer switch.

smoothJoey said:

Discrete = inverter only without an integrated charger and automatic transfer switch.

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Besides cost savings, is there any advantage to that? I see what you mean and yes, it seems that all the serious low frequency inverters have both those extra capabilities, Schneider, Outback, Magnum, Evo. I consider those features perks?

MichaelK said:

Besides cost savings, is there any advantage to that? I see what you mean and yes, it seems that all the serious low frequency inverters have both those extra capabilities, Schneider, Outback, Magnum, Evo. I consider those features perks?

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IMO the advantages are with the inverter/charger.
In addition to a big iron transformer the Inverter/chargers typically have a microprocessor which allows them lots of features and granular configuration.
The also typically have an automatic transfer switch that syncs the inverter to the mains so that the cut-over is seamless.