3 ms·
Light requirements for crops are proportional to the volume of the vertical farm. Light input is proportional to the surface area (actually a little). So vertic
by maliker 11y ago
Light requirements for crops are proportional to the volume of the vertical farm. Light input is proportional to the surface area (actually a little). So vertical farm light requirements are much bigger than the amount of light hitting the building.
- hanniabu 11y agoThat's true for a warehouse or similar scenario. I believe the parent was talking about in a greenhouse. You can layer to a degree and then you only need supplemental lighting for the understories.
- fweespeech 11y agoYou are ignoring the fact a farm space isn't 100% plants. You need spaces for workers to move and so forth. Lets say you have 3 stories, of which the "center" of the bottom 2 is used for workers. You still get additional space compared to a single story for the same land cost. If the cost of construction is less than the cost of land, it works perfectly [as is the case in singapore]. About a third of a farm is just space for the workers to move around and harvest things We are talking literally single light bulb is all the supplemental light you need which isn't what your blog post you linked to is willing to admit. http://www.skygreens.com/ http://www.skygreens.com/ You can see how they layer things in the image, the limits really aren't there in the way you imply in high-land-cost areas.
- maliker 11y agoI see how skygreens can produce high-value crops that don't require much light in a small amount of space. But they're still using a lot of energy that isn't required in conventional farming. What is their energy input per kCalorie produced?