This founder is teaching chips how to recycle (their energy)
Throughout the history of the computer chip, engineers have treated waste heat as an inevitable cost of a calculation. Hannah Earley, however, thinks it’s a design choice. Earley, 31, is cofounder and chief technology officer of Vaire Computing, a startup building chips that recycle energy usually thrown away as heat—a strategy known as reversible computing.…
Hannah Earley, a 31-year-old founder and chief technology officer of Vaire Computing, is developing chips that recycle energy usually lost as heat during calculations. This approach, called reversible computing, aims to make data centers and electronic devices more energy-efficient. Conventional chips discard the information they no longer need as heat, but Earley's method keeps that information intact, allowing computations to be run backward and recover some energy.
While the idea dates back over 50 years, Earley's team has created a new resonator—microscopic chip components that store recovered energy for later use. Last year, Vaire announced a chip that recovered more energy than it consumed, a significant step in this emerging field. Earley's journey into chip design began in her youth, with programming experience spanning the web to transistors.
Her PhD research at Cambridge focused on using materials like DNA for computation, but her interest in reversible computing grew after studying Michael Frank's 1999 thesis. Vaire has raised over $12 million and is working to integrate their reversible computing technology into existing devices and manufacturing systems.
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