It’s no secret that the electrical grid is aging, but one part stands out from the rest. Transformers haven’t changed much since Thomas Edison made his first light bulb. Now, a string of startups are ...

Data centers have become the “killer application for solid-state transformers right now,” Lukic told Ars. Several US companies, including Amperesand, Heron Power and DG Matrix, have collectively ...

The iron-core transformer is the 140-year-old technology that props up both the electrical grid and AI companies. The devices are clunky but reliable, which explains why they’re still in use: If it ...