You seems to have very cheap energy, here in Poland it's ~0.1$ but coupled with ability to store excess to grid it's quite practical and there's big rush with p

You seems to have very cheap energy, here in Poland it's ~0.1$ but coupled with ability to store excess to grid it's quite practical and there's big rush with people installing solar panels. As you can use this extra elecricity for heating in winter which typically is 500$ to $1K per year (coal vs gas) + 500$ for elecricity per year, this means it pays for itself quite fast (not installed it yet for myself, want to be proven on durability of panels). If you don't have heating/AC need then it's probably less economical yet. Building house here also starts around $50K (not counting land price). BTW land prices rose from 500$ to $500K on nice terrain when asphalt roads where build (in like 15 years span). I am happy that solar panels + storage are getting cheaper as building house anywhere will become possibile. Probably will contribute to faster development of poorer countries/regions with bad infrastructure.