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Solar power and storage prices have dropped almost 90%
(interestingengineering.com)
This is a most excellent place for technology news and articles.
I did it myself. But I cheated... The main storage unit is a bluetti unit. That runs about 80% of our needs. The other 20% comes from a DIY solution. I built in a couple of Rubbermaid tubs with six volt golf cart, batteries in series and an inverter.