Overview
- An ENTSO‑E panel of 45 experts calls the April 28 event Europe’s most serious power incident in two decades and confirms the Iberian Peninsula fully disconnected at 12:33:21.
- A large solar‑wind surplus concentrated in southwest Spain exceeded 10,000 MW and fed exports to Portugal, France and Morocco before a rapid voltage rise from 12:32 triggered sequential trips.
- Investigators say access to telemetry was limited, with eight of 33 generators not supplying full records, and they highlight an unexplained Granada disconnection that precipitated a 2,200 MW loss in under two seconds.
- Eurelectric argues the interim report still does not establish the causes of most disconnections and criticizes its narrow focus on April 28 rather than previous days’ oscillations.
- Spain’s grid operator REE says the findings align with its timeline, noting initial trips occurred in distribution networks, and ENTSO‑E praises restoration of the high‑voltage network by about 16:00 the same day.