A 300-megawatt reactor designed to cool itself without pumps just became the first small ...

The US Nuclear Regulatory Commission issued the first-ever construction permit for a commercial small modular reactor—a 300 MW BWRX-300 by GE Vernova Hitachi—at the Clinch River site in Tennessee, four months ahead of schedule, allowing the Tennessee Valley Authority to begin building with completion expected by September 2032.

This Wire brief sits within Fusion42's coverage of Energy Storage, and 2 sources have reported it between 1 Oct 2026 and 5 Oct 2026.