I dont know what the $4500 includes, but you can fairly easily get 1kw of solar and 5kWh battery and inverter for 1k USD.
Assuming ~50M households in Nigeria, and the current cost of ~$4500 to equip a home with solar, the math is still daunting.
- The equipment needed to keep a three-person home running will pay for itself in as little as 16 months, BloombergNEF research shows — but, at $4,500, getting set up costs about seven times as much as buying a new petrol generator. (It’s the generator’s fueling costs that will eventually bite, at roughly $200 a month.)
Related:
Chinese EVs Make Inroads in Nigeria as Gasoline Prices Rise - https://www.bloomberg.com/news/features/2025-02-26/lagos-ev-... | https://archive.today/lMAtD - February 25th, 2025
(if you're looking for a startup idea for YC, consider a way to finance these systems for consumers; go to the bond market for capital, manage credit risk and accepting payments; your TAM is all of Africa's energy needs)
(tangentially, China's solar PV manufacturing capacity is double current global demand, so capacity to produce is not the issue, but getting the clean tech into the hands of those who need it)