What caused massive power outage in Spain, Portugal and parts of France? Here’s what officials say

Millions of people in Spain and Portugal were left without electricity on Monday due to a nationwide power outage. | Source: Hindustan Times
Ralated News
0. Chair of Spanish electricity grid hits out at ‘misinformation’ after mass blackouts - The Independent1. The European Power Outage: What Happened And Why It Matters For Thailand - Mondaq
2. Cause of massive power cut that plunged Spain and Portugal into chaos revealed - Sky News
3. Spain says 'overvoltage' caused major April power outage - France 24
4. Spanish minister rules out cyber-attack as cause of April blackout, after expert report - The Guardian
5. Spain says April blackout was caused by grid failures and poor planning, not a cyberattack - CNN
6. Miscalculation by Spanish power grid operator REE contributed to massive blackout, report finds - Reuters
7. Blackout, Fire Warnings Flashed From Home Sensors Hours Before Crises - Bloomberg.com
8. Spain's power grid rejects blame for blackout, pledges record investment - Reuters
9. Blame game breaks out over blackout in Spain and Portugal - Financial Times