F1 glossary · Power unit
MGU-H
The heat-energy motor-generator used in the previous hybrid formula and removed for 2026.
In plain English
This term belongs to the Power unit side of Formula 1. Listen for it when commentators explain what a driver, car or team is doing and why the lap time or race situation is changing.
2026 context
Terminology on this site follows the current 2026 regulations. Older broadcasts and articles may use language that has since been replaced or narrowed.