The Spanish Government has released a public report of analysis on the massive power outage that struck the country on April 28th.
The document concludes that the incident had a multifactorial origin, with a temporary cascade of events that progressively unbalanced the system and culminated in the peninsular electricity zero due to overvoltage.
It also includes a battery of recommendations ranging from improving the control and monitoring of agent behaviour to increasing the level of interconnection with France.