cold weather

Extreme temperature and weather events have become more prevalent in the past decade. The December 2022 Christmas freeze in the southeast U.S. saw many areas experiencing single-digit temperatures. The February 2021 Texas freeze saw temperatures in Dallas reach as low as –2F. Meanwhile, the January–February 2019 Midwest Arctic Polar Vortex saw temperatures plunge as low […]

The North American Electric Reliability Corp. (NERC) is warning that much of the central U.S.—a region that stretches from the Great Lakes into southern Texas—may face critical power deficiencies during extreme winter weather conditions over the next three months. Natural gas supply disruptions and low hydropower conditions could also imperil power reliability in New England […]

Brutally cold temperatures in the midwestern and northeastern U.S. spurred grid operator alerts as natural gas demand has surged, power prices have soared, and there have been forced generator outages.  The polar vortex, an extreme cold event characterized by back-to-back cold fronts, has so far prompted states of emergency in Wisconsin, Illinois, and Michigan. On […]

Despite record low temperatures and widespread generation outages during the polar vortex, bulk power system reliability was maintained, says the North American Electric Reliability Corp. (NERC) in a newly released analysis of the extreme cold weather event that engulfed most of the nation this January.  The Jan. 6–7, 2014, weather condition that resulted in temperatures […]

Before the polar vortex earlier this year, several severe cold weather events had presented comparable power generation operational challenges. POWER ranks those events here in terms of loss of generation capacity. Common themes observed in both severe and lesser cold weather incidents involve constraints on natural gas fuel supplies to generating plants, and generating unit […]

A sustained Arctic blast composed of freezing rain, record snowfalls, and high winds hit 22 states, from Mexico to New England in early February 2011. The extreme weather severely affected the power generation

During the Jan. 3–12, 2014, polar vortex that brought record-setting cold temperatures and severe winter weather to much of the U.S., nuclear plants not only survived, but thrived. According to the Nuclear

Last winter’s polar vortex was a reminder that, despite several years of mild winters, colder months can still pack a wallop. Decades of coal, gas, and nuclear plant operations have taught plant operators

Twice this year, PJM flirted with blackouts when brutal winter storms (dubbed a polar vortex) struck the Eastern U.S. in January. The cold weather set a new winter peak demand record of 141,500 MW on Jan. 7