I grew up in a rural house that is off grid. My parents used to run a gasoline generator whenever they wanted electricity. As kids, to watch movies, this was all the time. As they got older, got phones, satellite internet etc their gasoline use went up a lot.

They had solar since the 90s but it was broken panels (which still work, they basically never die). Finally last year I had the time and money to put in a big new solar setup for them. Now they don't need the generator except during prolonged storms in December (even then I don't think they need it, just like using it).

The main benefits: 1) Pays for itself in 3 years 2) No more gasoline generator (loud, smelly) 3) No more trips to get gasoline. No more parents carrying 5 gallon gas cans around. 4) Allows parents to get A/C for first time.