this post was submitted on 21 Oct 2024
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So what is this indoor farming for cities?
I remember those boxes to grow salad in, vertically stacked, interesting concept because no need for toxic stuff and almost no water, and it's right there so no need for shipping.
You still need fertilizer and electricity that is less efficient than sunlight to grow indoors.
But somebody once gave terrible math about being able to feed a city from a vertical skyscraper farm and it's been latched onto very hard as a futurism solution.
Precisely that, hydroponics to be more precise. It’s not everything, but a great start
Been growing plants for 30-years, using zero sunlight to full sunlight. The difference in energy use, manpower, all that, is stunning.
Food is food because it contains loads of energy. We eat corn not oak leaves. That energy has to be put into the plant, at a loss, to get energy out. TANSTAAFL, literally.