US Electricity Generation Jumped 4.5% in March as Record Heat Baked the West

US net electricity generation rose 4.5% in March 2026 as record heat drove power demand. The Silicon Review reports on the EIA data showing the West's biggest March jump at 9.4% as homes and businesses cranked up air conditioners.

Net electricity generation in the United States jumped 4.5 percent in March 2026 compared to the same month last year, driven by record-breaking heat across the western states that sent residents and businesses cranking up their air conditioners, according to the U.S. Energy Information Administration's Electric Power Monthly report.

All regions of the country saw increased electricity generation, but the West experienced the largest jump at 9.4 percent, followed by the Southeast at 5.2 percent, Florida at 3.1 percent, the Central region at 2.9 percent, and the Northeast and Texas at 1.4 percent and 1.0 percent respectively.

The heat wave that gripped the West in March was the primary driver of the surge. California, Arizona, Nevada, and other western states saw temperatures soar 20 to 30 degrees above normal for extended periods, with Phoenix hitting 100 degrees Fahrenheit in March for the first time in nearly four decades.

Natural gas remained the largest source of electricity generation, accounting for 44 percent of the total, up from 41 percent a year earlier. Coal's share fell to 13 percent from 15 percent, while nuclear held steady at 18 percent. Renewables, including hydro, solar, and wind, provided approximately 22 percent of net generation, with solar showing the strongest growth at 15 percent year-over-year.

Utility-scale solar capacity has expanded significantly in the western U.S., with several large projects coming online in California, Arizona, and Nevada. However, during the March heat wave, natural gas peaker plants were called upon heavily during late afternoon and evening hours when solar generation faded but temperatures remained high.

The EIA's preliminary data for April suggests continued strong electricity demand as unseasonably warm weather persisted across parts of the country. Summer peak demand forecasts have been revised upward by grid operators in California, Texas, and the Midwest.

As U.S. electricity generation jumped 4.5 percent in March driven by record heat, The Silicon Review examines how extreme weather events are increasingly shaping power demand patterns and straining grid infrastructure across the country.