Under strain- international insights into electricity grid outages

Due to climate change, electricity outages could become more frequent in many countries in the coming years. A new study by EconPol Europe examines electricity outages in consumer grids from 2013 to 2023 across five countries — Germany, Australia, Brazil, China, and Mexico — drawing on daily data from regulatory agencies and distribution system operators. The dataset includes information on the timing, planned or unplanned nature, and causes of outages. As ifo researcher Jacqueline Adelowo notes, while Germany has a relatively reliable electricity grid, extreme weather and heatwaves will increasingly put pressure on its infrastructure. The ongoing integration of European electricity grids generally enhances supply resilience by allowing resources across countries to offset imbalances, though it also raises the risk of cascading failures when disruptions propagate rapidly across borders, underlining the need for coordinated governance and joint operational protocols alongside grid expansion.

The findings reveal significant seasonal and cross-country variation in electricity outage patterns. In Germany, unplanned outages are lowest in winter and rise sharply by midsummer — averaging 3,616 events in December and 5,546 in July, a 53 percent increase. The most severe single-day event recorded was during windstorm Niklas on 31 March 2015, with 1,887 interruptions in one day. On average, unplanned outages in Germany lasted between 1.5 and 2 hours, with only one percent exceeding 18 hours. By comparison, China recorded outages frequently lasting more than six hours, with extreme cases reaching up to 73 hours, while Brazil and Mexico registered substantially higher absolute outage numbers than Germany. These findings confirm that while Germany is in a comparatively strong position, the intensification of extreme heat, thunderstorms, and severe storms poses a growing and measurable threat to grid stability.