Berlin-based climate research institute Mercator Research Institute on Global Commons and Climate Change (MCC) has released a new study indicating that, in the last decade, the cost of solar power has dropped by 87 percent, and the cost of battery storage by 85 percent.
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.