But the grid has changed. There are more renewable energy sources, from which power isn’t always available – like solar panels at night or wind turbines on calm days.

The way power plants know what real-time power adjustments are needed is by closely monitoring the grid frequency. The goal is to provide electricity at a constant frequency—60 hertz—at all times.

National Grid's Eastern New York Regional Control Center in Guilderland, pictured here on June 26. Bethlehem residents experienced consecutive nights of power outages after extreme weather and ...

ROCHESTER, N.Y. — Power has been restored for most customers on Monday morning after a wave of power outages on Sunday night in Monroe and Wayne counties. At one point, 1,700 customers were ...

Bull Run was the only single-generator coal-fired power plant in the TVA system before its retirement. When the generator went into operation in 1967, it was the largest in the world in the volume ...

About a year ago, O'Gorman used his truck for a three-day power outage at his 1845-built, 3,700-square-foot home, where he loses power a few times a year. It was cool enough where the house didn't ...

HOUSTON, Texas (KTRK) -- A new study ranks Texas as the second most at-risk state in the country for power outages this summer, underscoring the ongoing strain on the state's electric grid. The ...