This depends of course on what you grow, how many growing seasons you have in your area and how much growing area you have around the Subpod to be fed by the system.
Take a simple example of growing salad greens: starting with a small raised garden bed of 90 cm/3 feet wide by 1.5 meters/5 feet long and one Subpod. Since salad greens are just over 0.5 kilos and takes an average of 45 days to reach full size, if you grew 30 plants in that system then you would produce 15 kilograms of salad greens in 45 days.
If you picked the leaves off the plants rather than harvesting them whole, then you would keep growing salad greens until they went to seed or died.
It is hard to quantify the exact amount of fresh fruit and veggies you can produce from one Subpod, but we would love to hear back about how much food you can produce each year!
Another factor to consider is vertical growing and how much potential growing space there is around 1 Subpod by using trellises and walls.