Scientists generate electricity from Earth's rotation—first evidence of a planet-powered energy source

A team of US-based researchers has demonstrated that it is possible to harvest a small amount of electricity directly from the Earth’s rotation through its magnetic field, suggesting a novel future source of clean energy.

Led by Princeton University physicist Christopher Chyba, along with colleagues Kevin Hand and Thomas Chyba, the researchers built a hollow cylinder made of manganese-zinc ferrite and oriented it at a specific angle—57° relative to Earth’s magnetic field and axis of rotation.

When positioned correctly, the device generated a continuous direct current voltage of about 18 microvolts—a tiny but groundbreaking reading.

This experiment confirms earlier theoretical work from 2016, when Chyba and Hand first proposed that electricity could be drawn from Earth’s spin.

Their tests replicated those predictions, overcoming the traditional expectation—dating back to Faraday—that such energy could not be tapped .

The research, published in Physical Review Research and covered by major science outlets, noted the voltage disappears when the device is reoriented—underscoring that alignment and material properties are critical.

Experts regard the achievement as an intriguing proof of concept. However, laboratory output remains minuscule—only a few microvolts—making it impractical for current power demands.

Researchers acknowledge the need for independent verification and substantial engineering advances to scale the technology .

If successfully scaled, this approach could supplement existing renewable energy systems—such as solar, wind, tidal, or geothermal—by tapping into Earth’s rotational kinetic energy, although scale-up and global impact remain distant goals.