I live here in Nigeria where electricity has been epileptic since I was born (I'm 23 now). Like, I live in one of the nicer suburbs in my state, but 12h of power isn't guaranteed.

So, last year, I spent $7k on 8.4 KW of panels (400W * 21), an inverter, and 20KWh of batteries.

It's been life-changing. I've been able to go completely off-grid. Like, I disconnected from the grid (i.e., my meter) completely. And my usage has gone up to around 50KWh daily (air conditioners, fridges, etc.) but it hums along day-after-day. That assurance that the power won't trip off while I'm on a meeting with a client has done wonders for my mental health among others. Just reliable, stable power.

And, given that I used to pay $0.12 per KWh, the whole setup will pay for itself in 2.7 years. Just under two years to go.