With the increasing world population, we will need more nutrition. At the same time we do not have enough surface area to grow our food in the traditional way. The solution for this problem could be vertical farming. By building this vertical farms on top of flats, skyscrapers and other buildings instead of using flat ground and with efficient use of energy and controlling the light, temperature and water and food supply, we can optimize the crop production on large scale. In this way we will be prepared for the future.