All of this is wrong. It sounds like you don’t know how much more efficient hydro and aero is with leds that can be programmed to trick the plants into thinking it’s whatever season you want. Not to mention being able to grow tomatoes in Canada in the winter.
Indoor, vertical farming with aero/hydro is many many times more efficient. The 2 plants I have real numbers for (because they are similar) tomatoes and weed will grow up to twice as fast without manipulating the day/night cycle.
As for energy use. Solar is fucking dirt cheap and even without solar, it’s extremely cheap to run the lights and other systems.
Seriously my dude/dudette. Do yourself a favor and look into this. I highly doubt that everyone who is investing in this and using it now is wrong and you are the only one who knows better. There is a reason why the best weed is always hydro or aero especially when you can grow it anywhere.
You might be surprised to find out just how much produce already comes from indoor farms. It’s the going vertical with it or turning an entire floor of a building into a farm that is what is needed to feed our growing population. You can only spread out so far horizontally, vertically let’s you go as high as you can build.
Oh and you might want to look into just how damaging regular farming is for the environment. With hydro/aero you use way less fertilizer than growing in dirt along with a fraction of a fraction of the water.
There’s an inherent geometric problem with using solar for vertical farms. They use the volume of the space, which increases by a cube factor. Solar, however, increases according to surface area, which is a square factor.
You thus quickly hit a limit where you can no longer power the lights for your vertical farm by solar panels you stick on the roof. You have to have either a field of solar panels elsewhere–which might have been used to grow food the old fashioned way–or you have to use something that scales differently. Wind also scales by surface area, so not that. Geothermal or nuclear are maybes.
Possibility one way around this is tweaking the spectrum of lights that plants use. Taking full spectrum sun lighting, converting it to electricity, and then using LEDs to create full spectrum lighting isn’t going to work. However, plants primarily use only a narrow space of blue and red light as part of photosynthesis. This isn’t the full story, either, as plants do use the rest of the spectrum as signals for other biological processes.
Now, do they need the rest of that spectrum all the time and at full power? Depends on the plant. It’s complicated, and we may end up customizing lighting for every crop.
Even then, the square-cube problem will put limits on how big vertical farming facilities can get while being powered by solar and/or wind.
Thank you. I had someone explain this to me before in this kind of directly data driven way but I studied astrophysics and macro-xenobiology so I am not the person to be explaining it back out.
But yeah all that.
It makes me wonder if you could build a vertical farm like a big greenhouse made of glass though and direct light from the sun through the building using reflectors without overheating and cooking the plants but, with green energy production you really get to a point where it’s the fields for growing crops previously are now covered in mined advanced electronics that need replacing and the farming structure itself which isn’t as scalable as just adding a field to your crop rotation.
This isn’t the problem you two think it is. No one is talking about feeding an entire city from one skyscraper. But, you could feed an entire block from one or two levels of a skyscraper.
I’m now going to block you two twits because I don’t have to time for this shit right now. Going out tonight to see Gladys Knight and I have to respond to someone helping me grow my business.
You know, if you feel the need to block people who are laying out arguments and being civil, then maybe you should rethink having Internet discussions altogether.
No I know all about how incredibly efficient hydroponics can be and even deeply loved reading a research paper on using just nutrient enriched water for roots systems without the need for soil. Super cool stuff.
But still doesn’t take into account electricity use is way more power than just using the sun. There is a reason greenhouses are standard still in that they are cheap and only require basic maintenance but still let you harvest the sun as an energy source.
But scaling that to feed an entire country is basically impossible. Power use becomes outrageous and you get limited by size. You need a skyscraper to feed a city and nearly as much energy.
It works on small scale and can be much more efficient than local wild growing for small scale productions but that’s about it.
The math for how much energy we take from the sun and how much of it is absorbed by plants is not negligible. And it will not work for all crops in our current energy needs to run it. Especially with our current production rate and system.
Sorry but it’s the truth. It’s just not there and won’t be for a while.
You really need to argue don’t you?
This problem you are stuck on isn’t actually a problem. Why? Because of how much more efficient it is. No one is saying that one vertical farm will feed the entire country. We will still have local farms, home gardens, etc. This is the future of growing food both produce now and meat in the coming decades.
Yes, the solar panels only convert like 18% of the incoming light, but, again, $ for $ growing things with solar and aero/hydro is way way cheaper than dirt, relying on the sun, seasons, etc.
Seriously. Maybe stop focusing on what you think is wrong and work to improve things.
Vertical farming is the only way we will feed people in the coming decades.
