Archive · 18 Aug 2025
Heatwaves Strain Electricity Grids, Causing Outages
Hot weather is making it harder to get electricity.
Nuclear plants in France had to close because of jellyfish in their cooling systems, and power went out in Iraq because everyone was using fans.
Heat causes problems for power plants, like coal and gas, because they need cool water and air to work.
Even wind turbines don't work as well when it's hot.
It's a big problem because our homes, hospitals, and computers need power to stay cool, and the hotter it gets, the harder it is to get electricity.
Heatwaves are causing electricity infrastructure failures worldwide.
Jellyfish swarms shut down French nuclear power plants by clogging cooling systems.
Increased demand during heatwaves and water shortages exacerbate power supply issues.
High temperatures decrease the efficiency of wind turbines and transmission cables.
Data centers and hospitals face IT disruptions due to overheating during heatwaves.
- Who
- Power plants, data centers, hospitals, and consumers.
- What
- Heatwaves are causing widespread disruptions to electricity generation and distribution.
- When
- Ongoing, with increased frequency and intensity.
- Where
- France, Iraq, India, Australia, Siberia, Europe and globally.
- Why
- Rising temperatures and related climate impacts are stressing infrastructure.
Impact of Climate Change
Immediate Effects
Perspective
Impact of Climate Change
Heatwaves are a direct result of a changing climate.
Immediate Effects
The immediate effects of heatwaves are more of a concern than long term climate issues.
- Jellyfish Impact
- Shut down French nuclear power plants.
- Iraq Outage
- Power outage due to high demand during a heatwave.
- Generator Failure
- Cincinnati Open tennis tournament suspended due to overheating.
- Coal Plant Outages
- Probability increases by 3.2 percentage points during heatwaves.
- Wind Decline
- Wind availability can decline by 30% to 50% during heatwaves.
