re: #120 abolitionist
Fascinating. Another strategy (besides batteries) for storing energy would be simply to climb to higher altitude, and later regain it by gliding. Might not get you thru the night; there are limits/tradeoffs.
A great glider can do a 20:1 glideslope. If they’re flying at 80mph, that means they’d be going down at four miles per hour.
So you might get an hour or two. You couldn’t go all night.