Chattanooga Times Free Press

Meet the farmers of the future: Robots

- BY MICHAEL LIEDTKE

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 said 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,” said the 33-yearold Alexander, a onetime 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 said Iron Ox has been talking to San Francisco Bay area restaurant­s interested in buying its leafy vegetables 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.

During the next few years, Iron Ox wants to open robot farms near metropolit­an areas across the U.S. to serve up fresher produce to restaurant­s and supermarke­ts. Most of the vegetables and fruit consumed in the U.S. is grown in California, Arizona, Mexico and other nations. That means many people in U.S. cities are eating lettuce that’s nearly a week old by the time it’s delivered.

There are bigger stakes as well. The world’s population is expected to swell to 10 billion by 2050 from about 7.5 billion now, making it important to find ways to feed more people without further environmen­tal impact, according

“If we can feed people using robots, what could be more impactful than that?”

— BRANDON ALEXANDER, IRON OX FOUNDER

to a report from the World Resources Institute .

Iron Ox, Alexander reasons, can be part of the solution if its system can make the leap from its small, laboratory-like setting to much larger greenhouse­s.

The startup relies on a hydroponic system that conserves water and automation in place of humans who seem increasing­ly less interested in U.S. farming jobs that pay an average of $13.32 per hour, according to the U.S. Department of Agricultur­e. Nearly half of U.S. farmworker­s planting and picking crops aren’t in the U.S. legally, based on a survey by the U.S. Department of Labor.

The heavy lifting on Iron Ox’s indoor farm 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, but the robot doesn’t seem to mind the work. Iron Ox still relies on people to clip its vegetables when they are ready for harvest, but Alexander said it is working on another robot that will eventually handle that job too.

Alexander formerly worked on robotics at Google X, but worked on drones, not indoor farms. While there, he met Jon Binney, Iron Ox’s co-founder and chief technology officer. The two men became friends and began to brainstorm about ways they might be able to use their engineerin­g skills for the greater good.

“If we can feed people using robots, what could be more impactful than that?” Alexander said.

 ?? AP PHOTO/ERIC RISBERG ?? A robotic arm lifts plants being grown at Iron Ox, a robotic indoor farm, in San Carlos, Calif. At the indoor farm, robot farmers tend to rows of vegetables.
AP PHOTO/ERIC RISBERG A robotic arm lifts plants being grown at Iron Ox, a robotic indoor farm, in San Carlos, Calif. At the indoor farm, robot farmers tend to rows of vegetables.

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