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A comment on Japanese firm to open world’s first robot-run farm. Parent comment

Re:Japanese firm to open world’s first robot-run farm by Joof on Tuesday February 16, 2016 @07:16PM (#11114162)
Nobody seems to be pointing out that it is unlikely to be cost efficient as well (sun is free), which is what matters.
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Re:Japanese firm to open world’s first robot-run farm by vectorjohn on Tuesday February 16, 2016 @11:41PM (#11115357)
Sun is not free. Sun requires land. If (and I don't think we're there yet) you can get to where the sun gathered by PV can be used to grow more plants than direct sunlight, and you're in a space constrained place like Japan, it starts to make sense.

I mean, you can stack farms vertically if artificial light is economical. You can't stack sun-lit farms vertically.

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