OptionProbability
Cascading failure (like something went wrong and the recovery procedure had an issue that made it worse)
Loss of synchronism
Strain on electrical/transmission infrastructure principally caused by renewable energy sources
Low or insufficient inertia
Battery storage
Renewables made the grid less stable
Never found root cause
Accidental infrastructure damage (fallen tower, wildlife, etc)
Bad weather
The cause didn't originate in Spain (was propagated by EU grid)
Intended infrastructure damage (cable cut, bomb, etc)
It's declared a cyber attack
Cyber attack & Russia-funded
Cyber attack & independent group
"Intern plugged wrong cable"
Cyber attack & USA-funded
94
61
20
14
12
9
7
6
4
3
2
1
3-4
5-7
0
8+
28
17
11
OptionVotes
YES
NO
2061
1942
