What happened

Emergency services responded after Police Scotland received a report of an explosion at the underground Cruachan pumped-storage station. Operator Drax said smoke—not a confirmed explosion—was detected in the cavern and the site was safely evacuated. Four fire appliances attended; firefighters reported no flames, no injuries were recorded, and the nearby A85 reopened after roughly two hours. The reviewed reporting did not establish the cause, equipment damage, a fire or any loss of generating availability, so those outcomes are not inferred. The cause remained under investigation in the cited account.

When cited sources give different casualty, damage or spill figures for this event, they’re reported side by side above rather than merged into one number. See how confidence levels work.