A prolonged heat wave is expected to grip the central and eastern United States through the Independence Day weekend, raising concerns about power grid reliability and travel disruptions, reported by Reuters.
The report said soaring demand for air conditioning has pushed wholesale electricity prices sharply higher, with prices jumping more than 243% in New England and 101% in New York City.
New York City Mayor Zohran Mamdani urged residents to conserve electricity by reducing air conditioner use and limiting energy consumption.
Transportation agencies also warned of disruptions. Amtrak, New Jersey Transit, and Delta Air Lines issued heat-related advisories, while Illinois officials cautioned motorists about possible road damage caused by extreme temperatures.
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Extreme heat wave threatens U.S. power grids and July 4 travel https://t.co/dmgGzJmGOt
— CNBC (@CNBC) July 3, 2026
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