I had done some research on vertical farming a couple years ago for a guy interested in the warehouse farming business
I can give you figures to work with – it was romaine lettuce (and other salad greens but I remember the romaine)
The first warehouse space he was looking at was 15,470 sq ft and is 40 feet high. It rents for $12.00 to $13.00 per sq ft. plus utilities and common area maintenance
The first warehouse space he was looking at was 107,600 sq ft and is 40 feet high. It rents for $12.00 to $13.00 per sq ft. plus utilities and common area maintenance
Each head of lettuce needs 1 sq ft of space plus room for the growing tray (5 inches deep) and a foot of height so each one needs 12” x 12” x 17”
So in the 15,470 space you can grow 27 levels high – 15,000 lettuce plants on each level – (405,000 plants at any one time)
In the 107,600 space you can also grow 27 levels high – 107,000 plants on each level – (2,880,000 plants at any one time)
Each head of lettuce needs 65 days to mature from seed…. you can get 5 crops ‘per year’ (It needs to be set up so lettuce is constantly being planted and harvested)
Each head of lettuce can wholesale for $0.75 to $1.25 per head depending on the season.
So…with 27 levels… once you start you would plant two (?) levels a week….it will take 65 days…9 weeks for the first two level to be ripe …and after that you will harvest and plant every week.
SO…looking at the 15,000 plants per level – if you harvest and sell 2 levels (30,000 plants) every week…and you sell them for $0.75 each…that is a gross income of $22,500.00 per week ( *52 weeks is $1,170,000.00 )
But you will ALSO need the Hydrophonic equipment and I cannot find my notes on that.