The World Meteorological Organization announced in late July that an exceptionally strong El Niño event is intensifying through August-October, with sea surface temperature anomalies in the central and eastern equatorial Pacific expected to exceed 2.9 degrees Celsius and peak in November. This marks the strongest El Niño in the modern record, surpassing previous significant events in 2015-16, 1997-98, and 1982-83. A positive Indian Ocean Dipole is simultaneously developing, which tends to increase drought and fire risk in the Indian Ocean basin.
Europe is currently experiencing severe drought conditions unrelated to the Pacific phenomenon, exemplified by Romania’s nuclear facility Cernavoda being forced into controlled shutdown for the first time since 2003 due to insufficient water for reactor cooling. This shutdown represents approximately one-fifth of Romania’s electricity supply, prompting automotive manufacturers to curtail operations to preserve power for broader consumption. The situation illustrates how modern electrical grids can face critical failures under environmental stress.
The El Niño event poses significant threats to global energy supply through multiple pathways. Hydroelectric generation faces the primary impact, with approximately half of Latin America’s electricity generation dependent on hydropower; during the previous strong El Niño in 2015-16, Colombian reservoir levels dropped 60 to 70 percent. Solar generation also faces reduction due to decreased surface radiation during El Niño events, with losses approaching 5 to 10 percent in key solar growth regions. India faces particularly acute challenges, with modeling predicting an 18 terawatt-hour generation gap from reduced wind and hydropower output combined with elevated cooling demand.
Supply chain complications extend beyond energy generation. The Panama Canal has implemented four separate draft restrictions through the fiscal year, with water levels declining as hydroelectric generation is being throttled to conserve resources. This creates a bottleneck for energy product transport precisely when elevated transit volumes are occurring, partly due to rerouting from other geopolitical disruptions.
Some market participants anticipate offsetting benefits. Atlantic hurricane forecasts predict below-normal activity with 75 percent probability, which reduces risk to Gulf of Mexico oil and gas production and associated export terminals. However, El Niño years historically concentrate remaining storm activity toward the Gulf Coast and subtropics, creating localized vulnerability. Financial institutions estimate the combined El Niño and war-related energy price effects could moderate global disinflation trends by approximately 0.3 percentage points in the following year. The World Meteorological Organization will issue its next comprehensive assessment in early September.
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