Except you missed the point, which is that solar PV systems have been posting compounding gains in terms of power output per $ for 35 years. No other energy sou

Except you missed the point, which is that solar PV systems have been posting compounding gains in terms of power output per $ for 35 years. No other energy source I am aware of is becoming ~15% cheaper per year. I'll assume that most of the people here are familiar with compounding interest and its implications. The point isn't that solar energy is disruptive today, it's that it will be in the not distant future. It's sort of like cellphone technology. It started out as a niche technology that hardly anybody used (even in San Francisco circa 2000, I know eons ago, people outside the tech industry didn't use them, now everyone has a smartphone). I put my money where my mouth is on this, and retrofitted my pre-WWII home with solar some eight years ago. Even then, the amortized cost of the solar array was 50% less than what I paid to PGE for grid power, and I basically have a net zero electric bill. Maintenance? A couple times a year I go up on the roof and hose the panels down to wash the dust and pollen off (no moving parts, etc). That and I make a point to double check that a meter reader hasn't flipped the safety cutoff switch. Other than that, I don't do a goddamn thing and my house generates about 75-80% of its power.