Down on the farm, robot-style
Machines tend to leafy greens indoors
SAN CARLOS, Calif. — Brandon Alexander would like to introduce you to Angus, the farmer of the future. He’s heavyset, weighing in at nearly 1,000 pounds, not to mention a bit slow. But he’s strong enough to hoist 800-pound pallets of maturing vegetables and can move them from place to place on his own.
Sure, Angus is a robot. But don’t hold that against him, even if he looks more like a large tanning bed than C-3PO.
To Alexander, Angus and other robots are key to a new wave of local agriculture that aims to raise lettuce, basil and other produce in metropolitan areas while conserving water and sidestepping the high costs of human labor. It’s a big challenge, and some earlier efforts have flopped. Even Google’s “moonshot” laboratory, known as X, couldn’t figure out how to make the economics work.
After raising $6 million and tinkering with autonomous robots for two years, Alexander’s startup Iron Ox says it’s ready to start delivering crops of its robotically grown vegetables to people’s salad bowls. “And they are going to be the best salads you ever tasted,” says the 33-year-old Alexander, a one-time Oklahoma farmboy turned Google engineer turned startup CEO.
Iron Ox planted its first robot farm in an 8,000-square-foot warehouse in San Carlos, California, a suburb located 25 miles south of San Francisco. Although no deals have been struck yet, Alexander says Iron Ox has been talking to San Francisco Bay area restaurants interested in buying its leafy veg-
etables and expects to begin selling to supermarkets next year.
The San Carlos warehouse is only a proving ground for Iron Ox’s long-term goals. It plans to set up robot farms in greenhouses that will rely mostly on natural sunlight instead of high-powered indoor lighting that sucks up expensive electricity. Initially, though, the company will sell its produce at a loss in order to remain competitive.
The startup relies on a hydroponic system that conserves water and automation in place of humans. The heavy lifting is done by Angus, which rolls about the indoor farm on omnidirectional wheels. Its main job is to shuttle maturing produce to another, as-yet unnamed robot, which transfers plants from smaller growing pods to larger ones, using a mechanical arm whose joints are lubricated with “food-safe” grease.
It’s a tedious process to gently pick up each of the roughly 250 plants on each pallet and transfer them to their bigger pods. Iron Ox still relies on people to clip its vegetables when they are ready for harvest, but Alexander says it is working on another robot that will eventually handle that job too.