alt Hacker NewsHN is probably over-indexed on people living in high-density cities, which might explain why tech like this and also things like vertical farming are popular here. However there's almost no dimensional constraint for farmland in the United States. We have vast amounts of it and there's really nothing to be gained from "stacking"
Often these "solutions" introduce more problems than they solve. One example being a solar farm designed to be grazed by sheep where the panels are so low to the ground that farmers can't bring in tractors and cut hay when the ruminants are gone for a season.
The best solution is still to put solar panels and farmland in different places where each can be optimized without concern for the other.
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Huge isolated fields of solar end up with the same problem as nuclear: they introduce multiple single-points of failure.
The source can be attacked, the transmission infra can be attacked, the delivery point can be censored.
I think most people want highly distributed, reliable, affordable power. That's why off-grid tech is experiencing such a boom.
I live in a 36' skoolie, so I'm nomad-indexed, but I can confirm that over the past 10 years or so, most RV-lifers have transitioned their focus from recreation / comfort to off-grid experimentation. Essentially everywhere I go in the US, if I'm camped near others, they are going to have minimum viability for boondocking. That was not the case when I started.
Especially amidst the current political instability and apparent looming collapse of the US state, one of the simplest things that most of us can do is stabilize off-grid power in our neighborhoods, and that is quietly happening all over the place.
So, the role of vertically integrated solar (both literally and metaphorically) has more to do with the grid shape that serves our stability needs, and less to do with large-scale differences in efficiency.
In the theorical sense, sure. We could cover all of the world's needs with a solar panel in the Sahara that's 700 km on each side and handwave the transmission lines for that.
The real world however, a farmer owns a specific plot of land, has $w of capital in the back, owes $x in loans, owes y tons of crop, owns z tractors and seeds. Without centralized planning, plopping down solar panels in an optimal place isn't how the real world works.
In the theorical sense, sure. We could cover all of the world's needs with a solar panel in the Sahara that's 700 km on each side and handwave the transmission lines for that.
The real world however, a farmer owns a specific plot of land, has $w of capital in the back, owes $x in loans, owes y tons of crop, owns z tractors and seeds. Without centralized planning, plopping down solar panels in an optimal place isn't how things work.
Some of us are interested in ways to do things outside the US. Yes, even some who live in the US.
> The best solution is
is it?
> The best solution is still to put solar panels and farmland in different places where each can be optimized without concern for the other.
There's significant evidence "add solar panels" is an optimization to at least some kinds of farmland.
> farmers can't bring in tractors and cut hay when the ruminants are gone for a season
That season is typically "winter", and you wind up without much hay to cut at that point.