Understanding the blackout requires reconstructing the grid as it existed before the event, examining the decisions made during the developing disturbance and identifying the engineering measures that could reduce the risk of a similar failure.
Part 1 — Spain’s 2025 Blackout: How a Voltage Crisis Brought Down the Iberian Grid
Part 2 — The Grid Before the Blackout: Generation, Topology and Voltage Control
Part 3 — The Final 90 Seconds: How the Iberian Grid Collapsed
Part 4 — Inside the Control Room: Operator Decisions Before and During the Collapse
Part 5 — Why the Defences Failed: Protection, Reactive Power and Restoration
Coming soon
Part 6 — Lessons from Iberia: How to Prevent the Next Voltage-Driven Blackout
Coming soon