Futurology

1856 readers

58 users here now

founded 1 year ago

MODERATORS

253

A new vertical farm, with a footprint of less than an acre, can produce 1.8 million kg of fruit annually. (newatlas.com)

submitted 3 months ago* (last edited 3 months ago) by Lugh to c/futurology

65 comments fedilink hide all child comments

you are viewing a single comment's thread
view the rest of the comments

[–] NotMyOldRedditName@lemmy.world 4 points 2 months ago* (last edited 2 months ago) (1 children)

Consumer panels are up to 23.5% now, and you can get bifacial cells that can boost that by up to 30%, so up to around 30.55%

Also the light is bouncing around that room, not bouncing off and then back into the sky like it would from the sun, and it's not necessarily all full spectrum, it's the spectrums the plants need, also reducing power compared to what the sun gives it.

Edit: Making shit up now, but what if photosynthesis only needs 30% of the spectrum, and the bifacial panels are 30% it might even be near equal.

[–] GenosseFlosse@feddit.org 1 points 2 months ago* (last edited 2 months ago) (1 children)

https://youtu.be/ISAKc9gpGjw?t=832

[–] NotMyOldRedditName@lemmy.world 2 points 2 months ago* (last edited 2 months ago)

You realize that this picture addresses nothing of what I said? It's using 15% when we can get 30%. And still has nothing about what spectrum the plants actually need of what touches them.

Edit: Also a quick search showed 2.9umol/j leds now, and maybe we have higher, so that's up to 870 (3.5x more than image or 62.14% of the sun) hitting the plant now of exactly what it needs instead of 1400 that isn't all what it needs.

Edit: another article from 2017 says the theoretical maximum for LEDs is 4.9-5.1 and we should reach 3.5 within a decade (2027). Also I think I didn't understand the measurement and the 1400 from the sun is the 1400 it needs, but I'm not completely sure.

Also that's 9 years old,