Story perspectives

UKAEA Achieves Breakthrough in Fusion Energy Stability

10/27/2025

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Summary

Story summary

The UK Atomic Energy Authority (UKAEA) stabilized plasma in the MAST Upgrade spherical tokamak using 3D magnetic coils, a first for this configuration, and suppressed edge localized modes (ELMs) that risk damaging reactor components.
UKAEA demonstrated independent control of plasma exhaust, improving thermal management for the device.
The innovations support the STEP fusion power plant planned for the 2040s and contribute to global clean energy efforts.

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Story summary

The UK Atomic Energy Authority (UKAEA) stabilized plasma in the MAST Upgrade spherical tokamak using 3D magnetic coils, a first for this configuration, and suppressed edge localized modes (ELMs) that risk damaging reactor components.
UKAEA demonstrated independent control of plasma exhaust, improving thermal management for the device.
The innovations support the STEP fusion power plant planned for the 2040s and contribute to global clean energy efforts.