I worked with a company in LA for a while, and a pretty clever guy (no, for real - he was kind of the opposite of stupid) once argued against me when I said, listen, you have all those flat roofs, I mean, the major part of El Segundo is like that, and you have sun going crazy 12 month a year, plus you need a ton of electricity for all the ACs, why the heck don’t you put solar everywhere…

And he was „nah I don’t think it will pay off… I mean you need to replace them after 20 years or so, don’t you…“

Me, looking at my measly 900W solar array in Germany, providing for much of my basic electricity needs while it’s pretty dark here like 80% of the year o.O

Well, that was 10 years ago. I hear things have changed…