[jaegerpicker]

IT'S COMPLETELY IRRELEVENT, the efficiency at generating electricity is not what powers photosynthesis. It's a chemical reaction to light wavelengths (ie the absorbing of Red and Blue light) that powers it. More watt's doesn't equal more growth, it equals more heat which allows longer growing seasons. LED's and Sunlight have EXACTLY the same level of photosynthesis, none of the math you did matters at all. For LED's you need to calculate coverage of the area not pure power. If you produce Red or Blue wavelength's that's all that matters, the Sun does that and a hell of a lot more but we don't need the power of the sun or even a tiny faction of it's power for photosynthesis, we need to heat and cool and creat weather which effect plant growth but Watt's is irrelevant.

[imtringued]

>For LED's you need to calculate coverage of the area not pure power

He already abstracted over that by using efficiency.

>none of the math you did matters at all.

One would have expected an increase in coverage to increase efficiency by 10 vs sunlight which would have require explaining another factor 10 which could have been explained by e.g. saying that converting useless wavelengths into useful wavelengths increased efficiency by 10.

You're arguing that the things you have said do not increase efficiency. That is even more damning than a ridiculous efficiency gain.

[throwaway9870]

So do the math and show us the equivalent amount of electricity to equal current farming in America.

[jaegerpicker]

WHAT MATH?!?!? Electricity doesn't have any thing to do with it except in very tiny amounts. You need light coverage not heat wattage! There is no math to do! Photosynthesis doesn't work like that. It's a chemical reaction to light wavelengths. I posted numerous papers detailing this. The unit of measure is PPFD Photosynthesis Photon Flux Density, that's the coverage of the number of light wavelengths the plant can absorb. LED's provide plenty of PPFD's, exactly the same as the Sun. So all you need is the correct amount to cover your growing space with a minimum amount.

[imtringued]

>Electricity doesn't have any thing to do with it except in very tiny amounts.

Vertical farming uses a lot of electricity.

>You need light coverage not heat wattage!

The 100x efficiency factor already implies that the plant can absorb heat for photosynthesis. None of that "heat wattage" is being wasted.

[UncleEntity]

> WHAT MATH?!?!?

The math that shows how much electricity must go in to have the equivalent amount of plants come out.

Watt per PPFD or something along those lines.