Have you looked into diy? Over 60% of the installation cost from an installer can just be labor which is ridiculous because it’s actually quite easy to do. Safely and without a ton of specialized tooling. They have inverters now that’s basically everything you could possibly need in a single box which makes the install trivial
I remember looking into solar some 20 years ago. 5kWh battery bank was practically unheard of and iirc correctly was roughly $1k per kWh. Hopefully somebody with the time can come and correct numbers. Today you can find 5kWh battery banks for ~$2k.
Inverters I remember being about $5k-$10k for house sized and capable of running AC unit. Today roughly $1k-$2k.
Solar panels themselves I’ve not priced, but iirc I remember large arrays being $20k-$30k or more.
The cost to DIY a whole home off grid solar and battery bank system has gotten beyond easier, safer and an absolute fuck ton cheaper
