The upcoming "Super" El Niño, also dubbed "Godzilla" El Niño, could bring some relief to electricity bills for Americans this winter, even as rising costs and high demand from data centers strain household budgets ahead of the November midterms. The National Oceanic and Atmospheric Administration (NOAA) predicts a "very strong" El Niño this fall and winter, which historically leads to warmer, drier winters in the northern U.S. and cooler, wetter conditions in the south.
Warmer winters in northern regions like the Pacific Northwest, Northern Plains, and Great Lakes could reduce heating demand, lowering natural gas prices, a primary source of heating and electricity generation. J. Isaac Miller, professor of economics at the University of Missouri, notes that this could put downward pressure on natural gas prices, though the impact on electricity bills may be modest. Meanwhile, southern states might face disruptions from extreme precipitation, potentially causing outages but not significantly altering energy costs.
The Upper Midwest and Northern Plains are expected to see the largest reduction in heating demand, according to Erik Smith of the Electric Power Research Institute. However, the Pacific Northwest, which generates half of U.S. hydropower, could face reduced snowpack and reservoir storage, potentially undermining any winter savings with lower hydropower supply in the following spring and summer. The Southeast and Gulf Coast may see slight increases in electric heating load, though not enough to shift utility costs significantly.
Historical data from past Super El Niño events, such as 1991-1992, 1997-98, and 2015-16, show savings of 3.6 percent, 3.5 percent, and 2.1 percent, respectively, in Washington State. Nationally, the 2015-16 winter saw a 6 percent decrease in residential electricity demand and higher gas storage levels. While this winter’s event may be stronger, experts caution that the climate system has warmed since then, making past data an illustration rather than a forecast.
Overall, national heating demand tends to fall during El Niño winters, even if the South is cooler than normal. The average residential electricity bill in the U.S. is about $158 per month, and a 2 percent savings could mean about $3.16 in monthly savings for consumers in affected northern states.