Comment by worldsayshi
15 hours ago
> There is also the need for real estate in areas with good sun exposure that also have sufficient fresh water supply for cleaning.
Solar panels are 20x more efficient than growing corn for ethanol. Swap out some of those 30 million acres of ethanol corn fields (in the US) and you'll have more energy than you need.
More details here: https://www.youtube.com/watch?v=KtQ9nt2ZeGM
Utility scale PV farms should be seen as literally harvesting solar power, not generating it, while still allowing other agriculture like sheep grazing to occur using the same fields.
You plant a PV panel and add its irrigation (power interconnect) and remote monitoring, then you harvest power for the next 25+ years.
Ethanol production excess is a specific US problem because of the misalignment of incentives and lobbying.
I’m all for it — converting just a third of that land to solar would be enough to power the grid in terms of raw output — but there is still a huge, unsolved problem of energy storage that scale. Without that you’re only powering your data center for five hours a day.