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Data centers become "killer application" for new power transformer tech

Solid-state transformers could also benefit EV charging and someday households.

NC State's 1 MW solid-state transformer system during deployment for field testing on a live distribution feeder at EPRI's Lenox, Mass., test site. The shipping container houses, from left to right, the charger enclosure, the SST enclosure, and the breaker box enclosure.
Image: Ars Technica
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Solid-state transformers could also benefit EV charging and someday households.

The short version

  • Data centers have become the largest driver of surging electricity demand that is straining US power grids.
  • But the AI data center boom has also accelerated investment in a technology that could provide a silver lining for everyone—solid-state power transformers that replace industrial-age technology with modern power electronics.
  • Manufacturing constraints, coupled with the scramble to upgrade US power infrastructure, have meant utility companies and other customers must wait up to several years for delivery of new power transformers.

What happened

That is not only a problem for expanding power grid infrastructure to support growing electricity demand, but also delays the process of replacing aging power transformers. By comparison, solid-state transformers rely on high-frequency semiconductor switching to perform voltage conversions, and can be mass-manufactured using semiconductor materials such as silicon carbide.

Why it matters

Such transformers are physically smaller and lighter than conventional transformers, have modular designs that enable easy upgrades or replacements of parts, and can perform as all-in-one power electronic devices by handling multiple tasks.

Summary by Nerd News Network. Read the full article at Ars Technica via the links above and below.

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