STOCKHOLM — Radar-Equipped Air Conditioners Promise Lower Bills

Air conditioner makers are racing to add radar and camera-based tracking that follows people from room to room, but researchers say the technology's effect on power bills is still unclear, according to Wired.

The push comes as global cooling demand climbs. Air conditioners and electric fans account for roughly 20 percent of electricity used in buildings worldwide, Wired reports, citing figures showing the appliances contribute 3 to 4 percent of total greenhouse gas emissions. The number of AC units in use could reach 5.5 billion by 2050, per the same report.

When Did Motion-Sensing AC Technology Begin?

Mitsubishi Electric introduced the first motion and occupancy sensors for air conditioning in 1994, Wired reports. Infrared 3D sensing followed in the mid-2010s, setting the stage for today's AI-driven systems that track occupants with what the outlet describes as millimeter-level precision.

Which Companies Launched Smart AC Features in 2026?

The rollout accelerated through the year. Samsung introduced its Bespoke AI system in March, Wired reports, and Dyson added a Find+Follow feature to its Purifier Cool fan in June. By September's IFA trade show, Chinese manufacturers Hisense, Dreo and Midea had joined the field. LG's latest DualCool AI AC uses a 5-meter radar sensor to detect people and target cooling based on daily movement patterns, according to Wired. Hisense's Companion Living AC pulls data from smart home sensors to identify routine "target paths" and precool rooms before occupants arrive.

How Do Radar-Equipped Air Conditioners Track People?

Dyson's approach relies on a low-resolution camera rather than radar, feeding 17-point, stick-figure-style coordinates into an on-device algorithm that deletes the data instantly, Wired reports. "It can tell that you're a human, whether you're sitting or standing, which direction you're moving," said Alex Hudson, an environmental care engineer at Dyson, in comments to Wired. "It might map your arms and shoulders." The system has no facial recognition and can oscillate 350 degrees to direct airflow toward up to six people in a room, per the outlet.

Does Targeted Cooling Actually Lower Energy Bills?

The appliances are designed primarily to improve comfort, Wired reports, with energy savings framed as a secondary benefit. "It definitely has the potential to reduce the total energy use for air-conditioning," said Björn Palm, senior professor in energy technology at Sweden's KTH Royal Institute of Technology, in remarks to Wired. Palm did not quantify the potential savings, and Wired notes that how much energy targeted cooling actually saves remains unclear.

Why Does Global AC Demand Still Threaten Emissions Goals?

Even with smarter targeting, the scale of projected AC adoption — up to 5.5 billion units by 2050, per Wired — means individual efficiency gains from tracking features may not offset rising total demand. Wired frames the technology as one piece of a broader shift that also includes compact heat pumps and climate-safe refrigerants, rather than a standalone fix for cooling's climate footprint.

The full reporting, including additional detail on refrigerant changes and heat-pump designs mentioned but not detailed here, is available from Wired.