Reversible computing startup aims to cut data center energy waste
Hannah Earley co-founded Vaire Computing to develop chips that recover energy typically lost as heat, using a technique called reversible computing. Her design includes a patent-pending resonator that stores recovered energy, and the company recently demonstrated a chip that recovers more energy than it consumes. This approach could significantly improve energy efficiency in data centers and personal devices.
Earley's academic trajectory shifted after reading Michael Frank's 1999 thesis on reversible computing, prompting her to develop software that converts standard programs into reversible formats. Her Cambridge supervisor, Gos Micklem, eventually declined co-authorship because her work had grown too specialized for him to explain.
Vaire's recent milestone involved a resonator component that achieves net energy recovery. External expert Igor Markov acknowledges the novelty but cautions that the firm must deliver progressively realistic demonstrations to secure commercial backing. Earley co-founded the company with Rodolfo Rosini after finishing her doctorate in 2021.
If Vaire's reversible computing scales, data centers could significantly reduce cooling and power demands, potentially lowering operational costs and environmental footprints. Consumers may eventually see longer battery life in laptops and phones. However, the technology remains early-stage, so its societal impact depends on overcoming engineering hurdles and gaining industry adoption. Success could reshape energy consumption in the semiconductor sector, but failure would leave current heat-dissipation norms unchanged.