Thorvald, the Robot Replacing Farm Chemicals With Light, Makes TIME's 2026 Best Inventions List

In the strawberry tunnels of Kent and Hampshire, the night shift has no people. Around midnight, a low, driverless machine glides between the rows, bathing the plants in ultraviolet light as it goes. It is not harvesting. It is not spraying. It is fighting fungus with photons.

The machine is called Thorvald, built by Saga Robotics of Oslo, Norway, and on October 15 it was named to TIME's List of the Best Inventions of 2026. The company says its electric robots are now treating an estimated 30 percent of the United Kingdom's tabletop strawberry production and protecting roughly 2,500 acres of California vineyards, replacing repeated chemical fungicide treatments with precisely delivered UV-C light.

For a sector that has watched billions in agtech promise evaporate, Thorvald matters for a simple reason: it is already working at commercial scale, and growers are paying for it as a service rather than betting on a prototype.

What Thorvald actually does

Thorvald is a modular, self-navigating platform built for vineyards and soft fruit. Its headline trick is high-intensity UV-C light treatment, delivered at night, to control powdery mildew and other crop diseases. Applied on a consistent preventative schedule, the light damages the DNA of fungal spores and halts disease before symptoms spread, which lets growers cut chemical fungicide programs dramatically.

Night operation is not a gimmick. UV-C is most effective in darkness (sunlight can blunt its effect on some organisms), and running after hours means the robot never competes with pickers or other field crews. A single Thorvald unit can treat up to 1.5 hectares of strawberries per night, working twice a week through the season, with no one in the field.

The platform does more than shine lights. Because it already drives every row, it collects continuous crop intelligence along the way, and its modular design supports additional tasks including flower and fruit counting for yield prediction, dispensing predatory mites, and cutting runners. As chief product officer Damian Flynn puts it, the robot is designed "so that every pass through the crop does more than one job."

Treatment is sold as a service: the grower and Saga Robotics agree an operating pattern, and the robot treats the designated area autonomously from a docking container, needing only power and a 4G connection. No infield labor, no sprayer, no tractor.

The scale of the deployment

The numbers are what separate Thorvald from the demo-day robots of agtech's past. In 2026 alone, the company reports roughly 2,500 acres of California wine grapes under protection across the state's North Coast and Central Coast regions, plus an estimated 30 percent of Britain's tabletop strawberry crop, which is grown in polytunnels rather than open fields.

The customer list in California reads like a tour of premium wine country. Named users include Antinori Napa Valley, Beckstoffer Vineyards, Bonterra Organic Estates, Silver Oak, The Donum Estate, Tablas Creek Vineyard, and Walsh Vineyard Management, alongside vineyard management companies such as Mesa Vineyard Management and Silverado Farming Company.

Globally, the company says more than 150 Thorvald units are deployed, with operations in Norway, the United Kingdom, and the United States and a team of about 50 people. The growth curve in the UK is steep: growers including Clock House Farm in Kent and the New Forest Fruit Company in Hampshire praised the system earlier this year when Thorvald treated about 10 percent of the British strawberry crop, a figure that has since tripled to 30 percent.

Thorvald treats disease with light instead of chemistry, and the 30 percent of Britain's strawberry crop now under its care shows commercial growers are buying the argument.

Why light beats chemistry here

The fungicide treadmill is the problem Thorvald is built to escape. Powdery mildew is a relentless fungal disease of grapes and strawberries, and conventional control means repeated chemical sprays through the season, with all the costs that implies: the chemicals themselves, diesel-powered spray equipment, worker exposure to sprays, and soil compaction from heavy tractor passes. Over time, fungi also develop resistance, forcing growers to spray more or switch products.

Light sidesteps most of that. Thorvald is electric, so it produces no direct exhaust emissions during operation, and its low weight limits soil compaction compared with a tractor-pulled sprayer. Because treatment happens autonomously at night, workers are not in the field during applications, reducing exposure to chemical sprays when sprays are still needed. Agritech reporting on UK strawberry deployments puts pesticide reductions on treated plots at 60 to 90 percent.

There is a regulatory tailwind too. The technology has been integrated into California's CORE incentive program for sustainable farming equipment, which rewards growers for adopting lower-emission machinery. In the UK, where tabletop strawberry production is intensive and highly sensitive to residues, a non-chemical preventative fits the direction of travel.

From a master's project to TIME

Thorvald's origins are academic. The platform began in 2014 as a master's project at the Norwegian University of Life Sciences, and Saga Robotics was founded in 2016 by Pål Johan From and Lars Grimstad to commercialize it. A decade of field development followed, spent working directly with growers rather than chasing venture-scale hype.

The capital followed the deployment, not the other way around. The company has secured 9.5 million euros in equity financing led by Nysnø Climate Investments, with participation from investors including Aker Capital, Praesidium Agri-Food Tech, Cibus Capital, and Rabo Investments, earmarked for expanding pesticide-free UV-C farming in the UK and the US.

The TIME recognition caps a year of industry validation. In August, Thorvald was named Overall Agriculture Robotics Solution of the Year at the 2026 AgTech Breakthrough Awards, and earlier in the year it appeared as a Rising Star in the SVG Ventures THRIVE Top 50 AgTech report. TIME's annual list selects 300 inventions judged on originality, efficacy, ambition, and impact.

CEO Sacha de La Noë framed the recognition as proof that chemical-light agriculture is already viable: the future of farming, he said, is far less dependent on chemicals, and Thorvald is demonstrating that future at commercial scale.

The real test now is whether the platform's modular promise holds. Disease control pays the bills, but Saga's long-term bet is that the same robot passing every row at night becomes the data and labor backbone of the farm: counting fruit, predicting yields, releasing beneficial insects, and trimming runners, all on one autonomous pass. If that works, the strawberry tunnels of Kent are not an edge case. They are the prototype.