# Solid-State Transformers

Source: https://stateofthefuture.io/energy-power/power-electronics/solid-state-transformers/
Field: Energy & Power
Last updated: 2026-11-06
Also known as: SST, solid state transformer, MV solid-state transformer
Author: Lawrence Lundy-Bryan, State of the Future (https://stateofthefuture.io/)

A solid-state transformer replaces a line-frequency copper-and-iron transformer with high-frequency power electronics, usually silicon carbide switches around a small high-frequency transformer. It takes medium-voltage AC from the grid and delivers a regulated output directly, such as 800 V DC for an AI rack, in one unit, with control over power flow that a passive transformer cannot give.

The market, its sizing and the capture question live on **Solid State Transformer Grid**.

## Related concepts

- [Silicon Carbide](https://stateofthefuture.io/materials/substrates/silicon-carbide/)
- [Wide-Bandgap Semiconductors](https://stateofthefuture.io/materials/substrates/wide-bandgap-semiconductors/)
- [Solid-State Circuit Breakers](https://stateofthefuture.io/energy-power/power-electronics/solid-state-circuit-breakers/)