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Vulnerability of US power grid identified

A study published in Physical Review E found that a loss of just 2% of US power grid substations can cause catastrophic failure. Researchers identified high-load transmission substations as critical points, emphasizing the need for increased redundancy and distributed generation.

Blackout prevention effort launched as anniversary looms

The Eastern Interconnection Phasor Project provides real-time system-wide data to utilities and transmission operators, potentially preventing cascading loss of power. The project uses satellite-based time clocks and sophisticated signal processing to enable more accurate monitoring and analysis.

New solid-state power switch safeguards electric service

Researchers at Virginia Tech have developed a high-power semiconductor switch called the Emitter Turn-off (ETO) Thyristor, suitable for fast and dynamic voltage support in the nation's congested power grid. The ETO switch offers fast switching speed, rugged turn-off capacity, and voltage control, reducing energy storage elements and size.

GQ GMC-500Plus Geiger Counter

GQ GMC-500Plus Geiger Counter logs beta, gamma, and X-ray levels for environmental monitoring, training labs, and safety demonstrations.