To translate: When it's hot, air conditioners use more electricity. This is because they use more electricity because they have to work harder to keep a cool temperature.

The reason why electric grids are too old to handle the load is because:

Electric grids were built for smaller populations with the assumption that we'll build more as we make more babies; AND; electric grids weren't built to handle the temperature rise from climate change.

Additionally, sometimes unnaturally high temperatures break AC systems put in place with poor planning. This is very common in UK supermarkets every summer.

since we're not that used to extreme heat in EU, units with max working temperatures of 45 degrees Celsius are pretty common and the air around the AC unit is warmer than regular outdoors air, doubly so if they're placed on the ground and the glass from the building reflects some additional heat from the sun.

the risk of this was broadcasted in our local news for home AC owners when the forecast reached 40, as lots of apartments have the AC on partly glass-encased balconies, or on walls facing direct sunlight...

>”The European Parliament has also faced blackouts this week due to energy consumption from cranking up its cooling system.”