Promised Yield, Delivered Yield: The Gap Between What Vendors Sell, What Finance Models, and What the Plant Delivers
Yield is the number that quietly underwrites every CEA business case. It shows up in the vendor pitch, in the investor model, and in the daily pressure on the grower, and it is rarely the same number in all three places. I recently sat down with Pieter Slaman and Tim Van Hissenhoven, two operators who have spent their careers on the delivery side of that number, to work through where the figure comes from and where it falls apart.
Pieter spent more than a decade scaling Little Leaf Farms into one of North America’s leading greenhouse lettuce operations before founding GaaS Solutions and taking on an advisory role with Green Gardens in Slovenia. Tim was raised in a Belgian greenhouse and now runs Cultivators, guiding operations from first business concept through technology selection, startup, and grower training. Between them they have built, advised on, and repaired enough lettuce operations to know where yield numbers come from and where they go to die.
The claim on the way in
Every operator fields the same calls. A treatment that vibrates the plant. A device that conditions the seed. A spectrum tweak that promises a step change. The headline figures cover a wide spread. As I put it to them, the claimed yield increases can run anywhere from two and a half to 25 percent, depending on how much Kool-Aid the provider has been drinking.