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I know this is an old thread, but I can add some practical experience. As Weldman said LifePO4 batteries don't charge well when they are in below freezing temperatures. I live in a high mountain valley at 8000 feet. It gets and stays cold here from the end of November to late March it never...

I am an active computer computer geek, and can't retire yet (poor financial planning). Skirting the politics of the whole COVID mess, the one good thing that came out of it is it's now acceptable to work remotely, which is allowing me to do just that (I am about as remote as you can get). In...

One thing I forgot to say is avoid the temptation to build a Frankenstein system, buy sufficient batteries to meet your current and foreseeable future needs. Batteries perform best when they are matched, I think a rule of thumb is that your batteries are only as good as your weakest link...

The batteries will be your main expense. LIFEPO4 batteries are the way to go but as noted expensive. Look at it as a long term investment. Start by understanding what your energy needs are. Analyze your bills and look at the months where your electricity usage was highest and figure out...