Why the Lights Go Out
Two things cause almost all hurricane power outages: wind and flooding. High winds snap tree branches and hurl debris into power lines. Storm surge and flooding then swamp equipment on the ground.
High winds
Branches and flying debris fall onto power lines or strike equipment.
Flooding
Storm surge and flooding swamp ground-level transformers and substation equipment.
The "String of Lights" Problem
Most power grids are centralized — think of it like one long string of holiday lights. If one bulb blows, sometimes the whole string goes dark. That's what happens to a centralized grid during a hurricane: one failure can black out an entire region.
All bulbs lit — grid is running normally.
ResetCNN, 2017"Millions without power after Hurricane Irma toppled overhead lines."
Who Gets Hit Hardest
And this isn't an equal-opportunity problem. Families with less money often can't afford a generator, can't easily leave home, and can't book a hotel with AC. When the grid goes down, it hits the most vulnerable communities the hardest — which is exactly what SDG 11 is trying to prevent.
No backup power
Families with less money often can't afford a generator.
Medical devices
Sleeping machines and other medical equipment are unavailable without power.
Dangerous heat
No air conditioning for hot conditions after the storm.
Common challenges: harder to cook food, no air conditioning for hot conditions, sleeping machines are unavailable.