Ranked: The Largest Power Outages in the U.S. (2013–2023)

What We're Showing

This graphic shows the 10 largest power outages in the U.S. from the last decade, using data from the U.S. Department of Energy (DOE). 

Key Takeaways

• All 10 of the largest U.S. power outages in the last decade resulted from severe weather, highlighting the need for climate resiliency.
• Hurricane Irma tops this list by leaving 3.5 million Floridians without power in 2017.
• As of 2023, 70% of U.S. transmission lines were over 25 years old. Their age makes them more susceptible to power outages, cyber-attacks, and sparking wildfires.

Read the full article on the Decarbonization Channel, sponsored by the National Public Utilities Council.