Hello from Atlanta Georgia USA

[Nef003]

Hello all. Would like to say I am very happy to be here; and having just discovered “Will” I am more than excited to be part of this knowledge group forum. I am amazed at how much wisdom this young man has; not sure how old he is but I am 36 and just in awe of his knowledge. I’d definitely love to learn more of him and from him. I’m considering supporting by buying his book.

My goal here is to finally be able to afford batteries since I have had this on going project for now 5 years and only thing left are the batteries and BMS.

5 years ago I bought 4 x190W panels. I believe there were single cell poli; not sure. Also bought a 40A Epsolar charge controller 2nd hand from eBay. around 4 years ago. I also bought a 48volt 2000 watt pure sine wave inverter 2nd hand but NIB.
Also have a 100A Transfer Box bought from craigslist NIB 2 years ago. I also bought a HF 1k watt square wave inverter.

I was also stocking up on car batteries because I was going to buy some lead acid batteries; but seeing will videos has lead me to better pastures. I just finally hope to complete this setup by next year.

Why has it taken me so long? $ isn’t that why we do it? To save more $?

My daily electricity usage is 20-30kwh. Comes to about 600-800kwh a month. I only have 4 panels at 190watts - but in time I’ll continue to increase and add more batteries.

God bless you all; and I am
a firm believer of Jesus Christ
John 3:16-17
For God so loveth the world, that he hath given his only begotten Son, that whosoever believeth in him, should not perish, but have everlasting life. For God sent not his Son into the world, that he should condemn the world, but that the world through him might be saved.

 

[svetz]

Welcome Nef003!

If you're going to add batteries over time you might like this thread: Incrementally adding DC batteries

 

[Nef003]

i know this is about extending battery life as long as possible by avoiding the pit falls of user error or abuse. At least is what I understood.

Now my 2c -
keeping in mind that the end goal is to have as much storage capacity as possible: ok. Yet wouldn’t it be simpler to have separate usable battery banks via a transfer switch or app which would switch once the load drops or increases to a certain point?
This would also apply to charging. Say for example 3 different banks; two being used while other charges? May be more expensive but could be done over a course of 3 years or more; keeping batteries with similar and minimal internal resistance. Probably even separable charge controller for each bank if $ permits it.

Or am I wrong?

 

[Nef003]

Welcome Nef003!

If you're going to add batteries over time you might like this thread: Incrementally adding DC batteries

Replied to the article via above question.

 

[svetz]

..wouldn’t it be simpler to have separate usable battery banks via a transfer switch or app which would switch once the load drops or increases to a certain point?...

Interesting thought, seems doable but wonder at the price of the high-amp DC relays to swap the battery banks. The other way to handle that is with "AC batteries" ( A DC bank with a synchronous inverter) and there's a discussion on that here: Incrementally Adding AC Batteries
(although a lot of that discussion is mixed up with an AC coupling grid-tied solution and the special problems it brings).